From 01636eb970a029897b06fb96026941429212ddd9 Mon Sep 17 00:00:00 2001 From: "Patil, Rachna" Date: Tue, 16 Oct 2012 12:55:43 +0530 Subject: mfd: ti_tscadc: Add support for TI's TSC/ADC MFDevice Add the mfd core driver which supports touchscreen and ADC. With this patch we are only adding infrastructure to support the MFD clients. Signed-off-by: Patil, Rachna Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 11 ++ drivers/mfd/Makefile | 1 + drivers/mfd/ti_am335x_tscadc.c | 250 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 262 insertions(+) create mode 100644 drivers/mfd/ti_am335x_tscadc.c (limited to 'drivers/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index acab3ef..9bba7f7 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -94,6 +94,17 @@ config MFD_TI_SSP To compile this driver as a module, choose M here: the module will be called ti-ssp. +config MFD_TI_AM335X_TSCADC + tristate "TI ADC / Touch Screen chip support" + select MFD_CORE + select REGMAP + select REGMAP_MMIO + help + If you say yes here you get support for Texas Instruments series + of Touch Screen /ADC chips. + To compile this driver as a module, choose M here: the + module will be called ti_am335x_tscadc. + config HTC_EGPIO bool "HTC EGPIO support" depends on GENERIC_HARDIRQS && GPIOLIB && ARM diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index d8ccb63..442c17e 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o obj-$(CONFIG_MFD_DAVINCI_VOICECODEC) += davinci_voicecodec.o obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o obj-$(CONFIG_MFD_TI_SSP) += ti-ssp.o +obj-$(CONFIG_MFD_TI_AM335X_TSCADC) += ti_am335x_tscadc.o obj-$(CONFIG_MFD_STA2X11) += sta2x11-mfd.o obj-$(CONFIG_MFD_STMPE) += stmpe.o diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c new file mode 100644 index 0000000..14df67b --- /dev/null +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -0,0 +1,250 @@ +/* + * TI Touch Screen / ADC MFD driver + * + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +static unsigned int tscadc_readl(struct ti_tscadc_dev *tsadc, unsigned int reg) +{ + unsigned int val; + + regmap_read(tsadc->regmap_tscadc, reg, &val); + return val; +} + +static void tscadc_writel(struct ti_tscadc_dev *tsadc, unsigned int reg, + unsigned int val) +{ + regmap_write(tsadc->regmap_tscadc, reg, val); +} + +static const struct regmap_config tscadc_regmap_config = { + .name = "ti_tscadc", + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, +}; + +static void tscadc_idle_config(struct ti_tscadc_dev *config) +{ + unsigned int idleconfig; + + idleconfig = STEPCONFIG_YNN | STEPCONFIG_INM_ADCREFM | + STEPCONFIG_INP_ADCREFM | STEPCONFIG_YPN; + + tscadc_writel(config, REG_IDLECONFIG, idleconfig); +} + +static int __devinit ti_tscadc_probe(struct platform_device *pdev) +{ + struct ti_tscadc_dev *tscadc; + struct resource *res; + struct clk *clk; + struct mfd_tscadc_board *pdata = pdev->dev.platform_data; + int irq; + int err, ctrl; + int clk_value, clock_rate; + + if (!pdata) { + dev_err(&pdev->dev, "Could not find platform data\n"); + return -EINVAL; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "no memory resource defined.\n"); + return -EINVAL; + } + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + dev_err(&pdev->dev, "no irq ID is specified.\n"); + return -EINVAL; + } + + /* Allocate memory for device */ + tscadc = devm_kzalloc(&pdev->dev, + sizeof(struct ti_tscadc_dev), GFP_KERNEL); + if (!tscadc) { + dev_err(&pdev->dev, "failed to allocate memory.\n"); + return -ENOMEM; + } + tscadc->dev = &pdev->dev; + tscadc->irq = irq; + + res = devm_request_mem_region(&pdev->dev, + res->start, resource_size(res), pdev->name); + if (!res) { + dev_err(&pdev->dev, "failed to reserve registers.\n"); + err = -EBUSY; + goto err; + } + + tscadc->tscadc_base = devm_ioremap(&pdev->dev, + res->start, resource_size(res)); + if (!tscadc->tscadc_base) { + dev_err(&pdev->dev, "failed to map registers.\n"); + err = -ENOMEM; + goto err; + } + + tscadc->regmap_tscadc = devm_regmap_init_mmio(&pdev->dev, + tscadc->tscadc_base, &tscadc_regmap_config); + if (IS_ERR(tscadc->regmap_tscadc)) { + dev_err(&pdev->dev, "regmap init failed\n"); + err = PTR_ERR(tscadc->regmap_tscadc); + goto err; + } + + pm_runtime_enable(&pdev->dev); + pm_runtime_get_sync(&pdev->dev); + + /* + * The TSC_ADC_Subsystem has 2 clock domains + * OCP_CLK and ADC_CLK. + * The ADC clock is expected to run at target of 3MHz, + * and expected to capture 12-bit data at a rate of 200 KSPS. + * The TSC_ADC_SS controller design assumes the OCP clock is + * at least 6x faster than the ADC clock. + */ + clk = clk_get(&pdev->dev, "adc_tsc_fck"); + if (IS_ERR(clk)) { + dev_err(&pdev->dev, "failed to get TSC fck\n"); + err = PTR_ERR(clk); + goto err_disable_clk; + } + clock_rate = clk_get_rate(clk); + clk_put(clk); + clk_value = clock_rate / ADC_CLK; + if (clk_value < MAX_CLK_DIV) { + dev_err(&pdev->dev, "clock input less than min clock requirement\n"); + err = -EINVAL; + goto err_disable_clk; + } + /* TSCADC_CLKDIV needs to be configured to the value minus 1 */ + clk_value = clk_value - 1; + tscadc_writel(tscadc, REG_CLKDIV, clk_value); + + /* Set the control register bits */ + ctrl = CNTRLREG_STEPCONFIGWRT | + CNTRLREG_TSCENB | + CNTRLREG_STEPID | + CNTRLREG_4WIRE; + tscadc_writel(tscadc, REG_CTRL, ctrl); + + /* Set register bits for Idle Config Mode */ + tscadc_idle_config(tscadc); + + /* Enable the TSC module enable bit */ + ctrl = tscadc_readl(tscadc, REG_CTRL); + ctrl |= CNTRLREG_TSCSSENB; + tscadc_writel(tscadc, REG_CTRL, ctrl); + + err = mfd_add_devices(&pdev->dev, pdev->id, tscadc->cells, + TSCADC_CELLS, NULL, 0, NULL); + if (err < 0) + goto err_disable_clk; + + device_init_wakeup(&pdev->dev, true); + platform_set_drvdata(pdev, tscadc); + + return 0; + +err_disable_clk: + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); +err: + return err; +} + +static int __devexit ti_tscadc_remove(struct platform_device *pdev) +{ + struct ti_tscadc_dev *tscadc = platform_get_drvdata(pdev); + + tscadc_writel(tscadc, REG_SE, 0x00); + + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); + + mfd_remove_devices(tscadc->dev); + + return 0; +} + +#ifdef CONFIG_PM +static int tscadc_suspend(struct device *dev) +{ + struct ti_tscadc_dev *tscadc_dev = dev_get_drvdata(dev); + + tscadc_writel(tscadc_dev, REG_SE, 0x00); + pm_runtime_put_sync(dev); + + return 0; +} + +static int tscadc_resume(struct device *dev) +{ + struct ti_tscadc_dev *tscadc_dev = dev_get_drvdata(dev); + unsigned int restore, ctrl; + + pm_runtime_get_sync(dev); + + /* context restore */ + ctrl = CNTRLREG_STEPCONFIGWRT | CNTRLREG_TSCENB | + CNTRLREG_STEPID | CNTRLREG_4WIRE; + tscadc_writel(tscadc_dev, REG_CTRL, ctrl); + tscadc_idle_config(tscadc_dev); + tscadc_writel(tscadc_dev, REG_SE, STPENB_STEPENB); + restore = tscadc_readl(tscadc_dev, REG_CTRL); + tscadc_writel(tscadc_dev, REG_CTRL, + (restore | CNTRLREG_TSCSSENB)); + + return 0; +} + +static const struct dev_pm_ops tscadc_pm_ops = { + .suspend = tscadc_suspend, + .resume = tscadc_resume, +}; +#define TSCADC_PM_OPS (&tscadc_pm_ops) +#else +#define TSCADC_PM_OPS NULL +#endif + +static struct platform_driver ti_tscadc_driver = { + .driver = { + .name = "ti_tscadc", + .owner = THIS_MODULE, + .pm = TSCADC_PM_OPS, + }, + .probe = ti_tscadc_probe, + .remove = __devexit_p(ti_tscadc_remove), + +}; + +module_platform_driver(ti_tscadc_driver); + +MODULE_DESCRIPTION("TI touchscreen / ADC MFD controller driver"); +MODULE_AUTHOR("Rachna Patil "); +MODULE_LICENSE("GPL"); -- cgit v1.1 From 2b99bafab19145a72e2c557326fc4662a864a162 Mon Sep 17 00:00:00 2001 From: "Patil, Rachna" Date: Tue, 16 Oct 2012 12:55:44 +0530 Subject: input: TSC: ti_tsc: Convert TSC into a MFDevice This patch converts touchscreen into a MFD client. All the register definitions, clock initialization, etc has been moved to MFD core driver. Signed-off-by: Patil, Rachna Signed-off-by: Samuel Ortiz --- drivers/mfd/ti_am335x_tscadc.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index 14df67b..d812be4 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -24,6 +24,7 @@ #include #include +#include static unsigned int tscadc_readl(struct ti_tscadc_dev *tsadc, unsigned int reg) { @@ -62,15 +63,19 @@ static int __devinit ti_tscadc_probe(struct platform_device *pdev) struct resource *res; struct clk *clk; struct mfd_tscadc_board *pdata = pdev->dev.platform_data; + struct mfd_cell *cell; int irq; int err, ctrl; int clk_value, clock_rate; + int tsc_wires; if (!pdata) { dev_err(&pdev->dev, "Could not find platform data\n"); return -EINVAL; } + tsc_wires = pdata->tsc_init->wires; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(&pdev->dev, "no memory resource defined.\n"); @@ -161,6 +166,12 @@ static int __devinit ti_tscadc_probe(struct platform_device *pdev) ctrl |= CNTRLREG_TSCSSENB; tscadc_writel(tscadc, REG_CTRL, ctrl); + /* TSC Cell */ + cell = &tscadc->cells[TSC_CELL]; + cell->name = "tsc"; + cell->platform_data = tscadc; + cell->pdata_size = sizeof(*tscadc); + err = mfd_add_devices(&pdev->dev, pdev->id, tscadc->cells, TSCADC_CELLS, NULL, 0, NULL); if (err < 0) -- cgit v1.1 From 5e53a69b44e893227b046a7bc74db3cb40d7f39b Mon Sep 17 00:00:00 2001 From: "Patil, Rachna" Date: Tue, 16 Oct 2012 12:55:45 +0530 Subject: IIO : ADC: tiadc: Add support of TI's ADC driver This patch adds support for TI's ADC driver. This is a multifunctional device. Analog input lines are provided on which voltage measurements can be carried out. You can have upto 8 input lines. Signed-off-by: Patil, Rachna Acked-by: Jonathan Cameron Signed-off-by: Samuel Ortiz --- drivers/mfd/ti_am335x_tscadc.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index d812be4..e947dd8 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -25,6 +25,7 @@ #include #include +#include static unsigned int tscadc_readl(struct ti_tscadc_dev *tsadc, unsigned int reg) { @@ -67,14 +68,23 @@ static int __devinit ti_tscadc_probe(struct platform_device *pdev) int irq; int err, ctrl; int clk_value, clock_rate; - int tsc_wires; + int tsc_wires, adc_channels = 0, total_channels; if (!pdata) { dev_err(&pdev->dev, "Could not find platform data\n"); return -EINVAL; } + if (pdata->adc_init) + adc_channels = pdata->adc_init->adc_channels; + tsc_wires = pdata->tsc_init->wires; + total_channels = tsc_wires + adc_channels; + + if (total_channels > 8) { + dev_err(&pdev->dev, "Number of i/p channels more than 8\n"); + return -EINVAL; + } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { @@ -172,6 +182,12 @@ static int __devinit ti_tscadc_probe(struct platform_device *pdev) cell->platform_data = tscadc; cell->pdata_size = sizeof(*tscadc); + /* ADC Cell */ + cell = &tscadc->cells[ADC_CELL]; + cell->name = "tiadc"; + cell->platform_data = tscadc; + cell->pdata_size = sizeof(*tscadc); + err = mfd_add_devices(&pdev->dev, pdev->id, tscadc->cells, TSCADC_CELLS, NULL, 0, NULL); if (err < 0) -- cgit v1.1 From cd0f34b08f98af72bb2f74fe4bd251558fc734d3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Thu, 12 Jul 2012 09:57:52 +0000 Subject: mfd: mc13xxx: Change probing details for mc13xxx devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This removes auto-detection of which variant of mc13xxx is used because mc34708 uses a different layout in the revision register that doesn't allow differentiation any more. Signed-off-by: Uwe Kleine-König Acked-by: Marc Reilly Signed-off-by: Samuel Ortiz --- drivers/mfd/mc13xxx-core.c | 77 ++++++++++++++++------------------------------ drivers/mfd/mc13xxx-i2c.c | 16 ++++++---- drivers/mfd/mc13xxx-spi.c | 25 ++++++++------- drivers/mfd/mc13xxx.h | 17 ++++++---- 4 files changed, 60 insertions(+), 75 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c index 1aba023..40afdb9 100644 --- a/drivers/mfd/mc13xxx-core.c +++ b/drivers/mfd/mc13xxx-core.c @@ -410,62 +410,36 @@ static irqreturn_t mc13xxx_irq_thread(int irq, void *data) return IRQ_RETVAL(handled); } -static const char *mc13xxx_chipname[] = { - [MC13XXX_ID_MC13783] = "mc13783", - [MC13XXX_ID_MC13892] = "mc13892", -}; - #define maskval(reg, mask) (((reg) & (mask)) >> __ffs(mask)) -static int mc13xxx_identify(struct mc13xxx *mc13xxx) +static void mc13xxx_print_revision(struct mc13xxx *mc13xxx, u32 revision) { - u32 icid; - u32 revision; - int ret; - - /* - * Get the generation ID from register 46, as apparently some older - * IC revisions only have this info at this location. Newer ICs seem to - * have both. - */ - ret = mc13xxx_reg_read(mc13xxx, 46, &icid); - if (ret) - return ret; - - icid = (icid >> 6) & 0x7; - - switch (icid) { - case 2: - mc13xxx->ictype = MC13XXX_ID_MC13783; - break; - case 7: - mc13xxx->ictype = MC13XXX_ID_MC13892; - break; - default: - mc13xxx->ictype = MC13XXX_ID_INVALID; - break; - } + dev_info(mc13xxx->dev, "%s: rev: %d.%d, " + "fin: %d, fab: %d, icid: %d/%d\n", + mc13xxx->variant->name, + maskval(revision, MC13XXX_REVISION_REVFULL), + maskval(revision, MC13XXX_REVISION_REVMETAL), + maskval(revision, MC13XXX_REVISION_FIN), + maskval(revision, MC13XXX_REVISION_FAB), + maskval(revision, MC13XXX_REVISION_ICID), + maskval(revision, MC13XXX_REVISION_ICIDCODE)); +} - if (mc13xxx->ictype == MC13XXX_ID_MC13783 || - mc13xxx->ictype == MC13XXX_ID_MC13892) { - ret = mc13xxx_reg_read(mc13xxx, MC13XXX_REVISION, &revision); - - dev_info(mc13xxx->dev, "%s: rev: %d.%d, " - "fin: %d, fab: %d, icid: %d/%d\n", - mc13xxx_chipname[mc13xxx->ictype], - maskval(revision, MC13XXX_REVISION_REVFULL), - maskval(revision, MC13XXX_REVISION_REVMETAL), - maskval(revision, MC13XXX_REVISION_FIN), - maskval(revision, MC13XXX_REVISION_FAB), - maskval(revision, MC13XXX_REVISION_ICID), - maskval(revision, MC13XXX_REVISION_ICIDCODE)); - } +/* These are only exported for mc13xxx-i2c and mc13xxx-spi */ +struct mc13xxx_variant mc13xxx_variant_mc13783 = { + .name = "mc13783", + .print_revision = mc13xxx_print_revision, +}; +EXPORT_SYMBOL_GPL(mc13xxx_variant_mc13783); - return (mc13xxx->ictype == MC13XXX_ID_INVALID) ? -ENODEV : 0; -} +struct mc13xxx_variant mc13xxx_variant_mc13892 = { + .name = "mc13892", + .print_revision = mc13xxx_print_revision, +}; +EXPORT_SYMBOL_GPL(mc13xxx_variant_mc13892); static const char *mc13xxx_get_chipname(struct mc13xxx *mc13xxx) { - return mc13xxx_chipname[mc13xxx->ictype]; + return mc13xxx->variant->name; } int mc13xxx_get_flags(struct mc13xxx *mc13xxx) @@ -653,13 +627,16 @@ int mc13xxx_common_init(struct mc13xxx *mc13xxx, struct mc13xxx_platform_data *pdata, int irq) { int ret; + u32 revision; mc13xxx_lock(mc13xxx); - ret = mc13xxx_identify(mc13xxx); + ret = mc13xxx_reg_read(mc13xxx, MC13XXX_REVISION, &revision); if (ret) goto err_revision; + mc13xxx->variant->print_revision(mc13xxx, revision); + /* mask all irqs */ ret = mc13xxx_reg_write(mc13xxx, MC13XXX_IRQMASK0, 0x00ffffff); if (ret) diff --git a/drivers/mfd/mc13xxx-i2c.c b/drivers/mfd/mc13xxx-i2c.c index 9d18dde..4a0afc7 100644 --- a/drivers/mfd/mc13xxx-i2c.c +++ b/drivers/mfd/mc13xxx-i2c.c @@ -24,7 +24,7 @@ static const struct i2c_device_id mc13xxx_i2c_device_id[] = { { .name = "mc13892", - .driver_data = MC13XXX_ID_MC13892, + .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892, }, { /* sentinel */ } @@ -34,7 +34,7 @@ MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id); static const struct of_device_id mc13xxx_dt_ids[] = { { .compatible = "fsl,mc13892", - .data = (void *) &mc13xxx_i2c_device_id[0], + .data = &mc13xxx_variant_mc13892, }, { /* sentinel */ } @@ -76,11 +76,15 @@ static int mc13xxx_i2c_probe(struct i2c_client *client, return ret; } - ret = mc13xxx_common_init(mc13xxx, pdata, client->irq); + if (client->dev.of_node) { + const struct of_device_id *of_id = + of_match_device(mc13xxx_dt_ids, &client->dev); + mc13xxx->variant = of_id->data; + } else { + mc13xxx->variant = (void *)id->driver_data; + } - if (ret == 0 && (id->driver_data != mc13xxx->ictype)) - dev_warn(mc13xxx->dev, - "device id doesn't match auto detection!\n"); + ret = mc13xxx_common_init(mc13xxx, pdata, client->irq); return ret; } diff --git a/drivers/mfd/mc13xxx-spi.c b/drivers/mfd/mc13xxx-spi.c index 0bdb43a..9b1e608 100644 --- a/drivers/mfd/mc13xxx-spi.c +++ b/drivers/mfd/mc13xxx-spi.c @@ -28,10 +28,10 @@ static const struct spi_device_id mc13xxx_device_id[] = { { .name = "mc13783", - .driver_data = MC13XXX_ID_MC13783, + .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13783, }, { .name = "mc13892", - .driver_data = MC13XXX_ID_MC13892, + .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892, }, { /* sentinel */ } @@ -39,8 +39,8 @@ static const struct spi_device_id mc13xxx_device_id[] = { MODULE_DEVICE_TABLE(spi, mc13xxx_device_id); static const struct of_device_id mc13xxx_dt_ids[] = { - { .compatible = "fsl,mc13783", .data = (void *) MC13XXX_ID_MC13783, }, - { .compatible = "fsl,mc13892", .data = (void *) MC13XXX_ID_MC13892, }, + { .compatible = "fsl,mc13783", .data = &mc13xxx_variant_mc13783, }, + { .compatible = "fsl,mc13892", .data = &mc13xxx_variant_mc13892, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids); @@ -144,19 +144,18 @@ static int mc13xxx_spi_probe(struct spi_device *spi) return ret; } - ret = mc13xxx_common_init(mc13xxx, pdata, spi->irq); + if (spi->dev.of_node) { + const struct of_device_id *of_id = + of_match_device(mc13xxx_dt_ids, &spi->dev); - if (ret) { - dev_set_drvdata(&spi->dev, NULL); + mc13xxx->variant = of_id->data; } else { - const struct spi_device_id *devid = - spi_get_device_id(spi); - if (!devid || devid->driver_data != mc13xxx->ictype) - dev_warn(mc13xxx->dev, - "device id doesn't match auto detection!\n"); + const struct spi_device_id *id_entry = spi_get_device_id(spi); + + mc13xxx->variant = (void *)id_entry->driver_data; } - return ret; + return mc13xxx_common_init(mc13xxx, pdata, spi->irq); } static int __devexit mc13xxx_spi_remove(struct spi_device *spi) diff --git a/drivers/mfd/mc13xxx.h b/drivers/mfd/mc13xxx.h index bbba06f..78bf4c3 100644 --- a/drivers/mfd/mc13xxx.h +++ b/drivers/mfd/mc13xxx.h @@ -13,19 +13,24 @@ #include #include -enum mc13xxx_id { - MC13XXX_ID_MC13783, - MC13XXX_ID_MC13892, - MC13XXX_ID_INVALID, +#define MC13XXX_NUMREGS 0x3f + +struct mc13xxx; + +struct mc13xxx_variant { + const char *name; + void (*print_revision)(struct mc13xxx *mc13xxx, u32 revision); }; -#define MC13XXX_NUMREGS 0x3f +extern struct mc13xxx_variant + mc13xxx_variant_mc13783, + mc13xxx_variant_mc13892; struct mc13xxx { struct regmap *regmap; struct device *dev; - enum mc13xxx_id ictype; + const struct mc13xxx_variant *variant; struct mutex lock; int irq; -- cgit v1.1 From 0312e024d6cde5ef02900c4c6e2f5bb982e24af5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=83=C2=B6nig?= Date: Thu, 12 Jul 2012 09:57:53 +0000 Subject: mfd: mc13xxx: Add support for mc34708 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Uwe Kleine-König Acked-by: Marc Reilly Signed-off-by: Samuel Ortiz --- drivers/mfd/mc13xxx-core.c | 21 +++++++++++++++++++++ drivers/mfd/mc13xxx-i2c.c | 6 ++++++ drivers/mfd/mc13xxx-spi.c | 4 ++++ drivers/mfd/mc13xxx.h | 3 ++- 4 files changed, 33 insertions(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c index 40afdb9..2a9b100 100644 --- a/drivers/mfd/mc13xxx-core.c +++ b/drivers/mfd/mc13xxx-core.c @@ -119,6 +119,11 @@ #define MC13XXX_REVISION_FAB (0x03 << 11) #define MC13XXX_REVISION_ICIDCODE (0x3f << 13) +#define MC34708_REVISION_REVMETAL (0x07 << 0) +#define MC34708_REVISION_REVFULL (0x07 << 3) +#define MC34708_REVISION_FIN (0x07 << 6) +#define MC34708_REVISION_FAB (0x07 << 9) + #define MC13XXX_ADC1 44 #define MC13XXX_ADC1_ADEN (1 << 0) #define MC13XXX_ADC1_RAND (1 << 1) @@ -424,6 +429,16 @@ static void mc13xxx_print_revision(struct mc13xxx *mc13xxx, u32 revision) maskval(revision, MC13XXX_REVISION_ICIDCODE)); } +static void mc34708_print_revision(struct mc13xxx *mc13xxx, u32 revision) +{ + dev_info(mc13xxx->dev, "%s: rev %d.%d, fin: %d, fab: %d\n", + mc13xxx->variant->name, + maskval(revision, MC34708_REVISION_REVFULL), + maskval(revision, MC34708_REVISION_REVMETAL), + maskval(revision, MC34708_REVISION_FIN), + maskval(revision, MC34708_REVISION_FAB)); +} + /* These are only exported for mc13xxx-i2c and mc13xxx-spi */ struct mc13xxx_variant mc13xxx_variant_mc13783 = { .name = "mc13783", @@ -437,6 +452,12 @@ struct mc13xxx_variant mc13xxx_variant_mc13892 = { }; EXPORT_SYMBOL_GPL(mc13xxx_variant_mc13892); +struct mc13xxx_variant mc13xxx_variant_mc34708 = { + .name = "mc34708", + .print_revision = mc34708_print_revision, +}; +EXPORT_SYMBOL_GPL(mc13xxx_variant_mc34708); + static const char *mc13xxx_get_chipname(struct mc13xxx *mc13xxx) { return mc13xxx->variant->name; diff --git a/drivers/mfd/mc13xxx-i2c.c b/drivers/mfd/mc13xxx-i2c.c index 4a0afc7..bfc1284 100644 --- a/drivers/mfd/mc13xxx-i2c.c +++ b/drivers/mfd/mc13xxx-i2c.c @@ -26,6 +26,9 @@ static const struct i2c_device_id mc13xxx_i2c_device_id[] = { .name = "mc13892", .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892, }, { + .name = "mc34708", + .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708, + }, { /* sentinel */ } }; @@ -36,6 +39,9 @@ static const struct of_device_id mc13xxx_dt_ids[] = { .compatible = "fsl,mc13892", .data = &mc13xxx_variant_mc13892, }, { + .compatible = "fsl,mc34708", + .data = &mc13xxx_variant_mc34708, + }, { /* sentinel */ } }; diff --git a/drivers/mfd/mc13xxx-spi.c b/drivers/mfd/mc13xxx-spi.c index 9b1e608..afca4f9 100644 --- a/drivers/mfd/mc13xxx-spi.c +++ b/drivers/mfd/mc13xxx-spi.c @@ -33,6 +33,9 @@ static const struct spi_device_id mc13xxx_device_id[] = { .name = "mc13892", .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892, }, { + .name = "mc34708", + .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708, + }, { /* sentinel */ } }; @@ -41,6 +44,7 @@ MODULE_DEVICE_TABLE(spi, mc13xxx_device_id); static const struct of_device_id mc13xxx_dt_ids[] = { { .compatible = "fsl,mc13783", .data = &mc13xxx_variant_mc13783, }, { .compatible = "fsl,mc13892", .data = &mc13xxx_variant_mc13892, }, + { .compatible = "fsl,mc34708", .data = &mc13xxx_variant_mc34708, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids); diff --git a/drivers/mfd/mc13xxx.h b/drivers/mfd/mc13xxx.h index 78bf4c3..460ec5c 100644 --- a/drivers/mfd/mc13xxx.h +++ b/drivers/mfd/mc13xxx.h @@ -24,7 +24,8 @@ struct mc13xxx_variant { extern struct mc13xxx_variant mc13xxx_variant_mc13783, - mc13xxx_variant_mc13892; + mc13xxx_variant_mc13892, + mc13xxx_variant_mc34708; struct mc13xxx { struct regmap *regmap; -- cgit v1.1 From ada8a8a13b13a2749818524a7949935f68d2b3eb Mon Sep 17 00:00:00 2001 From: Wei WANG Date: Mon, 29 Oct 2012 13:49:33 +0800 Subject: mfd: Add realtek pcie card reader driver Realtek PCI-E card reader driver adapts requests from upper-level sdmmc/memstick layer to the real physical card reader. Signed-off-by: Wei WANG Reviewed-by: Arnd Bergmann Tested-by: Borislav Petkov Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 9 + drivers/mfd/Makefile | 3 + drivers/mfd/rtl8411.c | 251 ++++++++++ drivers/mfd/rts5209.c | 223 +++++++++ drivers/mfd/rts5229.c | 205 ++++++++ drivers/mfd/rtsx_pcr.c | 1251 ++++++++++++++++++++++++++++++++++++++++++++++++ drivers/mfd/rtsx_pcr.h | 32 ++ 7 files changed, 1974 insertions(+) create mode 100644 drivers/mfd/rtl8411.c create mode 100644 drivers/mfd/rts5209.c create mode 100644 drivers/mfd/rts5229.c create mode 100644 drivers/mfd/rtsx_pcr.c create mode 100644 drivers/mfd/rtsx_pcr.h (limited to 'drivers/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 9bba7f7..d0cb4d4 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -63,6 +63,15 @@ config MFD_SM501_GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. +config MFD_RTSX_PCI + tristate "Support for Realtek PCI-E card reader" + depends on PCI + help + This supports for Realtek PCI-Express card reader including rts5209, + rts5229, rtl8411, etc. Realtek card reader supports access to many + types of memory cards, such as Memory Stick, Memory Stick Pro, + Secure Digital and MultiMediaCard. + config MFD_ASIC3 bool "Support for Compaq ASIC3" depends on GENERIC_HARDIRQS && GPIOLIB && ARM diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 442c17e..a4093a4 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -9,6 +9,9 @@ obj-$(CONFIG_MFD_88PM805) += 88pm805.o 88pm80x.o obj-$(CONFIG_MFD_SM501) += sm501.o obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o +rtsx_pci-objs := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o +obj-$(CONFIG_MFD_RTSX_PCI) += rtsx_pci.o + obj-$(CONFIG_HTC_EGPIO) += htc-egpio.o obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c new file mode 100644 index 0000000..89f046c --- /dev/null +++ b/drivers/mfd/rtl8411.c @@ -0,0 +1,251 @@ +/* Driver for Realtek PCI-Express card reader + * + * Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + * + * Author: + * Wei WANG + * No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China + */ + +#include +#include +#include +#include + +#include "rtsx_pcr.h" + +static u8 rtl8411_get_ic_version(struct rtsx_pcr *pcr) +{ + u8 val; + + rtsx_pci_read_register(pcr, SYS_VER, &val); + return val & 0x0F; +} + +static int rtl8411_extra_init_hw(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, CD_PAD_CTL, + CD_DISABLE_MASK | CD_AUTO_DISABLE, CD_ENABLE); +} + +static int rtl8411_turn_on_led(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, CARD_GPIO, 0x01, 0x00); +} + +static int rtl8411_turn_off_led(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, CARD_GPIO, 0x01, 0x01); +} + +static int rtl8411_enable_auto_blink(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, CARD_AUTO_BLINK, 0xFF, 0x0D); +} + +static int rtl8411_disable_auto_blink(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, CARD_AUTO_BLINK, 0x08, 0x00); +} + +static int rtl8411_card_power_on(struct rtsx_pcr *pcr, int card) +{ + int err; + + rtsx_pci_init_cmd(pcr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, + BPP_POWER_MASK, BPP_POWER_5_PERCENT_ON); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_CTL, + BPP_LDO_POWB, BPP_LDO_SUSPEND); + err = rtsx_pci_send_cmd(pcr, 100); + if (err < 0) + return err; + + /* To avoid too large in-rush current */ + udelay(150); + + err = rtsx_pci_write_register(pcr, CARD_PWR_CTL, + BPP_POWER_MASK, BPP_POWER_10_PERCENT_ON); + if (err < 0) + return err; + + udelay(150); + + err = rtsx_pci_write_register(pcr, CARD_PWR_CTL, + BPP_POWER_MASK, BPP_POWER_15_PERCENT_ON); + if (err < 0) + return err; + + udelay(150); + + err = rtsx_pci_write_register(pcr, CARD_PWR_CTL, + BPP_POWER_MASK, BPP_POWER_ON); + if (err < 0) + return err; + + return rtsx_pci_write_register(pcr, LDO_CTL, BPP_LDO_POWB, BPP_LDO_ON); +} + +static int rtl8411_card_power_off(struct rtsx_pcr *pcr, int card) +{ + int err; + + err = rtsx_pci_write_register(pcr, CARD_PWR_CTL, + BPP_POWER_MASK, BPP_POWER_OFF); + if (err < 0) + return err; + + return rtsx_pci_write_register(pcr, LDO_CTL, + BPP_LDO_POWB, BPP_LDO_SUSPEND); +} + +static unsigned int rtl8411_cd_deglitch(struct rtsx_pcr *pcr) +{ + unsigned int card_exist; + + card_exist = rtsx_pci_readl(pcr, RTSX_BIPR); + card_exist &= CARD_EXIST; + if (!card_exist) { + /* Enable card CD */ + rtsx_pci_write_register(pcr, CD_PAD_CTL, + CD_DISABLE_MASK, CD_ENABLE); + /* Enable card interrupt */ + rtsx_pci_write_register(pcr, EFUSE_CONTENT, 0xe0, 0x00); + return 0; + } + + if (hweight32(card_exist) > 1) { + rtsx_pci_write_register(pcr, CARD_PWR_CTL, + BPP_POWER_MASK, BPP_POWER_5_PERCENT_ON); + msleep(100); + + card_exist = rtsx_pci_readl(pcr, RTSX_BIPR); + if (card_exist & MS_EXIST) + card_exist = MS_EXIST; + else if (card_exist & SD_EXIST) + card_exist = SD_EXIST; + else + card_exist = 0; + + rtsx_pci_write_register(pcr, CARD_PWR_CTL, + BPP_POWER_MASK, BPP_POWER_OFF); + + dev_dbg(&(pcr->pci->dev), + "After CD deglitch, card_exist = 0x%x\n", + card_exist); + } + + if (card_exist & MS_EXIST) { + /* Disable SD interrupt */ + rtsx_pci_write_register(pcr, EFUSE_CONTENT, 0xe0, 0x40); + rtsx_pci_write_register(pcr, CD_PAD_CTL, + CD_DISABLE_MASK, MS_CD_EN_ONLY); + } else if (card_exist & SD_EXIST) { + /* Disable MS interrupt */ + rtsx_pci_write_register(pcr, EFUSE_CONTENT, 0xe0, 0x80); + rtsx_pci_write_register(pcr, CD_PAD_CTL, + CD_DISABLE_MASK, SD_CD_EN_ONLY); + } + + return card_exist; +} + +static const struct pcr_ops rtl8411_pcr_ops = { + .extra_init_hw = rtl8411_extra_init_hw, + .optimize_phy = NULL, + .turn_on_led = rtl8411_turn_on_led, + .turn_off_led = rtl8411_turn_off_led, + .enable_auto_blink = rtl8411_enable_auto_blink, + .disable_auto_blink = rtl8411_disable_auto_blink, + .card_power_on = rtl8411_card_power_on, + .card_power_off = rtl8411_card_power_off, + .cd_deglitch = rtl8411_cd_deglitch, +}; + +/* SD Pull Control Enable: + * SD_DAT[3:0] ==> pull up + * SD_CD ==> pull up + * SD_WP ==> pull up + * SD_CMD ==> pull up + * SD_CLK ==> pull down + */ +static const u32 rtl8411_sd_pull_ctl_enable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL1, 0xAA), + RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0xA9), + RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09), + RTSX_REG_PAIR(CARD_PULL_CTL5, 0x09), + RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04), + 0, +}; + +/* SD Pull Control Disable: + * SD_DAT[3:0] ==> pull down + * SD_CD ==> pull up + * SD_WP ==> pull down + * SD_CMD ==> pull down + * SD_CLK ==> pull down + */ +static const u32 rtl8411_sd_pull_ctl_disable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65), + RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0x95), + RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09), + RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05), + RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04), + 0, +}; + +/* MS Pull Control Enable: + * MS CD ==> pull up + * others ==> pull down + */ +static const u32 rtl8411_ms_pull_ctl_enable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65), + RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0x95), + RTSX_REG_PAIR(CARD_PULL_CTL4, 0x05), + RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05), + RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04), + 0, +}; + +/* MS Pull Control Disable: + * MS CD ==> pull up + * others ==> pull down + */ +static const u32 rtl8411_ms_pull_ctl_disable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65), + RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0x95), + RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09), + RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05), + RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04), + 0, +}; + +void rtl8411_init_params(struct rtsx_pcr *pcr) +{ + pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104; + pcr->num_slots = 2; + pcr->ops = &rtl8411_pcr_ops; + + pcr->ic_version = rtl8411_get_ic_version(pcr); + pcr->sd_pull_ctl_enable_tbl = rtl8411_sd_pull_ctl_enable_tbl; + pcr->sd_pull_ctl_disable_tbl = rtl8411_sd_pull_ctl_disable_tbl; + pcr->ms_pull_ctl_enable_tbl = rtl8411_ms_pull_ctl_enable_tbl; + pcr->ms_pull_ctl_disable_tbl = rtl8411_ms_pull_ctl_disable_tbl; +} diff --git a/drivers/mfd/rts5209.c b/drivers/mfd/rts5209.c new file mode 100644 index 0000000..283a4f1 --- /dev/null +++ b/drivers/mfd/rts5209.c @@ -0,0 +1,223 @@ +/* Driver for Realtek PCI-Express card reader + * + * Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + * + * Author: + * Wei WANG + * No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China + */ + +#include +#include +#include + +#include "rtsx_pcr.h" + +static u8 rts5209_get_ic_version(struct rtsx_pcr *pcr) +{ + u8 val; + + val = rtsx_pci_readb(pcr, 0x1C); + return val & 0x0F; +} + +static void rts5209_init_vendor_cfg(struct rtsx_pcr *pcr) +{ + u32 val; + + rtsx_pci_read_config_dword(pcr, 0x724, &val); + dev_dbg(&(pcr->pci->dev), "Cfg 0x724: 0x%x\n", val); + + if (!(val & 0x80)) { + if (val & 0x08) + pcr->ms_pmos = false; + else + pcr->ms_pmos = true; + } +} + +static int rts5209_extra_init_hw(struct rtsx_pcr *pcr) +{ + rtsx_pci_init_cmd(pcr); + + /* Turn off LED */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_GPIO, 0xFF, 0x03); + /* Configure GPIO as output */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_GPIO_DIR, 0xFF, 0x03); + + return rtsx_pci_send_cmd(pcr, 100); +} + +static int rts5209_optimize_phy(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_phy_register(pcr, 0x00, 0xB966); +} + +static int rts5209_turn_on_led(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, CARD_GPIO, 0x01, 0x00); +} + +static int rts5209_turn_off_led(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, CARD_GPIO, 0x01, 0x01); +} + +static int rts5209_enable_auto_blink(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, CARD_AUTO_BLINK, 0xFF, 0x0D); +} + +static int rts5209_disable_auto_blink(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, CARD_AUTO_BLINK, 0x08, 0x00); +} + +static int rts5209_card_power_on(struct rtsx_pcr *pcr, int card) +{ + int err; + u8 pwr_mask, partial_pwr_on, pwr_on; + + pwr_mask = SD_POWER_MASK; + partial_pwr_on = SD_PARTIAL_POWER_ON; + pwr_on = SD_POWER_ON; + + if (pcr->ms_pmos && (card == RTSX_MS_CARD)) { + pwr_mask = MS_POWER_MASK; + partial_pwr_on = MS_PARTIAL_POWER_ON; + pwr_on = MS_POWER_ON; + } + + rtsx_pci_init_cmd(pcr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, + pwr_mask, partial_pwr_on); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, + LDO3318_PWR_MASK, 0x04); + err = rtsx_pci_send_cmd(pcr, 100); + if (err < 0) + return err; + + /* To avoid too large in-rush current */ + udelay(150); + + rtsx_pci_init_cmd(pcr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, pwr_mask, pwr_on); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, + LDO3318_PWR_MASK, 0x00); + err = rtsx_pci_send_cmd(pcr, 100); + if (err < 0) + return err; + + return 0; +} + +static int rts5209_card_power_off(struct rtsx_pcr *pcr, int card) +{ + u8 pwr_mask, pwr_off; + + pwr_mask = SD_POWER_MASK; + pwr_off = SD_POWER_OFF; + + if (pcr->ms_pmos && (card == RTSX_MS_CARD)) { + pwr_mask = MS_POWER_MASK; + pwr_off = MS_POWER_OFF; + } + + rtsx_pci_init_cmd(pcr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, + pwr_mask | PMOS_STRG_MASK, pwr_off | PMOS_STRG_400mA); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, + LDO3318_PWR_MASK, 0X06); + return rtsx_pci_send_cmd(pcr, 100); +} + +static const struct pcr_ops rts5209_pcr_ops = { + .extra_init_hw = rts5209_extra_init_hw, + .optimize_phy = rts5209_optimize_phy, + .turn_on_led = rts5209_turn_on_led, + .turn_off_led = rts5209_turn_off_led, + .enable_auto_blink = rts5209_enable_auto_blink, + .disable_auto_blink = rts5209_disable_auto_blink, + .card_power_on = rts5209_card_power_on, + .card_power_off = rts5209_card_power_off, + .cd_deglitch = NULL, +}; + +/* SD Pull Control Enable: + * SD_DAT[3:0] ==> pull up + * SD_CD ==> pull up + * SD_WP ==> pull up + * SD_CMD ==> pull up + * SD_CLK ==> pull down + */ +static const u32 rts5209_sd_pull_ctl_enable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL1, 0xAA), + RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9), + 0, +}; + +/* SD Pull Control Disable: + * SD_DAT[3:0] ==> pull down + * SD_CD ==> pull up + * SD_WP ==> pull down + * SD_CMD ==> pull down + * SD_CLK ==> pull down + */ +static const u32 rts5209_sd_pull_ctl_disable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL1, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5), + 0, +}; + +/* MS Pull Control Enable: + * MS CD ==> pull up + * others ==> pull down + */ +static const u32 rts5209_ms_pull_ctl_enable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15), + 0, +}; + +/* MS Pull Control Disable: + * MS CD ==> pull up + * others ==> pull down + */ +static const u32 rts5209_ms_pull_ctl_disable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15), + 0, +}; + +void rts5209_init_params(struct rtsx_pcr *pcr) +{ + pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | + EXTRA_CAPS_SD_SDR104 | EXTRA_CAPS_MMC_8BIT; + pcr->num_slots = 2; + pcr->ops = &rts5209_pcr_ops; + + rts5209_init_vendor_cfg(pcr); + + pcr->ic_version = rts5209_get_ic_version(pcr); + pcr->sd_pull_ctl_enable_tbl = rts5209_sd_pull_ctl_enable_tbl; + pcr->sd_pull_ctl_disable_tbl = rts5209_sd_pull_ctl_disable_tbl; + pcr->ms_pull_ctl_enable_tbl = rts5209_ms_pull_ctl_enable_tbl; + pcr->ms_pull_ctl_disable_tbl = rts5209_ms_pull_ctl_disable_tbl; +} diff --git a/drivers/mfd/rts5229.c b/drivers/mfd/rts5229.c new file mode 100644 index 0000000..b9dbab2 --- /dev/null +++ b/drivers/mfd/rts5229.c @@ -0,0 +1,205 @@ +/* Driver for Realtek PCI-Express card reader + * + * Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + * + * Author: + * Wei WANG + * No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China + */ + +#include +#include +#include + +#include "rtsx_pcr.h" + +static u8 rts5229_get_ic_version(struct rtsx_pcr *pcr) +{ + u8 val; + + rtsx_pci_read_register(pcr, DUMMY_REG_RESET_0, &val); + return val & 0x0F; +} + +static int rts5229_extra_init_hw(struct rtsx_pcr *pcr) +{ + rtsx_pci_init_cmd(pcr); + + /* Configure GPIO as output */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, GPIO_CTL, 0x02, 0x02); + /* Switch LDO3318 source from DV33 to card_3v3 */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x00); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x01); + /* LED shine disabled, set initial shine cycle period */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OLT_LED_CTL, 0x0F, 0x02); + + return rtsx_pci_send_cmd(pcr, 100); +} + +static int rts5229_optimize_phy(struct rtsx_pcr *pcr) +{ + /* Optimize RX sensitivity */ + return rtsx_pci_write_phy_register(pcr, 0x00, 0xBA42); +} + +static int rts5229_turn_on_led(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x02); +} + +static int rts5229_turn_off_led(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00); +} + +static int rts5229_enable_auto_blink(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x08); +} + +static int rts5229_disable_auto_blink(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x00); +} + +static int rts5229_card_power_on(struct rtsx_pcr *pcr, int card) +{ + int err; + + rtsx_pci_init_cmd(pcr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, + SD_POWER_MASK, SD_PARTIAL_POWER_ON); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, + LDO3318_PWR_MASK, 0x02); + err = rtsx_pci_send_cmd(pcr, 100); + if (err < 0) + return err; + + /* To avoid too large in-rush current */ + udelay(150); + + rtsx_pci_init_cmd(pcr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, + SD_POWER_MASK, SD_POWER_ON); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, + LDO3318_PWR_MASK, 0x06); + err = rtsx_pci_send_cmd(pcr, 100); + if (err < 0) + return err; + + return 0; +} + +static int rts5229_card_power_off(struct rtsx_pcr *pcr, int card) +{ + rtsx_pci_init_cmd(pcr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, + SD_POWER_MASK | PMOS_STRG_MASK, + SD_POWER_OFF | PMOS_STRG_400mA); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, + LDO3318_PWR_MASK, 0X00); + return rtsx_pci_send_cmd(pcr, 100); +} + +static const struct pcr_ops rts5229_pcr_ops = { + .extra_init_hw = rts5229_extra_init_hw, + .optimize_phy = rts5229_optimize_phy, + .turn_on_led = rts5229_turn_on_led, + .turn_off_led = rts5229_turn_off_led, + .enable_auto_blink = rts5229_enable_auto_blink, + .disable_auto_blink = rts5229_disable_auto_blink, + .card_power_on = rts5229_card_power_on, + .card_power_off = rts5229_card_power_off, + .cd_deglitch = NULL, +}; + +/* SD Pull Control Enable: + * SD_DAT[3:0] ==> pull up + * SD_CD ==> pull up + * SD_WP ==> pull up + * SD_CMD ==> pull up + * SD_CLK ==> pull down + */ +static const u32 rts5229_sd_pull_ctl_enable_tbl1[] = { + RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9), + 0, +}; + +/* For RTS5229 version C */ +static const u32 rts5229_sd_pull_ctl_enable_tbl2[] = { + RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD9), + 0, +}; + +/* SD Pull Control Disable: + * SD_DAT[3:0] ==> pull down + * SD_CD ==> pull up + * SD_WP ==> pull down + * SD_CMD ==> pull down + * SD_CLK ==> pull down + */ +static const u32 rts5229_sd_pull_ctl_disable_tbl1[] = { + RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5), + 0, +}; + +/* For RTS5229 version C */ +static const u32 rts5229_sd_pull_ctl_disable_tbl2[] = { + RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE5), + 0, +}; + +/* MS Pull Control Enable: + * MS CD ==> pull up + * others ==> pull down + */ +static const u32 rts5229_ms_pull_ctl_enable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15), + 0, +}; + +/* MS Pull Control Disable: + * MS CD ==> pull up + * others ==> pull down + */ +static const u32 rts5229_ms_pull_ctl_disable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15), + 0, +}; + +void rts5229_init_params(struct rtsx_pcr *pcr) +{ + pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104; + pcr->num_slots = 2; + pcr->ops = &rts5229_pcr_ops; + + pcr->ic_version = rts5229_get_ic_version(pcr); + if (pcr->ic_version == IC_VER_C) { + pcr->sd_pull_ctl_enable_tbl = rts5229_sd_pull_ctl_enable_tbl2; + pcr->sd_pull_ctl_disable_tbl = rts5229_sd_pull_ctl_disable_tbl2; + } else { + pcr->sd_pull_ctl_enable_tbl = rts5229_sd_pull_ctl_enable_tbl1; + pcr->sd_pull_ctl_disable_tbl = rts5229_sd_pull_ctl_disable_tbl1; + } + pcr->ms_pull_ctl_enable_tbl = rts5229_ms_pull_ctl_enable_tbl; + pcr->ms_pull_ctl_disable_tbl = rts5229_ms_pull_ctl_disable_tbl; +} diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c new file mode 100644 index 0000000..56d4377 --- /dev/null +++ b/drivers/mfd/rtsx_pcr.c @@ -0,0 +1,1251 @@ +/* Driver for Realtek PCI-Express card reader + * + * Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + * + * Author: + * Wei WANG + * No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "rtsx_pcr.h" + +static bool msi_en = true; +module_param(msi_en, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(msi_en, "Enable MSI"); + +static DEFINE_IDR(rtsx_pci_idr); +static DEFINE_SPINLOCK(rtsx_pci_lock); + +static struct mfd_cell rtsx_pcr_cells[] = { + [RTSX_SD_CARD] = { + .name = DRV_NAME_RTSX_PCI_SDMMC, + }, + [RTSX_MS_CARD] = { + .name = DRV_NAME_RTSX_PCI_MS, + }, +}; + +static DEFINE_PCI_DEVICE_TABLE(rtsx_pci_ids) = { + { PCI_DEVICE(0x10EC, 0x5209), PCI_CLASS_OTHERS << 16, 0xFF0000 }, + { PCI_DEVICE(0x10EC, 0x5229), PCI_CLASS_OTHERS << 16, 0xFF0000 }, + { PCI_DEVICE(0x10EC, 0x5289), PCI_CLASS_OTHERS << 16, 0xFF0000 }, + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, rtsx_pci_ids); + +void rtsx_pci_start_run(struct rtsx_pcr *pcr) +{ + /* If pci device removed, don't queue idle work any more */ + if (pcr->remove_pci) + return; + + if (pcr->state != PDEV_STAT_RUN) { + pcr->state = PDEV_STAT_RUN; + if (pcr->ops->enable_auto_blink) + pcr->ops->enable_auto_blink(pcr); + } + + mod_delayed_work(system_wq, &pcr->idle_work, msecs_to_jiffies(200)); +} +EXPORT_SYMBOL_GPL(rtsx_pci_start_run); + +int rtsx_pci_write_register(struct rtsx_pcr *pcr, u16 addr, u8 mask, u8 data) +{ + int i; + u32 val = HAIMR_WRITE_START; + + val |= (u32)(addr & 0x3FFF) << 16; + val |= (u32)mask << 8; + val |= (u32)data; + + rtsx_pci_writel(pcr, RTSX_HAIMR, val); + + for (i = 0; i < MAX_RW_REG_CNT; i++) { + val = rtsx_pci_readl(pcr, RTSX_HAIMR); + if ((val & HAIMR_TRANS_END) == 0) { + if (data != (u8)val) + return -EIO; + return 0; + } + } + + return -ETIMEDOUT; +} +EXPORT_SYMBOL_GPL(rtsx_pci_write_register); + +int rtsx_pci_read_register(struct rtsx_pcr *pcr, u16 addr, u8 *data) +{ + u32 val = HAIMR_READ_START; + int i; + + val |= (u32)(addr & 0x3FFF) << 16; + rtsx_pci_writel(pcr, RTSX_HAIMR, val); + + for (i = 0; i < MAX_RW_REG_CNT; i++) { + val = rtsx_pci_readl(pcr, RTSX_HAIMR); + if ((val & HAIMR_TRANS_END) == 0) + break; + } + + if (i >= MAX_RW_REG_CNT) + return -ETIMEDOUT; + + if (data) + *data = (u8)(val & 0xFF); + + return 0; +} +EXPORT_SYMBOL_GPL(rtsx_pci_read_register); + +int rtsx_pci_write_phy_register(struct rtsx_pcr *pcr, u8 addr, u16 val) +{ + int err, i, finished = 0; + u8 tmp; + + rtsx_pci_init_cmd(pcr); + + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PHYDATA0, 0xFF, (u8)val); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PHYDATA1, 0xFF, (u8)(val >> 8)); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PHYADDR, 0xFF, addr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PHYRWCTL, 0xFF, 0x81); + + err = rtsx_pci_send_cmd(pcr, 100); + if (err < 0) + return err; + + for (i = 0; i < 100000; i++) { + err = rtsx_pci_read_register(pcr, PHYRWCTL, &tmp); + if (err < 0) + return err; + + if (!(tmp & 0x80)) { + finished = 1; + break; + } + } + + if (!finished) + return -ETIMEDOUT; + + return 0; +} +EXPORT_SYMBOL_GPL(rtsx_pci_write_phy_register); + +int rtsx_pci_read_phy_register(struct rtsx_pcr *pcr, u8 addr, u16 *val) +{ + int err, i, finished = 0; + u16 data; + u8 *ptr, tmp; + + rtsx_pci_init_cmd(pcr); + + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PHYADDR, 0xFF, addr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PHYRWCTL, 0xFF, 0x80); + + err = rtsx_pci_send_cmd(pcr, 100); + if (err < 0) + return err; + + for (i = 0; i < 100000; i++) { + err = rtsx_pci_read_register(pcr, PHYRWCTL, &tmp); + if (err < 0) + return err; + + if (!(tmp & 0x80)) { + finished = 1; + break; + } + } + + if (!finished) + return -ETIMEDOUT; + + rtsx_pci_init_cmd(pcr); + + rtsx_pci_add_cmd(pcr, READ_REG_CMD, PHYDATA0, 0, 0); + rtsx_pci_add_cmd(pcr, READ_REG_CMD, PHYDATA1, 0, 0); + + err = rtsx_pci_send_cmd(pcr, 100); + if (err < 0) + return err; + + ptr = rtsx_pci_get_cmd_data(pcr); + data = ((u16)ptr[1] << 8) | ptr[0]; + + if (val) + *val = data; + + return 0; +} +EXPORT_SYMBOL_GPL(rtsx_pci_read_phy_register); + +void rtsx_pci_stop_cmd(struct rtsx_pcr *pcr) +{ + rtsx_pci_writel(pcr, RTSX_HCBCTLR, STOP_CMD); + rtsx_pci_writel(pcr, RTSX_HDBCTLR, STOP_DMA); + + rtsx_pci_write_register(pcr, DMACTL, 0x80, 0x80); + rtsx_pci_write_register(pcr, RBCTL, 0x80, 0x80); +} +EXPORT_SYMBOL_GPL(rtsx_pci_stop_cmd); + +void rtsx_pci_add_cmd(struct rtsx_pcr *pcr, + u8 cmd_type, u16 reg_addr, u8 mask, u8 data) +{ + unsigned long flags; + u32 val = 0; + u32 *ptr = (u32 *)(pcr->host_cmds_ptr); + + val |= (u32)(cmd_type & 0x03) << 30; + val |= (u32)(reg_addr & 0x3FFF) << 16; + val |= (u32)mask << 8; + val |= (u32)data; + + spin_lock_irqsave(&pcr->lock, flags); + ptr += pcr->ci; + if (pcr->ci < (HOST_CMDS_BUF_LEN / 4)) { + put_unaligned_le32(val, ptr); + ptr++; + pcr->ci++; + } + spin_unlock_irqrestore(&pcr->lock, flags); +} +EXPORT_SYMBOL_GPL(rtsx_pci_add_cmd); + +void rtsx_pci_send_cmd_no_wait(struct rtsx_pcr *pcr) +{ + u32 val = 1 << 31; + + rtsx_pci_writel(pcr, RTSX_HCBAR, pcr->host_cmds_addr); + + val |= (u32)(pcr->ci * 4) & 0x00FFFFFF; + /* Hardware Auto Response */ + val |= 0x40000000; + rtsx_pci_writel(pcr, RTSX_HCBCTLR, val); +} +EXPORT_SYMBOL_GPL(rtsx_pci_send_cmd_no_wait); + +int rtsx_pci_send_cmd(struct rtsx_pcr *pcr, int timeout) +{ + struct completion trans_done; + u32 val = 1 << 31; + long timeleft; + unsigned long flags; + int err = 0; + + spin_lock_irqsave(&pcr->lock, flags); + + /* set up data structures for the wakeup system */ + pcr->done = &trans_done; + pcr->trans_result = TRANS_NOT_READY; + init_completion(&trans_done); + + rtsx_pci_writel(pcr, RTSX_HCBAR, pcr->host_cmds_addr); + + val |= (u32)(pcr->ci * 4) & 0x00FFFFFF; + /* Hardware Auto Response */ + val |= 0x40000000; + rtsx_pci_writel(pcr, RTSX_HCBCTLR, val); + + spin_unlock_irqrestore(&pcr->lock, flags); + + /* Wait for TRANS_OK_INT */ + timeleft = wait_for_completion_interruptible_timeout( + &trans_done, msecs_to_jiffies(timeout)); + if (timeleft <= 0) { + dev_dbg(&(pcr->pci->dev), "Timeout (%s %d)\n", + __func__, __LINE__); + err = -ETIMEDOUT; + goto finish_send_cmd; + } + + spin_lock_irqsave(&pcr->lock, flags); + if (pcr->trans_result == TRANS_RESULT_FAIL) + err = -EINVAL; + else if (pcr->trans_result == TRANS_RESULT_OK) + err = 0; + else if (pcr->trans_result == TRANS_NO_DEVICE) + err = -ENODEV; + spin_unlock_irqrestore(&pcr->lock, flags); + +finish_send_cmd: + spin_lock_irqsave(&pcr->lock, flags); + pcr->done = NULL; + spin_unlock_irqrestore(&pcr->lock, flags); + + if ((err < 0) && (err != -ENODEV)) + rtsx_pci_stop_cmd(pcr); + + if (pcr->finish_me) + complete(pcr->finish_me); + + return err; +} +EXPORT_SYMBOL_GPL(rtsx_pci_send_cmd); + +static void rtsx_pci_add_sg_tbl(struct rtsx_pcr *pcr, + dma_addr_t addr, unsigned int len, int end) +{ + u64 *ptr = (u64 *)(pcr->host_sg_tbl_ptr) + pcr->sgi; + u64 val; + u8 option = SG_VALID | SG_TRANS_DATA; + + dev_dbg(&(pcr->pci->dev), "DMA addr: 0x%x, Len: 0x%x\n", + (unsigned int)addr, len); + + if (end) + option |= SG_END; + val = ((u64)addr << 32) | ((u64)len << 12) | option; + + put_unaligned_le64(val, ptr); + ptr++; + pcr->sgi++; +} + +int rtsx_pci_transfer_data(struct rtsx_pcr *pcr, struct scatterlist *sglist, + int num_sg, bool read, int timeout) +{ + struct completion trans_done; + u8 dir; + int err = 0, i, count; + long timeleft; + unsigned long flags; + struct scatterlist *sg; + enum dma_data_direction dma_dir; + u32 val; + dma_addr_t addr; + unsigned int len; + + dev_dbg(&(pcr->pci->dev), "--> %s: num_sg = %d\n", __func__, num_sg); + + /* don't transfer data during abort processing */ + if (pcr->remove_pci) + return -EINVAL; + + if ((sglist == NULL) || (num_sg <= 0)) + return -EINVAL; + + if (read) { + dir = DEVICE_TO_HOST; + dma_dir = DMA_FROM_DEVICE; + } else { + dir = HOST_TO_DEVICE; + dma_dir = DMA_TO_DEVICE; + } + + count = dma_map_sg(&(pcr->pci->dev), sglist, num_sg, dma_dir); + if (count < 1) { + dev_err(&(pcr->pci->dev), "scatterlist map failed\n"); + return -EINVAL; + } + dev_dbg(&(pcr->pci->dev), "DMA mapping count: %d\n", count); + + val = ((u32)(dir & 0x01) << 29) | TRIG_DMA | ADMA_MODE; + pcr->sgi = 0; + for_each_sg(sglist, sg, count, i) { + addr = sg_dma_address(sg); + len = sg_dma_len(sg); + rtsx_pci_add_sg_tbl(pcr, addr, len, i == count - 1); + } + + spin_lock_irqsave(&pcr->lock, flags); + + pcr->done = &trans_done; + pcr->trans_result = TRANS_NOT_READY; + init_completion(&trans_done); + rtsx_pci_writel(pcr, RTSX_HDBAR, pcr->host_sg_tbl_addr); + rtsx_pci_writel(pcr, RTSX_HDBCTLR, val); + + spin_unlock_irqrestore(&pcr->lock, flags); + + timeleft = wait_for_completion_interruptible_timeout( + &trans_done, msecs_to_jiffies(timeout)); + if (timeleft <= 0) { + dev_dbg(&(pcr->pci->dev), "Timeout (%s %d)\n", + __func__, __LINE__); + err = -ETIMEDOUT; + goto out; + } + + spin_lock_irqsave(&pcr->lock, flags); + + if (pcr->trans_result == TRANS_RESULT_FAIL) + err = -EINVAL; + else if (pcr->trans_result == TRANS_NO_DEVICE) + err = -ENODEV; + + spin_unlock_irqrestore(&pcr->lock, flags); + +out: + spin_lock_irqsave(&pcr->lock, flags); + pcr->done = NULL; + spin_unlock_irqrestore(&pcr->lock, flags); + + dma_unmap_sg(&(pcr->pci->dev), sglist, num_sg, dma_dir); + + if ((err < 0) && (err != -ENODEV)) + rtsx_pci_stop_cmd(pcr); + + if (pcr->finish_me) + complete(pcr->finish_me); + + return err; +} +EXPORT_SYMBOL_GPL(rtsx_pci_transfer_data); + +int rtsx_pci_read_ppbuf(struct rtsx_pcr *pcr, u8 *buf, int buf_len) +{ + int err; + int i, j; + u16 reg; + u8 *ptr; + + if (buf_len > 512) + buf_len = 512; + + ptr = buf; + reg = PPBUF_BASE2; + for (i = 0; i < buf_len / 256; i++) { + rtsx_pci_init_cmd(pcr); + + for (j = 0; j < 256; j++) + rtsx_pci_add_cmd(pcr, READ_REG_CMD, reg++, 0, 0); + + err = rtsx_pci_send_cmd(pcr, 250); + if (err < 0) + return err; + + memcpy(ptr, rtsx_pci_get_cmd_data(pcr), 256); + ptr += 256; + } + + if (buf_len % 256) { + rtsx_pci_init_cmd(pcr); + + for (j = 0; j < buf_len % 256; j++) + rtsx_pci_add_cmd(pcr, READ_REG_CMD, reg++, 0, 0); + + err = rtsx_pci_send_cmd(pcr, 250); + if (err < 0) + return err; + } + + memcpy(ptr, rtsx_pci_get_cmd_data(pcr), buf_len % 256); + + return 0; +} +EXPORT_SYMBOL_GPL(rtsx_pci_read_ppbuf); + +int rtsx_pci_write_ppbuf(struct rtsx_pcr *pcr, u8 *buf, int buf_len) +{ + int err; + int i, j; + u16 reg; + u8 *ptr; + + if (buf_len > 512) + buf_len = 512; + + ptr = buf; + reg = PPBUF_BASE2; + for (i = 0; i < buf_len / 256; i++) { + rtsx_pci_init_cmd(pcr); + + for (j = 0; j < 256; j++) { + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, + reg++, 0xFF, *ptr); + ptr++; + } + + err = rtsx_pci_send_cmd(pcr, 250); + if (err < 0) + return err; + } + + if (buf_len % 256) { + rtsx_pci_init_cmd(pcr); + + for (j = 0; j < buf_len % 256; j++) { + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, + reg++, 0xFF, *ptr); + ptr++; + } + + err = rtsx_pci_send_cmd(pcr, 250); + if (err < 0) + return err; + } + + return 0; +} +EXPORT_SYMBOL_GPL(rtsx_pci_write_ppbuf); + +static int rtsx_pci_set_pull_ctl(struct rtsx_pcr *pcr, const u32 *tbl) +{ + int err; + + rtsx_pci_init_cmd(pcr); + + while (*tbl & 0xFFFF0000) { + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, + (u16)(*tbl >> 16), 0xFF, (u8)(*tbl)); + tbl++; + } + + err = rtsx_pci_send_cmd(pcr, 100); + if (err < 0) + return err; + + return 0; +} + +int rtsx_pci_card_pull_ctl_enable(struct rtsx_pcr *pcr, int card) +{ + const u32 *tbl; + + if (card == RTSX_SD_CARD) + tbl = pcr->sd_pull_ctl_enable_tbl; + else if (card == RTSX_MS_CARD) + tbl = pcr->ms_pull_ctl_enable_tbl; + else + return -EINVAL; + + return rtsx_pci_set_pull_ctl(pcr, tbl); +} +EXPORT_SYMBOL_GPL(rtsx_pci_card_pull_ctl_enable); + +int rtsx_pci_card_pull_ctl_disable(struct rtsx_pcr *pcr, int card) +{ + const u32 *tbl; + + if (card == RTSX_SD_CARD) + tbl = pcr->sd_pull_ctl_disable_tbl; + else if (card == RTSX_MS_CARD) + tbl = pcr->ms_pull_ctl_disable_tbl; + else + return -EINVAL; + + + return rtsx_pci_set_pull_ctl(pcr, tbl); +} +EXPORT_SYMBOL_GPL(rtsx_pci_card_pull_ctl_disable); + +static void rtsx_pci_enable_bus_int(struct rtsx_pcr *pcr) +{ + pcr->bier = TRANS_OK_INT_EN | TRANS_FAIL_INT_EN | SD_INT_EN; + + if (pcr->num_slots > 1) + pcr->bier |= MS_INT_EN; + + /* Enable Bus Interrupt */ + rtsx_pci_writel(pcr, RTSX_BIER, pcr->bier); + + dev_dbg(&(pcr->pci->dev), "RTSX_BIER: 0x%08x\n", pcr->bier); +} + +static inline u8 double_ssc_depth(u8 depth) +{ + return ((depth > 1) ? (depth - 1) : depth); +} + +static u8 revise_ssc_depth(u8 ssc_depth, u8 div) +{ + if (div > CLK_DIV_1) { + if (ssc_depth > (div - 1)) + ssc_depth -= (div - 1); + else + ssc_depth = SSC_DEPTH_4M; + } + + return ssc_depth; +} + +int rtsx_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock, + u8 ssc_depth, bool initial_mode, bool double_clk, bool vpclk) +{ + int err, clk; + u8 N, min_N, max_N, clk_divider; + u8 mcu_cnt, div, max_div; + u8 depth[] = { + [RTSX_SSC_DEPTH_4M] = SSC_DEPTH_4M, + [RTSX_SSC_DEPTH_2M] = SSC_DEPTH_2M, + [RTSX_SSC_DEPTH_1M] = SSC_DEPTH_1M, + [RTSX_SSC_DEPTH_500K] = SSC_DEPTH_500K, + [RTSX_SSC_DEPTH_250K] = SSC_DEPTH_250K, + }; + + if (initial_mode) { + /* We use 250k(around) here, in initial stage */ + clk_divider = SD_CLK_DIVIDE_128; + card_clock = 30000000; + } else { + clk_divider = SD_CLK_DIVIDE_0; + } + err = rtsx_pci_write_register(pcr, SD_CFG1, + SD_CLK_DIVIDE_MASK, clk_divider); + if (err < 0) + return err; + + card_clock /= 1000000; + dev_dbg(&(pcr->pci->dev), "Switch card clock to %dMHz\n", card_clock); + + min_N = 80; + max_N = 208; + max_div = CLK_DIV_8; + + clk = card_clock; + if (!initial_mode && double_clk) + clk = card_clock * 2; + dev_dbg(&(pcr->pci->dev), + "Internal SSC clock: %dMHz (cur_clock = %d)\n", + clk, pcr->cur_clock); + + if (clk == pcr->cur_clock) + return 0; + + N = (u8)(clk - 2); + if ((clk <= 2) || (N > max_N)) + return -EINVAL; + + mcu_cnt = (u8)(125/clk + 3); + if (mcu_cnt > 15) + mcu_cnt = 15; + + /* Make sure that the SSC clock div_n is equal or greater than min_N */ + div = CLK_DIV_1; + while ((N < min_N) && (div < max_div)) { + N = (N + 2) * 2 - 2; + div++; + } + dev_dbg(&(pcr->pci->dev), "N = %d, div = %d\n", N, div); + + ssc_depth = depth[ssc_depth]; + if (double_clk) + ssc_depth = double_ssc_depth(ssc_depth); + + ssc_depth = revise_ssc_depth(ssc_depth, div); + dev_dbg(&(pcr->pci->dev), "ssc_depth = %d\n", ssc_depth); + + rtsx_pci_init_cmd(pcr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CLK_CTL, + CLK_LOW_FREQ, CLK_LOW_FREQ); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CLK_DIV, + 0xFF, (div << 4) | mcu_cnt); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL1, SSC_RSTB, 0); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL2, + SSC_DEPTH_MASK, ssc_depth); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_DIV_N_0, 0xFF, N); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL1, SSC_RSTB, SSC_RSTB); + if (vpclk) { + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_VPCLK0_CTL, + PHASE_NOT_RESET, 0); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_VPCLK0_CTL, + PHASE_NOT_RESET, PHASE_NOT_RESET); + } + + err = rtsx_pci_send_cmd(pcr, 2000); + if (err < 0) + return err; + + /* Wait SSC clock stable */ + udelay(10); + err = rtsx_pci_write_register(pcr, CLK_CTL, CLK_LOW_FREQ, 0); + if (err < 0) + return err; + + pcr->cur_clock = clk; + return 0; +} +EXPORT_SYMBOL_GPL(rtsx_pci_switch_clock); + +int rtsx_pci_card_power_on(struct rtsx_pcr *pcr, int card) +{ + if (pcr->ops->card_power_on) + return pcr->ops->card_power_on(pcr, card); + + return 0; +} +EXPORT_SYMBOL_GPL(rtsx_pci_card_power_on); + +int rtsx_pci_card_power_off(struct rtsx_pcr *pcr, int card) +{ + if (pcr->ops->card_power_off) + return pcr->ops->card_power_off(pcr, card); + + return 0; +} +EXPORT_SYMBOL_GPL(rtsx_pci_card_power_off); + +unsigned int rtsx_pci_card_exist(struct rtsx_pcr *pcr) +{ + unsigned int val; + + val = rtsx_pci_readl(pcr, RTSX_BIPR); + if (pcr->ops->cd_deglitch) + val = pcr->ops->cd_deglitch(pcr); + + return val; +} +EXPORT_SYMBOL_GPL(rtsx_pci_card_exist); + +void rtsx_pci_complete_unfinished_transfer(struct rtsx_pcr *pcr) +{ + struct completion finish; + + pcr->finish_me = &finish; + init_completion(&finish); + + if (pcr->done) + complete(pcr->done); + + if (!pcr->remove_pci) + rtsx_pci_stop_cmd(pcr); + + wait_for_completion_interruptible_timeout(&finish, + msecs_to_jiffies(2)); + pcr->finish_me = NULL; +} +EXPORT_SYMBOL_GPL(rtsx_pci_complete_unfinished_transfer); + +static void rtsx_pci_card_detect(struct work_struct *work) +{ + struct delayed_work *dwork; + struct rtsx_pcr *pcr; + unsigned long flags; + unsigned int card_detect = 0; + u32 irq_status; + + dwork = to_delayed_work(work); + pcr = container_of(dwork, struct rtsx_pcr, carddet_work); + + dev_dbg(&(pcr->pci->dev), "--> %s\n", __func__); + + spin_lock_irqsave(&pcr->lock, flags); + + irq_status = rtsx_pci_readl(pcr, RTSX_BIPR); + dev_dbg(&(pcr->pci->dev), "irq_status: 0x%08x\n", irq_status); + + if (pcr->card_inserted || pcr->card_removed) { + dev_dbg(&(pcr->pci->dev), + "card_inserted: 0x%x, card_removed: 0x%x\n", + pcr->card_inserted, pcr->card_removed); + + if (pcr->ops->cd_deglitch) + pcr->card_inserted = pcr->ops->cd_deglitch(pcr); + + card_detect = pcr->card_inserted | pcr->card_removed; + pcr->card_inserted = 0; + pcr->card_removed = 0; + } + + spin_unlock_irqrestore(&pcr->lock, flags); + + if (card_detect & SD_EXIST) + pcr->slots[RTSX_SD_CARD].card_event( + pcr->slots[RTSX_SD_CARD].p_dev); + if (card_detect & MS_EXIST) + pcr->slots[RTSX_MS_CARD].card_event( + pcr->slots[RTSX_MS_CARD].p_dev); +} + +static irqreturn_t rtsx_pci_isr(int irq, void *dev_id) +{ + struct rtsx_pcr *pcr = dev_id; + u32 int_reg; + + if (!pcr) + return IRQ_NONE; + + spin_lock(&pcr->lock); + + int_reg = rtsx_pci_readl(pcr, RTSX_BIPR); + /* Clear interrupt flag */ + rtsx_pci_writel(pcr, RTSX_BIPR, int_reg); + if ((int_reg & pcr->bier) == 0) { + spin_unlock(&pcr->lock); + return IRQ_NONE; + } + if (int_reg == 0xFFFFFFFF) { + spin_unlock(&pcr->lock); + return IRQ_HANDLED; + } + + int_reg &= (pcr->bier | 0x7FFFFF); + + if (int_reg & SD_INT) { + if (int_reg & SD_EXIST) { + pcr->card_inserted |= SD_EXIST; + } else { + pcr->card_removed |= SD_EXIST; + pcr->card_inserted &= ~SD_EXIST; + } + } + + if (int_reg & MS_INT) { + if (int_reg & MS_EXIST) { + pcr->card_inserted |= MS_EXIST; + } else { + pcr->card_removed |= MS_EXIST; + pcr->card_inserted &= ~MS_EXIST; + } + } + + if (pcr->card_inserted || pcr->card_removed) + schedule_delayed_work(&pcr->carddet_work, + msecs_to_jiffies(200)); + + if (int_reg & (NEED_COMPLETE_INT | DELINK_INT)) { + if (int_reg & (TRANS_FAIL_INT | DELINK_INT)) { + pcr->trans_result = TRANS_RESULT_FAIL; + if (pcr->done) + complete(pcr->done); + } else if (int_reg & TRANS_OK_INT) { + pcr->trans_result = TRANS_RESULT_OK; + if (pcr->done) + complete(pcr->done); + } + } + + spin_unlock(&pcr->lock); + return IRQ_HANDLED; +} + +static int rtsx_pci_acquire_irq(struct rtsx_pcr *pcr) +{ + dev_info(&(pcr->pci->dev), "%s: pcr->msi_en = %d, pci->irq = %d\n", + __func__, pcr->msi_en, pcr->pci->irq); + + if (request_irq(pcr->pci->irq, rtsx_pci_isr, + pcr->msi_en ? 0 : IRQF_SHARED, + DRV_NAME_RTSX_PCI, pcr)) { + dev_err(&(pcr->pci->dev), + "rtsx_sdmmc: unable to grab IRQ %d, disabling device\n", + pcr->pci->irq); + return -1; + } + + pcr->irq = pcr->pci->irq; + pci_intx(pcr->pci, !pcr->msi_en); + + return 0; +} + +static void rtsx_pci_idle_work(struct work_struct *work) +{ + struct delayed_work *dwork = to_delayed_work(work); + struct rtsx_pcr *pcr = container_of(dwork, struct rtsx_pcr, idle_work); + + dev_dbg(&(pcr->pci->dev), "--> %s\n", __func__); + + mutex_lock(&pcr->pcr_mutex); + + pcr->state = PDEV_STAT_IDLE; + + if (pcr->ops->disable_auto_blink) + pcr->ops->disable_auto_blink(pcr); + if (pcr->ops->turn_off_led) + pcr->ops->turn_off_led(pcr); + + mutex_unlock(&pcr->pcr_mutex); +} + +static int rtsx_pci_init_hw(struct rtsx_pcr *pcr) +{ + int err; + + rtsx_pci_writel(pcr, RTSX_HCBAR, pcr->host_cmds_addr); + + rtsx_pci_enable_bus_int(pcr); + + /* Power on SSC */ + err = rtsx_pci_write_register(pcr, FPDCTL, SSC_POWER_DOWN, 0); + if (err < 0) + return err; + + /* Wait SSC power stable */ + udelay(200); + + if (pcr->ops->optimize_phy) { + err = pcr->ops->optimize_phy(pcr); + if (err < 0) + return err; + } + + rtsx_pci_init_cmd(pcr); + + /* Set mcu_cnt to 7 to ensure data can be sampled properly */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CLK_DIV, 0x07, 0x07); + + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, HOST_SLEEP_STATE, 0x03, 0x00); + /* Disable card clock */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_CLK_EN, 0x1E, 0); + /* Reset ASPM state to default value */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, ASPM_FORCE_CTL, 0x3F, 0); + /* Reset delink mode */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CHANGE_LINK_STATE, 0x0A, 0); + /* Card driving select */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DRIVE_SEL, + 0x07, DRIVER_TYPE_D); + /* Enable SSC Clock */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL1, + 0xFF, SSC_8X_EN | SSC_SEL_4M); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL2, 0xFF, 0x12); + /* Disable cd_pwr_save */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CHANGE_LINK_STATE, 0x16, 0x10); + /* Clear Link Ready Interrupt */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, IRQSTAT0, + LINK_RDY_INT, LINK_RDY_INT); + /* Enlarge the estimation window of PERST# glitch + * to reduce the chance of invalid card interrupt + */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PERST_GLITCH_WIDTH, 0xFF, 0x80); + /* Update RC oscillator to 400k + * bit[0] F_HIGH: for RC oscillator, Rst_value is 1'b1 + * 1: 2M 0: 400k + */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, RCCTL, 0x01, 0x00); + /* Set interrupt write clear + * bit 1: U_elbi_if_rd_clr_en + * 1: Enable ELBI interrupt[31:22] & [7:0] flag read clear + * 0: ELBI interrupt flag[31:22] & [7:0] only can be write clear + */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, NFTS_TX_CTRL, 0x02, 0); + /* Force CLKREQ# PIN to drive 0 to request clock */ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0x08, 0x08); + + err = rtsx_pci_send_cmd(pcr, 100); + if (err < 0) + return err; + + /* Enable clk_request_n to enable clock power management */ + rtsx_pci_write_config_byte(pcr, 0x81, 1); + /* Enter L1 when host tx idle */ + rtsx_pci_write_config_byte(pcr, 0x70F, 0x5B); + + if (pcr->ops->extra_init_hw) { + err = pcr->ops->extra_init_hw(pcr); + if (err < 0) + return err; + } + + return 0; +} + +static int rtsx_pci_init_chip(struct rtsx_pcr *pcr) +{ + int err; + + spin_lock_init(&pcr->lock); + mutex_init(&pcr->pcr_mutex); + + switch (PCI_PID(pcr)) { + default: + case 0x5209: + rts5209_init_params(pcr); + break; + + case 0x5229: + rts5229_init_params(pcr); + break; + + case 0x5289: + rtl8411_init_params(pcr); + break; + } + + dev_dbg(&(pcr->pci->dev), "PID: 0x%04x, IC version: 0x%02x\n", + PCI_PID(pcr), pcr->ic_version); + + pcr->slots = kcalloc(pcr->num_slots, sizeof(struct rtsx_slot), + GFP_KERNEL); + if (!pcr->slots) + return -ENOMEM; + + pcr->state = PDEV_STAT_IDLE; + err = rtsx_pci_init_hw(pcr); + if (err < 0) { + kfree(pcr->slots); + return err; + } + + return 0; +} + +static int __devinit rtsx_pci_probe(struct pci_dev *pcidev, + const struct pci_device_id *id) +{ + struct rtsx_pcr *pcr; + struct pcr_handle *handle; + u32 base, len; + int ret, i; + + dev_dbg(&(pcidev->dev), + ": Realtek PCI-E Card Reader found at %s [%04x:%04x] (rev %x)\n", + pci_name(pcidev), (int)pcidev->vendor, (int)pcidev->device, + (int)pcidev->revision); + + ret = pci_enable_device(pcidev); + if (ret) + return ret; + + ret = pci_request_regions(pcidev, DRV_NAME_RTSX_PCI); + if (ret) + goto disable; + + pcr = kzalloc(sizeof(*pcr), GFP_KERNEL); + if (!pcr) { + ret = -ENOMEM; + goto release_pci; + } + + handle = kzalloc(sizeof(*handle), GFP_KERNEL); + if (!handle) { + ret = -ENOMEM; + goto free_pcr; + } + handle->pcr = pcr; + + if (!idr_pre_get(&rtsx_pci_idr, GFP_KERNEL)) { + ret = -ENOMEM; + goto free_handle; + } + + spin_lock(&rtsx_pci_lock); + ret = idr_get_new(&rtsx_pci_idr, pcr, &pcr->id); + spin_unlock(&rtsx_pci_lock); + if (ret) + goto free_handle; + + pcr->pci = pcidev; + dev_set_drvdata(&pcidev->dev, handle); + + len = pci_resource_len(pcidev, 0); + base = pci_resource_start(pcidev, 0); + pcr->remap_addr = ioremap_nocache(base, len); + if (!pcr->remap_addr) { + ret = -ENOMEM; + goto free_host; + } + + pcr->rtsx_resv_buf = dma_alloc_coherent(&(pcidev->dev), + RTSX_RESV_BUF_LEN, &(pcr->rtsx_resv_buf_addr), + GFP_KERNEL); + if (pcr->rtsx_resv_buf == NULL) { + ret = -ENXIO; + goto unmap; + } + pcr->host_cmds_ptr = pcr->rtsx_resv_buf; + pcr->host_cmds_addr = pcr->rtsx_resv_buf_addr; + pcr->host_sg_tbl_ptr = pcr->rtsx_resv_buf + HOST_CMDS_BUF_LEN; + pcr->host_sg_tbl_addr = pcr->rtsx_resv_buf_addr + HOST_CMDS_BUF_LEN; + + pcr->card_inserted = 0; + pcr->card_removed = 0; + INIT_DELAYED_WORK(&pcr->carddet_work, rtsx_pci_card_detect); + INIT_DELAYED_WORK(&pcr->idle_work, rtsx_pci_idle_work); + + pcr->msi_en = msi_en; + if (pcr->msi_en) { + ret = pci_enable_msi(pcidev); + if (ret < 0) + pcr->msi_en = false; + } + + ret = rtsx_pci_acquire_irq(pcr); + if (ret < 0) + goto free_dma; + + pci_set_master(pcidev); + synchronize_irq(pcr->irq); + + ret = rtsx_pci_init_chip(pcr); + if (ret < 0) + goto disable_irq; + + for (i = 0; i < ARRAY_SIZE(rtsx_pcr_cells); i++) { + rtsx_pcr_cells[i].platform_data = handle; + rtsx_pcr_cells[i].pdata_size = sizeof(*handle); + } + ret = mfd_add_devices(&pcidev->dev, pcr->id, rtsx_pcr_cells, + ARRAY_SIZE(rtsx_pcr_cells), NULL, 0, NULL); + if (ret < 0) + goto disable_irq; + + schedule_delayed_work(&pcr->idle_work, msecs_to_jiffies(200)); + + return 0; + +disable_irq: + free_irq(pcr->irq, (void *)pcr); +free_dma: + dma_free_coherent(&(pcr->pci->dev), RTSX_RESV_BUF_LEN, + pcr->rtsx_resv_buf, pcr->rtsx_resv_buf_addr); +unmap: + iounmap(pcr->remap_addr); +free_host: + dev_set_drvdata(&pcidev->dev, NULL); +free_handle: + kfree(handle); +free_pcr: + kfree(pcr); +release_pci: + pci_release_regions(pcidev); +disable: + pci_disable_device(pcidev); + + return ret; +} + +static void __devexit rtsx_pci_remove(struct pci_dev *pcidev) +{ + struct pcr_handle *handle = pci_get_drvdata(pcidev); + struct rtsx_pcr *pcr = handle->pcr; + + pcr->remove_pci = true; + + cancel_delayed_work(&pcr->carddet_work); + cancel_delayed_work(&pcr->idle_work); + + mfd_remove_devices(&pcidev->dev); + + dma_free_coherent(&(pcr->pci->dev), RTSX_RESV_BUF_LEN, + pcr->rtsx_resv_buf, pcr->rtsx_resv_buf_addr); + free_irq(pcr->irq, (void *)pcr); + if (pcr->msi_en) + pci_disable_msi(pcr->pci); + iounmap(pcr->remap_addr); + + dev_set_drvdata(&pcidev->dev, NULL); + pci_release_regions(pcidev); + pci_disable_device(pcidev); + + spin_lock(&rtsx_pci_lock); + idr_remove(&rtsx_pci_idr, pcr->id); + spin_unlock(&rtsx_pci_lock); + + kfree(pcr->slots); + kfree(pcr); + kfree(handle); + + dev_dbg(&(pcidev->dev), + ": Realtek PCI-E Card Reader at %s [%04x:%04x] has been removed\n", + pci_name(pcidev), (int)pcidev->vendor, (int)pcidev->device); +} + +#ifdef CONFIG_PM + +static int rtsx_pci_suspend(struct pci_dev *pcidev, pm_message_t state) +{ + struct pcr_handle *handle; + struct rtsx_pcr *pcr; + int ret = 0; + + dev_dbg(&(pcidev->dev), "--> %s\n", __func__); + + handle = pci_get_drvdata(pcidev); + pcr = handle->pcr; + + cancel_delayed_work(&pcr->carddet_work); + cancel_delayed_work(&pcr->idle_work); + + mutex_lock(&pcr->pcr_mutex); + + if (pcr->ops->turn_off_led) + pcr->ops->turn_off_led(pcr); + + rtsx_pci_writel(pcr, RTSX_BIER, 0); + pcr->bier = 0; + + rtsx_pci_write_register(pcr, PETXCFG, 0x08, 0x08); + rtsx_pci_write_register(pcr, HOST_SLEEP_STATE, 0x03, 0x02); + + pci_save_state(pcidev); + pci_enable_wake(pcidev, pci_choose_state(pcidev, state), 0); + pci_disable_device(pcidev); + pci_set_power_state(pcidev, pci_choose_state(pcidev, state)); + + mutex_unlock(&pcr->pcr_mutex); + return ret; +} + +static int rtsx_pci_resume(struct pci_dev *pcidev) +{ + struct pcr_handle *handle; + struct rtsx_pcr *pcr; + int ret = 0; + + dev_dbg(&(pcidev->dev), "--> %s\n", __func__); + + handle = pci_get_drvdata(pcidev); + pcr = handle->pcr; + + mutex_lock(&pcr->pcr_mutex); + + pci_set_power_state(pcidev, PCI_D0); + pci_restore_state(pcidev); + ret = pci_enable_device(pcidev); + if (ret) + goto out; + pci_set_master(pcidev); + + ret = rtsx_pci_write_register(pcr, HOST_SLEEP_STATE, 0x03, 0x00); + if (ret) + goto out; + + ret = rtsx_pci_init_hw(pcr); + if (ret) + goto out; + + schedule_delayed_work(&pcr->idle_work, msecs_to_jiffies(200)); + +out: + mutex_unlock(&pcr->pcr_mutex); + return ret; +} + +#else /* CONFIG_PM */ + +#define rtsx_pci_suspend NULL +#define rtsx_pci_resume NULL + +#endif /* CONFIG_PM */ + +static struct pci_driver rtsx_pci_driver = { + .name = DRV_NAME_RTSX_PCI, + .id_table = rtsx_pci_ids, + .probe = rtsx_pci_probe, + .remove = __devexit_p(rtsx_pci_remove), + .suspend = rtsx_pci_suspend, + .resume = rtsx_pci_resume, +}; +module_pci_driver(rtsx_pci_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Wei WANG "); +MODULE_DESCRIPTION("Realtek PCI-E Card Reader Driver"); diff --git a/drivers/mfd/rtsx_pcr.h b/drivers/mfd/rtsx_pcr.h new file mode 100644 index 0000000..12462c1 --- /dev/null +++ b/drivers/mfd/rtsx_pcr.h @@ -0,0 +1,32 @@ +/* Driver for Realtek PCI-Express card reader + * + * Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + * + * Author: + * Wei WANG + * No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China + */ + +#ifndef __RTSX_PCR_H +#define __RTSX_PCR_H + +#include + +void rts5209_init_params(struct rtsx_pcr *pcr); +void rts5229_init_params(struct rtsx_pcr *pcr); +void rtl8411_init_params(struct rtsx_pcr *pcr); + +#endif -- cgit v1.1 From 45e48aa6cabab6b03ac62caded4d86f157997b13 Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Thu, 8 Nov 2012 10:38:56 +0100 Subject: mfd: Select MFD_CORE for rtsx The realtek driver use the MFD core API and thus must select MFD_CORE. Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index d0cb4d4..3f2187a 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -66,6 +66,7 @@ config MFD_SM501_GPIO config MFD_RTSX_PCI tristate "Support for Realtek PCI-E card reader" depends on PCI + select MFD_CORE help This supports for Realtek PCI-Express card reader including rts5209, rts5229, rtl8411, etc. Realtek card reader supports access to many -- cgit v1.1 From aec17ea1ee78923f1287c18e9905c19e4dfd9c64 Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Fri, 9 Nov 2012 10:19:54 +0100 Subject: mfd: Explicitely include slab.h to rtsx This fixes the following build error on some architectures (parisc at least): drivers/mfd/rtsx_pcr.c: In function 'rtsx_pci_init_chip': drivers/mfd/rtsx_pcr.c:985:2: error: implicit declaration of function 'kcalloc' [-Werror=implicit-function-declaration] drivers/mfd/rtsx_pcr.c:985:13: warning: assignment makes pointer from integer without a cast [enabled by default] Signed-off-by: Samuel Ortiz --- drivers/mfd/rtsx_pcr.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c index 56d4377..3a44efa 100644 --- a/drivers/mfd/rtsx_pcr.c +++ b/drivers/mfd/rtsx_pcr.c @@ -22,6 +22,7 @@ #include #include +#include #include #include #include -- cgit v1.1 From 8ae754ebd5edffa0b2a2bafa4879a9ace01d5477 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 5 Nov 2012 16:10:29 +0100 Subject: mfd: ab8500-core: Remove unused ab8500-gpio IRQ ranges The IRQ ranges provided in ab8500-core to be passed on to the ab8500-gpio driver are not only redundant, but they are also causing a warning in the boot log. These IRQ ranges, like any other MFD related IRQ resource are passed though MFD core for automatic conversion to virtual IRQs; however, MFD core does not support IRQ mapping of IRQ ranges. Let's just remove them. Acked-by: Arnd Bergmann Tested-by: Linus Walleij Signed-off-by: Lee Jones Signed-off-by: Samuel Ortiz --- drivers/mfd/ab8500-core.c | 36 ------------------------------------ 1 file changed, 36 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index 1667c77..e7197fe 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -591,38 +591,6 @@ int ab8500_suspend(struct ab8500 *ab8500) return 0; } -/* AB8500 GPIO Resources */ -static struct resource __devinitdata ab8500_gpio_resources[] = { - { - .name = "GPIO_INT6", - .start = AB8500_INT_GPIO6R, - .end = AB8500_INT_GPIO41F, - .flags = IORESOURCE_IRQ, - } -}; - -/* AB9540 GPIO Resources */ -static struct resource __devinitdata ab9540_gpio_resources[] = { - { - .name = "GPIO_INT6", - .start = AB8500_INT_GPIO6R, - .end = AB8500_INT_GPIO41F, - .flags = IORESOURCE_IRQ, - }, - { - .name = "GPIO_INT14", - .start = AB9540_INT_GPIO50R, - .end = AB9540_INT_GPIO54R, - .flags = IORESOURCE_IRQ, - }, - { - .name = "GPIO_INT15", - .start = AB9540_INT_GPIO50F, - .end = AB9540_INT_GPIO54F, - .flags = IORESOURCE_IRQ, - } -}; - static struct resource __devinitdata ab8500_gpadc_resources[] = { { .name = "HW_CONV_END", @@ -1065,8 +1033,6 @@ static struct mfd_cell __devinitdata ab8500_devs[] = { { .name = "ab8500-gpio", .of_compatible = "stericsson,ab8500-gpio", - .num_resources = ARRAY_SIZE(ab8500_gpio_resources), - .resources = ab8500_gpio_resources, }, { .name = "ab8500-usb", @@ -1083,8 +1049,6 @@ static struct mfd_cell __devinitdata ab8500_devs[] = { static struct mfd_cell __devinitdata ab9540_devs[] = { { .name = "ab8500-gpio", - .num_resources = ARRAY_SIZE(ab9540_gpio_resources), - .resources = ab9540_gpio_resources, }, { .name = "ab9540-usb", -- cgit v1.1 From 7da0cbfc54c82eec793ff3d1b23b7a25406c6dba Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 5 Nov 2012 16:10:30 +0100 Subject: mfd: Prevent STMPE from abusing mfd_add_devices' irq_base parameter Originally IRQ incrementers were provided in some template resource structures for keypad and touchscreen devices. These were passed as IORESOURCE_IRQs to MFD core in the usual way. The true device IRQs were instead added to the irq_base when mfd_add_devices was invoked. This is clearly an abuse of the call, and does not scale when IRQ Domains are brought into play. Before we can provide the STMPE with its own IRQ Domain we must first fix this. This patche keeps most of the driver's structure, keeping the template strategy. However, instead of providing the IRQ as an increment to irq_base, we dynamically populate the IORESOURCE_IRQ with the correct device IRQ. Acked-by: Arnd Bergmann Acked-by: Linus Walleij Signed-off-by: Lee Jones Signed-off-by: Samuel Ortiz --- drivers/mfd/stmpe.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index c94f521..ad13cb0 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -310,14 +310,10 @@ static struct mfd_cell stmpe_gpio_cell_noirq = { static struct resource stmpe_keypad_resources[] = { { .name = "KEYPAD", - .start = 0, - .end = 0, .flags = IORESOURCE_IRQ, }, { .name = "KEYPAD_OVER", - .start = 1, - .end = 1, .flags = IORESOURCE_IRQ, }, }; @@ -397,14 +393,10 @@ static struct stmpe_variant_info stmpe801_noirq = { static struct resource stmpe_ts_resources[] = { { .name = "TOUCH_DET", - .start = 0, - .end = 0, .flags = IORESOURCE_IRQ, }, { .name = "FIFO_TH", - .start = 1, - .end = 1, .flags = IORESOURCE_IRQ, }, }; @@ -959,10 +951,10 @@ static int __devinit stmpe_chip_init(struct stmpe *stmpe) } static int __devinit stmpe_add_device(struct stmpe *stmpe, - struct mfd_cell *cell, int irq) + struct mfd_cell *cell) { return mfd_add_devices(stmpe->dev, stmpe->pdata->id, cell, 1, - NULL, stmpe->irq_base + irq, NULL); + NULL, stmpe->irq_base, NULL); } static int __devinit stmpe_devices_init(struct stmpe *stmpe) @@ -970,7 +962,7 @@ static int __devinit stmpe_devices_init(struct stmpe *stmpe) struct stmpe_variant_info *variant = stmpe->variant; unsigned int platform_blocks = stmpe->pdata->blocks; int ret = -EINVAL; - int i; + int i, j; for (i = 0; i < variant->num_blocks; i++) { struct stmpe_variant_block *block = &variant->blocks[i]; @@ -978,8 +970,17 @@ static int __devinit stmpe_devices_init(struct stmpe *stmpe) if (!(platform_blocks & block->block)) continue; + for (j = 0; j < block->cell->num_resources; j++) { + struct resource *res = + (struct resource *) &block->cell->resources[j]; + + /* Dynamically fill in a variant's IRQ. */ + if (res->flags & IORESOURCE_IRQ) + res->start = res->end = block->irq + j; + } + platform_blocks &= ~block->block; - ret = stmpe_add_device(stmpe, block->cell, block->irq); + ret = stmpe_add_device(stmpe, block->cell); if (ret) return ret; } -- cgit v1.1 From 76f93992e4c44f30be797d5c99d6f369ed001747 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 5 Nov 2012 16:10:31 +0100 Subject: mfd: Provide the STMPE driver with its own IRQ domain The STMPE driver is yet another IRQ controller which requires its own IRQ domain. So, we provide it with one. Acked-by: Arnd Bergmann Acked-by: Linus Walleij Signed-off-by: Lee Jones Signed-off-by: Samuel Ortiz --- drivers/mfd/stmpe.c | 82 ++++++++++++++++++++++++++++++++--------------------- 1 file changed, 50 insertions(+), 32 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index ad13cb0..5c8d8f2 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -757,7 +758,9 @@ static irqreturn_t stmpe_irq(int irq, void *data) int i; if (variant->id_val == STMPE801_ID) { - handle_nested_irq(stmpe->irq_base); + int base = irq_create_mapping(stmpe->domain, 0); + + handle_nested_irq(base); return IRQ_HANDLED; } @@ -778,8 +781,9 @@ static irqreturn_t stmpe_irq(int irq, void *data) while (status) { int bit = __ffs(status); int line = bank * 8 + bit; + int nestedirq = irq_create_mapping(stmpe->domain, line); - handle_nested_irq(stmpe->irq_base + line); + handle_nested_irq(nestedirq); status &= ~(1 << bit); } @@ -820,7 +824,7 @@ static void stmpe_irq_sync_unlock(struct irq_data *data) static void stmpe_irq_mask(struct irq_data *data) { struct stmpe *stmpe = irq_data_get_irq_chip_data(data); - int offset = data->irq - stmpe->irq_base; + int offset = data->hwirq; int regoffset = offset / 8; int mask = 1 << (offset % 8); @@ -830,7 +834,7 @@ static void stmpe_irq_mask(struct irq_data *data) static void stmpe_irq_unmask(struct irq_data *data) { struct stmpe *stmpe = irq_data_get_irq_chip_data(data); - int offset = data->irq - stmpe->irq_base; + int offset = data->hwirq; int regoffset = offset / 8; int mask = 1 << (offset % 8); @@ -845,43 +849,62 @@ static struct irq_chip stmpe_irq_chip = { .irq_unmask = stmpe_irq_unmask, }; -static int __devinit stmpe_irq_init(struct stmpe *stmpe) +static int stmpe_irq_map(struct irq_domain *d, unsigned int virq, + irq_hw_number_t hwirq) { + struct stmpe *stmpe = d->host_data; struct irq_chip *chip = NULL; - int num_irqs = stmpe->variant->num_irqs; - int base = stmpe->irq_base; - int irq; if (stmpe->variant->id_val != STMPE801_ID) chip = &stmpe_irq_chip; - for (irq = base; irq < base + num_irqs; irq++) { - irq_set_chip_data(irq, stmpe); - irq_set_chip_and_handler(irq, chip, handle_edge_irq); - irq_set_nested_thread(irq, 1); + irq_set_chip_data(virq, stmpe); + irq_set_chip_and_handler(virq, chip, handle_edge_irq); + irq_set_nested_thread(virq, 1); #ifdef CONFIG_ARM - set_irq_flags(irq, IRQF_VALID); + set_irq_flags(virq, IRQF_VALID); #else - irq_set_noprobe(irq); + irq_set_noprobe(virq); #endif - } return 0; } -static void stmpe_irq_remove(struct stmpe *stmpe) +static void stmpe_irq_unmap(struct irq_domain *d, unsigned int virq) { - int num_irqs = stmpe->variant->num_irqs; - int base = stmpe->irq_base; - int irq; - - for (irq = base; irq < base + num_irqs; irq++) { #ifdef CONFIG_ARM - set_irq_flags(irq, 0); + set_irq_flags(virq, 0); #endif - irq_set_chip_and_handler(irq, NULL, NULL); - irq_set_chip_data(irq, NULL); + irq_set_chip_and_handler(virq, NULL, NULL); + irq_set_chip_data(virq, NULL); +} + +static struct irq_domain_ops stmpe_irq_ops = { + .map = stmpe_irq_map, + .unmap = stmpe_irq_unmap, + .xlate = irq_domain_xlate_twocell, +}; + +static int __devinit stmpe_irq_init(struct stmpe *stmpe) +{ + int base = stmpe->irq_base; + int num_irqs = stmpe->variant->num_irqs; + + if (base) { + stmpe->domain = irq_domain_add_legacy( + NULL, num_irqs, base, 0, &stmpe_irq_ops, stmpe); + } + else { + stmpe->domain = irq_domain_add_linear( + NULL, num_irqs, &stmpe_irq_ops, stmpe); + } + + if (!stmpe->domain) { + dev_err(stmpe->dev, "Failed to create irqdomain\n"); + return -ENOSYS; } + + return 0; } static int __devinit stmpe_chip_init(struct stmpe *stmpe) @@ -954,7 +977,7 @@ static int __devinit stmpe_add_device(struct stmpe *stmpe, struct mfd_cell *cell) { return mfd_add_devices(stmpe->dev, stmpe->pdata->id, cell, 1, - NULL, stmpe->irq_base, NULL); + NULL, stmpe->irq_base, stmpe->domain); } static int __devinit stmpe_devices_init(struct stmpe *stmpe) @@ -1067,7 +1090,7 @@ int __devinit stmpe_probe(struct stmpe_client_info *ci, int partnum) if (ret) { dev_err(stmpe->dev, "failed to request IRQ: %d\n", ret); - goto out_removeirq; + goto free_gpio; } } @@ -1083,9 +1106,6 @@ out_removedevs: mfd_remove_devices(stmpe->dev); if (stmpe->irq >= 0) free_irq(stmpe->irq, stmpe); -out_removeirq: - if (stmpe->irq >= 0) - stmpe_irq_remove(stmpe); free_gpio: if (pdata->irq_over_gpio) gpio_free(pdata->irq_gpio); @@ -1098,10 +1118,8 @@ int stmpe_remove(struct stmpe *stmpe) { mfd_remove_devices(stmpe->dev); - if (stmpe->irq >= 0) { + if (stmpe->irq >= 0) free_irq(stmpe->irq, stmpe); - stmpe_irq_remove(stmpe); - } if (stmpe->pdata->irq_over_gpio) gpio_free(stmpe->pdata->irq_gpio); -- cgit v1.1 From 5204e51d30ceb9715e3d690efe84c50e2e9d557d Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 5 Nov 2012 16:10:32 +0100 Subject: mfd: Correct copy and paste mistake in stmpe When specifying IRQ numbers for the stmpe1601, IRQ defines for the stmpe24xx were used instead. Fortunately, the defined numbers are the same, hence why it survived testing. This fix is merely an aesthetic one. Acked-by: Arnd Bergmann Acked-by: Linus Walleij Signed-off-by: Lee Jones Signed-off-by: Samuel Ortiz --- drivers/mfd/stmpe.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index 5c8d8f2..e50ebdf 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -519,12 +519,12 @@ static const u8 stmpe1601_regs[] = { static struct stmpe_variant_block stmpe1601_blocks[] = { { .cell = &stmpe_gpio_cell, - .irq = STMPE24XX_IRQ_GPIOC, + .irq = STMPE1601_IRQ_GPIOC, .block = STMPE_BLOCK_GPIO, }, { .cell = &stmpe_keypad_cell, - .irq = STMPE24XX_IRQ_KEYPAD, + .irq = STMPE1601_IRQ_KEYPAD, .block = STMPE_BLOCK_KEYPAD, }, }; -- cgit v1.1 From 909582caae384418723ccdb00e848f4140257195 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 5 Nov 2012 16:10:33 +0100 Subject: mfd: Enable the STMPE MFD for Device Tree This patch allows the STMPE Multi-Functional Device to be correctly initialised when booting with Device Tree support enabled. Its children are specified by the addition of subordinate devices to the STMPE node in the Device Tree file. Acked-by: Arnd Bergmann Acked-by: Linus Walleij Signed-off-by: Lee Jones Signed-off-by: Samuel Ortiz --- drivers/mfd/stmpe.c | 48 ++++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 42 insertions(+), 6 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index e50ebdf..ba157d4 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -885,18 +885,19 @@ static struct irq_domain_ops stmpe_irq_ops = { .xlate = irq_domain_xlate_twocell, }; -static int __devinit stmpe_irq_init(struct stmpe *stmpe) +static int __devinit stmpe_irq_init(struct stmpe *stmpe, + struct device_node *np) { int base = stmpe->irq_base; int num_irqs = stmpe->variant->num_irqs; if (base) { stmpe->domain = irq_domain_add_legacy( - NULL, num_irqs, base, 0, &stmpe_irq_ops, stmpe); + np, num_irqs, base, 0, &stmpe_irq_ops, stmpe); } else { stmpe->domain = irq_domain_add_linear( - NULL, num_irqs, &stmpe_irq_ops, stmpe); + np, num_irqs, &stmpe_irq_ops, stmpe); } if (!stmpe->domain) { @@ -1016,15 +1017,50 @@ static int __devinit stmpe_devices_init(struct stmpe *stmpe) return ret; } +void __devinit stmpe_of_probe(struct stmpe_platform_data *pdata, + struct device_node *np) +{ + struct device_node *child; + + of_property_read_u32(np, "st,autosleep-timeout", + &pdata->autosleep_timeout); + + pdata->autosleep = (pdata->autosleep_timeout) ? true : false; + + for_each_child_of_node(np, child) { + if (!strcmp(child->name, "stmpe_gpio")) { + pdata->blocks |= STMPE_BLOCK_GPIO; + } + if (!strcmp(child->name, "stmpe_keypad")) { + pdata->blocks |= STMPE_BLOCK_KEYPAD; + } + if (!strcmp(child->name, "stmpe_touchscreen")) { + pdata->blocks |= STMPE_BLOCK_TOUCHSCREEN; + } + if (!strcmp(child->name, "stmpe_adc")) { + pdata->blocks |= STMPE_BLOCK_ADC; + } + } +} + /* Called from client specific probe routines */ int __devinit stmpe_probe(struct stmpe_client_info *ci, int partnum) { struct stmpe_platform_data *pdata = dev_get_platdata(ci->dev); + struct device_node *np = ci->dev->of_node; struct stmpe *stmpe; int ret; - if (!pdata) - return -EINVAL; + if (!pdata) { + if (np) { + pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + stmpe_of_probe(pdata, np); + } else + return -EINVAL; + } stmpe = kzalloc(sizeof(struct stmpe), GFP_KERNEL); if (!stmpe) @@ -1080,7 +1116,7 @@ int __devinit stmpe_probe(struct stmpe_client_info *ci, int partnum) goto free_gpio; if (stmpe->irq >= 0) { - ret = stmpe_irq_init(stmpe); + ret = stmpe_irq_init(stmpe, np); if (ret) goto free_gpio; -- cgit v1.1 From 8c4203cb5814f53169dc4ff084a65dcf509b6f60 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 5 Nov 2012 16:10:35 +0100 Subject: mfd: ab8500-core: Use devm_* memory/IRQ and allocation/free routines It is better to use devm_* calls, as they allow for easier and more automatic clean-up. Resources are device allocated, so when a device is freed, so are all associated resources. Acked-by: Linus Walleij Signed-off-by: Lee Jones Signed-off-by: Samuel Ortiz --- drivers/mfd/ab8500-core.c | 62 ++++++++++++++++++----------------------------- 1 file changed, 24 insertions(+), 38 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index e7197fe..2a69dc2 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -1233,7 +1233,7 @@ static int __devinit ab8500_probe(struct platform_device *pdev) int i; u8 value; - ab8500 = kzalloc(sizeof *ab8500, GFP_KERNEL); + ab8500 = devm_kzalloc(&pdev->dev, sizeof *ab8500, GFP_KERNEL); if (!ab8500) return -ENOMEM; @@ -1243,10 +1243,8 @@ static int __devinit ab8500_probe(struct platform_device *pdev) ab8500->dev = &pdev->dev; resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!resource) { - ret = -ENODEV; - goto out_free_ab8500; - } + if (!resource) + return -ENODEV; ab8500->irq = resource->start; @@ -1269,7 +1267,7 @@ static int __devinit ab8500_probe(struct platform_device *pdev) ret = get_register_interruptible(ab8500, AB8500_MISC, AB8500_IC_NAME_REG, &value); if (ret < 0) - goto out_free_ab8500; + return ret; ab8500->version = value; } @@ -1277,7 +1275,7 @@ static int __devinit ab8500_probe(struct platform_device *pdev) ret = get_register_interruptible(ab8500, AB8500_MISC, AB8500_REV_REG, &value); if (ret < 0) - goto out_free_ab8500; + return ret; ab8500->chip_id = value; @@ -1294,14 +1292,13 @@ static int __devinit ab8500_probe(struct platform_device *pdev) ab8500->mask_size = AB8500_NUM_IRQ_REGS; ab8500->irq_reg_offset = ab8500_irq_regoffset; } - ab8500->mask = kzalloc(ab8500->mask_size, GFP_KERNEL); + ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL); if (!ab8500->mask) return -ENOMEM; - ab8500->oldmask = kzalloc(ab8500->mask_size, GFP_KERNEL); - if (!ab8500->oldmask) { - ret = -ENOMEM; - goto out_freemask; - } + ab8500->oldmask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL); + if (!ab8500->oldmask) + return -ENOMEM; + /* * ab8500 has switched off due to (SWITCH_OFF_STATUS): * 0x01 Swoff bit programming @@ -1355,37 +1352,37 @@ static int __devinit ab8500_probe(struct platform_device *pdev) ret = abx500_register_ops(ab8500->dev, &ab8500_ops); if (ret) - goto out_freeoldmask; + return ret; for (i = 0; i < ab8500->mask_size; i++) ab8500->mask[i] = ab8500->oldmask[i] = 0xff; ret = ab8500_irq_init(ab8500, np); if (ret) - goto out_freeoldmask; + return ret; /* Activate this feature only in ab9540 */ /* till tests are done on ab8500 1p2 or later*/ if (is_ab9540(ab8500)) { - ret = request_threaded_irq(ab8500->irq, NULL, - ab8500_hierarchical_irq, - IRQF_ONESHOT | IRQF_NO_SUSPEND, - "ab8500", ab8500); + ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL, + ab8500_hierarchical_irq, + IRQF_ONESHOT | IRQF_NO_SUSPEND, + "ab8500", ab8500); } else { - ret = request_threaded_irq(ab8500->irq, NULL, - ab8500_irq, - IRQF_ONESHOT | IRQF_NO_SUSPEND, - "ab8500", ab8500); + ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL, + ab8500_irq, + IRQF_ONESHOT | IRQF_NO_SUSPEND, + "ab8500", ab8500); if (ret) - goto out_freeoldmask; + return ret; } ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs, ARRAY_SIZE(abx500_common_devs), NULL, ab8500->irq_base, ab8500->domain); if (ret) - goto out_freeirq; + return ret; if (is_ab9540(ab8500)) ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs, @@ -1396,14 +1393,14 @@ static int __devinit ab8500_probe(struct platform_device *pdev) ARRAY_SIZE(ab8500_devs), NULL, ab8500->irq_base, ab8500->domain); if (ret) - goto out_freeirq; + return ret; if (is_ab9540(ab8500) || is_ab8505(ab8500)) ret = mfd_add_devices(ab8500->dev, 0, ab9540_ab8505_devs, ARRAY_SIZE(ab9540_ab8505_devs), NULL, ab8500->irq_base, ab8500->domain); if (ret) - goto out_freeirq; + return ret; if (!no_bm) { /* Add battery management devices */ @@ -1424,17 +1421,6 @@ static int __devinit ab8500_probe(struct platform_device *pdev) dev_err(ab8500->dev, "error creating sysfs entries\n"); return ret; - -out_freeirq: - free_irq(ab8500->irq, ab8500); -out_freeoldmask: - kfree(ab8500->oldmask); -out_freemask: - kfree(ab8500->mask); -out_free_ab8500: - kfree(ab8500); - - return ret; } static int __devexit ab8500_remove(struct platform_device *pdev) -- cgit v1.1 From b851c06c241d4a2e43ee6007705765a9b1b3abb7 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 5 Nov 2012 16:10:36 +0100 Subject: mfd: Differentiate between u8500 and u9540 TCDM address mapping The TCDM mappings are quite different from u8500 to u9540. If these aren't correctly specified for a given board, it will fail to boot. Here we add the correct TCDM base for the u9540. Please note that although this patch allows us to boot the u9540, it doesn't provide us with full enablement. For that, another patch-set will follow which completely re-vamps the way the PRCMU is passed TCDM mappings. Acked-by: Linus Walleij Signed-off-by: Lee Jones Signed-off-by: Samuel Ortiz --- drivers/mfd/db8500-prcmu.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 00b8b0f..c56cedd 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -2711,7 +2711,7 @@ static int db8500_irq_init(struct device_node *np) void __init db8500_prcmu_early_init(void) { - if (cpu_is_u8500v2()) { + if (cpu_is_u8500v2() || cpu_is_u9540()) { void *tcpm_base = ioremap_nocache(U8500_PRCMU_TCPM_BASE, SZ_4K); if (tcpm_base != NULL) { @@ -2729,7 +2729,11 @@ void __init db8500_prcmu_early_init(void) iounmap(tcpm_base); } - tcdm_base = __io_address(U8500_PRCMU_TCDM_BASE); + if (cpu_is_u9540()) + tcdm_base = ioremap_nocache(U8500_PRCMU_TCDM_BASE, + SZ_4K + SZ_8K) + SZ_8K; + else + tcdm_base = __io_address(U8500_PRCMU_TCDM_BASE); } else { pr_err("prcmu: Unsupported chip version\n"); BUG(); -- cgit v1.1 From a32415202f709f39a059f776da28248c499e0bb5 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 11 Oct 2012 13:55:28 +0200 Subject: mfd: twl6040: Fix typo for power on failure Fix old copy paste bug: automatic power-down failed -> automatic power-up failed Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl6040-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c index 3f2a1cf..b220aa2 100644 --- a/drivers/mfd/twl6040-core.c +++ b/drivers/mfd/twl6040-core.c @@ -258,7 +258,7 @@ int twl6040_power(struct twl6040 *twl6040, int on) ret = twl6040_power_up_completion(twl6040, naudint); if (ret) { dev_err(twl6040->dev, - "automatic power-down failed\n"); + "automatic power-up failed\n"); twl6040->power_count = 0; goto out; } -- cgit v1.1 From eae9a9c85b106163b293bf8b0fec44943e98677c Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 11 Oct 2012 13:55:29 +0200 Subject: mfd: twl6040: Remove unused parameter for twl6040_power_up_completion() naudint parameter has not been used, remove it. Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl6040-core.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c index b220aa2..a46d987 100644 --- a/drivers/mfd/twl6040-core.c +++ b/drivers/mfd/twl6040-core.c @@ -218,8 +218,7 @@ static irqreturn_t twl6040_naudint_handler(int irq, void *data) return IRQ_HANDLED; } -static int twl6040_power_up_completion(struct twl6040 *twl6040, - int naudint) +static int twl6040_power_up_completion(struct twl6040 *twl6040) { int time_left; u8 intid; @@ -241,7 +240,6 @@ static int twl6040_power_up_completion(struct twl6040 *twl6040, int twl6040_power(struct twl6040 *twl6040, int on) { int audpwron = twl6040->audpwron; - int naudint = twl6040->irq; int ret = 0; mutex_lock(&twl6040->mutex); @@ -255,7 +253,7 @@ int twl6040_power(struct twl6040 *twl6040, int on) /* use AUDPWRON line */ gpio_set_value(audpwron, 1); /* wait for power-up completion */ - ret = twl6040_power_up_completion(twl6040, naudint); + ret = twl6040_power_up_completion(twl6040); if (ret) { dev_err(twl6040->dev, "automatic power-up failed\n"); -- cgit v1.1 From f9be134357c0200ce48f4cd56b4ec50d3d2e777e Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 11 Oct 2012 13:55:30 +0200 Subject: mfd: twl6040: Restructure power up and down code Rearrange the code path for power up and down sequence. Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl6040-core.c | 38 ++++++++++++++++++-------------------- 1 file changed, 18 insertions(+), 20 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c index a46d987..6d9db27 100644 --- a/drivers/mfd/twl6040-core.c +++ b/drivers/mfd/twl6040-core.c @@ -104,7 +104,7 @@ int twl6040_clear_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) EXPORT_SYMBOL(twl6040_clear_bits); /* twl6040 codec manual power-up sequence */ -static int twl6040_power_up(struct twl6040 *twl6040) +static int twl6040_power_up_manual(struct twl6040 *twl6040) { u8 ldoctl, ncpctl, lppllctl; int ret; @@ -158,11 +158,12 @@ ncp_err: ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA); twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); + dev_err(twl6040->dev, "manual power-up failed\n"); return ret; } /* twl6040 manual power-down sequence */ -static void twl6040_power_down(struct twl6040 *twl6040) +static void twl6040_power_down_manual(struct twl6040 *twl6040) { u8 ncpctl, ldoctl, lppllctl; @@ -218,18 +219,22 @@ static irqreturn_t twl6040_naudint_handler(int irq, void *data) return IRQ_HANDLED; } -static int twl6040_power_up_completion(struct twl6040 *twl6040) +static int twl6040_power_up_automatic(struct twl6040 *twl6040) { int time_left; - u8 intid; + + gpio_set_value(twl6040->audpwron, 1); time_left = wait_for_completion_timeout(&twl6040->ready, msecs_to_jiffies(144)); if (!time_left) { + u8 intid; + + dev_warn(twl6040->dev, "timeout waiting for READYINT\n"); intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID); if (!(intid & TWL6040_READYINT)) { - dev_err(twl6040->dev, - "timeout waiting for READYINT\n"); + dev_err(twl6040->dev, "automatic power-up failed\n"); + gpio_set_value(twl6040->audpwron, 0); return -ETIMEDOUT; } } @@ -239,7 +244,6 @@ static int twl6040_power_up_completion(struct twl6040 *twl6040) int twl6040_power(struct twl6040 *twl6040, int on) { - int audpwron = twl6040->audpwron; int ret = 0; mutex_lock(&twl6040->mutex); @@ -249,23 +253,17 @@ int twl6040_power(struct twl6040 *twl6040, int on) if (twl6040->power_count++) goto out; - if (gpio_is_valid(audpwron)) { - /* use AUDPWRON line */ - gpio_set_value(audpwron, 1); - /* wait for power-up completion */ - ret = twl6040_power_up_completion(twl6040); + if (gpio_is_valid(twl6040->audpwron)) { + /* use automatic power-up sequence */ + ret = twl6040_power_up_automatic(twl6040); if (ret) { - dev_err(twl6040->dev, - "automatic power-up failed\n"); twl6040->power_count = 0; goto out; } } else { /* use manual power-up sequence */ - ret = twl6040_power_up(twl6040); + ret = twl6040_power_up_manual(twl6040); if (ret) { - dev_err(twl6040->dev, - "manual power-up failed\n"); twl6040->power_count = 0; goto out; } @@ -286,15 +284,15 @@ int twl6040_power(struct twl6040 *twl6040, int on) if (--twl6040->power_count) goto out; - if (gpio_is_valid(audpwron)) { + if (gpio_is_valid(twl6040->audpwron)) { /* use AUDPWRON line */ - gpio_set_value(audpwron, 0); + gpio_set_value(twl6040->audpwron, 0); /* power-down sequence latency */ usleep_range(500, 700); } else { /* use manual power-down sequence */ - twl6040_power_down(twl6040); + twl6040_power_down_manual(twl6040); } twl6040->sysclk = 0; twl6040->mclk = 0; -- cgit v1.1 From 1ac96265a6f35080083e85b0f58182cdc9c07d0e Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 11 Oct 2012 13:55:31 +0200 Subject: mfd: twl6040: Correct Ready and Thermal interrupt handling Create new irq handler for thermal events in order to be able to handle the event and clean up the code regarding to interrupt handling: Use proper function names for the irq handlers No need to read the INTD register anymore. Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl6040-core.c | 52 +++++++++++++++++++++++++++------------------- 1 file changed, 31 insertions(+), 21 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c index 6d9db27..5817bc6 100644 --- a/drivers/mfd/twl6040-core.c +++ b/drivers/mfd/twl6040-core.c @@ -193,27 +193,27 @@ static void twl6040_power_down_manual(struct twl6040 *twl6040) twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); } -static irqreturn_t twl6040_naudint_handler(int irq, void *data) +static irqreturn_t twl6040_readyint_handler(int irq, void *data) { struct twl6040 *twl6040 = data; - u8 intid, status; - intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID); + complete(&twl6040->ready); - if (intid & TWL6040_READYINT) - complete(&twl6040->ready); + return IRQ_HANDLED; +} - if (intid & TWL6040_THINT) { - status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS); - if (status & TWL6040_TSHUTDET) { - dev_warn(twl6040->dev, - "Thermal shutdown, powering-off"); - twl6040_power(twl6040, 0); - } else { - dev_warn(twl6040->dev, - "Leaving thermal shutdown, powering-on"); - twl6040_power(twl6040, 1); - } +static irqreturn_t twl6040_thint_handler(int irq, void *data) +{ + struct twl6040 *twl6040 = data; + u8 status; + + status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS); + if (status & TWL6040_TSHUTDET) { + dev_warn(twl6040->dev, "Thermal shutdown, powering-off"); + twl6040_power(twl6040, 0); + } else { + dev_warn(twl6040->dev, "Leaving thermal shutdown, powering-on"); + twl6040_power(twl6040, 1); } return IRQ_HANDLED; @@ -580,12 +580,19 @@ static int __devinit twl6040_probe(struct i2c_client *client, goto irq_init_err; ret = request_threaded_irq(twl6040->irq_base + TWL6040_IRQ_READY, - NULL, twl6040_naudint_handler, IRQF_ONESHOT, + NULL, twl6040_readyint_handler, IRQF_ONESHOT, "twl6040_irq_ready", twl6040); if (ret) { - dev_err(twl6040->dev, "READY IRQ request failed: %d\n", - ret); - goto irq_err; + dev_err(twl6040->dev, "READY IRQ request failed: %d\n", ret); + goto readyirq_err; + } + + ret = request_threaded_irq(twl6040->irq_base + TWL6040_IRQ_TH, + NULL, twl6040_thint_handler, IRQF_ONESHOT, + "twl6040_irq_th", twl6040); + if (ret) { + dev_err(twl6040->dev, "Thermal IRQ request failed: %d\n", ret); + goto thirq_err; } /* dual-access registers controlled by I2C only */ @@ -650,8 +657,10 @@ static int __devinit twl6040_probe(struct i2c_client *client, return 0; mfd_err: + free_irq(twl6040->irq_base + TWL6040_IRQ_TH, twl6040); +thirq_err: free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040); -irq_err: +readyirq_err: twl6040_irq_exit(twl6040); irq_init_err: if (gpio_is_valid(twl6040->audpwron)) @@ -677,6 +686,7 @@ static int __devexit twl6040_remove(struct i2c_client *client) gpio_free(twl6040->audpwron); free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040); + free_irq(twl6040->irq_base + TWL6040_IRQ_TH, twl6040); twl6040_irq_exit(twl6040); mfd_remove_devices(&client->dev); -- cgit v1.1 From ab7edb149c7548541ee588b8372c2041b6f1cbc8 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 11 Oct 2012 13:55:32 +0200 Subject: mfd: twl6040: Convert to use regmap_irq With regmap_irq it is possible to remove the twl6040-irq.c file and simplify the code. Signed-off-by: Peter Ujfalusi Reviewed-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 4 +- drivers/mfd/Makefile | 2 +- drivers/mfd/twl6040-core.c | 55 ++++++++---- drivers/mfd/twl6040-irq.c | 205 --------------------------------------------- 4 files changed, 43 insertions(+), 223 deletions(-) delete mode 100644 drivers/mfd/twl6040-irq.c (limited to 'drivers/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 3f2187a..34242ca 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -321,10 +321,10 @@ config MFD_TWL4030_AUDIO config TWL6040_CORE bool "Support for TWL6040 audio codec" - depends on I2C=y && GENERIC_HARDIRQS + depends on I2C=y select MFD_CORE select REGMAP_I2C - select IRQ_DOMAIN + select REGMAP_IRQ default n help Say yes here if you want support for Texas Instruments TWL6040 audio diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index a4093a4..05bebf6 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -67,7 +67,7 @@ obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o obj-$(CONFIG_TWL4030_MADC) += twl4030-madc.o obj-$(CONFIG_TWL4030_POWER) += twl4030-power.o obj-$(CONFIG_MFD_TWL4030_AUDIO) += twl4030-audio.o -obj-$(CONFIG_TWL6040_CORE) += twl6040-core.o twl6040-irq.o +obj-$(CONFIG_TWL6040_CORE) += twl6040-core.o obj-$(CONFIG_MFD_MC13XXX) += mc13xxx-core.o obj-$(CONFIG_MFD_MC13XXX_SPI) += mc13xxx-spi.o diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c index 5817bc6..e5f7b79 100644 --- a/drivers/mfd/twl6040-core.c +++ b/drivers/mfd/twl6040-core.c @@ -499,6 +499,25 @@ static struct regmap_config twl6040_regmap_config = { .readable_reg = twl6040_readable_reg, }; +static const struct regmap_irq twl6040_irqs[] = { + { .reg_offset = 0, .mask = TWL6040_THINT, }, + { .reg_offset = 0, .mask = TWL6040_PLUGINT | TWL6040_UNPLUGINT, }, + { .reg_offset = 0, .mask = TWL6040_HOOKINT, }, + { .reg_offset = 0, .mask = TWL6040_HFINT, }, + { .reg_offset = 0, .mask = TWL6040_VIBINT, }, + { .reg_offset = 0, .mask = TWL6040_READYINT, }, +}; + +static struct regmap_irq_chip twl6040_irq_chip = { + .name = "twl6040", + .irqs = twl6040_irqs, + .num_irqs = ARRAY_SIZE(twl6040_irqs), + + .num_regs = 1, + .status_base = TWL6040_REG_INTID, + .mask_base = TWL6040_REG_INTMR, +}; + static int __devinit twl6040_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -574,21 +593,27 @@ static int __devinit twl6040_probe(struct i2c_client *client, goto gpio_err; } - /* codec interrupt */ - ret = twl6040_irq_init(twl6040); - if (ret) + ret = regmap_add_irq_chip(twl6040->regmap, twl6040->irq, + IRQF_ONESHOT, 0, &twl6040_irq_chip, + &twl6040->irq_data); + if (ret < 0) goto irq_init_err; - ret = request_threaded_irq(twl6040->irq_base + TWL6040_IRQ_READY, - NULL, twl6040_readyint_handler, IRQF_ONESHOT, + twl6040->irq_ready = regmap_irq_get_virq(twl6040->irq_data, + TWL6040_IRQ_READY); + twl6040->irq_th = regmap_irq_get_virq(twl6040->irq_data, + TWL6040_IRQ_TH); + + ret = request_threaded_irq(twl6040->irq_ready, NULL, + twl6040_readyint_handler, IRQF_ONESHOT, "twl6040_irq_ready", twl6040); if (ret) { dev_err(twl6040->dev, "READY IRQ request failed: %d\n", ret); goto readyirq_err; } - ret = request_threaded_irq(twl6040->irq_base + TWL6040_IRQ_TH, - NULL, twl6040_thint_handler, IRQF_ONESHOT, + ret = request_threaded_irq(twl6040->irq_th, NULL, + twl6040_thint_handler, IRQF_ONESHOT, "twl6040_irq_th", twl6040); if (ret) { dev_err(twl6040->dev, "Thermal IRQ request failed: %d\n", ret); @@ -604,7 +629,7 @@ static int __devinit twl6040_probe(struct i2c_client *client, * The ASoC codec can work without pdata, pass the platform_data only if * it has been provided. */ - irq = twl6040->irq_base + TWL6040_IRQ_PLUG; + irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_PLUG); cell = &twl6040->cells[children]; cell->name = "twl6040-codec"; twl6040_codec_rsrc[0].start = irq; @@ -618,7 +643,7 @@ static int __devinit twl6040_probe(struct i2c_client *client, children++; if (twl6040_has_vibra(pdata, node)) { - irq = twl6040->irq_base + TWL6040_IRQ_VIB; + irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_VIB); cell = &twl6040->cells[children]; cell->name = "twl6040-vibra"; @@ -657,11 +682,11 @@ static int __devinit twl6040_probe(struct i2c_client *client, return 0; mfd_err: - free_irq(twl6040->irq_base + TWL6040_IRQ_TH, twl6040); + free_irq(twl6040->irq_th, twl6040); thirq_err: - free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040); + free_irq(twl6040->irq_ready, twl6040); readyirq_err: - twl6040_irq_exit(twl6040); + regmap_del_irq_chip(twl6040->irq, twl6040->irq_data); irq_init_err: if (gpio_is_valid(twl6040->audpwron)) gpio_free(twl6040->audpwron); @@ -685,9 +710,9 @@ static int __devexit twl6040_remove(struct i2c_client *client) if (gpio_is_valid(twl6040->audpwron)) gpio_free(twl6040->audpwron); - free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040); - free_irq(twl6040->irq_base + TWL6040_IRQ_TH, twl6040); - twl6040_irq_exit(twl6040); + free_irq(twl6040->irq_ready, twl6040); + free_irq(twl6040->irq_th, twl6040); + regmap_del_irq_chip(twl6040->irq, twl6040->irq_data); mfd_remove_devices(&client->dev); i2c_set_clientdata(client, NULL); diff --git a/drivers/mfd/twl6040-irq.c b/drivers/mfd/twl6040-irq.c deleted file mode 100644 index 4b42543..0000000 --- a/drivers/mfd/twl6040-irq.c +++ /dev/null @@ -1,205 +0,0 @@ -/* - * Interrupt controller support for TWL6040 - * - * Author: Misael Lopez Cruz - * - * Copyright: (C) 2011 Texas Instruments, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -struct twl6040_irq_data { - int mask; - int status; -}; - -static struct twl6040_irq_data twl6040_irqs[] = { - { - .mask = TWL6040_THMSK, - .status = TWL6040_THINT, - }, - { - .mask = TWL6040_PLUGMSK, - .status = TWL6040_PLUGINT | TWL6040_UNPLUGINT, - }, - { - .mask = TWL6040_HOOKMSK, - .status = TWL6040_HOOKINT, - }, - { - .mask = TWL6040_HFMSK, - .status = TWL6040_HFINT, - }, - { - .mask = TWL6040_VIBMSK, - .status = TWL6040_VIBINT, - }, - { - .mask = TWL6040_READYMSK, - .status = TWL6040_READYINT, - }, -}; - -static inline -struct twl6040_irq_data *irq_to_twl6040_irq(struct twl6040 *twl6040, - int irq) -{ - return &twl6040_irqs[irq - twl6040->irq_base]; -} - -static void twl6040_irq_lock(struct irq_data *data) -{ - struct twl6040 *twl6040 = irq_data_get_irq_chip_data(data); - - mutex_lock(&twl6040->irq_mutex); -} - -static void twl6040_irq_sync_unlock(struct irq_data *data) -{ - struct twl6040 *twl6040 = irq_data_get_irq_chip_data(data); - - /* write back to hardware any change in irq mask */ - if (twl6040->irq_masks_cur != twl6040->irq_masks_cache) { - twl6040->irq_masks_cache = twl6040->irq_masks_cur; - twl6040_reg_write(twl6040, TWL6040_REG_INTMR, - twl6040->irq_masks_cur); - } - - mutex_unlock(&twl6040->irq_mutex); -} - -static void twl6040_irq_enable(struct irq_data *data) -{ - struct twl6040 *twl6040 = irq_data_get_irq_chip_data(data); - struct twl6040_irq_data *irq_data = irq_to_twl6040_irq(twl6040, - data->irq); - - twl6040->irq_masks_cur &= ~irq_data->mask; -} - -static void twl6040_irq_disable(struct irq_data *data) -{ - struct twl6040 *twl6040 = irq_data_get_irq_chip_data(data); - struct twl6040_irq_data *irq_data = irq_to_twl6040_irq(twl6040, - data->irq); - - twl6040->irq_masks_cur |= irq_data->mask; -} - -static struct irq_chip twl6040_irq_chip = { - .name = "twl6040", - .irq_bus_lock = twl6040_irq_lock, - .irq_bus_sync_unlock = twl6040_irq_sync_unlock, - .irq_enable = twl6040_irq_enable, - .irq_disable = twl6040_irq_disable, -}; - -static irqreturn_t twl6040_irq_thread(int irq, void *data) -{ - struct twl6040 *twl6040 = data; - u8 intid; - int i; - - intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID); - - /* apply masking and report (backwards to handle READYINT first) */ - for (i = ARRAY_SIZE(twl6040_irqs) - 1; i >= 0; i--) { - if (twl6040->irq_masks_cur & twl6040_irqs[i].mask) - intid &= ~twl6040_irqs[i].status; - if (intid & twl6040_irqs[i].status) - handle_nested_irq(twl6040->irq_base + i); - } - - /* ack unmasked irqs */ - twl6040_reg_write(twl6040, TWL6040_REG_INTID, intid); - - return IRQ_HANDLED; -} - -int twl6040_irq_init(struct twl6040 *twl6040) -{ - struct device_node *node = twl6040->dev->of_node; - int i, nr_irqs, irq_base, ret; - u8 val; - - mutex_init(&twl6040->irq_mutex); - - /* mask the individual interrupt sources */ - twl6040->irq_masks_cur = TWL6040_ALLINT_MSK; - twl6040->irq_masks_cache = TWL6040_ALLINT_MSK; - twl6040_reg_write(twl6040, TWL6040_REG_INTMR, TWL6040_ALLINT_MSK); - - nr_irqs = ARRAY_SIZE(twl6040_irqs); - - irq_base = irq_alloc_descs(-1, 0, nr_irqs, 0); - if (IS_ERR_VALUE(irq_base)) { - dev_err(twl6040->dev, "Fail to allocate IRQ descs\n"); - return irq_base; - } - twl6040->irq_base = irq_base; - - irq_domain_add_legacy(node, ARRAY_SIZE(twl6040_irqs), irq_base, 0, - &irq_domain_simple_ops, NULL); - - /* Register them with genirq */ - for (i = irq_base; i < irq_base + nr_irqs; i++) { - irq_set_chip_data(i, twl6040); - irq_set_chip_and_handler(i, &twl6040_irq_chip, - handle_level_irq); - irq_set_nested_thread(i, 1); - - /* ARM needs us to explicitly flag the IRQ as valid - * and will set them noprobe when we do so. */ -#ifdef CONFIG_ARM - set_irq_flags(i, IRQF_VALID); -#else - irq_set_noprobe(i); -#endif - } - - ret = request_threaded_irq(twl6040->irq, NULL, twl6040_irq_thread, - IRQF_ONESHOT, "twl6040", twl6040); - if (ret) { - dev_err(twl6040->dev, "failed to request IRQ %d: %d\n", - twl6040->irq, ret); - return ret; - } - - /* reset interrupts */ - val = twl6040_reg_read(twl6040, TWL6040_REG_INTID); - - /* interrupts cleared on write */ - twl6040_clear_bits(twl6040, TWL6040_REG_ACCCTL, TWL6040_INTCLRMODE); - - return 0; -} -EXPORT_SYMBOL(twl6040_irq_init); - -void twl6040_irq_exit(struct twl6040 *twl6040) -{ - free_irq(twl6040->irq, twl6040); -} -EXPORT_SYMBOL(twl6040_irq_exit); -- cgit v1.1 From 210afeecd41b97db8ad096a778243cdcec9f1189 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 11 Oct 2012 13:55:33 +0200 Subject: mfd: twl6040: Rename the core driver After the regmap_irq conversion there is no need to call the driver as twl6040-core.c since there is only one c file remained. Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/Makefile | 2 +- drivers/mfd/twl6040-core.c | 749 --------------------------------------------- drivers/mfd/twl6040.c | 749 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 750 insertions(+), 750 deletions(-) delete mode 100644 drivers/mfd/twl6040-core.c create mode 100644 drivers/mfd/twl6040.c (limited to 'drivers/mfd') diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 05bebf6..8a68fc7 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -67,7 +67,7 @@ obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o obj-$(CONFIG_TWL4030_MADC) += twl4030-madc.o obj-$(CONFIG_TWL4030_POWER) += twl4030-power.o obj-$(CONFIG_MFD_TWL4030_AUDIO) += twl4030-audio.o -obj-$(CONFIG_TWL6040_CORE) += twl6040-core.o +obj-$(CONFIG_TWL6040_CORE) += twl6040.o obj-$(CONFIG_MFD_MC13XXX) += mc13xxx-core.o obj-$(CONFIG_MFD_MC13XXX_SPI) += mc13xxx-spi.o diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c deleted file mode 100644 index e5f7b79..0000000 --- a/drivers/mfd/twl6040-core.c +++ /dev/null @@ -1,749 +0,0 @@ -/* - * MFD driver for TWL6040 audio device - * - * Authors: Misael Lopez Cruz - * Jorge Eduardo Candelaria - * Peter Ujfalusi - * - * Copyright: (C) 2011 Texas Instruments, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define VIBRACTRL_MEMBER(reg) ((reg == TWL6040_REG_VIBCTLL) ? 0 : 1) -#define TWL6040_NUM_SUPPLIES (2) - -static bool twl6040_has_vibra(struct twl6040_platform_data *pdata, - struct device_node *node) -{ - if (pdata && pdata->vibra) - return true; - -#ifdef CONFIG_OF - if (of_find_node_by_name(node, "vibra")) - return true; -#endif - - return false; -} - -int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg) -{ - int ret; - unsigned int val; - - /* Vibra control registers from cache */ - if (unlikely(reg == TWL6040_REG_VIBCTLL || - reg == TWL6040_REG_VIBCTLR)) { - val = twl6040->vibra_ctrl_cache[VIBRACTRL_MEMBER(reg)]; - } else { - ret = regmap_read(twl6040->regmap, reg, &val); - if (ret < 0) - return ret; - } - - return val; -} -EXPORT_SYMBOL(twl6040_reg_read); - -int twl6040_reg_write(struct twl6040 *twl6040, unsigned int reg, u8 val) -{ - int ret; - - ret = regmap_write(twl6040->regmap, reg, val); - /* Cache the vibra control registers */ - if (reg == TWL6040_REG_VIBCTLL || reg == TWL6040_REG_VIBCTLR) - twl6040->vibra_ctrl_cache[VIBRACTRL_MEMBER(reg)] = val; - - return ret; -} -EXPORT_SYMBOL(twl6040_reg_write); - -int twl6040_set_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) -{ - return regmap_update_bits(twl6040->regmap, reg, mask, mask); -} -EXPORT_SYMBOL(twl6040_set_bits); - -int twl6040_clear_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) -{ - return regmap_update_bits(twl6040->regmap, reg, mask, 0); -} -EXPORT_SYMBOL(twl6040_clear_bits); - -/* twl6040 codec manual power-up sequence */ -static int twl6040_power_up_manual(struct twl6040 *twl6040) -{ - u8 ldoctl, ncpctl, lppllctl; - int ret; - - /* enable high-side LDO, reference system and internal oscillator */ - ldoctl = TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA; - ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); - if (ret) - return ret; - usleep_range(10000, 10500); - - /* enable negative charge pump */ - ncpctl = TWL6040_NCPENA; - ret = twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl); - if (ret) - goto ncp_err; - usleep_range(1000, 1500); - - /* enable low-side LDO */ - ldoctl |= TWL6040_LSLDOENA; - ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); - if (ret) - goto lsldo_err; - usleep_range(1000, 1500); - - /* enable low-power PLL */ - lppllctl = TWL6040_LPLLENA; - ret = twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); - if (ret) - goto lppll_err; - usleep_range(5000, 5500); - - /* disable internal oscillator */ - ldoctl &= ~TWL6040_OSCENA; - ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); - if (ret) - goto osc_err; - - return 0; - -osc_err: - lppllctl &= ~TWL6040_LPLLENA; - twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); -lppll_err: - ldoctl &= ~TWL6040_LSLDOENA; - twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); -lsldo_err: - ncpctl &= ~TWL6040_NCPENA; - twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl); -ncp_err: - ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA); - twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); - - dev_err(twl6040->dev, "manual power-up failed\n"); - return ret; -} - -/* twl6040 manual power-down sequence */ -static void twl6040_power_down_manual(struct twl6040 *twl6040) -{ - u8 ncpctl, ldoctl, lppllctl; - - ncpctl = twl6040_reg_read(twl6040, TWL6040_REG_NCPCTL); - ldoctl = twl6040_reg_read(twl6040, TWL6040_REG_LDOCTL); - lppllctl = twl6040_reg_read(twl6040, TWL6040_REG_LPPLLCTL); - - /* enable internal oscillator */ - ldoctl |= TWL6040_OSCENA; - twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); - usleep_range(1000, 1500); - - /* disable low-power PLL */ - lppllctl &= ~TWL6040_LPLLENA; - twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); - - /* disable low-side LDO */ - ldoctl &= ~TWL6040_LSLDOENA; - twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); - - /* disable negative charge pump */ - ncpctl &= ~TWL6040_NCPENA; - twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl); - - /* disable high-side LDO, reference system and internal oscillator */ - ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA); - twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); -} - -static irqreturn_t twl6040_readyint_handler(int irq, void *data) -{ - struct twl6040 *twl6040 = data; - - complete(&twl6040->ready); - - return IRQ_HANDLED; -} - -static irqreturn_t twl6040_thint_handler(int irq, void *data) -{ - struct twl6040 *twl6040 = data; - u8 status; - - status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS); - if (status & TWL6040_TSHUTDET) { - dev_warn(twl6040->dev, "Thermal shutdown, powering-off"); - twl6040_power(twl6040, 0); - } else { - dev_warn(twl6040->dev, "Leaving thermal shutdown, powering-on"); - twl6040_power(twl6040, 1); - } - - return IRQ_HANDLED; -} - -static int twl6040_power_up_automatic(struct twl6040 *twl6040) -{ - int time_left; - - gpio_set_value(twl6040->audpwron, 1); - - time_left = wait_for_completion_timeout(&twl6040->ready, - msecs_to_jiffies(144)); - if (!time_left) { - u8 intid; - - dev_warn(twl6040->dev, "timeout waiting for READYINT\n"); - intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID); - if (!(intid & TWL6040_READYINT)) { - dev_err(twl6040->dev, "automatic power-up failed\n"); - gpio_set_value(twl6040->audpwron, 0); - return -ETIMEDOUT; - } - } - - return 0; -} - -int twl6040_power(struct twl6040 *twl6040, int on) -{ - int ret = 0; - - mutex_lock(&twl6040->mutex); - - if (on) { - /* already powered-up */ - if (twl6040->power_count++) - goto out; - - if (gpio_is_valid(twl6040->audpwron)) { - /* use automatic power-up sequence */ - ret = twl6040_power_up_automatic(twl6040); - if (ret) { - twl6040->power_count = 0; - goto out; - } - } else { - /* use manual power-up sequence */ - ret = twl6040_power_up_manual(twl6040); - if (ret) { - twl6040->power_count = 0; - goto out; - } - } - /* Default PLL configuration after power up */ - twl6040->pll = TWL6040_SYSCLK_SEL_LPPLL; - twl6040->sysclk = 19200000; - twl6040->mclk = 32768; - } else { - /* already powered-down */ - if (!twl6040->power_count) { - dev_err(twl6040->dev, - "device is already powered-off\n"); - ret = -EPERM; - goto out; - } - - if (--twl6040->power_count) - goto out; - - if (gpio_is_valid(twl6040->audpwron)) { - /* use AUDPWRON line */ - gpio_set_value(twl6040->audpwron, 0); - - /* power-down sequence latency */ - usleep_range(500, 700); - } else { - /* use manual power-down sequence */ - twl6040_power_down_manual(twl6040); - } - twl6040->sysclk = 0; - twl6040->mclk = 0; - } - -out: - mutex_unlock(&twl6040->mutex); - return ret; -} -EXPORT_SYMBOL(twl6040_power); - -int twl6040_set_pll(struct twl6040 *twl6040, int pll_id, - unsigned int freq_in, unsigned int freq_out) -{ - u8 hppllctl, lppllctl; - int ret = 0; - - mutex_lock(&twl6040->mutex); - - hppllctl = twl6040_reg_read(twl6040, TWL6040_REG_HPPLLCTL); - lppllctl = twl6040_reg_read(twl6040, TWL6040_REG_LPPLLCTL); - - /* Force full reconfiguration when switching between PLL */ - if (pll_id != twl6040->pll) { - twl6040->sysclk = 0; - twl6040->mclk = 0; - } - - switch (pll_id) { - case TWL6040_SYSCLK_SEL_LPPLL: - /* low-power PLL divider */ - /* Change the sysclk configuration only if it has been canged */ - if (twl6040->sysclk != freq_out) { - switch (freq_out) { - case 17640000: - lppllctl |= TWL6040_LPLLFIN; - break; - case 19200000: - lppllctl &= ~TWL6040_LPLLFIN; - break; - default: - dev_err(twl6040->dev, - "freq_out %d not supported\n", - freq_out); - ret = -EINVAL; - goto pll_out; - } - twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, - lppllctl); - } - - /* The PLL in use has not been change, we can exit */ - if (twl6040->pll == pll_id) - break; - - switch (freq_in) { - case 32768: - lppllctl |= TWL6040_LPLLENA; - twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, - lppllctl); - mdelay(5); - lppllctl &= ~TWL6040_HPLLSEL; - twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, - lppllctl); - hppllctl &= ~TWL6040_HPLLENA; - twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL, - hppllctl); - break; - default: - dev_err(twl6040->dev, - "freq_in %d not supported\n", freq_in); - ret = -EINVAL; - goto pll_out; - } - break; - case TWL6040_SYSCLK_SEL_HPPLL: - /* high-performance PLL can provide only 19.2 MHz */ - if (freq_out != 19200000) { - dev_err(twl6040->dev, - "freq_out %d not supported\n", freq_out); - ret = -EINVAL; - goto pll_out; - } - - if (twl6040->mclk != freq_in) { - hppllctl &= ~TWL6040_MCLK_MSK; - - switch (freq_in) { - case 12000000: - /* PLL enabled, active mode */ - hppllctl |= TWL6040_MCLK_12000KHZ | - TWL6040_HPLLENA; - break; - case 19200000: - /* - * PLL disabled - * (enable PLL if MCLK jitter quality - * doesn't meet specification) - */ - hppllctl |= TWL6040_MCLK_19200KHZ; - break; - case 26000000: - /* PLL enabled, active mode */ - hppllctl |= TWL6040_MCLK_26000KHZ | - TWL6040_HPLLENA; - break; - case 38400000: - /* PLL enabled, active mode */ - hppllctl |= TWL6040_MCLK_38400KHZ | - TWL6040_HPLLENA; - break; - default: - dev_err(twl6040->dev, - "freq_in %d not supported\n", freq_in); - ret = -EINVAL; - goto pll_out; - } - - /* - * enable clock slicer to ensure input waveform is - * square - */ - hppllctl |= TWL6040_HPLLSQRENA; - - twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL, - hppllctl); - usleep_range(500, 700); - lppllctl |= TWL6040_HPLLSEL; - twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, - lppllctl); - lppllctl &= ~TWL6040_LPLLENA; - twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, - lppllctl); - } - break; - default: - dev_err(twl6040->dev, "unknown pll id %d\n", pll_id); - ret = -EINVAL; - goto pll_out; - } - - twl6040->sysclk = freq_out; - twl6040->mclk = freq_in; - twl6040->pll = pll_id; - -pll_out: - mutex_unlock(&twl6040->mutex); - return ret; -} -EXPORT_SYMBOL(twl6040_set_pll); - -int twl6040_get_pll(struct twl6040 *twl6040) -{ - if (twl6040->power_count) - return twl6040->pll; - else - return -ENODEV; -} -EXPORT_SYMBOL(twl6040_get_pll); - -unsigned int twl6040_get_sysclk(struct twl6040 *twl6040) -{ - return twl6040->sysclk; -} -EXPORT_SYMBOL(twl6040_get_sysclk); - -/* Get the combined status of the vibra control register */ -int twl6040_get_vibralr_status(struct twl6040 *twl6040) -{ - u8 status; - - status = twl6040->vibra_ctrl_cache[0] | twl6040->vibra_ctrl_cache[1]; - status &= (TWL6040_VIBENA | TWL6040_VIBSEL); - - return status; -} -EXPORT_SYMBOL(twl6040_get_vibralr_status); - -static struct resource twl6040_vibra_rsrc[] = { - { - .flags = IORESOURCE_IRQ, - }, -}; - -static struct resource twl6040_codec_rsrc[] = { - { - .flags = IORESOURCE_IRQ, - }, -}; - -static bool twl6040_readable_reg(struct device *dev, unsigned int reg) -{ - /* Register 0 is not readable */ - if (!reg) - return false; - return true; -} - -static struct regmap_config twl6040_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - .max_register = TWL6040_REG_STATUS, /* 0x2e */ - - .readable_reg = twl6040_readable_reg, -}; - -static const struct regmap_irq twl6040_irqs[] = { - { .reg_offset = 0, .mask = TWL6040_THINT, }, - { .reg_offset = 0, .mask = TWL6040_PLUGINT | TWL6040_UNPLUGINT, }, - { .reg_offset = 0, .mask = TWL6040_HOOKINT, }, - { .reg_offset = 0, .mask = TWL6040_HFINT, }, - { .reg_offset = 0, .mask = TWL6040_VIBINT, }, - { .reg_offset = 0, .mask = TWL6040_READYINT, }, -}; - -static struct regmap_irq_chip twl6040_irq_chip = { - .name = "twl6040", - .irqs = twl6040_irqs, - .num_irqs = ARRAY_SIZE(twl6040_irqs), - - .num_regs = 1, - .status_base = TWL6040_REG_INTID, - .mask_base = TWL6040_REG_INTMR, -}; - -static int __devinit twl6040_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct twl6040_platform_data *pdata = client->dev.platform_data; - struct device_node *node = client->dev.of_node; - struct twl6040 *twl6040; - struct mfd_cell *cell = NULL; - int irq, ret, children = 0; - - if (!pdata && !node) { - dev_err(&client->dev, "Platform data is missing\n"); - return -EINVAL; - } - - /* In order to operate correctly we need valid interrupt config */ - if (!client->irq) { - dev_err(&client->dev, "Invalid IRQ configuration\n"); - return -EINVAL; - } - - twl6040 = devm_kzalloc(&client->dev, sizeof(struct twl6040), - GFP_KERNEL); - if (!twl6040) { - ret = -ENOMEM; - goto err; - } - - twl6040->regmap = devm_regmap_init_i2c(client, &twl6040_regmap_config); - if (IS_ERR(twl6040->regmap)) { - ret = PTR_ERR(twl6040->regmap); - goto err; - } - - i2c_set_clientdata(client, twl6040); - - twl6040->supplies[0].supply = "vio"; - twl6040->supplies[1].supply = "v2v1"; - ret = regulator_bulk_get(&client->dev, TWL6040_NUM_SUPPLIES, - twl6040->supplies); - if (ret != 0) { - dev_err(&client->dev, "Failed to get supplies: %d\n", ret); - goto regulator_get_err; - } - - ret = regulator_bulk_enable(TWL6040_NUM_SUPPLIES, twl6040->supplies); - if (ret != 0) { - dev_err(&client->dev, "Failed to enable supplies: %d\n", ret); - goto power_err; - } - - twl6040->dev = &client->dev; - twl6040->irq = client->irq; - - mutex_init(&twl6040->mutex); - init_completion(&twl6040->ready); - - twl6040->rev = twl6040_reg_read(twl6040, TWL6040_REG_ASICREV); - - /* ERRATA: Automatic power-up is not possible in ES1.0 */ - if (twl6040_get_revid(twl6040) > TWL6040_REV_ES1_0) { - if (pdata) - twl6040->audpwron = pdata->audpwron_gpio; - else - twl6040->audpwron = of_get_named_gpio(node, - "ti,audpwron-gpio", 0); - } else - twl6040->audpwron = -EINVAL; - - if (gpio_is_valid(twl6040->audpwron)) { - ret = gpio_request_one(twl6040->audpwron, GPIOF_OUT_INIT_LOW, - "audpwron"); - if (ret) - goto gpio_err; - } - - ret = regmap_add_irq_chip(twl6040->regmap, twl6040->irq, - IRQF_ONESHOT, 0, &twl6040_irq_chip, - &twl6040->irq_data); - if (ret < 0) - goto irq_init_err; - - twl6040->irq_ready = regmap_irq_get_virq(twl6040->irq_data, - TWL6040_IRQ_READY); - twl6040->irq_th = regmap_irq_get_virq(twl6040->irq_data, - TWL6040_IRQ_TH); - - ret = request_threaded_irq(twl6040->irq_ready, NULL, - twl6040_readyint_handler, IRQF_ONESHOT, - "twl6040_irq_ready", twl6040); - if (ret) { - dev_err(twl6040->dev, "READY IRQ request failed: %d\n", ret); - goto readyirq_err; - } - - ret = request_threaded_irq(twl6040->irq_th, NULL, - twl6040_thint_handler, IRQF_ONESHOT, - "twl6040_irq_th", twl6040); - if (ret) { - dev_err(twl6040->dev, "Thermal IRQ request failed: %d\n", ret); - goto thirq_err; - } - - /* dual-access registers controlled by I2C only */ - twl6040_set_bits(twl6040, TWL6040_REG_ACCCTL, TWL6040_I2CSEL); - - /* - * The main functionality of twl6040 to provide audio on OMAP4+ systems. - * We can add the ASoC codec child whenever this driver has been loaded. - * The ASoC codec can work without pdata, pass the platform_data only if - * it has been provided. - */ - irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_PLUG); - cell = &twl6040->cells[children]; - cell->name = "twl6040-codec"; - twl6040_codec_rsrc[0].start = irq; - twl6040_codec_rsrc[0].end = irq; - cell->resources = twl6040_codec_rsrc; - cell->num_resources = ARRAY_SIZE(twl6040_codec_rsrc); - if (pdata && pdata->codec) { - cell->platform_data = pdata->codec; - cell->pdata_size = sizeof(*pdata->codec); - } - children++; - - if (twl6040_has_vibra(pdata, node)) { - irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_VIB); - - cell = &twl6040->cells[children]; - cell->name = "twl6040-vibra"; - twl6040_vibra_rsrc[0].start = irq; - twl6040_vibra_rsrc[0].end = irq; - cell->resources = twl6040_vibra_rsrc; - cell->num_resources = ARRAY_SIZE(twl6040_vibra_rsrc); - - if (pdata && pdata->vibra) { - cell->platform_data = pdata->vibra; - cell->pdata_size = sizeof(*pdata->vibra); - } - children++; - } - - /* - * Enable the GPO driver in the following cases: - * DT booted kernel or legacy boot with valid gpo platform_data - */ - if (!pdata || (pdata && pdata->gpo)) { - cell = &twl6040->cells[children]; - cell->name = "twl6040-gpo"; - - if (pdata) { - cell->platform_data = pdata->gpo; - cell->pdata_size = sizeof(*pdata->gpo); - } - children++; - } - - ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children, - NULL, 0, NULL); - if (ret) - goto mfd_err; - - return 0; - -mfd_err: - free_irq(twl6040->irq_th, twl6040); -thirq_err: - free_irq(twl6040->irq_ready, twl6040); -readyirq_err: - regmap_del_irq_chip(twl6040->irq, twl6040->irq_data); -irq_init_err: - if (gpio_is_valid(twl6040->audpwron)) - gpio_free(twl6040->audpwron); -gpio_err: - regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies); -power_err: - regulator_bulk_free(TWL6040_NUM_SUPPLIES, twl6040->supplies); -regulator_get_err: - i2c_set_clientdata(client, NULL); -err: - return ret; -} - -static int __devexit twl6040_remove(struct i2c_client *client) -{ - struct twl6040 *twl6040 = i2c_get_clientdata(client); - - if (twl6040->power_count) - twl6040_power(twl6040, 0); - - if (gpio_is_valid(twl6040->audpwron)) - gpio_free(twl6040->audpwron); - - free_irq(twl6040->irq_ready, twl6040); - free_irq(twl6040->irq_th, twl6040); - regmap_del_irq_chip(twl6040->irq, twl6040->irq_data); - - mfd_remove_devices(&client->dev); - i2c_set_clientdata(client, NULL); - - regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies); - regulator_bulk_free(TWL6040_NUM_SUPPLIES, twl6040->supplies); - - return 0; -} - -static const struct i2c_device_id twl6040_i2c_id[] = { - { "twl6040", 0, }, - { "twl6041", 0, }, - { }, -}; -MODULE_DEVICE_TABLE(i2c, twl6040_i2c_id); - -static struct i2c_driver twl6040_driver = { - .driver = { - .name = "twl6040", - .owner = THIS_MODULE, - }, - .probe = twl6040_probe, - .remove = __devexit_p(twl6040_remove), - .id_table = twl6040_i2c_id, -}; - -module_i2c_driver(twl6040_driver); - -MODULE_DESCRIPTION("TWL6040 MFD"); -MODULE_AUTHOR("Misael Lopez Cruz "); -MODULE_AUTHOR("Jorge Eduardo Candelaria "); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:twl6040"); diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c new file mode 100644 index 0000000..e5f7b79 --- /dev/null +++ b/drivers/mfd/twl6040.c @@ -0,0 +1,749 @@ +/* + * MFD driver for TWL6040 audio device + * + * Authors: Misael Lopez Cruz + * Jorge Eduardo Candelaria + * Peter Ujfalusi + * + * Copyright: (C) 2011 Texas Instruments, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define VIBRACTRL_MEMBER(reg) ((reg == TWL6040_REG_VIBCTLL) ? 0 : 1) +#define TWL6040_NUM_SUPPLIES (2) + +static bool twl6040_has_vibra(struct twl6040_platform_data *pdata, + struct device_node *node) +{ + if (pdata && pdata->vibra) + return true; + +#ifdef CONFIG_OF + if (of_find_node_by_name(node, "vibra")) + return true; +#endif + + return false; +} + +int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg) +{ + int ret; + unsigned int val; + + /* Vibra control registers from cache */ + if (unlikely(reg == TWL6040_REG_VIBCTLL || + reg == TWL6040_REG_VIBCTLR)) { + val = twl6040->vibra_ctrl_cache[VIBRACTRL_MEMBER(reg)]; + } else { + ret = regmap_read(twl6040->regmap, reg, &val); + if (ret < 0) + return ret; + } + + return val; +} +EXPORT_SYMBOL(twl6040_reg_read); + +int twl6040_reg_write(struct twl6040 *twl6040, unsigned int reg, u8 val) +{ + int ret; + + ret = regmap_write(twl6040->regmap, reg, val); + /* Cache the vibra control registers */ + if (reg == TWL6040_REG_VIBCTLL || reg == TWL6040_REG_VIBCTLR) + twl6040->vibra_ctrl_cache[VIBRACTRL_MEMBER(reg)] = val; + + return ret; +} +EXPORT_SYMBOL(twl6040_reg_write); + +int twl6040_set_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) +{ + return regmap_update_bits(twl6040->regmap, reg, mask, mask); +} +EXPORT_SYMBOL(twl6040_set_bits); + +int twl6040_clear_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) +{ + return regmap_update_bits(twl6040->regmap, reg, mask, 0); +} +EXPORT_SYMBOL(twl6040_clear_bits); + +/* twl6040 codec manual power-up sequence */ +static int twl6040_power_up_manual(struct twl6040 *twl6040) +{ + u8 ldoctl, ncpctl, lppllctl; + int ret; + + /* enable high-side LDO, reference system and internal oscillator */ + ldoctl = TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA; + ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); + if (ret) + return ret; + usleep_range(10000, 10500); + + /* enable negative charge pump */ + ncpctl = TWL6040_NCPENA; + ret = twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl); + if (ret) + goto ncp_err; + usleep_range(1000, 1500); + + /* enable low-side LDO */ + ldoctl |= TWL6040_LSLDOENA; + ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); + if (ret) + goto lsldo_err; + usleep_range(1000, 1500); + + /* enable low-power PLL */ + lppllctl = TWL6040_LPLLENA; + ret = twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); + if (ret) + goto lppll_err; + usleep_range(5000, 5500); + + /* disable internal oscillator */ + ldoctl &= ~TWL6040_OSCENA; + ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); + if (ret) + goto osc_err; + + return 0; + +osc_err: + lppllctl &= ~TWL6040_LPLLENA; + twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); +lppll_err: + ldoctl &= ~TWL6040_LSLDOENA; + twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); +lsldo_err: + ncpctl &= ~TWL6040_NCPENA; + twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl); +ncp_err: + ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA); + twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); + + dev_err(twl6040->dev, "manual power-up failed\n"); + return ret; +} + +/* twl6040 manual power-down sequence */ +static void twl6040_power_down_manual(struct twl6040 *twl6040) +{ + u8 ncpctl, ldoctl, lppllctl; + + ncpctl = twl6040_reg_read(twl6040, TWL6040_REG_NCPCTL); + ldoctl = twl6040_reg_read(twl6040, TWL6040_REG_LDOCTL); + lppllctl = twl6040_reg_read(twl6040, TWL6040_REG_LPPLLCTL); + + /* enable internal oscillator */ + ldoctl |= TWL6040_OSCENA; + twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); + usleep_range(1000, 1500); + + /* disable low-power PLL */ + lppllctl &= ~TWL6040_LPLLENA; + twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); + + /* disable low-side LDO */ + ldoctl &= ~TWL6040_LSLDOENA; + twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); + + /* disable negative charge pump */ + ncpctl &= ~TWL6040_NCPENA; + twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl); + + /* disable high-side LDO, reference system and internal oscillator */ + ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA); + twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); +} + +static irqreturn_t twl6040_readyint_handler(int irq, void *data) +{ + struct twl6040 *twl6040 = data; + + complete(&twl6040->ready); + + return IRQ_HANDLED; +} + +static irqreturn_t twl6040_thint_handler(int irq, void *data) +{ + struct twl6040 *twl6040 = data; + u8 status; + + status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS); + if (status & TWL6040_TSHUTDET) { + dev_warn(twl6040->dev, "Thermal shutdown, powering-off"); + twl6040_power(twl6040, 0); + } else { + dev_warn(twl6040->dev, "Leaving thermal shutdown, powering-on"); + twl6040_power(twl6040, 1); + } + + return IRQ_HANDLED; +} + +static int twl6040_power_up_automatic(struct twl6040 *twl6040) +{ + int time_left; + + gpio_set_value(twl6040->audpwron, 1); + + time_left = wait_for_completion_timeout(&twl6040->ready, + msecs_to_jiffies(144)); + if (!time_left) { + u8 intid; + + dev_warn(twl6040->dev, "timeout waiting for READYINT\n"); + intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID); + if (!(intid & TWL6040_READYINT)) { + dev_err(twl6040->dev, "automatic power-up failed\n"); + gpio_set_value(twl6040->audpwron, 0); + return -ETIMEDOUT; + } + } + + return 0; +} + +int twl6040_power(struct twl6040 *twl6040, int on) +{ + int ret = 0; + + mutex_lock(&twl6040->mutex); + + if (on) { + /* already powered-up */ + if (twl6040->power_count++) + goto out; + + if (gpio_is_valid(twl6040->audpwron)) { + /* use automatic power-up sequence */ + ret = twl6040_power_up_automatic(twl6040); + if (ret) { + twl6040->power_count = 0; + goto out; + } + } else { + /* use manual power-up sequence */ + ret = twl6040_power_up_manual(twl6040); + if (ret) { + twl6040->power_count = 0; + goto out; + } + } + /* Default PLL configuration after power up */ + twl6040->pll = TWL6040_SYSCLK_SEL_LPPLL; + twl6040->sysclk = 19200000; + twl6040->mclk = 32768; + } else { + /* already powered-down */ + if (!twl6040->power_count) { + dev_err(twl6040->dev, + "device is already powered-off\n"); + ret = -EPERM; + goto out; + } + + if (--twl6040->power_count) + goto out; + + if (gpio_is_valid(twl6040->audpwron)) { + /* use AUDPWRON line */ + gpio_set_value(twl6040->audpwron, 0); + + /* power-down sequence latency */ + usleep_range(500, 700); + } else { + /* use manual power-down sequence */ + twl6040_power_down_manual(twl6040); + } + twl6040->sysclk = 0; + twl6040->mclk = 0; + } + +out: + mutex_unlock(&twl6040->mutex); + return ret; +} +EXPORT_SYMBOL(twl6040_power); + +int twl6040_set_pll(struct twl6040 *twl6040, int pll_id, + unsigned int freq_in, unsigned int freq_out) +{ + u8 hppllctl, lppllctl; + int ret = 0; + + mutex_lock(&twl6040->mutex); + + hppllctl = twl6040_reg_read(twl6040, TWL6040_REG_HPPLLCTL); + lppllctl = twl6040_reg_read(twl6040, TWL6040_REG_LPPLLCTL); + + /* Force full reconfiguration when switching between PLL */ + if (pll_id != twl6040->pll) { + twl6040->sysclk = 0; + twl6040->mclk = 0; + } + + switch (pll_id) { + case TWL6040_SYSCLK_SEL_LPPLL: + /* low-power PLL divider */ + /* Change the sysclk configuration only if it has been canged */ + if (twl6040->sysclk != freq_out) { + switch (freq_out) { + case 17640000: + lppllctl |= TWL6040_LPLLFIN; + break; + case 19200000: + lppllctl &= ~TWL6040_LPLLFIN; + break; + default: + dev_err(twl6040->dev, + "freq_out %d not supported\n", + freq_out); + ret = -EINVAL; + goto pll_out; + } + twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, + lppllctl); + } + + /* The PLL in use has not been change, we can exit */ + if (twl6040->pll == pll_id) + break; + + switch (freq_in) { + case 32768: + lppllctl |= TWL6040_LPLLENA; + twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, + lppllctl); + mdelay(5); + lppllctl &= ~TWL6040_HPLLSEL; + twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, + lppllctl); + hppllctl &= ~TWL6040_HPLLENA; + twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL, + hppllctl); + break; + default: + dev_err(twl6040->dev, + "freq_in %d not supported\n", freq_in); + ret = -EINVAL; + goto pll_out; + } + break; + case TWL6040_SYSCLK_SEL_HPPLL: + /* high-performance PLL can provide only 19.2 MHz */ + if (freq_out != 19200000) { + dev_err(twl6040->dev, + "freq_out %d not supported\n", freq_out); + ret = -EINVAL; + goto pll_out; + } + + if (twl6040->mclk != freq_in) { + hppllctl &= ~TWL6040_MCLK_MSK; + + switch (freq_in) { + case 12000000: + /* PLL enabled, active mode */ + hppllctl |= TWL6040_MCLK_12000KHZ | + TWL6040_HPLLENA; + break; + case 19200000: + /* + * PLL disabled + * (enable PLL if MCLK jitter quality + * doesn't meet specification) + */ + hppllctl |= TWL6040_MCLK_19200KHZ; + break; + case 26000000: + /* PLL enabled, active mode */ + hppllctl |= TWL6040_MCLK_26000KHZ | + TWL6040_HPLLENA; + break; + case 38400000: + /* PLL enabled, active mode */ + hppllctl |= TWL6040_MCLK_38400KHZ | + TWL6040_HPLLENA; + break; + default: + dev_err(twl6040->dev, + "freq_in %d not supported\n", freq_in); + ret = -EINVAL; + goto pll_out; + } + + /* + * enable clock slicer to ensure input waveform is + * square + */ + hppllctl |= TWL6040_HPLLSQRENA; + + twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL, + hppllctl); + usleep_range(500, 700); + lppllctl |= TWL6040_HPLLSEL; + twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, + lppllctl); + lppllctl &= ~TWL6040_LPLLENA; + twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, + lppllctl); + } + break; + default: + dev_err(twl6040->dev, "unknown pll id %d\n", pll_id); + ret = -EINVAL; + goto pll_out; + } + + twl6040->sysclk = freq_out; + twl6040->mclk = freq_in; + twl6040->pll = pll_id; + +pll_out: + mutex_unlock(&twl6040->mutex); + return ret; +} +EXPORT_SYMBOL(twl6040_set_pll); + +int twl6040_get_pll(struct twl6040 *twl6040) +{ + if (twl6040->power_count) + return twl6040->pll; + else + return -ENODEV; +} +EXPORT_SYMBOL(twl6040_get_pll); + +unsigned int twl6040_get_sysclk(struct twl6040 *twl6040) +{ + return twl6040->sysclk; +} +EXPORT_SYMBOL(twl6040_get_sysclk); + +/* Get the combined status of the vibra control register */ +int twl6040_get_vibralr_status(struct twl6040 *twl6040) +{ + u8 status; + + status = twl6040->vibra_ctrl_cache[0] | twl6040->vibra_ctrl_cache[1]; + status &= (TWL6040_VIBENA | TWL6040_VIBSEL); + + return status; +} +EXPORT_SYMBOL(twl6040_get_vibralr_status); + +static struct resource twl6040_vibra_rsrc[] = { + { + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource twl6040_codec_rsrc[] = { + { + .flags = IORESOURCE_IRQ, + }, +}; + +static bool twl6040_readable_reg(struct device *dev, unsigned int reg) +{ + /* Register 0 is not readable */ + if (!reg) + return false; + return true; +} + +static struct regmap_config twl6040_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = TWL6040_REG_STATUS, /* 0x2e */ + + .readable_reg = twl6040_readable_reg, +}; + +static const struct regmap_irq twl6040_irqs[] = { + { .reg_offset = 0, .mask = TWL6040_THINT, }, + { .reg_offset = 0, .mask = TWL6040_PLUGINT | TWL6040_UNPLUGINT, }, + { .reg_offset = 0, .mask = TWL6040_HOOKINT, }, + { .reg_offset = 0, .mask = TWL6040_HFINT, }, + { .reg_offset = 0, .mask = TWL6040_VIBINT, }, + { .reg_offset = 0, .mask = TWL6040_READYINT, }, +}; + +static struct regmap_irq_chip twl6040_irq_chip = { + .name = "twl6040", + .irqs = twl6040_irqs, + .num_irqs = ARRAY_SIZE(twl6040_irqs), + + .num_regs = 1, + .status_base = TWL6040_REG_INTID, + .mask_base = TWL6040_REG_INTMR, +}; + +static int __devinit twl6040_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct twl6040_platform_data *pdata = client->dev.platform_data; + struct device_node *node = client->dev.of_node; + struct twl6040 *twl6040; + struct mfd_cell *cell = NULL; + int irq, ret, children = 0; + + if (!pdata && !node) { + dev_err(&client->dev, "Platform data is missing\n"); + return -EINVAL; + } + + /* In order to operate correctly we need valid interrupt config */ + if (!client->irq) { + dev_err(&client->dev, "Invalid IRQ configuration\n"); + return -EINVAL; + } + + twl6040 = devm_kzalloc(&client->dev, sizeof(struct twl6040), + GFP_KERNEL); + if (!twl6040) { + ret = -ENOMEM; + goto err; + } + + twl6040->regmap = devm_regmap_init_i2c(client, &twl6040_regmap_config); + if (IS_ERR(twl6040->regmap)) { + ret = PTR_ERR(twl6040->regmap); + goto err; + } + + i2c_set_clientdata(client, twl6040); + + twl6040->supplies[0].supply = "vio"; + twl6040->supplies[1].supply = "v2v1"; + ret = regulator_bulk_get(&client->dev, TWL6040_NUM_SUPPLIES, + twl6040->supplies); + if (ret != 0) { + dev_err(&client->dev, "Failed to get supplies: %d\n", ret); + goto regulator_get_err; + } + + ret = regulator_bulk_enable(TWL6040_NUM_SUPPLIES, twl6040->supplies); + if (ret != 0) { + dev_err(&client->dev, "Failed to enable supplies: %d\n", ret); + goto power_err; + } + + twl6040->dev = &client->dev; + twl6040->irq = client->irq; + + mutex_init(&twl6040->mutex); + init_completion(&twl6040->ready); + + twl6040->rev = twl6040_reg_read(twl6040, TWL6040_REG_ASICREV); + + /* ERRATA: Automatic power-up is not possible in ES1.0 */ + if (twl6040_get_revid(twl6040) > TWL6040_REV_ES1_0) { + if (pdata) + twl6040->audpwron = pdata->audpwron_gpio; + else + twl6040->audpwron = of_get_named_gpio(node, + "ti,audpwron-gpio", 0); + } else + twl6040->audpwron = -EINVAL; + + if (gpio_is_valid(twl6040->audpwron)) { + ret = gpio_request_one(twl6040->audpwron, GPIOF_OUT_INIT_LOW, + "audpwron"); + if (ret) + goto gpio_err; + } + + ret = regmap_add_irq_chip(twl6040->regmap, twl6040->irq, + IRQF_ONESHOT, 0, &twl6040_irq_chip, + &twl6040->irq_data); + if (ret < 0) + goto irq_init_err; + + twl6040->irq_ready = regmap_irq_get_virq(twl6040->irq_data, + TWL6040_IRQ_READY); + twl6040->irq_th = regmap_irq_get_virq(twl6040->irq_data, + TWL6040_IRQ_TH); + + ret = request_threaded_irq(twl6040->irq_ready, NULL, + twl6040_readyint_handler, IRQF_ONESHOT, + "twl6040_irq_ready", twl6040); + if (ret) { + dev_err(twl6040->dev, "READY IRQ request failed: %d\n", ret); + goto readyirq_err; + } + + ret = request_threaded_irq(twl6040->irq_th, NULL, + twl6040_thint_handler, IRQF_ONESHOT, + "twl6040_irq_th", twl6040); + if (ret) { + dev_err(twl6040->dev, "Thermal IRQ request failed: %d\n", ret); + goto thirq_err; + } + + /* dual-access registers controlled by I2C only */ + twl6040_set_bits(twl6040, TWL6040_REG_ACCCTL, TWL6040_I2CSEL); + + /* + * The main functionality of twl6040 to provide audio on OMAP4+ systems. + * We can add the ASoC codec child whenever this driver has been loaded. + * The ASoC codec can work without pdata, pass the platform_data only if + * it has been provided. + */ + irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_PLUG); + cell = &twl6040->cells[children]; + cell->name = "twl6040-codec"; + twl6040_codec_rsrc[0].start = irq; + twl6040_codec_rsrc[0].end = irq; + cell->resources = twl6040_codec_rsrc; + cell->num_resources = ARRAY_SIZE(twl6040_codec_rsrc); + if (pdata && pdata->codec) { + cell->platform_data = pdata->codec; + cell->pdata_size = sizeof(*pdata->codec); + } + children++; + + if (twl6040_has_vibra(pdata, node)) { + irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_VIB); + + cell = &twl6040->cells[children]; + cell->name = "twl6040-vibra"; + twl6040_vibra_rsrc[0].start = irq; + twl6040_vibra_rsrc[0].end = irq; + cell->resources = twl6040_vibra_rsrc; + cell->num_resources = ARRAY_SIZE(twl6040_vibra_rsrc); + + if (pdata && pdata->vibra) { + cell->platform_data = pdata->vibra; + cell->pdata_size = sizeof(*pdata->vibra); + } + children++; + } + + /* + * Enable the GPO driver in the following cases: + * DT booted kernel or legacy boot with valid gpo platform_data + */ + if (!pdata || (pdata && pdata->gpo)) { + cell = &twl6040->cells[children]; + cell->name = "twl6040-gpo"; + + if (pdata) { + cell->platform_data = pdata->gpo; + cell->pdata_size = sizeof(*pdata->gpo); + } + children++; + } + + ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children, + NULL, 0, NULL); + if (ret) + goto mfd_err; + + return 0; + +mfd_err: + free_irq(twl6040->irq_th, twl6040); +thirq_err: + free_irq(twl6040->irq_ready, twl6040); +readyirq_err: + regmap_del_irq_chip(twl6040->irq, twl6040->irq_data); +irq_init_err: + if (gpio_is_valid(twl6040->audpwron)) + gpio_free(twl6040->audpwron); +gpio_err: + regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies); +power_err: + regulator_bulk_free(TWL6040_NUM_SUPPLIES, twl6040->supplies); +regulator_get_err: + i2c_set_clientdata(client, NULL); +err: + return ret; +} + +static int __devexit twl6040_remove(struct i2c_client *client) +{ + struct twl6040 *twl6040 = i2c_get_clientdata(client); + + if (twl6040->power_count) + twl6040_power(twl6040, 0); + + if (gpio_is_valid(twl6040->audpwron)) + gpio_free(twl6040->audpwron); + + free_irq(twl6040->irq_ready, twl6040); + free_irq(twl6040->irq_th, twl6040); + regmap_del_irq_chip(twl6040->irq, twl6040->irq_data); + + mfd_remove_devices(&client->dev); + i2c_set_clientdata(client, NULL); + + regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies); + regulator_bulk_free(TWL6040_NUM_SUPPLIES, twl6040->supplies); + + return 0; +} + +static const struct i2c_device_id twl6040_i2c_id[] = { + { "twl6040", 0, }, + { "twl6041", 0, }, + { }, +}; +MODULE_DEVICE_TABLE(i2c, twl6040_i2c_id); + +static struct i2c_driver twl6040_driver = { + .driver = { + .name = "twl6040", + .owner = THIS_MODULE, + }, + .probe = twl6040_probe, + .remove = __devexit_p(twl6040_remove), + .id_table = twl6040_i2c_id, +}; + +module_i2c_driver(twl6040_driver); + +MODULE_DESCRIPTION("TWL6040 MFD"); +MODULE_AUTHOR("Misael Lopez Cruz "); +MODULE_AUTHOR("Jorge Eduardo Candelaria "); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:twl6040"); -- cgit v1.1 From 605511a848ae3ac4b2ce272ae6cbf8930b29ebb3 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 13 Nov 2012 19:18:05 +0530 Subject: mfd: Convert tps6586x to irq_domain Allocate the irq base if it base is not porvided i.e. in case of device tree invocation of this driver. Convert the tps6586x driver to irq domain, using a legacy IRQ mapping if an irq_base is specified in platform data or dynamically allocated and otherwise using a linear mapping. Signed-off-by: Laxman Dewangan Reviewed-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/tps6586x.c | 91 ++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 66 insertions(+), 25 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index 4674643..2cdf1e6 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -17,12 +17,14 @@ #include #include +#include #include #include #include #include #include #include +#include #include #include #include @@ -116,6 +118,7 @@ struct tps6586x { int irq_base; u32 irq_en; u8 mask_reg[5]; + struct irq_domain *irq_domain; }; static inline struct tps6586x *dev_to_tps6586x(struct device *dev) @@ -184,6 +187,14 @@ int tps6586x_update(struct device *dev, int reg, uint8_t val, uint8_t mask) } EXPORT_SYMBOL_GPL(tps6586x_update); +int tps6586x_irq_get_virq(struct device *dev, int irq) +{ + struct tps6586x *tps6586x = dev_to_tps6586x(dev); + + return irq_create_mapping(tps6586x->irq_domain, irq); +} +EXPORT_SYMBOL_GPL(tps6586x_irq_get_virq); + static int __remove_subdev(struct device *dev, void *unused) { platform_device_unregister(to_platform_device(dev)); @@ -205,7 +216,7 @@ static void tps6586x_irq_lock(struct irq_data *data) static void tps6586x_irq_enable(struct irq_data *irq_data) { struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data); - unsigned int __irq = irq_data->irq - tps6586x->irq_base; + unsigned int __irq = irq_data->hwirq; const struct tps6586x_irq_data *data = &tps6586x_irqs[__irq]; tps6586x->mask_reg[data->mask_reg] &= ~data->mask_mask; @@ -216,7 +227,7 @@ static void tps6586x_irq_disable(struct irq_data *irq_data) { struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data); - unsigned int __irq = irq_data->irq - tps6586x->irq_base; + unsigned int __irq = irq_data->hwirq; const struct tps6586x_irq_data *data = &tps6586x_irqs[__irq]; tps6586x->mask_reg[data->mask_reg] |= data->mask_mask; @@ -239,6 +250,39 @@ static void tps6586x_irq_sync_unlock(struct irq_data *data) mutex_unlock(&tps6586x->irq_lock); } +static struct irq_chip tps6586x_irq_chip = { + .name = "tps6586x", + .irq_bus_lock = tps6586x_irq_lock, + .irq_bus_sync_unlock = tps6586x_irq_sync_unlock, + .irq_disable = tps6586x_irq_disable, + .irq_enable = tps6586x_irq_enable, +}; + +static int tps6586x_irq_map(struct irq_domain *h, unsigned int virq, + irq_hw_number_t hw) +{ + struct tps6586x *tps6586x = h->host_data; + + irq_set_chip_data(virq, tps6586x); + irq_set_chip_and_handler(virq, &tps6586x_irq_chip, handle_simple_irq); + irq_set_nested_thread(virq, 1); + + /* ARM needs us to explicitly flag the IRQ as valid + * and will set them noprobe when we do so. */ +#ifdef CONFIG_ARM + set_irq_flags(virq, IRQF_VALID); +#else + irq_set_noprobe(virq); +#endif + + return 0; +} + +static struct irq_domain_ops tps6586x_domain_ops = { + .map = tps6586x_irq_map, + .xlate = irq_domain_xlate_twocell, +}; + static irqreturn_t tps6586x_irq(int irq, void *data) { struct tps6586x *tps6586x = data; @@ -259,7 +303,8 @@ static irqreturn_t tps6586x_irq(int irq, void *data) int i = __ffs(acks); if (tps6586x->irq_en & (1 << i)) - handle_nested_irq(tps6586x->irq_base + i); + handle_nested_irq( + irq_find_mapping(tps6586x->irq_domain, i)); acks &= ~(1 << i); } @@ -272,11 +317,8 @@ static int __devinit tps6586x_irq_init(struct tps6586x *tps6586x, int irq, { int i, ret; u8 tmp[4]; - - if (!irq_base) { - dev_warn(tps6586x->dev, "No interrupt support on IRQ base\n"); - return -EINVAL; - } + int new_irq_base; + int irq_num = ARRAY_SIZE(tps6586x_irqs); mutex_init(&tps6586x->irq_lock); for (i = 0; i < 5; i++) { @@ -286,25 +328,24 @@ static int __devinit tps6586x_irq_init(struct tps6586x *tps6586x, int irq, tps6586x_reads(tps6586x->dev, TPS6586X_INT_ACK1, sizeof(tmp), tmp); - tps6586x->irq_base = irq_base; - - tps6586x->irq_chip.name = "tps6586x"; - tps6586x->irq_chip.irq_enable = tps6586x_irq_enable; - tps6586x->irq_chip.irq_disable = tps6586x_irq_disable; - tps6586x->irq_chip.irq_bus_lock = tps6586x_irq_lock; - tps6586x->irq_chip.irq_bus_sync_unlock = tps6586x_irq_sync_unlock; - - for (i = 0; i < ARRAY_SIZE(tps6586x_irqs); i++) { - int __irq = i + tps6586x->irq_base; - irq_set_chip_data(__irq, tps6586x); - irq_set_chip_and_handler(__irq, &tps6586x->irq_chip, - handle_simple_irq); - irq_set_nested_thread(__irq, 1); -#ifdef CONFIG_ARM - set_irq_flags(__irq, IRQF_VALID); -#endif + if (irq_base > 0) { + new_irq_base = irq_alloc_descs(irq_base, 0, irq_num, -1); + if (new_irq_base < 0) { + dev_err(tps6586x->dev, + "Failed to alloc IRQs: %d\n", new_irq_base); + return new_irq_base; + } + } else { + new_irq_base = 0; } + tps6586x->irq_domain = irq_domain_add_simple(tps6586x->dev->of_node, + irq_num, new_irq_base, &tps6586x_domain_ops, + tps6586x); + if (!tps6586x->irq_domain) { + dev_err(tps6586x->dev, "Failed to create IRQ domain\n"); + return -ENOMEM; + } ret = request_threaded_irq(irq, NULL, tps6586x_irq, IRQF_ONESHOT, "tps6586x", tps6586x); -- cgit v1.1 From 5b8b1fe2da98dbc4a10b9ad6d0f9f84e2815d4e4 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 13 Nov 2012 19:18:06 +0530 Subject: mfd: Add irq io-resource for tps6586x rtc sub driver Add IRQ IORESOURCE for rtc sub driver of this device. The rtc driver can get the irq by calling platform_get_irq(). Signed-off-by: Laxman Dewangan Reviewed-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/tps6586x.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index 2cdf1e6..c11539a 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -96,12 +96,22 @@ static const struct tps6586x_irq_data tps6586x_irqs[] = { [TPS6586X_INT_RTC_ALM2] = TPS6586X_IRQ(TPS6586X_INT_MASK4, 1 << 1), }; +static struct resource tps6586x_rtc_resources[] = { + { + .start = TPS6586X_INT_RTC_ALM1, + .end = TPS6586X_INT_RTC_ALM1, + .flags = IORESOURCE_IRQ, + }, +}; + static struct mfd_cell tps6586x_cell[] = { { .name = "tps6586x-gpio", }, { .name = "tps6586x-rtc", + .num_resources = ARRAY_SIZE(tps6586x_rtc_resources), + .resources = &tps6586x_rtc_resources[0], }, { .name = "tps6586x-onkey", @@ -562,7 +572,7 @@ static int __devinit tps6586x_i2c_probe(struct i2c_client *client, ret = mfd_add_devices(tps6586x->dev, -1, tps6586x_cell, ARRAY_SIZE(tps6586x_cell), - NULL, 0, NULL); + NULL, 0, tps6586x->irq_domain); if (ret < 0) { dev_err(&client->dev, "mfd_add_devices failed: %d\n", ret); goto err_mfd_add; -- cgit v1.1 From 10ecb80e8cb450f5b10c9aff168842c9a3c949ef Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 13 Nov 2012 19:33:56 +0530 Subject: mfd: tps65910: Initialize mfd devices after all initialization done Add sub devices of tps65910 after all initialization like interrupt, clock etc. is done. This will make sure that require data gets initialized properly before sub devices probe's get called. Signed-off-by: Laxman Dewangan Reviewed-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/tps65910.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c index 0d79ce2..27fbbe5 100644 --- a/drivers/mfd/tps65910.c +++ b/drivers/mfd/tps65910.c @@ -279,14 +279,6 @@ static __devinit int tps65910_i2c_probe(struct i2c_client *i2c, return ret; } - ret = mfd_add_devices(tps65910->dev, -1, - tps65910s, ARRAY_SIZE(tps65910s), - NULL, 0, NULL); - if (ret < 0) { - dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret); - return ret; - } - init_data->irq = pmic_plat_data->irq; init_data->irq_base = pmic_plat_data->irq_base; @@ -299,6 +291,14 @@ static __devinit int tps65910_i2c_probe(struct i2c_client *i2c, pm_power_off = tps65910_power_off; } + ret = mfd_add_devices(tps65910->dev, -1, + tps65910s, ARRAY_SIZE(tps65910s), + NULL, 0, NULL); + if (ret < 0) { + dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret); + return ret; + } + return ret; } -- cgit v1.1 From 43c1af0f4861b721def8c67ed6af2a69a4efcca3 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 13 Nov 2012 19:33:57 +0530 Subject: mfd: tps65910: Use regmap irq framework for interrupt support Implement irq support of tps65910 with regmap irq framework in place of implementing locally. This reduces the code size significantly and easy to maintain. Signed-off-by: Laxman Dewangan Reviewed-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/tps65910-irq.c | 375 ++++++++++++++++++++++----------------------- 1 file changed, 179 insertions(+), 196 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps65910-irq.c b/drivers/mfd/tps65910-irq.c index 09aab3e4..554543a 100644 --- a/drivers/mfd/tps65910-irq.c +++ b/drivers/mfd/tps65910-irq.c @@ -24,171 +24,184 @@ #include #include -/* - * This is a threaded IRQ handler so can access I2C/SPI. Since all - * interrupts are clear on read the IRQ line will be reasserted and - * the physical IRQ will be handled again if another interrupt is - * asserted while we run - in the normal course of events this is a - * rare occurrence so we save I2C/SPI reads. We're also assuming that - * it's rare to get lots of interrupts firing simultaneously so try to - * minimise I/O. - */ -static irqreturn_t tps65910_irq(int irq, void *irq_data) -{ - struct tps65910 *tps65910 = irq_data; - unsigned int reg; - u32 irq_sts; - u32 irq_mask; - int i; - - tps65910_reg_read(tps65910, TPS65910_INT_STS, ®); - irq_sts = reg; - tps65910_reg_read(tps65910, TPS65910_INT_STS2, ®); - irq_sts |= reg << 8; - switch (tps65910_chip_id(tps65910)) { - case TPS65911: - tps65910_reg_read(tps65910, TPS65910_INT_STS3, ®); - irq_sts |= reg << 16; - } - - tps65910_reg_read(tps65910, TPS65910_INT_MSK, ®); - irq_mask = reg; - tps65910_reg_read(tps65910, TPS65910_INT_MSK2, ®); - irq_mask |= reg << 8; - switch (tps65910_chip_id(tps65910)) { - case TPS65911: - tps65910_reg_read(tps65910, TPS65910_INT_MSK3, ®); - irq_mask |= reg << 16; - } - - irq_sts &= ~irq_mask; - - if (!irq_sts) - return IRQ_NONE; - - for (i = 0; i < tps65910->irq_num; i++) { - - if (!(irq_sts & (1 << i))) - continue; - - handle_nested_irq(irq_find_mapping(tps65910->domain, i)); - } - - /* Write the STS register back to clear IRQs we handled */ - reg = irq_sts & 0xFF; - irq_sts >>= 8; - tps65910_reg_write(tps65910, TPS65910_INT_STS, reg); - reg = irq_sts & 0xFF; - tps65910_reg_write(tps65910, TPS65910_INT_STS2, reg); - switch (tps65910_chip_id(tps65910)) { - case TPS65911: - reg = irq_sts >> 8; - tps65910_reg_write(tps65910, TPS65910_INT_STS3, reg); - } - - return IRQ_HANDLED; -} - -static void tps65910_irq_lock(struct irq_data *data) -{ - struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data); - - mutex_lock(&tps65910->irq_lock); -} - -static void tps65910_irq_sync_unlock(struct irq_data *data) -{ - struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data); - u32 reg_mask; - unsigned int reg; - - tps65910_reg_read(tps65910, TPS65910_INT_MSK, ®); - reg_mask = reg; - tps65910_reg_read(tps65910, TPS65910_INT_MSK2, ®); - reg_mask |= reg << 8; - switch (tps65910_chip_id(tps65910)) { - case TPS65911: - tps65910_reg_read(tps65910, TPS65910_INT_MSK3, ®); - reg_mask |= reg << 16; - } - if (tps65910->irq_mask != reg_mask) { - reg = tps65910->irq_mask & 0xFF; - tps65910_reg_write(tps65910, TPS65910_INT_MSK, reg); - reg = tps65910->irq_mask >> 8 & 0xFF; - tps65910_reg_write(tps65910, TPS65910_INT_MSK2, reg); - switch (tps65910_chip_id(tps65910)) { - case TPS65911: - reg = tps65910->irq_mask >> 16; - tps65910_reg_write(tps65910, TPS65910_INT_MSK3, reg); - } - } - mutex_unlock(&tps65910->irq_lock); -} - -static void tps65910_irq_enable(struct irq_data *data) -{ - struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data); - - tps65910->irq_mask &= ~(1 << data->hwirq); -} - -static void tps65910_irq_disable(struct irq_data *data) -{ - struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data); - - tps65910->irq_mask |= (1 << data->hwirq); -} +static const struct regmap_irq tps65911_irqs[] = { + /* INT_STS */ + [TPS65911_IRQ_PWRHOLD_F] = { + .mask = INT_MSK_PWRHOLD_F_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_VBAT_VMHI] = { + .mask = INT_MSK_VMBHI_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_PWRON] = { + .mask = INT_MSK_PWRON_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_PWRON_LP] = { + .mask = INT_MSK_PWRON_LP_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_PWRHOLD_R] = { + .mask = INT_MSK_PWRHOLD_R_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_HOTDIE] = { + .mask = INT_MSK_HOTDIE_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_RTC_ALARM] = { + .mask = INT_MSK_RTC_ALARM_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_RTC_PERIOD] = { + .mask = INT_MSK_RTC_PERIOD_IT_MSK_MASK, + .reg_offset = 0, + }, + + /* INT_STS2 */ + [TPS65911_IRQ_GPIO0_R] = { + .mask = INT_MSK2_GPIO0_R_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO0_F] = { + .mask = INT_MSK2_GPIO0_F_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO1_R] = { + .mask = INT_MSK2_GPIO1_R_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO1_F] = { + .mask = INT_MSK2_GPIO1_F_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO2_R] = { + .mask = INT_MSK2_GPIO2_R_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO2_F] = { + .mask = INT_MSK2_GPIO2_F_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO3_R] = { + .mask = INT_MSK2_GPIO3_R_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO3_F] = { + .mask = INT_MSK2_GPIO3_F_IT_MSK_MASK, + .reg_offset = 1, + }, + + /* INT_STS3 */ + [TPS65911_IRQ_GPIO4_R] = { + .mask = INT_MSK3_GPIO4_R_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_GPIO4_F] = { + .mask = INT_MSK3_GPIO4_F_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_GPIO5_R] = { + .mask = INT_MSK3_GPIO5_R_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_GPIO5_F] = { + .mask = INT_MSK3_GPIO5_F_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_WTCHDG] = { + .mask = INT_MSK3_WTCHDG_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_VMBCH2_H] = { + .mask = INT_MSK3_VMBCH2_H_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_VMBCH2_L] = { + .mask = INT_MSK3_VMBCH2_L_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_PWRDN] = { + .mask = INT_MSK3_PWRDN_IT_MSK_MASK, + .reg_offset = 2, + }, +}; -#ifdef CONFIG_PM_SLEEP -static int tps65910_irq_set_wake(struct irq_data *data, unsigned int enable) -{ - struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data); - return irq_set_irq_wake(tps65910->chip_irq, enable); -} -#else -#define tps65910_irq_set_wake NULL -#endif +static const struct regmap_irq tps65910_irqs[] = { + /* INT_STS */ + [TPS65910_IRQ_VBAT_VMBDCH] = { + .mask = TPS65910_INT_MSK_VMBDCH_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_VBAT_VMHI] = { + .mask = TPS65910_INT_MSK_VMBHI_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_PWRON] = { + .mask = TPS65910_INT_MSK_PWRON_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_PWRON_LP] = { + .mask = TPS65910_INT_MSK_PWRON_LP_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_PWRHOLD] = { + .mask = TPS65910_INT_MSK_PWRHOLD_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_HOTDIE] = { + .mask = TPS65910_INT_MSK_HOTDIE_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_RTC_ALARM] = { + .mask = TPS65910_INT_MSK_RTC_ALARM_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_RTC_PERIOD] = { + .mask = TPS65910_INT_MSK_RTC_PERIOD_IT_MSK_MASK, + .reg_offset = 0, + }, + + /* INT_STS2 */ + [TPS65910_IRQ_GPIO_R] = { + .mask = TPS65910_INT_MSK2_GPIO0_F_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65910_IRQ_GPIO_F] = { + .mask = TPS65910_INT_MSK2_GPIO0_R_IT_MSK_MASK, + .reg_offset = 1, + }, +}; -static struct irq_chip tps65910_irq_chip = { +static struct regmap_irq_chip tps65911_irq_chip = { .name = "tps65910", - .irq_bus_lock = tps65910_irq_lock, - .irq_bus_sync_unlock = tps65910_irq_sync_unlock, - .irq_disable = tps65910_irq_disable, - .irq_enable = tps65910_irq_enable, - .irq_set_wake = tps65910_irq_set_wake, + .irqs = tps65911_irqs, + .num_irqs = ARRAY_SIZE(tps65911_irqs), + .num_regs = 3, + .irq_reg_stride = 2, + .status_base = TPS65910_INT_STS, + .mask_base = TPS65910_INT_MSK, + .ack_base = TPS65910_INT_MSK, }; -static int tps65910_irq_map(struct irq_domain *h, unsigned int virq, - irq_hw_number_t hw) -{ - struct tps65910 *tps65910 = h->host_data; - - irq_set_chip_data(virq, tps65910); - irq_set_chip_and_handler(virq, &tps65910_irq_chip, handle_edge_irq); - irq_set_nested_thread(virq, 1); - - /* ARM needs us to explicitly flag the IRQ as valid - * and will set them noprobe when we do so. */ -#ifdef CONFIG_ARM - set_irq_flags(virq, IRQF_VALID); -#else - irq_set_noprobe(virq); -#endif - - return 0; -} - -static struct irq_domain_ops tps65910_domain_ops = { - .map = tps65910_irq_map, - .xlate = irq_domain_xlate_twocell, +static struct regmap_irq_chip tps65910_irq_chip = { + .name = "tps65910", + .irqs = tps65910_irqs, + .num_irqs = ARRAY_SIZE(tps65910_irqs), + .num_regs = 2, + .irq_reg_stride = 2, + .status_base = TPS65910_INT_STS, + .mask_base = TPS65910_INT_MSK, + .ack_base = TPS65910_INT_MSK, }; int tps65910_irq_init(struct tps65910 *tps65910, int irq, struct tps65910_platform_data *pdata) { - int ret; - int flags = IRQF_ONESHOT; + int ret = 0; + static struct regmap_irq_chip *tps6591x_irqs_chip; if (!irq) { dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n"); @@ -200,61 +213,31 @@ int tps65910_irq_init(struct tps65910 *tps65910, int irq, return -EINVAL; } + switch (tps65910_chip_id(tps65910)) { case TPS65910: - tps65910->irq_num = TPS65910_NUM_IRQ; + tps6591x_irqs_chip = &tps65910_irq_chip; break; case TPS65911: - tps65910->irq_num = TPS65911_NUM_IRQ; + tps6591x_irqs_chip = &tps65911_irq_chip; break; } - if (pdata->irq_base > 0) { - pdata->irq_base = irq_alloc_descs(pdata->irq_base, 0, - tps65910->irq_num, -1); - if (pdata->irq_base < 0) { - dev_warn(tps65910->dev, "Failed to alloc IRQs: %d\n", - pdata->irq_base); - return pdata->irq_base; - } - } - - tps65910->irq_mask = 0xFFFFFF; - - mutex_init(&tps65910->irq_lock); tps65910->chip_irq = irq; - tps65910->irq_base = pdata->irq_base; - - if (pdata->irq_base > 0) - tps65910->domain = irq_domain_add_legacy(tps65910->dev->of_node, - tps65910->irq_num, - pdata->irq_base, - 0, - &tps65910_domain_ops, tps65910); - else - tps65910->domain = irq_domain_add_linear(tps65910->dev->of_node, - tps65910->irq_num, - &tps65910_domain_ops, tps65910); - - if (!tps65910->domain) { - dev_err(tps65910->dev, "Failed to create IRQ domain\n"); - return -ENOMEM; + ret = regmap_add_irq_chip(tps65910->regmap, tps65910->chip_irq, + IRQF_ONESHOT, pdata->irq_base, + tps6591x_irqs_chip, &tps65910->irq_data); + if (ret < 0) { + dev_warn(tps65910->dev, + "Failed to add irq_chip %d\n", ret); + return ret; } - - ret = request_threaded_irq(irq, NULL, tps65910_irq, flags, - "tps65910", tps65910); - - irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW); - - if (ret != 0) - dev_err(tps65910->dev, "Failed to request IRQ: %d\n", ret); - return ret; } int tps65910_irq_exit(struct tps65910 *tps65910) { - if (tps65910->chip_irq) - free_irq(tps65910->chip_irq, tps65910); + if (tps65910->chip_irq > 0) + regmap_del_irq_chip(tps65910->chip_irq, tps65910->irq_data); return 0; } -- cgit v1.1 From 4aab3fadad32ff4df05832beff7c16fd6ad938aa Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 13 Nov 2012 19:33:58 +0530 Subject: mfd: tps65910: Move interrupt implementation code to mfd file In place of implementing the irq support in separate file, moving implementation to main mfd file. The irq files only contains the table and init steps only and does not need extra file to have this only for this purpose. Signed-off-by: Laxman Dewangan Reviewed-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/Makefile | 2 +- drivers/mfd/tps65910-irq.c | 243 --------------------------------------------- drivers/mfd/tps65910.c | 216 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 217 insertions(+), 244 deletions(-) delete mode 100644 drivers/mfd/tps65910-irq.c (limited to 'drivers/mfd') diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 8a68fc7..a30c49e 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -56,7 +56,7 @@ obj-$(CONFIG_TPS6105X) += tps6105x.o obj-$(CONFIG_TPS65010) += tps65010.o obj-$(CONFIG_TPS6507X) += tps6507x.o obj-$(CONFIG_MFD_TPS65217) += tps65217.o -obj-$(CONFIG_MFD_TPS65910) += tps65910.o tps65910-irq.o +obj-$(CONFIG_MFD_TPS65910) += tps65910.o tps65912-objs := tps65912-core.o tps65912-irq.o obj-$(CONFIG_MFD_TPS65912) += tps65912.o obj-$(CONFIG_MFD_TPS65912_I2C) += tps65912-i2c.o diff --git a/drivers/mfd/tps65910-irq.c b/drivers/mfd/tps65910-irq.c deleted file mode 100644 index 554543a..0000000 --- a/drivers/mfd/tps65910-irq.c +++ /dev/null @@ -1,243 +0,0 @@ -/* - * tps65910-irq.c -- TI TPS6591x - * - * Copyright 2010 Texas Instruments Inc. - * - * Author: Graeme Gregory - * Author: Jorge Eduardo Candelaria - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - - -static const struct regmap_irq tps65911_irqs[] = { - /* INT_STS */ - [TPS65911_IRQ_PWRHOLD_F] = { - .mask = INT_MSK_PWRHOLD_F_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65911_IRQ_VBAT_VMHI] = { - .mask = INT_MSK_VMBHI_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65911_IRQ_PWRON] = { - .mask = INT_MSK_PWRON_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65911_IRQ_PWRON_LP] = { - .mask = INT_MSK_PWRON_LP_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65911_IRQ_PWRHOLD_R] = { - .mask = INT_MSK_PWRHOLD_R_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65911_IRQ_HOTDIE] = { - .mask = INT_MSK_HOTDIE_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65911_IRQ_RTC_ALARM] = { - .mask = INT_MSK_RTC_ALARM_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65911_IRQ_RTC_PERIOD] = { - .mask = INT_MSK_RTC_PERIOD_IT_MSK_MASK, - .reg_offset = 0, - }, - - /* INT_STS2 */ - [TPS65911_IRQ_GPIO0_R] = { - .mask = INT_MSK2_GPIO0_R_IT_MSK_MASK, - .reg_offset = 1, - }, - [TPS65911_IRQ_GPIO0_F] = { - .mask = INT_MSK2_GPIO0_F_IT_MSK_MASK, - .reg_offset = 1, - }, - [TPS65911_IRQ_GPIO1_R] = { - .mask = INT_MSK2_GPIO1_R_IT_MSK_MASK, - .reg_offset = 1, - }, - [TPS65911_IRQ_GPIO1_F] = { - .mask = INT_MSK2_GPIO1_F_IT_MSK_MASK, - .reg_offset = 1, - }, - [TPS65911_IRQ_GPIO2_R] = { - .mask = INT_MSK2_GPIO2_R_IT_MSK_MASK, - .reg_offset = 1, - }, - [TPS65911_IRQ_GPIO2_F] = { - .mask = INT_MSK2_GPIO2_F_IT_MSK_MASK, - .reg_offset = 1, - }, - [TPS65911_IRQ_GPIO3_R] = { - .mask = INT_MSK2_GPIO3_R_IT_MSK_MASK, - .reg_offset = 1, - }, - [TPS65911_IRQ_GPIO3_F] = { - .mask = INT_MSK2_GPIO3_F_IT_MSK_MASK, - .reg_offset = 1, - }, - - /* INT_STS3 */ - [TPS65911_IRQ_GPIO4_R] = { - .mask = INT_MSK3_GPIO4_R_IT_MSK_MASK, - .reg_offset = 2, - }, - [TPS65911_IRQ_GPIO4_F] = { - .mask = INT_MSK3_GPIO4_F_IT_MSK_MASK, - .reg_offset = 2, - }, - [TPS65911_IRQ_GPIO5_R] = { - .mask = INT_MSK3_GPIO5_R_IT_MSK_MASK, - .reg_offset = 2, - }, - [TPS65911_IRQ_GPIO5_F] = { - .mask = INT_MSK3_GPIO5_F_IT_MSK_MASK, - .reg_offset = 2, - }, - [TPS65911_IRQ_WTCHDG] = { - .mask = INT_MSK3_WTCHDG_IT_MSK_MASK, - .reg_offset = 2, - }, - [TPS65911_IRQ_VMBCH2_H] = { - .mask = INT_MSK3_VMBCH2_H_IT_MSK_MASK, - .reg_offset = 2, - }, - [TPS65911_IRQ_VMBCH2_L] = { - .mask = INT_MSK3_VMBCH2_L_IT_MSK_MASK, - .reg_offset = 2, - }, - [TPS65911_IRQ_PWRDN] = { - .mask = INT_MSK3_PWRDN_IT_MSK_MASK, - .reg_offset = 2, - }, -}; - -static const struct regmap_irq tps65910_irqs[] = { - /* INT_STS */ - [TPS65910_IRQ_VBAT_VMBDCH] = { - .mask = TPS65910_INT_MSK_VMBDCH_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65910_IRQ_VBAT_VMHI] = { - .mask = TPS65910_INT_MSK_VMBHI_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65910_IRQ_PWRON] = { - .mask = TPS65910_INT_MSK_PWRON_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65910_IRQ_PWRON_LP] = { - .mask = TPS65910_INT_MSK_PWRON_LP_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65910_IRQ_PWRHOLD] = { - .mask = TPS65910_INT_MSK_PWRHOLD_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65910_IRQ_HOTDIE] = { - .mask = TPS65910_INT_MSK_HOTDIE_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65910_IRQ_RTC_ALARM] = { - .mask = TPS65910_INT_MSK_RTC_ALARM_IT_MSK_MASK, - .reg_offset = 0, - }, - [TPS65910_IRQ_RTC_PERIOD] = { - .mask = TPS65910_INT_MSK_RTC_PERIOD_IT_MSK_MASK, - .reg_offset = 0, - }, - - /* INT_STS2 */ - [TPS65910_IRQ_GPIO_R] = { - .mask = TPS65910_INT_MSK2_GPIO0_F_IT_MSK_MASK, - .reg_offset = 1, - }, - [TPS65910_IRQ_GPIO_F] = { - .mask = TPS65910_INT_MSK2_GPIO0_R_IT_MSK_MASK, - .reg_offset = 1, - }, -}; - -static struct regmap_irq_chip tps65911_irq_chip = { - .name = "tps65910", - .irqs = tps65911_irqs, - .num_irqs = ARRAY_SIZE(tps65911_irqs), - .num_regs = 3, - .irq_reg_stride = 2, - .status_base = TPS65910_INT_STS, - .mask_base = TPS65910_INT_MSK, - .ack_base = TPS65910_INT_MSK, -}; - -static struct regmap_irq_chip tps65910_irq_chip = { - .name = "tps65910", - .irqs = tps65910_irqs, - .num_irqs = ARRAY_SIZE(tps65910_irqs), - .num_regs = 2, - .irq_reg_stride = 2, - .status_base = TPS65910_INT_STS, - .mask_base = TPS65910_INT_MSK, - .ack_base = TPS65910_INT_MSK, -}; - -int tps65910_irq_init(struct tps65910 *tps65910, int irq, - struct tps65910_platform_data *pdata) -{ - int ret = 0; - static struct regmap_irq_chip *tps6591x_irqs_chip; - - if (!irq) { - dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n"); - return -EINVAL; - } - - if (!pdata) { - dev_warn(tps65910->dev, "No interrupt support, no pdata\n"); - return -EINVAL; - } - - - switch (tps65910_chip_id(tps65910)) { - case TPS65910: - tps6591x_irqs_chip = &tps65910_irq_chip; - break; - case TPS65911: - tps6591x_irqs_chip = &tps65911_irq_chip; - break; - } - - tps65910->chip_irq = irq; - ret = regmap_add_irq_chip(tps65910->regmap, tps65910->chip_irq, - IRQF_ONESHOT, pdata->irq_base, - tps6591x_irqs_chip, &tps65910->irq_data); - if (ret < 0) { - dev_warn(tps65910->dev, - "Failed to add irq_chip %d\n", ret); - return ret; - } - return ret; -} - -int tps65910_irq_exit(struct tps65910 *tps65910) -{ - if (tps65910->chip_irq > 0) - regmap_del_irq_chip(tps65910->chip_irq, tps65910->irq_data); - return 0; -} diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c index 27fbbe5..d4d4eb5 100644 --- a/drivers/mfd/tps65910.c +++ b/drivers/mfd/tps65910.c @@ -19,6 +19,9 @@ #include #include #include +#include +#include +#include #include #include #include @@ -50,6 +53,219 @@ static struct mfd_cell tps65910s[] = { }; +static const struct regmap_irq tps65911_irqs[] = { + /* INT_STS */ + [TPS65911_IRQ_PWRHOLD_F] = { + .mask = INT_MSK_PWRHOLD_F_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_VBAT_VMHI] = { + .mask = INT_MSK_VMBHI_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_PWRON] = { + .mask = INT_MSK_PWRON_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_PWRON_LP] = { + .mask = INT_MSK_PWRON_LP_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_PWRHOLD_R] = { + .mask = INT_MSK_PWRHOLD_R_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_HOTDIE] = { + .mask = INT_MSK_HOTDIE_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_RTC_ALARM] = { + .mask = INT_MSK_RTC_ALARM_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_RTC_PERIOD] = { + .mask = INT_MSK_RTC_PERIOD_IT_MSK_MASK, + .reg_offset = 0, + }, + + /* INT_STS2 */ + [TPS65911_IRQ_GPIO0_R] = { + .mask = INT_MSK2_GPIO0_R_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO0_F] = { + .mask = INT_MSK2_GPIO0_F_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO1_R] = { + .mask = INT_MSK2_GPIO1_R_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO1_F] = { + .mask = INT_MSK2_GPIO1_F_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO2_R] = { + .mask = INT_MSK2_GPIO2_R_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO2_F] = { + .mask = INT_MSK2_GPIO2_F_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO3_R] = { + .mask = INT_MSK2_GPIO3_R_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO3_F] = { + .mask = INT_MSK2_GPIO3_F_IT_MSK_MASK, + .reg_offset = 1, + }, + + /* INT_STS2 */ + [TPS65911_IRQ_GPIO4_R] = { + .mask = INT_MSK3_GPIO4_R_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_GPIO4_F] = { + .mask = INT_MSK3_GPIO4_F_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_GPIO5_R] = { + .mask = INT_MSK3_GPIO5_R_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_GPIO5_F] = { + .mask = INT_MSK3_GPIO5_F_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_WTCHDG] = { + .mask = INT_MSK3_WTCHDG_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_VMBCH2_H] = { + .mask = INT_MSK3_VMBCH2_H_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_VMBCH2_L] = { + .mask = INT_MSK3_VMBCH2_L_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_PWRDN] = { + .mask = INT_MSK3_PWRDN_IT_MSK_MASK, + .reg_offset = 2, + }, +}; + +static const struct regmap_irq tps65910_irqs[] = { + /* INT_STS */ + [TPS65910_IRQ_VBAT_VMBDCH] = { + .mask = TPS65910_INT_MSK_VMBDCH_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_VBAT_VMHI] = { + .mask = TPS65910_INT_MSK_VMBHI_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_PWRON] = { + .mask = TPS65910_INT_MSK_PWRON_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_PWRON_LP] = { + .mask = TPS65910_INT_MSK_PWRON_LP_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_PWRHOLD] = { + .mask = TPS65910_INT_MSK_PWRHOLD_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_HOTDIE] = { + .mask = TPS65910_INT_MSK_HOTDIE_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_RTC_ALARM] = { + .mask = TPS65910_INT_MSK_RTC_ALARM_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_RTC_PERIOD] = { + .mask = TPS65910_INT_MSK_RTC_PERIOD_IT_MSK_MASK, + .reg_offset = 0, + }, + + /* INT_STS2 */ + [TPS65910_IRQ_GPIO_R] = { + .mask = TPS65910_INT_MSK2_GPIO0_F_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65910_IRQ_GPIO_F] = { + .mask = TPS65910_INT_MSK2_GPIO0_R_IT_MSK_MASK, + .reg_offset = 1, + }, +}; + +static struct regmap_irq_chip tps65911_irq_chip = { + .name = "tps65910", + .irqs = tps65911_irqs, + .num_irqs = ARRAY_SIZE(tps65911_irqs), + .num_regs = 3, + .irq_reg_stride = 2, + .status_base = TPS65910_INT_STS, + .mask_base = TPS65910_INT_MSK, + .ack_base = TPS65910_INT_MSK, +}; + +static struct regmap_irq_chip tps65910_irq_chip = { + .name = "tps65910", + .irqs = tps65910_irqs, + .num_irqs = ARRAY_SIZE(tps65910_irqs), + .num_regs = 2, + .irq_reg_stride = 2, + .status_base = TPS65910_INT_STS, + .mask_base = TPS65910_INT_MSK, + .ack_base = TPS65910_INT_MSK, +}; + +static int tps65910_irq_init(struct tps65910 *tps65910, int irq, + struct tps65910_platform_data *pdata) +{ + int ret = 0; + static struct regmap_irq_chip *tps6591x_irqs_chip; + + if (!irq) { + dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n"); + return -EINVAL; + } + + if (!pdata) { + dev_warn(tps65910->dev, "No interrupt support, no pdata\n"); + return -EINVAL; + } + + switch (tps65910_chip_id(tps65910)) { + case TPS65910: + tps6591x_irqs_chip = &tps65910_irq_chip; + break; + case TPS65911: + tps6591x_irqs_chip = &tps65911_irq_chip; + break; + } + + tps65910->chip_irq = irq; + ret = regmap_add_irq_chip(tps65910->regmap, tps65910->chip_irq, + IRQF_ONESHOT, pdata->irq_base, + tps6591x_irqs_chip, &tps65910->irq_data); + if (ret < 0) + dev_warn(tps65910->dev, "Failed to add irq_chip %d\n", ret); + return ret; +} + +static int tps65910_irq_exit(struct tps65910 *tps65910) +{ + if (tps65910->chip_irq > 0) + regmap_del_irq_chip(tps65910->chip_irq, tps65910->irq_data); + return 0; +} + static bool is_volatile_reg(struct device *dev, unsigned int reg) { struct tps65910 *tps65910 = dev_get_drvdata(dev); -- cgit v1.1 From 17143e38afd60128332067ff91af080ddc764780 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 13 Nov 2012 19:33:59 +0530 Subject: mfd: tps65910: Pass irq_domain when adding mfd sub devices When adding the sub device "tps65910-rtc", is it passed the IO resource IRQ for the interrupt number. This interrupt needs to map in the device irq domain. Pass the irq domain of device in mfd_add_devices() so that proper irq mapping can be done when adding the sub device RTC. Signed-off-by: Laxman Dewangan Reviewed-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/tps65910.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c index d4d4eb5..ca37833 100644 --- a/drivers/mfd/tps65910.c +++ b/drivers/mfd/tps65910.c @@ -509,7 +509,8 @@ static __devinit int tps65910_i2c_probe(struct i2c_client *i2c, ret = mfd_add_devices(tps65910->dev, -1, tps65910s, ARRAY_SIZE(tps65910s), - NULL, 0, NULL); + NULL, 0, + regmap_irq_get_domain(tps65910->irq_data)); if (ret < 0) { dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret); return ret; -- cgit v1.1 From ffe20b6854db455a0c40e5fe1f9db2cfc9a62c6a Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 4 Oct 2012 00:15:04 -0300 Subject: mfd: da9052-core: Use regmap_irq_get_virq() and fix the probe On a mx53qsb dt-kernel the da9052-core driver fails to probe as follows: da9052 1-0048: DA9052 ADC IRQ failed ret=-22 The reason for the error was due to passing only the offset as the interrupt number in request_threaded_irq() without da9052->irq_base. The recommended approach though is to use regmap_get_virq() to acquire the interrupt number and this allows to get rid of da9052->irq_base. Fix it and allow the driver to probe successfully. Also provide a few more error logs and change the irq string to "adc-irq", so that it appears as a single word in 'cat /proc/interrupts' Signed-off-by: Fabio Estevam Reviwed-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/da9052-core.c | 34 +++++++++++++++++++--------------- 1 file changed, 19 insertions(+), 15 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/da9052-core.c b/drivers/mfd/da9052-core.c index a0a62b2..c96cdbc 100644 --- a/drivers/mfd/da9052-core.c +++ b/drivers/mfd/da9052-core.c @@ -769,10 +769,15 @@ struct regmap_config da9052_regmap_config = { }; EXPORT_SYMBOL_GPL(da9052_regmap_config); +static int da9052_map_irq(struct da9052 *da9052, int irq) +{ + return regmap_irq_get_virq(da9052->irq_data, irq); +} + int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id) { struct da9052_pdata *pdata = da9052->dev->platform_data; - int ret; + int ret, i; mutex_init(&da9052->auxadc_lock); init_completion(&da9052->done); @@ -782,35 +787,34 @@ int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id) da9052->chip_id = chip_id; - if (!pdata || !pdata->irq_base) - da9052->irq_base = -1; - else - da9052->irq_base = pdata->irq_base; - ret = regmap_add_irq_chip(da9052->regmap, da9052->chip_irq, IRQF_TRIGGER_LOW | IRQF_ONESHOT, - da9052->irq_base, &da9052_regmap_irq_chip, + -1, &da9052_regmap_irq_chip, &da9052->irq_data); - if (ret < 0) + if (ret < 0) { + dev_err(da9052->dev, "regmap_add_irq_chip failed: %d\n", ret); goto regmap_err; + } - da9052->irq_base = regmap_irq_chip_get_base(da9052->irq_data); - - ret = request_threaded_irq(DA9052_IRQ_ADC_EOM, NULL, da9052_auxadc_irq, + i = da9052_map_irq(da9052, DA9052_IRQ_ADC_EOM); + ret = request_threaded_irq(i, NULL, da9052_auxadc_irq, IRQF_TRIGGER_LOW | IRQF_ONESHOT, - "adc irq", da9052); + "adc-irq", da9052); if (ret != 0) dev_err(da9052->dev, "DA9052 ADC IRQ failed ret=%d\n", ret); ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info, ARRAY_SIZE(da9052_subdev_info), NULL, 0, NULL); - if (ret) + if (ret) { + dev_err(da9052->dev, "mfd_add_devices failed: %d\n", ret); goto err; + } return 0; err: - free_irq(DA9052_IRQ_ADC_EOM, da9052); + free_irq(da9052_map_irq(da9052, DA9052_IRQ_ADC_EOM), da9052); + regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data); mfd_remove_devices(da9052->dev); regmap_err: return ret; @@ -818,7 +822,7 @@ regmap_err: void da9052_device_exit(struct da9052 *da9052) { - free_irq(DA9052_IRQ_ADC_EOM, da9052); + free_irq(da9052_map_irq(da9052, DA9052_IRQ_ADC_EOM), da9052); regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data); mfd_remove_devices(da9052->dev); } -- cgit v1.1 From 8bad1abd6303476d6f77878aa8ea737d5d1b625c Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 4 Oct 2012 00:15:05 -0300 Subject: mfd: da9052: Introduce da9052-irq.c Create a da9052-irq.c file so that it can handle interrupt related functions. This is useful for allowing the da9052 drivers to use such functions when dealing with da9052 interrupts. Signed-off-by: Fabio Estevam Acked-by: Arnd Bergmann Reviewed-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/Makefile | 1 + drivers/mfd/da9052-core.c | 271 ++----------------------------------------- drivers/mfd/da9052-irq.c | 288 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 297 insertions(+), 263 deletions(-) create mode 100644 drivers/mfd/da9052-irq.c (limited to 'drivers/mfd') diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index a30c49e..632cce0 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -90,6 +90,7 @@ obj-$(CONFIG_UCB1400_CORE) += ucb1400_core.o obj-$(CONFIG_PMIC_DA903X) += da903x.o +obj-$(CONFIG_PMIC_DA9052) += da9052-irq.o obj-$(CONFIG_PMIC_DA9052) += da9052-core.o obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o diff --git a/drivers/mfd/da9052-core.c b/drivers/mfd/da9052-core.c index c96cdbc..2153f9bb 100644 --- a/drivers/mfd/da9052-core.c +++ b/drivers/mfd/da9052-core.c @@ -15,7 +15,6 @@ #include #include #include -#include #include #include #include @@ -24,16 +23,6 @@ #include #include -#define DA9052_NUM_IRQ_REGS 4 -#define DA9052_IRQ_MASK_POS_1 0x01 -#define DA9052_IRQ_MASK_POS_2 0x02 -#define DA9052_IRQ_MASK_POS_3 0x04 -#define DA9052_IRQ_MASK_POS_4 0x08 -#define DA9052_IRQ_MASK_POS_5 0x10 -#define DA9052_IRQ_MASK_POS_6 0x20 -#define DA9052_IRQ_MASK_POS_7 0x40 -#define DA9052_IRQ_MASK_POS_8 0x80 - static bool da9052_reg_readable(struct device *dev, unsigned int reg) { switch (reg) { @@ -425,15 +414,6 @@ err: } EXPORT_SYMBOL_GPL(da9052_adc_manual_read); -static irqreturn_t da9052_auxadc_irq(int irq, void *irq_data) -{ - struct da9052 *da9052 = irq_data; - - complete(&da9052->done); - - return IRQ_HANDLED; -} - int da9052_adc_read_temp(struct da9052 *da9052) { int tbat; @@ -447,74 +427,6 @@ int da9052_adc_read_temp(struct da9052 *da9052) } EXPORT_SYMBOL_GPL(da9052_adc_read_temp); -static struct resource da9052_rtc_resource = { - .name = "ALM", - .start = DA9052_IRQ_ALARM, - .end = DA9052_IRQ_ALARM, - .flags = IORESOURCE_IRQ, -}; - -static struct resource da9052_onkey_resource = { - .name = "ONKEY", - .start = DA9052_IRQ_NONKEY, - .end = DA9052_IRQ_NONKEY, - .flags = IORESOURCE_IRQ, -}; - -static struct resource da9052_bat_resources[] = { - { - .name = "BATT TEMP", - .start = DA9052_IRQ_TBAT, - .end = DA9052_IRQ_TBAT, - .flags = IORESOURCE_IRQ, - }, - { - .name = "DCIN DET", - .start = DA9052_IRQ_DCIN, - .end = DA9052_IRQ_DCIN, - .flags = IORESOURCE_IRQ, - }, - { - .name = "DCIN REM", - .start = DA9052_IRQ_DCINREM, - .end = DA9052_IRQ_DCINREM, - .flags = IORESOURCE_IRQ, - }, - { - .name = "VBUS DET", - .start = DA9052_IRQ_VBUS, - .end = DA9052_IRQ_VBUS, - .flags = IORESOURCE_IRQ, - }, - { - .name = "VBUS REM", - .start = DA9052_IRQ_VBUSREM, - .end = DA9052_IRQ_VBUSREM, - .flags = IORESOURCE_IRQ, - }, - { - .name = "CHG END", - .start = DA9052_IRQ_CHGEND, - .end = DA9052_IRQ_CHGEND, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct resource da9052_tsi_resources[] = { - { - .name = "PENDWN", - .start = DA9052_IRQ_PENDOWN, - .end = DA9052_IRQ_PENDOWN, - .flags = IORESOURCE_IRQ, - }, - { - .name = "TSIRDY", - .start = DA9052_IRQ_TSIREADY, - .end = DA9052_IRQ_TSIREADY, - .flags = IORESOURCE_IRQ, - }, -}; - static struct mfd_cell __devinitdata da9052_subdev_info[] = { { .name = "da9052-regulator", @@ -574,13 +486,9 @@ static struct mfd_cell __devinitdata da9052_subdev_info[] = { }, { .name = "da9052-onkey", - .resources = &da9052_onkey_resource, - .num_resources = 1, }, { .name = "da9052-rtc", - .resources = &da9052_rtc_resource, - .num_resources = 1, }, { .name = "da9052-gpio", @@ -602,160 +510,15 @@ static struct mfd_cell __devinitdata da9052_subdev_info[] = { }, { .name = "da9052-tsi", - .resources = da9052_tsi_resources, - .num_resources = ARRAY_SIZE(da9052_tsi_resources), }, { .name = "da9052-bat", - .resources = da9052_bat_resources, - .num_resources = ARRAY_SIZE(da9052_bat_resources), }, { .name = "da9052-watchdog", }, }; -static struct regmap_irq da9052_irqs[] = { - [DA9052_IRQ_DCIN] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_1, - }, - [DA9052_IRQ_VBUS] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_2, - }, - [DA9052_IRQ_DCINREM] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_3, - }, - [DA9052_IRQ_VBUSREM] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_4, - }, - [DA9052_IRQ_VDDLOW] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_5, - }, - [DA9052_IRQ_ALARM] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_6, - }, - [DA9052_IRQ_SEQRDY] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_7, - }, - [DA9052_IRQ_COMP1V2] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_8, - }, - [DA9052_IRQ_NONKEY] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_1, - }, - [DA9052_IRQ_IDFLOAT] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_2, - }, - [DA9052_IRQ_IDGND] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_3, - }, - [DA9052_IRQ_CHGEND] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_4, - }, - [DA9052_IRQ_TBAT] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_5, - }, - [DA9052_IRQ_ADC_EOM] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_6, - }, - [DA9052_IRQ_PENDOWN] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_7, - }, - [DA9052_IRQ_TSIREADY] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_8, - }, - [DA9052_IRQ_GPI0] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_1, - }, - [DA9052_IRQ_GPI1] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_2, - }, - [DA9052_IRQ_GPI2] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_3, - }, - [DA9052_IRQ_GPI3] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_4, - }, - [DA9052_IRQ_GPI4] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_5, - }, - [DA9052_IRQ_GPI5] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_6, - }, - [DA9052_IRQ_GPI6] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_7, - }, - [DA9052_IRQ_GPI7] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_8, - }, - [DA9052_IRQ_GPI8] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_1, - }, - [DA9052_IRQ_GPI9] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_2, - }, - [DA9052_IRQ_GPI10] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_3, - }, - [DA9052_IRQ_GPI11] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_4, - }, - [DA9052_IRQ_GPI12] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_5, - }, - [DA9052_IRQ_GPI13] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_6, - }, - [DA9052_IRQ_GPI14] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_7, - }, - [DA9052_IRQ_GPI15] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_8, - }, -}; - -static struct regmap_irq_chip da9052_regmap_irq_chip = { - .name = "da9052_irq", - .status_base = DA9052_EVENT_A_REG, - .mask_base = DA9052_IRQ_MASK_A_REG, - .ack_base = DA9052_EVENT_A_REG, - .num_regs = DA9052_NUM_IRQ_REGS, - .irqs = da9052_irqs, - .num_irqs = ARRAY_SIZE(da9052_irqs), -}; - struct regmap_config da9052_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -769,15 +532,10 @@ struct regmap_config da9052_regmap_config = { }; EXPORT_SYMBOL_GPL(da9052_regmap_config); -static int da9052_map_irq(struct da9052 *da9052, int irq) -{ - return regmap_irq_get_virq(da9052->irq_data, irq); -} - int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id) { struct da9052_pdata *pdata = da9052->dev->platform_data; - int ret, i; + int ret; mutex_init(&da9052->auxadc_lock); init_completion(&da9052->done); @@ -787,22 +545,12 @@ int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id) da9052->chip_id = chip_id; - ret = regmap_add_irq_chip(da9052->regmap, da9052->chip_irq, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - -1, &da9052_regmap_irq_chip, - &da9052->irq_data); - if (ret < 0) { - dev_err(da9052->dev, "regmap_add_irq_chip failed: %d\n", ret); - goto regmap_err; + ret = da9052_irq_init(da9052); + if (ret != 0) { + dev_err(da9052->dev, "da9052_irq_init failed: %d\n", ret); + return ret; } - i = da9052_map_irq(da9052, DA9052_IRQ_ADC_EOM); - ret = request_threaded_irq(i, NULL, da9052_auxadc_irq, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - "adc-irq", da9052); - if (ret != 0) - dev_err(da9052->dev, "DA9052 ADC IRQ failed ret=%d\n", ret); - ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info, ARRAY_SIZE(da9052_subdev_info), NULL, 0, NULL); if (ret) { @@ -813,18 +561,15 @@ int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id) return 0; err: - free_irq(da9052_map_irq(da9052, DA9052_IRQ_ADC_EOM), da9052); - regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data); - mfd_remove_devices(da9052->dev); -regmap_err: + da9052_irq_exit(da9052); + return ret; } void da9052_device_exit(struct da9052 *da9052) { - free_irq(da9052_map_irq(da9052, DA9052_IRQ_ADC_EOM), da9052); - regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data); mfd_remove_devices(da9052->dev); + da9052_irq_exit(da9052); } MODULE_AUTHOR("David Dajun Chen "); diff --git a/drivers/mfd/da9052-irq.c b/drivers/mfd/da9052-irq.c new file mode 100644 index 0000000..57ae784 --- /dev/null +++ b/drivers/mfd/da9052-irq.c @@ -0,0 +1,288 @@ +/* + * DA9052 interrupt support + * + * Author: Fabio Estevam + * Based on arizona-irq.c, which is: + * + * Copyright 2012 Wolfson Microelectronics plc + * + * Author: Mark Brown + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#define DA9052_NUM_IRQ_REGS 4 +#define DA9052_IRQ_MASK_POS_1 0x01 +#define DA9052_IRQ_MASK_POS_2 0x02 +#define DA9052_IRQ_MASK_POS_3 0x04 +#define DA9052_IRQ_MASK_POS_4 0x08 +#define DA9052_IRQ_MASK_POS_5 0x10 +#define DA9052_IRQ_MASK_POS_6 0x20 +#define DA9052_IRQ_MASK_POS_7 0x40 +#define DA9052_IRQ_MASK_POS_8 0x80 + +static struct regmap_irq da9052_irqs[] = { + [DA9052_IRQ_DCIN] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_1, + }, + [DA9052_IRQ_VBUS] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_2, + }, + [DA9052_IRQ_DCINREM] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_3, + }, + [DA9052_IRQ_VBUSREM] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_4, + }, + [DA9052_IRQ_VDDLOW] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_5, + }, + [DA9052_IRQ_ALARM] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_6, + }, + [DA9052_IRQ_SEQRDY] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_7, + }, + [DA9052_IRQ_COMP1V2] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_8, + }, + [DA9052_IRQ_NONKEY] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_1, + }, + [DA9052_IRQ_IDFLOAT] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_2, + }, + [DA9052_IRQ_IDGND] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_3, + }, + [DA9052_IRQ_CHGEND] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_4, + }, + [DA9052_IRQ_TBAT] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_5, + }, + [DA9052_IRQ_ADC_EOM] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_6, + }, + [DA9052_IRQ_PENDOWN] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_7, + }, + [DA9052_IRQ_TSIREADY] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_8, + }, + [DA9052_IRQ_GPI0] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_1, + }, + [DA9052_IRQ_GPI1] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_2, + }, + [DA9052_IRQ_GPI2] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_3, + }, + [DA9052_IRQ_GPI3] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_4, + }, + [DA9052_IRQ_GPI4] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_5, + }, + [DA9052_IRQ_GPI5] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_6, + }, + [DA9052_IRQ_GPI6] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_7, + }, + [DA9052_IRQ_GPI7] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_8, + }, + [DA9052_IRQ_GPI8] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_1, + }, + [DA9052_IRQ_GPI9] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_2, + }, + [DA9052_IRQ_GPI10] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_3, + }, + [DA9052_IRQ_GPI11] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_4, + }, + [DA9052_IRQ_GPI12] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_5, + }, + [DA9052_IRQ_GPI13] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_6, + }, + [DA9052_IRQ_GPI14] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_7, + }, + [DA9052_IRQ_GPI15] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_8, + }, +}; + +static struct regmap_irq_chip da9052_regmap_irq_chip = { + .name = "da9052_irq", + .status_base = DA9052_EVENT_A_REG, + .mask_base = DA9052_IRQ_MASK_A_REG, + .ack_base = DA9052_EVENT_A_REG, + .num_regs = DA9052_NUM_IRQ_REGS, + .irqs = da9052_irqs, + .num_irqs = ARRAY_SIZE(da9052_irqs), +}; + +static int da9052_map_irq(struct da9052 *da9052, int irq) +{ + return regmap_irq_get_virq(da9052->irq_data, irq); +} + +int da9052_enable_irq(struct da9052 *da9052, int irq) +{ + irq = da9052_map_irq(da9052, irq); + if (irq < 0) + return irq; + + enable_irq(irq); + + return 0; +} +EXPORT_SYMBOL_GPL(da9052_enable_irq); + +int da9052_disable_irq(struct da9052 *da9052, int irq) +{ + irq = da9052_map_irq(da9052, irq); + if (irq < 0) + return irq; + + disable_irq(irq); + + return 0; +} +EXPORT_SYMBOL_GPL(da9052_disable_irq); + +int da9052_disable_irq_nosync(struct da9052 *da9052, int irq) +{ + irq = da9052_map_irq(da9052, irq); + if (irq < 0) + return irq; + + disable_irq_nosync(irq); + + return 0; +} +EXPORT_SYMBOL_GPL(da9052_disable_irq_nosync); + +int da9052_request_irq(struct da9052 *da9052, int irq, char *name, + irq_handler_t handler, void *data) +{ + irq = da9052_map_irq(da9052, irq); + if (irq < 0) + return irq; + + return request_threaded_irq(irq, NULL, handler, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + name, data); +} +EXPORT_SYMBOL_GPL(da9052_request_irq); + +void da9052_free_irq(struct da9052 *da9052, int irq, void *data) +{ + irq = da9052_map_irq(da9052, irq); + if (irq < 0) + return; + + free_irq(irq, data); +} +EXPORT_SYMBOL_GPL(da9052_free_irq); + +static irqreturn_t da9052_auxadc_irq(int irq, void *irq_data) +{ + struct da9052 *da9052 = irq_data; + + complete(&da9052->done); + + return IRQ_HANDLED; +} + +int da9052_irq_init(struct da9052 *da9052) +{ + int ret; + + ret = regmap_add_irq_chip(da9052->regmap, da9052->chip_irq, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + -1, &da9052_regmap_irq_chip, + &da9052->irq_data); + if (ret < 0) { + dev_err(da9052->dev, "regmap_add_irq_chip failed: %d\n", ret); + goto regmap_err; + } + + ret = da9052_request_irq(da9052, DA9052_IRQ_ADC_EOM, "adc-irq", + da9052_auxadc_irq, da9052); + + if (ret != 0) { + dev_err(da9052->dev, "DA9052_IRQ_ADC_EOM failed: %d\n", ret); + goto request_irq_err; + } + + return 0; + +request_irq_err: + regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data); +regmap_err: + return ret; + +} + +int da9052_irq_exit(struct da9052 *da9052) +{ + da9052_free_irq(da9052, DA9052_IRQ_ADC_EOM , da9052); + regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data); + + return 0; +} -- cgit v1.1 From b9fbb62eb61452d728c39b2e5020739c575aac53 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Fri, 9 Nov 2012 16:15:28 +0000 Subject: mfd: Only unregister platform devices allocated by the mfd core mfd_remove_devices would iterate over all devices sharing a parent with an mfd device regardless of whether they were allocated by the mfd core or not. This especially caused problems when the device structure was not contained within a platform_device, because to_platform_device is used on each device pointer. This patch defines a device_type for mfd devices and checks this is present from mfd_remove_devices_fn before processing the device. Cc: stable@vger.kernel.org Signed-off-by: Charles Keepax Tested-by: Peter Tyser Reviewed-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/mfd-core.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index f8b7771..7604f4e 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -21,6 +21,10 @@ #include #include +static struct device_type mfd_dev_type = { + .name = "mfd_device", +}; + int mfd_cell_enable(struct platform_device *pdev) { const struct mfd_cell *cell = mfd_get_cell(pdev); @@ -91,6 +95,7 @@ static int mfd_add_device(struct device *parent, int id, goto fail_device; pdev->dev.parent = parent; + pdev->dev.type = &mfd_dev_type; if (parent->of_node && cell->of_compatible) { for_each_child_of_node(parent->of_node, np) { @@ -204,10 +209,16 @@ EXPORT_SYMBOL(mfd_add_devices); static int mfd_remove_devices_fn(struct device *dev, void *c) { - struct platform_device *pdev = to_platform_device(dev); - const struct mfd_cell *cell = mfd_get_cell(pdev); + struct platform_device *pdev; + const struct mfd_cell *cell; atomic_t **usage_count = c; + if (dev->type != &mfd_dev_type) + return 0; + + pdev = to_platform_device(dev); + cell = mfd_get_cell(pdev); + /* find the base address of usage_count pointers (for freeing) */ if (!*usage_count || (cell->usage_count < *usage_count)) *usage_count = cell->usage_count; -- cgit v1.1 From f01312d846016dbd38cc9865e580298fb61f2aa7 Mon Sep 17 00:00:00 2001 From: Lars Poeschel Date: Mon, 5 Nov 2012 15:48:23 +0100 Subject: mfd: Add viperboard driver Add mfd driver for Nano River Technologies viperboard. Signed-off-by: Lars Poeschel Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 14 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/viperboard.c | 129 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 144 insertions(+) create mode 100644 drivers/mfd/viperboard.c (limited to 'drivers/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 34242ca..b280639 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1065,6 +1065,20 @@ config MFD_PALMAS If you say yes here you get support for the Palmas series of PMIC chips from Texas Instruments. +config MFD_VIPERBOARD + tristate "Support for Nano River Technologies Viperboard" + select MFD_CORE + depends on USB + default n + help + Say yes here if you want support for Nano River Technologies + Viperboard. + There are mfd cell drivers available for i2c master, adc and + both gpios found on the board. The spi part does not yet + have a driver. + You need to select the mfd cell drivers separately. + The drivers do not support all features the board exposes. + endmenu endif diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 632cce0..1c3ee7c 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -139,6 +139,7 @@ obj-$(CONFIG_MFD_TPS65090) += tps65090.o obj-$(CONFIG_MFD_AAT2870_CORE) += aat2870-core.o obj-$(CONFIG_MFD_INTEL_MSIC) += intel_msic.o obj-$(CONFIG_MFD_PALMAS) += palmas.o +obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o obj-$(CONFIG_MFD_SYSCON) += syscon.o diff --git a/drivers/mfd/viperboard.c b/drivers/mfd/viperboard.c new file mode 100644 index 0000000..cd1e2fe --- /dev/null +++ b/drivers/mfd/viperboard.c @@ -0,0 +1,129 @@ +/* + * Nano River Technologies viperboard driver + * + * This is the core driver for the viperboard. There are cell drivers + * available for I2C, ADC and both GPIOs. SPI is not yet supported. + * The drivers do not support all features the board exposes. See user + * manual of the viperboard. + * + * (C) 2012 by Lemonage GmbH + * Author: Lars Poeschel + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include +#include +#include +#include +#include +#include + +#include +#include + +#include + + +static const struct usb_device_id vprbrd_table[] = { + { USB_DEVICE(0x2058, 0x1005) }, /* Nano River Technologies */ + { } /* Terminating entry */ +}; + +MODULE_DEVICE_TABLE(usb, vprbrd_table); + +static struct mfd_cell vprbrd_devs[] = { +}; + +static int vprbrd_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct vprbrd *vb; + + u16 version = 0; + int pipe, ret; + unsigned char buf[1]; + + /* allocate memory for our device state and initialize it */ + vb = kzalloc(sizeof(*vb), GFP_KERNEL); + if (vb == NULL) { + dev_err(&interface->dev, "Out of memory\n"); + return -ENOMEM; + } + + mutex_init(&vb->lock); + + vb->usb_dev = usb_get_dev(interface_to_usbdev(interface)); + + /* save our data pointer in this interface device */ + usb_set_intfdata(interface, vb); + dev_set_drvdata(&vb->pdev.dev, vb); + + /* get version information, major first, minor then */ + pipe = usb_rcvctrlpipe(vb->usb_dev, 0); + ret = usb_control_msg(vb->usb_dev, pipe, VPRBRD_USB_REQUEST_MAJOR, + VPRBRD_USB_TYPE_IN, 0x0000, 0x0000, buf, 1, + VPRBRD_USB_TIMEOUT_MS); + if (ret == 1) + version = buf[0]; + + ret = usb_control_msg(vb->usb_dev, pipe, VPRBRD_USB_REQUEST_MINOR, + VPRBRD_USB_TYPE_IN, 0x0000, 0x0000, buf, 1, + VPRBRD_USB_TIMEOUT_MS); + if (ret == 1) { + version <<= 8; + version = version | buf[0]; + } + + dev_info(&interface->dev, + "version %x.%02x found at bus %03d address %03d\n", + version >> 8, version & 0xff, + vb->usb_dev->bus->busnum, vb->usb_dev->devnum); + + ret = mfd_add_devices(&interface->dev, -1, vprbrd_devs, + ARRAY_SIZE(vprbrd_devs), NULL, 0, NULL); + if (ret != 0) { + dev_err(&interface->dev, "Failed to add mfd devices to core."); + goto error; + } + + return 0; + +error: + if (vb) { + usb_put_dev(vb->usb_dev); + kfree(vb); + } + + return ret; +} + +static void vprbrd_disconnect(struct usb_interface *interface) +{ + struct vprbrd *vb = usb_get_intfdata(interface); + + mfd_remove_devices(&interface->dev); + usb_set_intfdata(interface, NULL); + usb_put_dev(vb->usb_dev); + kfree(vb); + + dev_dbg(&interface->dev, "disconnected\n"); +} + +static struct usb_driver vprbrd_driver = { + .name = "viperboard", + .probe = vprbrd_probe, + .disconnect = vprbrd_disconnect, + .id_table = vprbrd_table, +}; + +module_usb_driver(vprbrd_driver); + +MODULE_DESCRIPTION("Nano River Technologies viperboard mfd core driver"); +MODULE_AUTHOR("Lars Poeschel "); +MODULE_LICENSE("GPL"); -- cgit v1.1 From 9d5b72de0d1627b130fa69c5edf58b5b2df4ca50 Mon Sep 17 00:00:00 2001 From: Lars Poeschel Date: Mon, 5 Nov 2012 15:48:24 +0100 Subject: gpio: Add viperboard gpio driver This adds the mfd cell to use the gpio a and gpio b part of the Nano River Technologies viperboard. Signed-off-by: Lars Poeschel Reviewed-by: Linus Walleij Signed-off-by: Samuel Ortiz --- drivers/mfd/viperboard.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/viperboard.c b/drivers/mfd/viperboard.c index cd1e2fe..c75ac08 100644 --- a/drivers/mfd/viperboard.c +++ b/drivers/mfd/viperboard.c @@ -38,6 +38,9 @@ static const struct usb_device_id vprbrd_table[] = { MODULE_DEVICE_TABLE(usb, vprbrd_table); static struct mfd_cell vprbrd_devs[] = { + { + .name = "viperboard-gpio", + }, }; static int vprbrd_probe(struct usb_interface *interface, -- cgit v1.1 From 174a13aa8669331605b138aaf61569dd7189e453 Mon Sep 17 00:00:00 2001 From: Lars Poeschel Date: Mon, 19 Nov 2012 16:36:04 +0100 Subject: i2c: Add viperboard i2c master driver This adds the mfd cell to use the i2c part of the Nano River Technologies viperboard as i2c master. Signed-off-by: Lars Poeschel Signed-off-by: Samuel Ortiz --- drivers/mfd/viperboard.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/viperboard.c b/drivers/mfd/viperboard.c index c75ac08..4f74ec8 100644 --- a/drivers/mfd/viperboard.c +++ b/drivers/mfd/viperboard.c @@ -41,6 +41,9 @@ static struct mfd_cell vprbrd_devs[] = { { .name = "viperboard-gpio", }, + { + .name = "viperboard-i2c", + }, }; static int vprbrd_probe(struct usb_interface *interface, -- cgit v1.1 From ffd8a6e7a77802dd09559be78dea63956aa8f1d5 Mon Sep 17 00:00:00 2001 From: Lars Poeschel Date: Mon, 5 Nov 2012 15:48:26 +0100 Subject: iio: adc: Add viperboard adc driver This adds the mfd cell to use the adc part of the Nano River Technologies viperboard. Signed-off-by: Lars Poeschel Reviewed-by: Lars-Peter Clausen Acked-by: Jonathan Cameron Signed-off-by: Samuel Ortiz --- drivers/mfd/viperboard.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/viperboard.c b/drivers/mfd/viperboard.c index 4f74ec8..276122b 100644 --- a/drivers/mfd/viperboard.c +++ b/drivers/mfd/viperboard.c @@ -44,6 +44,9 @@ static struct mfd_cell vprbrd_devs[] = { { .name = "viperboard-i2c", }, + { + .name = "viperboard-adc", + }, }; static int vprbrd_probe(struct usb_interface *interface, -- cgit v1.1 From 1950c7164646bfeeb82c34bc299d82119706afb5 Mon Sep 17 00:00:00 2001 From: Davide Ciminaghi Date: Fri, 9 Nov 2012 15:19:52 +0100 Subject: mfd: sta2x11-mfd: Add apb-soc regs driver and factor out common code A driver for the apb-soc registers is needed by the clock infrastructure code to configure and control clocks on the sta2x11 chip. Since some of the functions in sta2x11-mfd.c were almost identical for the two existing platform devices, the following changes have been performed to avoid further code duplication while adding the apb-soc-regs driver: * The sctl_regs and apbreg_regs fields in struct sta2x11_mfd have been turned into just one array of pointers accessed by device index. * Platform probe methods have become one-liners invoking a common probe with the device's index as second parameter. * For loops have been inserted where the same operations were performed for each of the two bars of a pci device. * The apbreg_mask and sctl_mask functions were almost identical, so they were turned into inline functions invoking a common __sta2x11_mfd_mask() with the platform device's index as last parameter. To do this, enum sta2x11_mfd_plat_dev has been declared in sta2x11-mfd.h and more device types have been added to it. Reviewed-by: Mark Brown Signed-off-by: Davide Ciminaghi Acked-by: Alessandro Rubini Signed-off-by: Samuel Ortiz --- drivers/mfd/sta2x11-mfd.c | 350 +++++++++++++++++++++++++++++++--------------- 1 file changed, 241 insertions(+), 109 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index d35da68..9e01b84 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -40,8 +40,7 @@ struct sta2x11_mfd { struct sta2x11_instance *instance; spinlock_t lock; struct list_head list; - void __iomem *sctl_regs; - void __iomem *apbreg_regs; + void __iomem *regs[sta2x11_n_mfd_plat_devs]; }; static LIST_HEAD(sta2x11_mfd_list); @@ -100,56 +99,33 @@ static int __devexit mfd_remove(struct pci_dev *pdev) return 0; } -/* These two functions are exported and are not expected to fail */ -u32 sta2x11_sctl_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val) +/* This function is exported and is not expected to fail */ +u32 __sta2x11_mfd_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val, + enum sta2x11_mfd_plat_dev index) { struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev); u32 r; unsigned long flags; + void __iomem *regs = mfd->regs[index]; if (!mfd) { dev_warn(&pdev->dev, ": can't access sctl regs\n"); return 0; } - if (!mfd->sctl_regs) { + if (!regs) { dev_warn(&pdev->dev, ": system ctl not initialized\n"); return 0; } spin_lock_irqsave(&mfd->lock, flags); - r = readl(mfd->sctl_regs + reg); + r = readl(regs + reg); r &= ~mask; r |= val; if (mask) - writel(r, mfd->sctl_regs + reg); + writel(r, regs + reg); spin_unlock_irqrestore(&mfd->lock, flags); return r; } -EXPORT_SYMBOL(sta2x11_sctl_mask); - -u32 sta2x11_apbreg_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val) -{ - struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev); - u32 r; - unsigned long flags; - - if (!mfd) { - dev_warn(&pdev->dev, ": can't access apb regs\n"); - return 0; - } - if (!mfd->apbreg_regs) { - dev_warn(&pdev->dev, ": apb bridge not initialized\n"); - return 0; - } - spin_lock_irqsave(&mfd->lock, flags); - r = readl(mfd->apbreg_regs + reg); - r &= ~mask; - r |= val; - if (mask) - writel(r, mfd->apbreg_regs + reg); - spin_unlock_irqrestore(&mfd->lock, flags); - return r; -} -EXPORT_SYMBOL(sta2x11_apbreg_mask); +EXPORT_SYMBOL(__sta2x11_mfd_mask); /* Two debugfs files, for our registers (FIXME: one instance only) */ #define REG(regname) {.name = #regname, .offset = SCTL_ ## regname} @@ -180,51 +156,103 @@ static struct debugfs_regset32 apbreg_regset = { .nregs = ARRAY_SIZE(sta2x11_apbreg_regs), }; -static struct dentry *sta2x11_sctl_debugfs; -static struct dentry *sta2x11_apbreg_debugfs; +#define REG(regname) {.name = #regname, .offset = regname} +static struct debugfs_reg32 sta2x11_apb_soc_regs_regs[] = { + REG(PCIE_EP1_FUNC3_0_INTR_REG), REG(PCIE_EP1_FUNC7_4_INTR_REG), + REG(PCIE_EP2_FUNC3_0_INTR_REG), REG(PCIE_EP2_FUNC7_4_INTR_REG), + REG(PCIE_EP3_FUNC3_0_INTR_REG), REG(PCIE_EP3_FUNC7_4_INTR_REG), + REG(PCIE_EP4_FUNC3_0_INTR_REG), REG(PCIE_EP4_FUNC7_4_INTR_REG), + REG(PCIE_INTR_ENABLE0_REG), REG(PCIE_INTR_ENABLE1_REG), + REG(PCIE_EP1_FUNC_TC_REG), REG(PCIE_EP2_FUNC_TC_REG), + REG(PCIE_EP3_FUNC_TC_REG), REG(PCIE_EP4_FUNC_TC_REG), + REG(PCIE_EP1_FUNC_F_REG), REG(PCIE_EP2_FUNC_F_REG), + REG(PCIE_EP3_FUNC_F_REG), REG(PCIE_EP4_FUNC_F_REG), + REG(PCIE_PAB_AMBA_SW_RST_REG), REG(PCIE_PM_STATUS_0_PORT_0_4), + REG(PCIE_PM_STATUS_7_0_EP1), REG(PCIE_PM_STATUS_7_0_EP2), + REG(PCIE_PM_STATUS_7_0_EP3), REG(PCIE_PM_STATUS_7_0_EP4), + REG(PCIE_DEV_ID_0_EP1_REG), REG(PCIE_CC_REV_ID_0_EP1_REG), + REG(PCIE_DEV_ID_1_EP1_REG), REG(PCIE_CC_REV_ID_1_EP1_REG), + REG(PCIE_DEV_ID_2_EP1_REG), REG(PCIE_CC_REV_ID_2_EP1_REG), + REG(PCIE_DEV_ID_3_EP1_REG), REG(PCIE_CC_REV_ID_3_EP1_REG), + REG(PCIE_DEV_ID_4_EP1_REG), REG(PCIE_CC_REV_ID_4_EP1_REG), + REG(PCIE_DEV_ID_5_EP1_REG), REG(PCIE_CC_REV_ID_5_EP1_REG), + REG(PCIE_DEV_ID_6_EP1_REG), REG(PCIE_CC_REV_ID_6_EP1_REG), + REG(PCIE_DEV_ID_7_EP1_REG), REG(PCIE_CC_REV_ID_7_EP1_REG), + REG(PCIE_DEV_ID_0_EP2_REG), REG(PCIE_CC_REV_ID_0_EP2_REG), + REG(PCIE_DEV_ID_1_EP2_REG), REG(PCIE_CC_REV_ID_1_EP2_REG), + REG(PCIE_DEV_ID_2_EP2_REG), REG(PCIE_CC_REV_ID_2_EP2_REG), + REG(PCIE_DEV_ID_3_EP2_REG), REG(PCIE_CC_REV_ID_3_EP2_REG), + REG(PCIE_DEV_ID_4_EP2_REG), REG(PCIE_CC_REV_ID_4_EP2_REG), + REG(PCIE_DEV_ID_5_EP2_REG), REG(PCIE_CC_REV_ID_5_EP2_REG), + REG(PCIE_DEV_ID_6_EP2_REG), REG(PCIE_CC_REV_ID_6_EP2_REG), + REG(PCIE_DEV_ID_7_EP2_REG), REG(PCIE_CC_REV_ID_7_EP2_REG), + REG(PCIE_DEV_ID_0_EP3_REG), REG(PCIE_CC_REV_ID_0_EP3_REG), + REG(PCIE_DEV_ID_1_EP3_REG), REG(PCIE_CC_REV_ID_1_EP3_REG), + REG(PCIE_DEV_ID_2_EP3_REG), REG(PCIE_CC_REV_ID_2_EP3_REG), + REG(PCIE_DEV_ID_3_EP3_REG), REG(PCIE_CC_REV_ID_3_EP3_REG), + REG(PCIE_DEV_ID_4_EP3_REG), REG(PCIE_CC_REV_ID_4_EP3_REG), + REG(PCIE_DEV_ID_5_EP3_REG), REG(PCIE_CC_REV_ID_5_EP3_REG), + REG(PCIE_DEV_ID_6_EP3_REG), REG(PCIE_CC_REV_ID_6_EP3_REG), + REG(PCIE_DEV_ID_7_EP3_REG), REG(PCIE_CC_REV_ID_7_EP3_REG), + REG(PCIE_DEV_ID_0_EP4_REG), REG(PCIE_CC_REV_ID_0_EP4_REG), + REG(PCIE_DEV_ID_1_EP4_REG), REG(PCIE_CC_REV_ID_1_EP4_REG), + REG(PCIE_DEV_ID_2_EP4_REG), REG(PCIE_CC_REV_ID_2_EP4_REG), + REG(PCIE_DEV_ID_3_EP4_REG), REG(PCIE_CC_REV_ID_3_EP4_REG), + REG(PCIE_DEV_ID_4_EP4_REG), REG(PCIE_CC_REV_ID_4_EP4_REG), + REG(PCIE_DEV_ID_5_EP4_REG), REG(PCIE_CC_REV_ID_5_EP4_REG), + REG(PCIE_DEV_ID_6_EP4_REG), REG(PCIE_CC_REV_ID_6_EP4_REG), + REG(PCIE_DEV_ID_7_EP4_REG), REG(PCIE_CC_REV_ID_7_EP4_REG), + REG(PCIE_SUBSYS_VEN_ID_REG), REG(PCIE_COMMON_CLOCK_CONFIG_0_4_0), + REG(PCIE_MIPHYP_SSC_EN_REG), REG(PCIE_MIPHYP_ADDR_REG), + REG(PCIE_L1_ASPM_READY_REG), REG(PCIE_EXT_CFG_RDY_REG), + REG(PCIE_SoC_INT_ROUTER_STATUS0_REG), + REG(PCIE_SoC_INT_ROUTER_STATUS1_REG), + REG(PCIE_SoC_INT_ROUTER_STATUS2_REG), + REG(PCIE_SoC_INT_ROUTER_STATUS3_REG), + REG(DMA_IP_CTRL_REG), REG(DISP_BRIDGE_PU_PD_CTRL_REG), + REG(VIP_PU_PD_CTRL_REG), REG(USB_MLB_PU_PD_CTRL_REG), + REG(SDIO_PU_PD_MISCFUNC_CTRL_REG1), REG(SDIO_PU_PD_MISCFUNC_CTRL_REG2), + REG(UART_PU_PD_CTRL_REG), REG(ARM_Lock), REG(SYS_IO_CHAR_REG1), + REG(SYS_IO_CHAR_REG2), REG(SATA_CORE_ID_REG), REG(SATA_CTRL_REG), + REG(I2C_HSFIX_MISC_REG), REG(SPARE2_RESERVED), REG(SPARE3_RESERVED), + REG(MASTER_LOCK_REG), REG(SYSTEM_CONFIG_STATUS_REG), + REG(MSP_CLK_CTRL_REG), REG(COMPENSATION_REG1), REG(COMPENSATION_REG2), + REG(COMPENSATION_REG3), REG(TEST_CTL_REG), +}; +#undef REG -/* Probe for the two platform devices */ -static int sta2x11_sctl_probe(struct platform_device *dev) -{ - struct pci_dev **pdev; - struct sta2x11_mfd *mfd; - struct resource *res; +static struct debugfs_regset32 apb_soc_regs_regset = { + .regs = sta2x11_apb_soc_regs_regs, + .nregs = ARRAY_SIZE(sta2x11_apb_soc_regs_regs), +}; - pdev = dev->dev.platform_data; - mfd = sta2x11_mfd_find(*pdev); - if (!mfd) - return -ENODEV; - res = platform_get_resource(dev, IORESOURCE_MEM, 0); - if (!res) - return -ENOMEM; +static struct dentry *sta2x11_mfd_debugfs[sta2x11_n_mfd_plat_devs]; - if (!request_mem_region(res->start, resource_size(res), - "sta2x11-sctl")) - return -EBUSY; +static struct debugfs_regset32 *sta2x11_mfd_regset[sta2x11_n_mfd_plat_devs] = { + [sta2x11_sctl] = &sctl_regset, + [sta2x11_apbreg] = &apbreg_regset, + [sta2x11_apb_soc_regs] = &apb_soc_regs_regset, +}; - mfd->sctl_regs = ioremap(res->start, resource_size(res)); - if (!mfd->sctl_regs) { - release_mem_region(res->start, resource_size(res)); - return -ENOMEM; - } - sctl_regset.base = mfd->sctl_regs; - sta2x11_sctl_debugfs = debugfs_create_regset32("sta2x11-sctl", - S_IFREG | S_IRUGO, - NULL, &sctl_regset); - return 0; -} +static const char *sta2x11_mfd_names[sta2x11_n_mfd_plat_devs] = { + [sta2x11_sctl] = "sta2x11-sctl", + [sta2x11_apbreg] = "sta2x11-apbreg", + [sta2x11_apb_soc_regs] = "sta2x11-apb-soc-regs", +}; -static int sta2x11_apbreg_probe(struct platform_device *dev) +/* Probe for the three platform devices */ + +static int sta2x11_mfd_platform_probe(struct platform_device *dev, + enum sta2x11_mfd_plat_dev index) { struct pci_dev **pdev; struct sta2x11_mfd *mfd; struct resource *res; + const char *name = sta2x11_mfd_names[index]; + struct debugfs_regset32 *regset = sta2x11_mfd_regset[index]; pdev = dev->dev.platform_data; - dev_dbg(&dev->dev, "%s: pdata is %p\n", __func__, pdev); - dev_dbg(&dev->dev, "%s: *pdata is %p\n", __func__, *pdev); - mfd = sta2x11_mfd_find(*pdev); if (!mfd) return -ENODEV; @@ -233,25 +261,37 @@ static int sta2x11_apbreg_probe(struct platform_device *dev) if (!res) return -ENOMEM; - if (!request_mem_region(res->start, resource_size(res), - "sta2x11-apbreg")) + if (!request_mem_region(res->start, resource_size(res), name)) return -EBUSY; - mfd->apbreg_regs = ioremap(res->start, resource_size(res)); - if (!mfd->apbreg_regs) { + mfd->regs[index] = ioremap(res->start, resource_size(res)); + if (!mfd->regs[index]) { release_mem_region(res->start, resource_size(res)); return -ENOMEM; } - dev_dbg(&dev->dev, "%s: regbase %p\n", __func__, mfd->apbreg_regs); - - apbreg_regset.base = mfd->apbreg_regs; - sta2x11_apbreg_debugfs = debugfs_create_regset32("sta2x11-apbreg", - S_IFREG | S_IRUGO, - NULL, &apbreg_regset); + regset->base = mfd->regs[index]; + sta2x11_mfd_debugfs[index] = debugfs_create_regset32(name, + S_IFREG | S_IRUGO, + NULL, regset); return 0; } -/* The two platform drivers */ +static int sta2x11_sctl_probe(struct platform_device *dev) +{ + return sta2x11_mfd_platform_probe(dev, sta2x11_sctl); +} + +static int sta2x11_apbreg_probe(struct platform_device *dev) +{ + return sta2x11_mfd_platform_probe(dev, sta2x11_apbreg); +} + +static int sta2x11_apb_soc_regs_probe(struct platform_device *dev) +{ + return sta2x11_mfd_platform_probe(dev, sta2x11_apb_soc_regs); +} + +/* The three platform drivers */ static struct platform_driver sta2x11_sctl_platform_driver = { .driver = { .name = "sta2x11-sctl", @@ -280,13 +320,29 @@ static int __init sta2x11_apbreg_init(void) return platform_driver_register(&sta2x11_platform_driver); } +static struct platform_driver sta2x11_apb_soc_regs_platform_driver = { + .driver = { + .name = "sta2x11-apb-soc-regs", + .owner = THIS_MODULE, + }, + .probe = sta2x11_apb_soc_regs_probe, +}; + +static int __init sta2x11_apb_soc_regs_init(void) +{ + pr_info("%s\n", __func__); + return platform_driver_register(&sta2x11_apb_soc_regs_platform_driver); +} + /* - * What follows is the PCI device that hosts the above two pdevs. + * What follows are the PCI devices that host the above pdevs. * Each logic block is 4kB and they are all consecutive: we use this info. */ -/* Bar 0 */ -enum bar0_cells { +/* Mfd 0 device */ + +/* Mfd 0, Bar 0 */ +enum mfd0_bar0_cells { STA2X11_GPIO_0 = 0, STA2X11_GPIO_1, STA2X11_GPIO_2, @@ -295,8 +351,8 @@ enum bar0_cells { STA2X11_SCR, STA2X11_TIME, }; -/* Bar 1 */ -enum bar1_cells { +/* Mfd 0 , Bar 1 */ +enum mfd0_bar1_cells { STA2X11_APBREG = 0, }; #define CELL_4K(_name, _cell) { \ @@ -330,17 +386,46 @@ static const __devinitconst struct resource apbreg_resources[] = { #define DEV(_name, _r) \ { .name = _name, .num_resources = ARRAY_SIZE(_r), .resources = _r, } -static __devinitdata struct mfd_cell sta2x11_mfd_bar0[] = { +static __devinitdata struct mfd_cell sta2x11_mfd0_bar0[] = { DEV("sta2x11-gpio", gpio_resources), /* offset 0: we add pdata later */ DEV("sta2x11-sctl", sctl_resources), DEV("sta2x11-scr", scr_resources), DEV("sta2x11-time", time_resources), }; -static __devinitdata struct mfd_cell sta2x11_mfd_bar1[] = { +static __devinitdata struct mfd_cell sta2x11_mfd0_bar1[] = { DEV("sta2x11-apbreg", apbreg_resources), }; +/* Mfd 1 devices */ + +/* Mfd 1, Bar 0 */ +enum mfd1_bar0_cells { + STA2X11_VIC = 0, +}; + +/* Mfd 1, Bar 1 */ +enum mfd1_bar1_cells { + STA2X11_APB_SOC_REGS = 0, +}; + +static const __devinitconst struct resource vic_resources[] = { + CELL_4K("sta2x11-vic", STA2X11_VIC), +}; + +static const __devinitconst struct resource apb_soc_regs_resources[] = { + CELL_4K("sta2x11-apb-soc-regs", STA2X11_APB_SOC_REGS), +}; + +static __devinitdata struct mfd_cell sta2x11_mfd1_bar0[] = { + DEV("sta2x11-vic", vic_resources), +}; + +static __devinitdata struct mfd_cell sta2x11_mfd1_bar1[] = { + DEV("sta2x11-apb-soc-regs", apb_soc_regs_resources), +}; + + static int sta2x11_mfd_suspend(struct pci_dev *pdev, pm_message_t state) { pci_save_state(pdev); @@ -363,10 +448,63 @@ static int sta2x11_mfd_resume(struct pci_dev *pdev) return 0; } +struct sta2x11_mfd_bar_setup_data { + struct mfd_cell *cells; + int ncells; +}; + +struct sta2x11_mfd_setup_data { + struct sta2x11_mfd_bar_setup_data bars[2]; +}; + +#define STA2X11_MFD0 0 +#define STA2X11_MFD1 1 + +static struct sta2x11_mfd_setup_data mfd_setup_data[] = { + /* Mfd 0: gpio, sctl, scr, timers / apbregs */ + [STA2X11_MFD0] = { + .bars = { + [0] = { + .cells = sta2x11_mfd0_bar0, + .ncells = ARRAY_SIZE(sta2x11_mfd0_bar0), + }, + [1] = { + .cells = sta2x11_mfd0_bar1, + .ncells = ARRAY_SIZE(sta2x11_mfd0_bar1), + }, + }, + }, + /* Mfd 1: vic / apb-soc-regs */ + [STA2X11_MFD1] = { + .bars = { + [0] = { + .cells = sta2x11_mfd1_bar0, + .ncells = ARRAY_SIZE(sta2x11_mfd1_bar0), + }, + [1] = { + .cells = sta2x11_mfd1_bar1, + .ncells = ARRAY_SIZE(sta2x11_mfd1_bar1), + }, + }, + }, +}; + +static void __devinit sta2x11_mfd_setup(struct pci_dev *pdev, + struct sta2x11_mfd_setup_data *sd) +{ + int i, j; + for (i = 0; i < ARRAY_SIZE(sd->bars); i++) + for (j = 0; j < sd->bars[i].ncells; j++) { + sd->bars[i].cells[j].pdata_size = sizeof(pdev); + sd->bars[i].cells[j].platform_data = &pdev; + } +} + static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) { int err, i; + struct sta2x11_mfd_setup_data *setup_data; struct sta2x11_gpio_pdata *gpio_data; dev_info(&pdev->dev, "%s\n", __func__); @@ -381,6 +519,10 @@ static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev, if (err) dev_info(&pdev->dev, "Enable msi failed\n"); + setup_data = pci_id->device == PCI_DEVICE_ID_STMICRO_GPIO ? + &mfd_setup_data[STA2X11_MFD0] : + &mfd_setup_data[STA2X11_MFD1]; + /* Read gpio config data as pci device's platform data */ gpio_data = dev_get_platdata(&pdev->dev); if (!gpio_data) @@ -392,35 +534,23 @@ static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev, pdev, &pdev); /* platform data is the pci device for all of them */ - for (i = 0; i < ARRAY_SIZE(sta2x11_mfd_bar0); i++) { - sta2x11_mfd_bar0[i].pdata_size = sizeof(pdev); - sta2x11_mfd_bar0[i].platform_data = &pdev; - } - sta2x11_mfd_bar1[0].pdata_size = sizeof(pdev); - sta2x11_mfd_bar1[0].platform_data = &pdev; + sta2x11_mfd_setup(pdev, setup_data); /* Record this pdev before mfd_add_devices: their probe looks for it */ sta2x11_mfd_add(pdev, GFP_ATOMIC); - - err = mfd_add_devices(&pdev->dev, -1, - sta2x11_mfd_bar0, - ARRAY_SIZE(sta2x11_mfd_bar0), - &pdev->resource[0], - 0, NULL); - if (err) { - dev_err(&pdev->dev, "mfd_add_devices[0] failed: %d\n", err); - goto err_disable; - } - - err = mfd_add_devices(&pdev->dev, -1, - sta2x11_mfd_bar1, - ARRAY_SIZE(sta2x11_mfd_bar1), - &pdev->resource[1], - 0, NULL); - if (err) { - dev_err(&pdev->dev, "mfd_add_devices[1] failed: %d\n", err); - goto err_disable; + /* Just 2 bars for all mfd's at present */ + for (i = 0; i < 2; i++) { + err = mfd_add_devices(&pdev->dev, -1, + setup_data->bars[i].cells, + setup_data->bars[i].ncells, + &pdev->resource[i], + 0, NULL); + if (err) { + dev_err(&pdev->dev, + "mfd_add_devices[%d] failed: %d\n", i, err); + goto err_disable; + } } return 0; @@ -434,6 +564,7 @@ err_disable: static DEFINE_PCI_DEVICE_TABLE(sta2x11_mfd_tbl) = { {PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_GPIO)}, + {PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_VIC)}, {0,}, }; @@ -459,6 +590,7 @@ static int __init sta2x11_mfd_init(void) */ subsys_initcall(sta2x11_apbreg_init); subsys_initcall(sta2x11_sctl_init); +subsys_initcall(sta2x11_apb_soc_regs_init); rootfs_initcall(sta2x11_mfd_init); MODULE_LICENSE("GPL v2"); -- cgit v1.1 From d94e25535a7979a6c81922496f475a5dd0e006b4 Mon Sep 17 00:00:00 2001 From: Davide Ciminaghi Date: Fri, 9 Nov 2012 15:19:53 +0100 Subject: mfd: sta2x11-mfd: Add regmap support Signed-off-by: Davide Ciminaghi Acked-by: Alessandro Rubini Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 1 + drivers/mfd/sta2x11-mfd.c | 234 +++++++++++++++++++++++++--------------------- 2 files changed, 130 insertions(+), 105 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index b280639..59359a7 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1046,6 +1046,7 @@ config MFD_STA2X11 bool "STA2X11 multi function device support" depends on STA2X11 select MFD_CORE + select REGMAP_MMIO config MFD_SYSCON bool "System Controller Register R/W Based on Regmap" diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index 9e01b84..0cac201 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -27,17 +27,25 @@ #include #include #include -#include #include #include #include #include +#include #include +static inline int __reg_within_range(unsigned int r, + unsigned int start, + unsigned int end) +{ + return ((r >= start) && (r <= end)); +} + /* This describes STA2X11 MFD chip for us, we may have several */ struct sta2x11_mfd { struct sta2x11_instance *instance; + struct regmap *regmap[sta2x11_n_mfd_plat_devs]; spinlock_t lock; struct list_head list; void __iomem *regs[sta2x11_n_mfd_plat_devs]; @@ -127,118 +135,126 @@ u32 __sta2x11_mfd_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val, } EXPORT_SYMBOL(__sta2x11_mfd_mask); -/* Two debugfs files, for our registers (FIXME: one instance only) */ -#define REG(regname) {.name = #regname, .offset = SCTL_ ## regname} -static struct debugfs_reg32 sta2x11_sctl_regs[] = { - REG(SCCTL), REG(ARMCFG), REG(SCPLLCTL), REG(SCPLLFCTRL), - REG(SCRESFRACT), REG(SCRESCTRL1), REG(SCRESXTRL2), REG(SCPEREN0), - REG(SCPEREN1), REG(SCPEREN2), REG(SCGRST), REG(SCPCIPMCR1), - REG(SCPCIPMCR2), REG(SCPCIPMSR1), REG(SCPCIPMSR2), REG(SCPCIPMSR3), - REG(SCINTREN), REG(SCRISR), REG(SCCLKSTAT0), REG(SCCLKSTAT1), - REG(SCCLKSTAT2), REG(SCRSTSTA), -}; -#undef REG +/* + * Special sta2x11-mfd regmap lock/unlock functions + */ -static struct debugfs_regset32 sctl_regset = { - .regs = sta2x11_sctl_regs, - .nregs = ARRAY_SIZE(sta2x11_sctl_regs), -}; +static void sta2x11_regmap_lock(void *__lock) +{ + spinlock_t *lock = __lock; + spin_lock(lock); +} -#define REG(regname) {.name = #regname, .offset = regname} -static struct debugfs_reg32 sta2x11_apbreg_regs[] = { - REG(APBREG_BSR), REG(APBREG_PAER), REG(APBREG_PWAC), REG(APBREG_PRAC), - REG(APBREG_PCG), REG(APBREG_PUR), REG(APBREG_EMU_PCG), -}; -#undef REG +static void sta2x11_regmap_unlock(void *__lock) +{ + spinlock_t *lock = __lock; + spin_unlock(lock); +} -static struct debugfs_regset32 apbreg_regset = { - .regs = sta2x11_apbreg_regs, - .nregs = ARRAY_SIZE(sta2x11_apbreg_regs), +static const char *sta2x11_mfd_names[sta2x11_n_mfd_plat_devs] = { + [sta2x11_sctl] = "sta2x11-sctl", + [sta2x11_apbreg] = "sta2x11-apbreg", + [sta2x11_apb_soc_regs] = "sta2x11-apb-soc-regs", }; -#define REG(regname) {.name = #regname, .offset = regname} -static struct debugfs_reg32 sta2x11_apb_soc_regs_regs[] = { - REG(PCIE_EP1_FUNC3_0_INTR_REG), REG(PCIE_EP1_FUNC7_4_INTR_REG), - REG(PCIE_EP2_FUNC3_0_INTR_REG), REG(PCIE_EP2_FUNC7_4_INTR_REG), - REG(PCIE_EP3_FUNC3_0_INTR_REG), REG(PCIE_EP3_FUNC7_4_INTR_REG), - REG(PCIE_EP4_FUNC3_0_INTR_REG), REG(PCIE_EP4_FUNC7_4_INTR_REG), - REG(PCIE_INTR_ENABLE0_REG), REG(PCIE_INTR_ENABLE1_REG), - REG(PCIE_EP1_FUNC_TC_REG), REG(PCIE_EP2_FUNC_TC_REG), - REG(PCIE_EP3_FUNC_TC_REG), REG(PCIE_EP4_FUNC_TC_REG), - REG(PCIE_EP1_FUNC_F_REG), REG(PCIE_EP2_FUNC_F_REG), - REG(PCIE_EP3_FUNC_F_REG), REG(PCIE_EP4_FUNC_F_REG), - REG(PCIE_PAB_AMBA_SW_RST_REG), REG(PCIE_PM_STATUS_0_PORT_0_4), - REG(PCIE_PM_STATUS_7_0_EP1), REG(PCIE_PM_STATUS_7_0_EP2), - REG(PCIE_PM_STATUS_7_0_EP3), REG(PCIE_PM_STATUS_7_0_EP4), - REG(PCIE_DEV_ID_0_EP1_REG), REG(PCIE_CC_REV_ID_0_EP1_REG), - REG(PCIE_DEV_ID_1_EP1_REG), REG(PCIE_CC_REV_ID_1_EP1_REG), - REG(PCIE_DEV_ID_2_EP1_REG), REG(PCIE_CC_REV_ID_2_EP1_REG), - REG(PCIE_DEV_ID_3_EP1_REG), REG(PCIE_CC_REV_ID_3_EP1_REG), - REG(PCIE_DEV_ID_4_EP1_REG), REG(PCIE_CC_REV_ID_4_EP1_REG), - REG(PCIE_DEV_ID_5_EP1_REG), REG(PCIE_CC_REV_ID_5_EP1_REG), - REG(PCIE_DEV_ID_6_EP1_REG), REG(PCIE_CC_REV_ID_6_EP1_REG), - REG(PCIE_DEV_ID_7_EP1_REG), REG(PCIE_CC_REV_ID_7_EP1_REG), - REG(PCIE_DEV_ID_0_EP2_REG), REG(PCIE_CC_REV_ID_0_EP2_REG), - REG(PCIE_DEV_ID_1_EP2_REG), REG(PCIE_CC_REV_ID_1_EP2_REG), - REG(PCIE_DEV_ID_2_EP2_REG), REG(PCIE_CC_REV_ID_2_EP2_REG), - REG(PCIE_DEV_ID_3_EP2_REG), REG(PCIE_CC_REV_ID_3_EP2_REG), - REG(PCIE_DEV_ID_4_EP2_REG), REG(PCIE_CC_REV_ID_4_EP2_REG), - REG(PCIE_DEV_ID_5_EP2_REG), REG(PCIE_CC_REV_ID_5_EP2_REG), - REG(PCIE_DEV_ID_6_EP2_REG), REG(PCIE_CC_REV_ID_6_EP2_REG), - REG(PCIE_DEV_ID_7_EP2_REG), REG(PCIE_CC_REV_ID_7_EP2_REG), - REG(PCIE_DEV_ID_0_EP3_REG), REG(PCIE_CC_REV_ID_0_EP3_REG), - REG(PCIE_DEV_ID_1_EP3_REG), REG(PCIE_CC_REV_ID_1_EP3_REG), - REG(PCIE_DEV_ID_2_EP3_REG), REG(PCIE_CC_REV_ID_2_EP3_REG), - REG(PCIE_DEV_ID_3_EP3_REG), REG(PCIE_CC_REV_ID_3_EP3_REG), - REG(PCIE_DEV_ID_4_EP3_REG), REG(PCIE_CC_REV_ID_4_EP3_REG), - REG(PCIE_DEV_ID_5_EP3_REG), REG(PCIE_CC_REV_ID_5_EP3_REG), - REG(PCIE_DEV_ID_6_EP3_REG), REG(PCIE_CC_REV_ID_6_EP3_REG), - REG(PCIE_DEV_ID_7_EP3_REG), REG(PCIE_CC_REV_ID_7_EP3_REG), - REG(PCIE_DEV_ID_0_EP4_REG), REG(PCIE_CC_REV_ID_0_EP4_REG), - REG(PCIE_DEV_ID_1_EP4_REG), REG(PCIE_CC_REV_ID_1_EP4_REG), - REG(PCIE_DEV_ID_2_EP4_REG), REG(PCIE_CC_REV_ID_2_EP4_REG), - REG(PCIE_DEV_ID_3_EP4_REG), REG(PCIE_CC_REV_ID_3_EP4_REG), - REG(PCIE_DEV_ID_4_EP4_REG), REG(PCIE_CC_REV_ID_4_EP4_REG), - REG(PCIE_DEV_ID_5_EP4_REG), REG(PCIE_CC_REV_ID_5_EP4_REG), - REG(PCIE_DEV_ID_6_EP4_REG), REG(PCIE_CC_REV_ID_6_EP4_REG), - REG(PCIE_DEV_ID_7_EP4_REG), REG(PCIE_CC_REV_ID_7_EP4_REG), - REG(PCIE_SUBSYS_VEN_ID_REG), REG(PCIE_COMMON_CLOCK_CONFIG_0_4_0), - REG(PCIE_MIPHYP_SSC_EN_REG), REG(PCIE_MIPHYP_ADDR_REG), - REG(PCIE_L1_ASPM_READY_REG), REG(PCIE_EXT_CFG_RDY_REG), - REG(PCIE_SoC_INT_ROUTER_STATUS0_REG), - REG(PCIE_SoC_INT_ROUTER_STATUS1_REG), - REG(PCIE_SoC_INT_ROUTER_STATUS2_REG), - REG(PCIE_SoC_INT_ROUTER_STATUS3_REG), - REG(DMA_IP_CTRL_REG), REG(DISP_BRIDGE_PU_PD_CTRL_REG), - REG(VIP_PU_PD_CTRL_REG), REG(USB_MLB_PU_PD_CTRL_REG), - REG(SDIO_PU_PD_MISCFUNC_CTRL_REG1), REG(SDIO_PU_PD_MISCFUNC_CTRL_REG2), - REG(UART_PU_PD_CTRL_REG), REG(ARM_Lock), REG(SYS_IO_CHAR_REG1), - REG(SYS_IO_CHAR_REG2), REG(SATA_CORE_ID_REG), REG(SATA_CTRL_REG), - REG(I2C_HSFIX_MISC_REG), REG(SPARE2_RESERVED), REG(SPARE3_RESERVED), - REG(MASTER_LOCK_REG), REG(SYSTEM_CONFIG_STATUS_REG), - REG(MSP_CLK_CTRL_REG), REG(COMPENSATION_REG1), REG(COMPENSATION_REG2), - REG(COMPENSATION_REG3), REG(TEST_CTL_REG), +static bool sta2x11_sctl_writeable_reg(struct device *dev, unsigned int reg) +{ + return !__reg_within_range(reg, SCTL_SCPCIECSBRST, SCTL_SCRSTSTA); +} + +static struct regmap_config sta2x11_sctl_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .lock = sta2x11_regmap_lock, + .unlock = sta2x11_regmap_unlock, + .max_register = SCTL_SCRSTSTA, + .writeable_reg = sta2x11_sctl_writeable_reg, }; -#undef REG -static struct debugfs_regset32 apb_soc_regs_regset = { - .regs = sta2x11_apb_soc_regs_regs, - .nregs = ARRAY_SIZE(sta2x11_apb_soc_regs_regs), +static bool sta2x11_apbreg_readable_reg(struct device *dev, unsigned int reg) +{ + /* Two blocks (CAN and MLB, SARAC) 0x100 bytes apart */ + if (reg >= APBREG_BSR_SARAC) + reg -= APBREG_BSR_SARAC; + switch (reg) { + case APBREG_BSR: + case APBREG_PAER: + case APBREG_PWAC: + case APBREG_PRAC: + case APBREG_PCG: + case APBREG_PUR: + case APBREG_EMU_PCG: + return true; + default: + return false; + } +} + +static bool sta2x11_apbreg_writeable_reg(struct device *dev, unsigned int reg) +{ + if (reg >= APBREG_BSR_SARAC) + reg -= APBREG_BSR_SARAC; + if (!sta2x11_apbreg_readable_reg(dev, reg)) + return false; + return reg != APBREG_PAER; +} + +static struct regmap_config sta2x11_apbreg_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .lock = sta2x11_regmap_lock, + .unlock = sta2x11_regmap_unlock, + .max_register = APBREG_EMU_PCG_SARAC, + .readable_reg = sta2x11_apbreg_readable_reg, + .writeable_reg = sta2x11_apbreg_writeable_reg, }; +static bool sta2x11_apb_soc_regs_readable_reg(struct device *dev, + unsigned int reg) +{ + return reg <= PCIE_SoC_INT_ROUTER_STATUS3_REG || + __reg_within_range(reg, DMA_IP_CTRL_REG, SPARE3_RESERVED) || + __reg_within_range(reg, MASTER_LOCK_REG, + SYSTEM_CONFIG_STATUS_REG) || + reg == MSP_CLK_CTRL_REG || + __reg_within_range(reg, COMPENSATION_REG1, TEST_CTL_REG); +} -static struct dentry *sta2x11_mfd_debugfs[sta2x11_n_mfd_plat_devs]; +static bool sta2x11_apb_soc_regs_writeable_reg(struct device *dev, + unsigned int reg) +{ + if (!sta2x11_apb_soc_regs_readable_reg(dev, reg)) + return false; + switch (reg) { + case PCIE_COMMON_CLOCK_CONFIG_0_4_0: + case SYSTEM_CONFIG_STATUS_REG: + case COMPENSATION_REG1: + case PCIE_SoC_INT_ROUTER_STATUS0_REG...PCIE_SoC_INT_ROUTER_STATUS3_REG: + case PCIE_PM_STATUS_0_PORT_0_4...PCIE_PM_STATUS_7_0_EP4: + return false; + default: + return true; + } +} -static struct debugfs_regset32 *sta2x11_mfd_regset[sta2x11_n_mfd_plat_devs] = { - [sta2x11_sctl] = &sctl_regset, - [sta2x11_apbreg] = &apbreg_regset, - [sta2x11_apb_soc_regs] = &apb_soc_regs_regset, +static struct regmap_config sta2x11_apb_soc_regs_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .lock = sta2x11_regmap_lock, + .unlock = sta2x11_regmap_unlock, + .max_register = TEST_CTL_REG, + .readable_reg = sta2x11_apb_soc_regs_readable_reg, + .writeable_reg = sta2x11_apb_soc_regs_writeable_reg, }; -static const char *sta2x11_mfd_names[sta2x11_n_mfd_plat_devs] = { - [sta2x11_sctl] = "sta2x11-sctl", - [sta2x11_apbreg] = "sta2x11-apbreg", - [sta2x11_apb_soc_regs] = "sta2x11-apb-soc-regs", +static struct regmap_config * +sta2x11_mfd_regmap_configs[sta2x11_n_mfd_plat_devs] = { + [sta2x11_sctl] = &sta2x11_sctl_regmap_config, + [sta2x11_apbreg] = &sta2x11_apbreg_regmap_config, + [sta2x11_apb_soc_regs] = &sta2x11_apb_soc_regs_regmap_config, }; /* Probe for the three platform devices */ @@ -250,12 +266,14 @@ static int sta2x11_mfd_platform_probe(struct platform_device *dev, struct sta2x11_mfd *mfd; struct resource *res; const char *name = sta2x11_mfd_names[index]; - struct debugfs_regset32 *regset = sta2x11_mfd_regset[index]; + struct regmap_config *regmap_config = sta2x11_mfd_regmap_configs[index]; pdev = dev->dev.platform_data; mfd = sta2x11_mfd_find(*pdev); if (!mfd) return -ENODEV; + if (!regmap_config) + return -ENODEV; res = platform_get_resource(dev, IORESOURCE_MEM, 0); if (!res) @@ -269,10 +287,16 @@ static int sta2x11_mfd_platform_probe(struct platform_device *dev, release_mem_region(res->start, resource_size(res)); return -ENOMEM; } - regset->base = mfd->regs[index]; - sta2x11_mfd_debugfs[index] = debugfs_create_regset32(name, - S_IFREG | S_IRUGO, - NULL, regset); + regmap_config->lock_arg = &mfd->lock; + /* + No caching, registers could be reached both via regmap and via + void __iomem * + */ + regmap_config->cache_type = REGCACHE_NONE; + mfd->regmap[index] = devm_regmap_init_mmio(&dev->dev, mfd->regs[index], + regmap_config); + WARN_ON(!mfd->regmap[index]); + return 0; } -- cgit v1.1 From 29f5b5a326b44c55e81b15308255ba695fecb323 Mon Sep 17 00:00:00 2001 From: Davide Ciminaghi Date: Fri, 9 Nov 2012 15:19:54 +0100 Subject: mfd: sta2x11-mfd: Add sta2x11_mfd_get_regs_data() function A couple of predefined clocks (mux and gated) need to be initialized with the virtual address of the clock's controlling register and the address of a spinlock used to protect against races. This function exports such data for all the mfd cells. Signed-off-by: Davide Ciminaghi Acked-by: Alessandro Rubini Signed-off-by: Samuel Ortiz --- drivers/mfd/sta2x11-mfd.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index 0cac201..6d12ab4 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -135,6 +135,28 @@ u32 __sta2x11_mfd_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val, } EXPORT_SYMBOL(__sta2x11_mfd_mask); +int sta2x11_mfd_get_regs_data(struct platform_device *dev, + enum sta2x11_mfd_plat_dev index, + void __iomem **regs, + spinlock_t **lock) +{ + struct pci_dev *pdev = *(struct pci_dev **)(dev->dev.platform_data); + struct sta2x11_mfd *mfd; + + if (!pdev) + return -ENODEV; + mfd = sta2x11_mfd_find(pdev); + if (!mfd) + return -ENODEV; + if (index >= sta2x11_n_mfd_plat_devs) + return -ENODEV; + *regs = mfd->regs[index]; + *lock = &mfd->lock[index]; + pr_debug("%s %d *regs = %p\n", __func__, __LINE__, *regs); + return *regs ? 0 : -ENODEV; +} +EXPORT_SYMBOL(sta2x11_mfd_get_regs_data); + /* * Special sta2x11-mfd regmap lock/unlock functions */ -- cgit v1.1 From b18adafccd497245a6bc5b867bf9cba7e01f8729 Mon Sep 17 00:00:00 2001 From: Davide Ciminaghi Date: Fri, 9 Nov 2012 15:19:55 +0100 Subject: mfd: sta2x11-mfd: Use defines for platform devices' names Since there are now many sta2x11-mfd platform devices, using defines for their names looks like a better solution. Signed-off-by: Davide Ciminaghi Acked-by: Alessandro Rubini Signed-off-by: Samuel Ortiz --- drivers/mfd/sta2x11-mfd.c | 42 ++++++++++++++++++++++-------------------- 1 file changed, 22 insertions(+), 20 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index 6d12ab4..8d38ef2 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -174,9 +174,9 @@ static void sta2x11_regmap_unlock(void *__lock) } static const char *sta2x11_mfd_names[sta2x11_n_mfd_plat_devs] = { - [sta2x11_sctl] = "sta2x11-sctl", - [sta2x11_apbreg] = "sta2x11-apbreg", - [sta2x11_apb_soc_regs] = "sta2x11-apb-soc-regs", + [sta2x11_sctl] = STA2X11_MFD_SCTL_NAME, + [sta2x11_apbreg] = STA2X11_MFD_APBREG_NAME, + [sta2x11_apb_soc_regs] = STA2X11_MFD_APB_SOC_REGS_NAME, }; static bool sta2x11_sctl_writeable_reg(struct device *dev, unsigned int reg) @@ -340,7 +340,7 @@ static int sta2x11_apb_soc_regs_probe(struct platform_device *dev) /* The three platform drivers */ static struct platform_driver sta2x11_sctl_platform_driver = { .driver = { - .name = "sta2x11-sctl", + .name = STA2X11_MFD_SCTL_NAME, .owner = THIS_MODULE, }, .probe = sta2x11_sctl_probe, @@ -354,7 +354,7 @@ static int __init sta2x11_sctl_init(void) static struct platform_driver sta2x11_platform_driver = { .driver = { - .name = "sta2x11-apbreg", + .name = STA2X11_MFD_APBREG_NAME, .owner = THIS_MODULE, }, .probe = sta2x11_apbreg_probe, @@ -368,7 +368,7 @@ static int __init sta2x11_apbreg_init(void) static struct platform_driver sta2x11_apb_soc_regs_platform_driver = { .driver = { - .name = "sta2x11-apb-soc-regs", + .name = STA2X11_MFD_APB_SOC_REGS_NAME, .owner = THIS_MODULE, }, .probe = sta2x11_apb_soc_regs_probe, @@ -409,38 +409,40 @@ enum mfd0_bar1_cells { static const __devinitconst struct resource gpio_resources[] = { { - .name = "sta2x11_gpio", /* 4 consecutive cells, 1 driver */ + /* 4 consecutive cells, 1 driver */ + .name = STA2X11_MFD_GPIO_NAME, .start = 0, .end = (4 * 4096) - 1, .flags = IORESOURCE_MEM, } }; static const __devinitconst struct resource sctl_resources[] = { - CELL_4K("sta2x11-sctl", STA2X11_SCTL), + CELL_4K(STA2X11_MFD_SCTL_NAME, STA2X11_SCTL), }; static const __devinitconst struct resource scr_resources[] = { - CELL_4K("sta2x11-scr", STA2X11_SCR), + CELL_4K(STA2X11_MFD_SCR_NAME, STA2X11_SCR), }; static const __devinitconst struct resource time_resources[] = { - CELL_4K("sta2x11-time", STA2X11_TIME), + CELL_4K(STA2X11_MFD_TIME_NAME, STA2X11_TIME), }; static const __devinitconst struct resource apbreg_resources[] = { - CELL_4K("sta2x11-apbreg", STA2X11_APBREG), + CELL_4K(STA2X11_MFD_APBREG_NAME, STA2X11_APBREG), }; #define DEV(_name, _r) \ { .name = _name, .num_resources = ARRAY_SIZE(_r), .resources = _r, } static __devinitdata struct mfd_cell sta2x11_mfd0_bar0[] = { - DEV("sta2x11-gpio", gpio_resources), /* offset 0: we add pdata later */ - DEV("sta2x11-sctl", sctl_resources), - DEV("sta2x11-scr", scr_resources), - DEV("sta2x11-time", time_resources), + /* offset 0: we add pdata later */ + DEV(STA2X11_MFD_GPIO_NAME, gpio_resources), + DEV(STA2X11_MFD_SCTL_NAME, sctl_resources), + DEV(STA2X11_MFD_SCR_NAME, scr_resources), + DEV(STA2X11_MFD_TIME_NAME, time_resources), }; static __devinitdata struct mfd_cell sta2x11_mfd0_bar1[] = { - DEV("sta2x11-apbreg", apbreg_resources), + DEV(STA2X11_MFD_APBREG_NAME, apbreg_resources), }; /* Mfd 1 devices */ @@ -456,19 +458,19 @@ enum mfd1_bar1_cells { }; static const __devinitconst struct resource vic_resources[] = { - CELL_4K("sta2x11-vic", STA2X11_VIC), + CELL_4K(STA2X11_MFD_VIC_NAME, STA2X11_VIC), }; static const __devinitconst struct resource apb_soc_regs_resources[] = { - CELL_4K("sta2x11-apb-soc-regs", STA2X11_APB_SOC_REGS), + CELL_4K(STA2X11_MFD_APB_SOC_REGS_NAME, STA2X11_APB_SOC_REGS), }; static __devinitdata struct mfd_cell sta2x11_mfd1_bar0[] = { - DEV("sta2x11-vic", vic_resources), + DEV(STA2X11_MFD_VIC_NAME, vic_resources), }; static __devinitdata struct mfd_cell sta2x11_mfd1_bar1[] = { - DEV("sta2x11-apb-soc-regs", apb_soc_regs_resources), + DEV(STA2X11_MFD_APB_SOC_REGS_NAME, apb_soc_regs_resources), }; -- cgit v1.1 From 8ec86a302a190bc4864928dd69f3f22066137b68 Mon Sep 17 00:00:00 2001 From: Davide Ciminaghi Date: Fri, 9 Nov 2012 15:19:56 +0100 Subject: mfd: sta2x11-mfd: Only add sta2x11_mfd if it hasn't already been added The pci probe method is called twice now, so we have to call sta2x11_mfd_add() only once to avoid a -EBUSY error. Signed-off-by: Davide Ciminaghi Acked-by: Alessandro Rubini Signed-off-by: Samuel Ortiz --- drivers/mfd/sta2x11-mfd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index 8d38ef2..b981dc4 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -585,7 +585,8 @@ static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev, sta2x11_mfd_setup(pdev, setup_data); /* Record this pdev before mfd_add_devices: their probe looks for it */ - sta2x11_mfd_add(pdev, GFP_ATOMIC); + if (!sta2x11_mfd_find(pdev)) + sta2x11_mfd_add(pdev, GFP_ATOMIC); /* Just 2 bars for all mfd's at present */ for (i = 0; i < 2; i++) { -- cgit v1.1 From 3ce26d2f4b08252edd3ee38a0a6e30a76da9a9fa Mon Sep 17 00:00:00 2001 From: Davide Ciminaghi Date: Fri, 9 Nov 2012 15:19:57 +0100 Subject: mfd: sta2x11-mfd: Do not mind about gpio platform data The gpio platform driver will take care of its platform data, let's not do any checks here. Signed-off-by: Davide Ciminaghi Acked-by: Alessandro Rubini Signed-off-by: Samuel Ortiz --- drivers/mfd/sta2x11-mfd.c | 11 ----------- 1 file changed, 11 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index b981dc4..2c8d65e 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -553,7 +553,6 @@ static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev, { int err, i; struct sta2x11_mfd_setup_data *setup_data; - struct sta2x11_gpio_pdata *gpio_data; dev_info(&pdev->dev, "%s\n", __func__); @@ -571,16 +570,6 @@ static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev, &mfd_setup_data[STA2X11_MFD0] : &mfd_setup_data[STA2X11_MFD1]; - /* Read gpio config data as pci device's platform data */ - gpio_data = dev_get_platdata(&pdev->dev); - if (!gpio_data) - dev_warn(&pdev->dev, "no gpio configuration\n"); - - dev_dbg(&pdev->dev, "%s, gpio_data = %p (%p)\n", __func__, - gpio_data, &gpio_data); - dev_dbg(&pdev->dev, "%s, pdev = %p (%p)\n", __func__, - pdev, &pdev); - /* platform data is the pci device for all of them */ sta2x11_mfd_setup(pdev, setup_data); -- cgit v1.1 From e885ba298098959d03c58d946c6fad8f8ed4a1c7 Mon Sep 17 00:00:00 2001 From: Davide Ciminaghi Date: Fri, 9 Nov 2012 15:19:58 +0100 Subject: mfd: sta2x11-mfd: Use one lock per device instead of one lock per mfd The lock is used to implement atomic operations on each platform device's registers, so it looks reasonable having one lock per device instead of one common lock for all the devices belonging to the same sta2x11 instance. Signed-off-by: Davide Ciminaghi Acked-by: Alessandro Rubini Signed-off-by: Samuel Ortiz --- drivers/mfd/sta2x11-mfd.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index 2c8d65e..da65839 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -46,7 +46,7 @@ static inline int __reg_within_range(unsigned int r, struct sta2x11_mfd { struct sta2x11_instance *instance; struct regmap *regmap[sta2x11_n_mfd_plat_devs]; - spinlock_t lock; + spinlock_t lock[sta2x11_n_mfd_plat_devs]; struct list_head list; void __iomem *regs[sta2x11_n_mfd_plat_devs]; }; @@ -78,6 +78,7 @@ static struct sta2x11_mfd *sta2x11_mfd_find(struct pci_dev *pdev) static int __devinit sta2x11_mfd_add(struct pci_dev *pdev, gfp_t flags) { + int i; struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev); struct sta2x11_instance *instance; @@ -90,7 +91,8 @@ static int __devinit sta2x11_mfd_add(struct pci_dev *pdev, gfp_t flags) if (!mfd) return -ENOMEM; INIT_LIST_HEAD(&mfd->list); - spin_lock_init(&mfd->lock); + for (i = 0; i < ARRAY_SIZE(mfd->lock); i++) + spin_lock_init(&mfd->lock[i]); mfd->instance = instance; list_add(&mfd->list, &sta2x11_mfd_list); return 0; @@ -124,13 +126,13 @@ u32 __sta2x11_mfd_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val, dev_warn(&pdev->dev, ": system ctl not initialized\n"); return 0; } - spin_lock_irqsave(&mfd->lock, flags); + spin_lock_irqsave(&mfd->lock[index], flags); r = readl(regs + reg); r &= ~mask; r |= val; if (mask) writel(r, regs + reg); - spin_unlock_irqrestore(&mfd->lock, flags); + spin_unlock_irqrestore(&mfd->lock[index], flags); return r; } EXPORT_SYMBOL(__sta2x11_mfd_mask); -- cgit v1.1 From dba6c1aeea4dd0e251e41c3f585abf4a06a4f057 Mon Sep 17 00:00:00 2001 From: Davide Ciminaghi Date: Fri, 9 Nov 2012 15:19:59 +0100 Subject: mfd: sta2x11-mfd: Add scr (otp registers) platform driver Signed-off-by: Davide Ciminaghi Acked-by: Alessandro Rubini Signed-off-by: Samuel Ortiz --- drivers/mfd/sta2x11-mfd.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 51 insertions(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index da65839..7365f0f 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -175,10 +175,16 @@ static void sta2x11_regmap_unlock(void *__lock) spin_unlock(lock); } +/* OTP (one time programmable registers do not require locking */ +static void sta2x11_regmap_nolock(void *__lock) +{ +} + static const char *sta2x11_mfd_names[sta2x11_n_mfd_plat_devs] = { [sta2x11_sctl] = STA2X11_MFD_SCTL_NAME, [sta2x11_apbreg] = STA2X11_MFD_APBREG_NAME, [sta2x11_apb_soc_regs] = STA2X11_MFD_APB_SOC_REGS_NAME, + [sta2x11_scr] = STA2X11_MFD_SCR_NAME, }; static bool sta2x11_sctl_writeable_reg(struct device *dev, unsigned int reg) @@ -196,6 +202,28 @@ static struct regmap_config sta2x11_sctl_regmap_config = { .writeable_reg = sta2x11_sctl_writeable_reg, }; +static bool sta2x11_scr_readable_reg(struct device *dev, unsigned int reg) +{ + return (reg == STA2X11_SECR_CR) || + __reg_within_range(reg, STA2X11_SECR_FVR0, STA2X11_SECR_FVR1); +} + +static bool sta2x11_scr_writeable_reg(struct device *dev, unsigned int reg) +{ + return false; +} + +static struct regmap_config sta2x11_scr_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .lock = sta2x11_regmap_nolock, + .unlock = sta2x11_regmap_nolock, + .max_register = STA2X11_SECR_FVR1, + .readable_reg = sta2x11_scr_readable_reg, + .writeable_reg = sta2x11_scr_writeable_reg, +}; + static bool sta2x11_apbreg_readable_reg(struct device *dev, unsigned int reg) { /* Two blocks (CAN and MLB, SARAC) 0x100 bytes apart */ @@ -279,9 +307,10 @@ sta2x11_mfd_regmap_configs[sta2x11_n_mfd_plat_devs] = { [sta2x11_sctl] = &sta2x11_sctl_regmap_config, [sta2x11_apbreg] = &sta2x11_apbreg_regmap_config, [sta2x11_apb_soc_regs] = &sta2x11_apb_soc_regs_regmap_config, + [sta2x11_scr] = &sta2x11_scr_regmap_config, }; -/* Probe for the three platform devices */ +/* Probe for the four platform devices */ static int sta2x11_mfd_platform_probe(struct platform_device *dev, enum sta2x11_mfd_plat_dev index) @@ -339,6 +368,11 @@ static int sta2x11_apb_soc_regs_probe(struct platform_device *dev) return sta2x11_mfd_platform_probe(dev, sta2x11_apb_soc_regs); } +static int sta2x11_scr_probe(struct platform_device *dev) +{ + return sta2x11_mfd_platform_probe(dev, sta2x11_scr); +} + /* The three platform drivers */ static struct platform_driver sta2x11_sctl_platform_driver = { .driver = { @@ -382,6 +416,21 @@ static int __init sta2x11_apb_soc_regs_init(void) return platform_driver_register(&sta2x11_apb_soc_regs_platform_driver); } +static struct platform_driver sta2x11_scr_platform_driver = { + .driver = { + .name = STA2X11_MFD_SCR_NAME, + .owner = THIS_MODULE, + }, + .probe = sta2x11_scr_probe, +}; + +static int __init sta2x11_scr_init(void) +{ + pr_info("%s\n", __func__); + return platform_driver_register(&sta2x11_scr_platform_driver); +} + + /* * What follows are the PCI devices that host the above pdevs. * Each logic block is 4kB and they are all consecutive: we use this info. @@ -631,6 +680,7 @@ static int __init sta2x11_mfd_init(void) subsys_initcall(sta2x11_apbreg_init); subsys_initcall(sta2x11_sctl_init); subsys_initcall(sta2x11_apb_soc_regs_init); +subsys_initcall(sta2x11_scr_init); rootfs_initcall(sta2x11_mfd_init); MODULE_LICENSE("GPL v2"); -- cgit v1.1 From b73df6986bdf0186deeb30b272a9b890065ca223 Mon Sep 17 00:00:00 2001 From: Davide Ciminaghi Date: Fri, 9 Nov 2012 15:20:01 +0100 Subject: mfd: sta2x11-mfd: Add myself to copyright Signed-off-by: Davide Ciminaghi Acked-by: Alessandro Rubini Signed-off-by: Samuel Ortiz --- drivers/mfd/sta2x11-mfd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index 7365f0f..6fb0938 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -1,6 +1,6 @@ /* * Copyright (c) 2009-2011 Wind River Systems, Inc. - * Copyright (c) 2011 ST Microelectronics (Alessandro Rubini) + * Copyright (c) 2011 ST Microelectronics (Alessandro Rubini, Davide Ciminaghi) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as -- cgit v1.1 From a3e2a76e9efac6bf5963800d2a3d88aac614ccf5 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 20 Nov 2012 13:33:18 +0900 Subject: mfd: wm5102: Update maximum register The DSP memories are mapped into the register map, make them readable and writable by updating max_register appropriately. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/wm5102-tables.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index 01b9255..ffeba98 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -2369,12 +2369,14 @@ static bool wm5102_volatile_register(struct device *dev, unsigned int reg) } } +#define WM5102_MAX_REGISTER 0x1a8fff + const struct regmap_config wm5102_spi_regmap = { .reg_bits = 32, .pad_bits = 16, .val_bits = 16, - .max_register = ARIZONA_DSP1_STATUS_2, + .max_register = WM5102_MAX_REGISTER, .readable_reg = wm5102_readable_register, .volatile_reg = wm5102_volatile_register, @@ -2388,7 +2390,7 @@ const struct regmap_config wm5102_i2c_regmap = { .reg_bits = 32, .val_bits = 16, - .max_register = ARIZONA_DSP1_STATUS_2, + .max_register = WM5102_MAX_REGISTER, .readable_reg = wm5102_readable_register, .volatile_reg = wm5102_volatile_register, -- cgit v1.1 From dbc4849db33307c72951e4bd4935fbb8d1fc7b8d Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 20 Nov 2012 13:33:19 +0900 Subject: mfd: wm5102: Mark some more status registers as volatile Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/wm5102-tables.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index ffeba98..1ade455 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -2331,6 +2331,9 @@ static bool wm5102_volatile_register(struct device *dev, unsigned int reg) case ARIZONA_SOFTWARE_RESET: case ARIZONA_DEVICE_REVISION: case ARIZONA_OUTPUT_STATUS_1: + case ARIZONA_RAW_OUTPUT_STATUS_1: + case ARIZONA_SLIMBUS_RX_PORT_STATUS: + case ARIZONA_SLIMBUS_TX_PORT_STATUS: case ARIZONA_SAMPLE_RATE_1_STATUS: case ARIZONA_SAMPLE_RATE_2_STATUS: case ARIZONA_SAMPLE_RATE_3_STATUS: -- cgit v1.1 From edd7eabc85e2f8d76a933b9639bebfe7f98861e4 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 14 Nov 2012 21:09:28 +0530 Subject: mfd: Add TI TPS80031 mfd core driver TPS80031/ TPS80032 Fully Integrated Power Management with Power Path and Battery Charger. The device provides five configurable step-down converters, 11 general purpose LDOs, USB OTG Module, ADC, RTC, 2 PWM, System Voltage Regulator/Battery Charger with Power Path from USB, 32K clock generator. Add the mfd core driver for TPS80031/TPS80032. Signed-off-by: Laxman Dewangan Reviwed-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 14 ++ drivers/mfd/Makefile | 1 + drivers/mfd/tps80031.c | 573 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 588 insertions(+) create mode 100644 drivers/mfd/tps80031.c (limited to 'drivers/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 59359a7..ca633df 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -265,6 +265,20 @@ config MFD_TPS65912_SPI If you say yes here you get support for the TPS65912 series of PM chips with SPI interface. +config MFD_TPS80031 + bool "TI TPS80031/TPS80032 Power Management chips" + depends on I2C=y && GENERIC_HARDIRQS + select MFD_CORE + select REGMAP_I2C + select IRQ_DOMAIN + help + If you say yes here you get support for the Texas Instruments + TPS80031/ TPS80032 Fully Integrated Power Management with Power + Path and Battery Charger. The device provides five configurable + step-down converters, 11 general purpose LDOs, USB OTG Module, + ADC, RTC, 2 PWM, System Voltage Regulator/Battery Charger with + Power Path from USB, 32K clock generator. + config MENELAUS bool "Texas Instruments TWL92330/Menelaus PM chip" depends on I2C=y && ARCH_OMAP2 diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 1c3ee7c..8072460 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -61,6 +61,7 @@ tps65912-objs := tps65912-core.o tps65912-irq.o obj-$(CONFIG_MFD_TPS65912) += tps65912.o obj-$(CONFIG_MFD_TPS65912_I2C) += tps65912-i2c.o obj-$(CONFIG_MFD_TPS65912_SPI) += tps65912-spi.o +obj-$(CONFIG_MFD_TPS80031) += tps80031.o obj-$(CONFIG_MENELAUS) += menelaus.o obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o diff --git a/drivers/mfd/tps80031.c b/drivers/mfd/tps80031.c new file mode 100644 index 0000000..f64005e --- /dev/null +++ b/drivers/mfd/tps80031.c @@ -0,0 +1,573 @@ +/* + * tps80031.c -- TI TPS80031/TPS80032 mfd core driver. + * + * MFD core driver for TI TPS80031/TPS80032 Fully Integrated + * Power Management with Power Path and Battery Charger + * + * Copyright (c) 2012, NVIDIA Corporation. + * + * Author: Laxman Dewangan + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind, + * whether express or implied; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + * 02111-1307, USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static struct resource tps80031_rtc_resources[] = { + { + .start = TPS80031_INT_RTC_ALARM, + .end = TPS80031_INT_RTC_ALARM, + .flags = IORESOURCE_IRQ, + }, +}; + +/* TPS80031 sub mfd devices */ +static struct mfd_cell tps80031_cell[] = { + { + .name = "tps80031-pmic", + }, + { + .name = "tps80031-clock", + }, + { + .name = "tps80031-rtc", + .num_resources = ARRAY_SIZE(tps80031_rtc_resources), + .resources = tps80031_rtc_resources, + }, + { + .name = "tps80031-gpadc", + }, + { + .name = "tps80031-fuel-gauge", + }, + { + .name = "tps80031-charger", + }, +}; + +static int tps80031_slave_address[TPS80031_NUM_SLAVES] = { + TPS80031_I2C_ID0_ADDR, + TPS80031_I2C_ID1_ADDR, + TPS80031_I2C_ID2_ADDR, + TPS80031_I2C_ID3_ADDR, +}; + +struct tps80031_pupd_data { + u8 reg; + u8 pullup_bit; + u8 pulldown_bit; +}; + +#define TPS80031_IRQ(_reg, _mask) \ + { \ + .reg_offset = (TPS80031_INT_MSK_LINE_##_reg) - \ + TPS80031_INT_MSK_LINE_A, \ + .mask = BIT(_mask), \ + } + +static const struct regmap_irq tps80031_main_irqs[] = { + [TPS80031_INT_PWRON] = TPS80031_IRQ(A, 0), + [TPS80031_INT_RPWRON] = TPS80031_IRQ(A, 1), + [TPS80031_INT_SYS_VLOW] = TPS80031_IRQ(A, 2), + [TPS80031_INT_RTC_ALARM] = TPS80031_IRQ(A, 3), + [TPS80031_INT_RTC_PERIOD] = TPS80031_IRQ(A, 4), + [TPS80031_INT_HOT_DIE] = TPS80031_IRQ(A, 5), + [TPS80031_INT_VXX_SHORT] = TPS80031_IRQ(A, 6), + [TPS80031_INT_SPDURATION] = TPS80031_IRQ(A, 7), + [TPS80031_INT_WATCHDOG] = TPS80031_IRQ(B, 0), + [TPS80031_INT_BAT] = TPS80031_IRQ(B, 1), + [TPS80031_INT_SIM] = TPS80031_IRQ(B, 2), + [TPS80031_INT_MMC] = TPS80031_IRQ(B, 3), + [TPS80031_INT_RES] = TPS80031_IRQ(B, 4), + [TPS80031_INT_GPADC_RT] = TPS80031_IRQ(B, 5), + [TPS80031_INT_GPADC_SW2_EOC] = TPS80031_IRQ(B, 6), + [TPS80031_INT_CC_AUTOCAL] = TPS80031_IRQ(B, 7), + [TPS80031_INT_ID_WKUP] = TPS80031_IRQ(C, 0), + [TPS80031_INT_VBUSS_WKUP] = TPS80031_IRQ(C, 1), + [TPS80031_INT_ID] = TPS80031_IRQ(C, 2), + [TPS80031_INT_VBUS] = TPS80031_IRQ(C, 3), + [TPS80031_INT_CHRG_CTRL] = TPS80031_IRQ(C, 4), + [TPS80031_INT_EXT_CHRG] = TPS80031_IRQ(C, 5), + [TPS80031_INT_INT_CHRG] = TPS80031_IRQ(C, 6), + [TPS80031_INT_RES2] = TPS80031_IRQ(C, 7), +}; + +static struct regmap_irq_chip tps80031_irq_chip = { + .name = "tps80031", + .irqs = tps80031_main_irqs, + .num_irqs = ARRAY_SIZE(tps80031_main_irqs), + .num_regs = 3, + .status_base = TPS80031_INT_STS_A, + .mask_base = TPS80031_INT_MSK_LINE_A, +}; + +#define PUPD_DATA(_reg, _pulldown_bit, _pullup_bit) \ + { \ + .reg = TPS80031_CFG_INPUT_PUPD##_reg, \ + .pulldown_bit = _pulldown_bit, \ + .pullup_bit = _pullup_bit, \ + } + +static const struct tps80031_pupd_data tps80031_pupds[] = { + [TPS80031_PREQ1] = PUPD_DATA(1, BIT(0), BIT(1)), + [TPS80031_PREQ2A] = PUPD_DATA(1, BIT(2), BIT(3)), + [TPS80031_PREQ2B] = PUPD_DATA(1, BIT(4), BIT(5)), + [TPS80031_PREQ2C] = PUPD_DATA(1, BIT(6), BIT(7)), + [TPS80031_PREQ3] = PUPD_DATA(2, BIT(0), BIT(1)), + [TPS80031_NRES_WARM] = PUPD_DATA(2, 0, BIT(2)), + [TPS80031_PWM_FORCE] = PUPD_DATA(2, BIT(5), 0), + [TPS80031_CHRG_EXT_CHRG_STATZ] = PUPD_DATA(2, 0, BIT(6)), + [TPS80031_SIM] = PUPD_DATA(3, BIT(0), BIT(1)), + [TPS80031_MMC] = PUPD_DATA(3, BIT(2), BIT(3)), + [TPS80031_GPADC_START] = PUPD_DATA(3, BIT(4), 0), + [TPS80031_DVSI2C_SCL] = PUPD_DATA(4, 0, BIT(0)), + [TPS80031_DVSI2C_SDA] = PUPD_DATA(4, 0, BIT(1)), + [TPS80031_CTLI2C_SCL] = PUPD_DATA(4, 0, BIT(2)), + [TPS80031_CTLI2C_SDA] = PUPD_DATA(4, 0, BIT(3)), +}; +static struct tps80031 *tps80031_power_off_dev; + +int tps80031_ext_power_req_config(struct device *dev, + unsigned long ext_ctrl_flag, int preq_bit, + int state_reg_add, int trans_reg_add) +{ + u8 res_ass_reg = 0; + int preq_mask_bit = 0; + int ret; + + if (!(ext_ctrl_flag & TPS80031_EXT_PWR_REQ)) + return 0; + + if (ext_ctrl_flag & TPS80031_PWR_REQ_INPUT_PREQ1) { + res_ass_reg = TPS80031_PREQ1_RES_ASS_A + (preq_bit >> 3); + preq_mask_bit = 5; + } else if (ext_ctrl_flag & TPS80031_PWR_REQ_INPUT_PREQ2) { + res_ass_reg = TPS80031_PREQ2_RES_ASS_A + (preq_bit >> 3); + preq_mask_bit = 6; + } else if (ext_ctrl_flag & TPS80031_PWR_REQ_INPUT_PREQ3) { + res_ass_reg = TPS80031_PREQ3_RES_ASS_A + (preq_bit >> 3); + preq_mask_bit = 7; + } + + /* Configure REQ_ASS registers */ + ret = tps80031_set_bits(dev, TPS80031_SLAVE_ID1, res_ass_reg, + BIT(preq_bit & 0x7)); + if (ret < 0) { + dev_err(dev, "reg 0x%02x setbit failed, err = %d\n", + res_ass_reg, ret); + return ret; + } + + /* Unmask the PREQ */ + ret = tps80031_clr_bits(dev, TPS80031_SLAVE_ID1, + TPS80031_PHOENIX_MSK_TRANSITION, BIT(preq_mask_bit)); + if (ret < 0) { + dev_err(dev, "reg 0x%02x clrbit failed, err = %d\n", + TPS80031_PHOENIX_MSK_TRANSITION, ret); + return ret; + } + + /* Switch regulator control to resource now */ + if (ext_ctrl_flag & (TPS80031_PWR_REQ_INPUT_PREQ2 | + TPS80031_PWR_REQ_INPUT_PREQ3)) { + ret = tps80031_update(dev, TPS80031_SLAVE_ID1, state_reg_add, + 0x0, TPS80031_STATE_MASK); + if (ret < 0) + dev_err(dev, "reg 0x%02x update failed, err = %d\n", + state_reg_add, ret); + } else { + ret = tps80031_update(dev, TPS80031_SLAVE_ID1, trans_reg_add, + TPS80031_TRANS_SLEEP_OFF, + TPS80031_TRANS_SLEEP_MASK); + if (ret < 0) + dev_err(dev, "reg 0x%02x update failed, err = %d\n", + trans_reg_add, ret); + } + return ret; +} +EXPORT_SYMBOL_GPL(tps80031_ext_power_req_config); + +static void tps80031_power_off(void) +{ + dev_info(tps80031_power_off_dev->dev, "switching off PMU\n"); + tps80031_write(tps80031_power_off_dev->dev, TPS80031_SLAVE_ID1, + TPS80031_PHOENIX_DEV_ON, TPS80031_DEVOFF); +} + +static void tps80031_pupd_init(struct tps80031 *tps80031, + struct tps80031_platform_data *pdata) +{ + struct tps80031_pupd_init_data *pupd_init_data = pdata->pupd_init_data; + int data_size = pdata->pupd_init_data_size; + int i; + + for (i = 0; i < data_size; ++i) { + struct tps80031_pupd_init_data *pupd_init = &pupd_init_data[i]; + const struct tps80031_pupd_data *pupd = + &tps80031_pupds[pupd_init->input_pin]; + u8 update_value = 0; + u8 update_mask = pupd->pulldown_bit | pupd->pullup_bit; + + if (pupd_init->setting == TPS80031_PUPD_PULLDOWN) + update_value = pupd->pulldown_bit; + else if (pupd_init->setting == TPS80031_PUPD_PULLUP) + update_value = pupd->pullup_bit; + + tps80031_update(tps80031->dev, TPS80031_SLAVE_ID1, pupd->reg, + update_value, update_mask); + } +} + +static int tps80031_init_ext_control(struct tps80031 *tps80031, + struct tps80031_platform_data *pdata) +{ + struct device *dev = tps80031->dev; + int ret; + int i; + + /* Clear all external control for this rail */ + for (i = 0; i < 9; ++i) { + ret = tps80031_write(dev, TPS80031_SLAVE_ID1, + TPS80031_PREQ1_RES_ASS_A + i, 0); + if (ret < 0) { + dev_err(dev, "reg 0x%02x write failed, err = %d\n", + TPS80031_PREQ1_RES_ASS_A + i, ret); + return ret; + } + } + + /* Mask the PREQ */ + ret = tps80031_set_bits(dev, TPS80031_SLAVE_ID1, + TPS80031_PHOENIX_MSK_TRANSITION, 0x7 << 5); + if (ret < 0) { + dev_err(dev, "reg 0x%02x set_bits failed, err = %d\n", + TPS80031_PHOENIX_MSK_TRANSITION, ret); + return ret; + } + return ret; +} + +static int __devinit tps80031_irq_init(struct tps80031 *tps80031, int irq, + int irq_base) +{ + struct device *dev = tps80031->dev; + int i, ret; + + /* + * The MASK register used for updating status register when + * interrupt occurs and LINE register used to pass the status + * to actual interrupt line. As per datasheet: + * When INT_MSK_LINE [i] is set to 1, the associated interrupt + * number i is INT line masked, which means that no interrupt is + * generated on the INT line. + * When INT_MSK_LINE [i] is set to 0, the associated interrupt + * number i is line enabled: An interrupt is generated on the + * INT line. + * In any case, the INT_STS [i] status bit may or may not be updated, + * only linked to the INT_MSK_STS [i] configuration register bit. + * + * When INT_MSK_STS [i] is set to 1, the associated interrupt number + * i is status masked, which means that no interrupt is stored in + * the INT_STS[i] status bit. Note that no interrupt number i is + * generated on the INT line, even if the INT_MSK_LINE [i] register + * bit is set to 0. + * When INT_MSK_STS [i] is set to 0, the associated interrupt number i + * is status enabled: An interrupt status is updated in the INT_STS [i] + * register. The interrupt may or may not be generated on the INT line, + * depending on the INT_MSK_LINE [i] configuration register bit. + */ + for (i = 0; i < 3; i++) + tps80031_write(dev, TPS80031_SLAVE_ID2, + TPS80031_INT_MSK_STS_A + i, 0x00); + + ret = regmap_add_irq_chip(tps80031->regmap[TPS80031_SLAVE_ID2], irq, + IRQF_ONESHOT, irq_base, + &tps80031_irq_chip, &tps80031->irq_data); + if (ret < 0) { + dev_err(dev, "add irq failed, err = %d\n", ret); + return ret; + } + return ret; +} + +static bool rd_wr_reg_id0(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TPS80031_SMPS1_CFG_FORCE ... TPS80031_SMPS2_CFG_VOLTAGE: + return true; + default: + return false; + } +} + +static bool rd_wr_reg_id1(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TPS80031_SECONDS_REG ... TPS80031_RTC_RESET_STATUS_REG: + case TPS80031_VALIDITY0 ... TPS80031_VALIDITY7: + case TPS80031_PHOENIX_START_CONDITION ... TPS80031_KEY_PRESS_DUR_CFG: + case TPS80031_SMPS4_CFG_TRANS ... TPS80031_SMPS3_CFG_VOLTAGE: + case TPS80031_BROADCAST_ADDR_ALL ... TPS80031_BROADCAST_ADDR_CLK_RST: + case TPS80031_VANA_CFG_TRANS ... TPS80031_LDO7_CFG_VOLTAGE: + case TPS80031_REGEN1_CFG_TRANS ... TPS80031_TMP_CFG_STATE: + case TPS80031_PREQ1_RES_ASS_A ... TPS80031_PREQ3_RES_ASS_C: + case TPS80031_SMPS_OFFSET ... TPS80031_BATDEBOUNCING: + case TPS80031_CFG_INPUT_PUPD1 ... TPS80031_CFG_SMPS_PD: + case TPS80031_BACKUP_REG: + return true; + default: + return false; + } +} + +static bool is_volatile_reg_id1(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TPS80031_SMPS4_CFG_TRANS ... TPS80031_SMPS3_CFG_VOLTAGE: + case TPS80031_VANA_CFG_TRANS ... TPS80031_LDO7_CFG_VOLTAGE: + case TPS80031_REGEN1_CFG_TRANS ... TPS80031_TMP_CFG_STATE: + case TPS80031_PREQ1_RES_ASS_A ... TPS80031_PREQ3_RES_ASS_C: + case TPS80031_SMPS_OFFSET ... TPS80031_BATDEBOUNCING: + case TPS80031_CFG_INPUT_PUPD1 ... TPS80031_CFG_SMPS_PD: + return true; + default: + return false; + } +} + +static bool rd_wr_reg_id2(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TPS80031_USB_VENDOR_ID_LSB ... TPS80031_USB_OTG_REVISION: + case TPS80031_GPADC_CTRL ... TPS80031_CTRL_P1: + case TPS80031_RTCH0_LSB ... TPS80031_GPCH0_MSB: + case TPS80031_TOGGLE1 ... TPS80031_VIBMODE: + case TPS80031_PWM1ON ... TPS80031_PWM2OFF: + case TPS80031_FG_REG_00 ... TPS80031_FG_REG_11: + case TPS80031_INT_STS_A ... TPS80031_INT_MSK_STS_C: + case TPS80031_CONTROLLER_CTRL2 ... TPS80031_LED_PWM_CTRL2: + return true; + default: + return false; + } +} + +static bool rd_wr_reg_id3(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TPS80031_GPADC_TRIM0 ... TPS80031_GPADC_TRIM18: + return true; + default: + return false; + } +} + +static const struct regmap_config tps80031_regmap_configs[] = { + { + .reg_bits = 8, + .val_bits = 8, + .writeable_reg = rd_wr_reg_id0, + .readable_reg = rd_wr_reg_id0, + .max_register = TPS80031_MAX_REGISTER, + }, + { + .reg_bits = 8, + .val_bits = 8, + .writeable_reg = rd_wr_reg_id1, + .readable_reg = rd_wr_reg_id1, + .volatile_reg = is_volatile_reg_id1, + .max_register = TPS80031_MAX_REGISTER, + }, + { + .reg_bits = 8, + .val_bits = 8, + .writeable_reg = rd_wr_reg_id2, + .readable_reg = rd_wr_reg_id2, + .max_register = TPS80031_MAX_REGISTER, + }, + { + .reg_bits = 8, + .val_bits = 8, + .writeable_reg = rd_wr_reg_id3, + .readable_reg = rd_wr_reg_id3, + .max_register = TPS80031_MAX_REGISTER, + }, +}; + +static int __devinit tps80031_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct tps80031_platform_data *pdata = client->dev.platform_data; + struct tps80031 *tps80031; + int ret; + uint8_t es_version; + uint8_t ep_ver; + int i; + + if (!pdata) { + dev_err(&client->dev, "tps80031 requires platform data\n"); + return -EINVAL; + } + + tps80031 = devm_kzalloc(&client->dev, sizeof(*tps80031), GFP_KERNEL); + if (!tps80031) { + dev_err(&client->dev, "Malloc failed for tps80031\n"); + return -ENOMEM; + } + + for (i = 0; i < TPS80031_NUM_SLAVES; i++) { + if (tps80031_slave_address[i] == client->addr) + tps80031->clients[i] = client; + else + tps80031->clients[i] = i2c_new_dummy(client->adapter, + tps80031_slave_address[i]); + if (!tps80031->clients[i]) { + dev_err(&client->dev, "can't attach client %d\n", i); + ret = -ENOMEM; + goto fail_client_reg; + } + + i2c_set_clientdata(tps80031->clients[i], tps80031); + tps80031->regmap[i] = devm_regmap_init_i2c(tps80031->clients[i], + &tps80031_regmap_configs[i]); + if (IS_ERR(tps80031->regmap[i])) { + ret = PTR_ERR(tps80031->regmap[i]); + dev_err(&client->dev, + "regmap %d init failed, err %d\n", i, ret); + goto fail_client_reg; + } + } + + ret = tps80031_read(&client->dev, TPS80031_SLAVE_ID3, + TPS80031_JTAGVERNUM, &es_version); + if (ret < 0) { + dev_err(&client->dev, + "Silicon version number read failed: %d\n", ret); + goto fail_client_reg; + } + + ret = tps80031_read(&client->dev, TPS80031_SLAVE_ID3, + TPS80031_EPROM_REV, &ep_ver); + if (ret < 0) { + dev_err(&client->dev, + "Silicon eeprom version read failed: %d\n", ret); + goto fail_client_reg; + } + + dev_info(&client->dev, "ES version 0x%02x and EPROM version 0x%02x\n", + es_version, ep_ver); + tps80031->es_version = es_version; + tps80031->dev = &client->dev; + i2c_set_clientdata(client, tps80031); + tps80031->chip_info = id->driver_data; + + ret = tps80031_irq_init(tps80031, client->irq, pdata->irq_base); + if (ret) { + dev_err(&client->dev, "IRQ init failed: %d\n", ret); + goto fail_client_reg; + } + + tps80031_pupd_init(tps80031, pdata); + + tps80031_init_ext_control(tps80031, pdata); + + ret = mfd_add_devices(tps80031->dev, -1, + tps80031_cell, ARRAY_SIZE(tps80031_cell), + NULL, 0, + regmap_irq_get_domain(tps80031->irq_data)); + if (ret < 0) { + dev_err(&client->dev, "mfd_add_devices failed: %d\n", ret); + goto fail_mfd_add; + } + + if (pdata->use_power_off && !pm_power_off) { + tps80031_power_off_dev = tps80031; + pm_power_off = tps80031_power_off; + } + return 0; + +fail_mfd_add: + regmap_del_irq_chip(client->irq, tps80031->irq_data); + +fail_client_reg: + for (i = 0; i < TPS80031_NUM_SLAVES; i++) { + if (tps80031->clients[i] && (tps80031->clients[i] != client)) + i2c_unregister_device(tps80031->clients[i]); + } + return ret; +} + +static int __devexit tps80031_remove(struct i2c_client *client) +{ + struct tps80031 *tps80031 = i2c_get_clientdata(client); + int i; + + if (tps80031_power_off_dev == tps80031) { + tps80031_power_off_dev = NULL; + pm_power_off = NULL; + } + + mfd_remove_devices(tps80031->dev); + + regmap_del_irq_chip(client->irq, tps80031->irq_data); + + for (i = 0; i < TPS80031_NUM_SLAVES; i++) { + if (tps80031->clients[i] != client) + i2c_unregister_device(tps80031->clients[i]); + } + return 0; +} + +static const struct i2c_device_id tps80031_id_table[] = { + { "tps80031", TPS80031 }, + { "tps80032", TPS80032 }, +}; +MODULE_DEVICE_TABLE(i2c, tps80031_id_table); + +static struct i2c_driver tps80031_driver = { + .driver = { + .name = "tps80031", + .owner = THIS_MODULE, + }, + .probe = tps80031_probe, + .remove = __devexit_p(tps80031_remove), + .id_table = tps80031_id_table, +}; + +static int __init tps80031_init(void) +{ + return i2c_add_driver(&tps80031_driver); +} +subsys_initcall(tps80031_init); + +static void __exit tps80031_exit(void) +{ + i2c_del_driver(&tps80031_driver); +} +module_exit(tps80031_exit); + +MODULE_AUTHOR("Laxman Dewangan "); +MODULE_DESCRIPTION("TPS80031 core driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.1 From e2e8ffc97029a1159ac83bce1933a7e539f16a9d Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 20 Nov 2012 08:44:45 +0530 Subject: mfd: Add battery charger in tps65090 sub devs TPS65090 supports the battery charging and hence adding the device name in the list of TPS65090 children. Also remove the tps65090-regulator as it duplicates with tps65090-pmic for regulator driver. Signed-off-by: Laxman Dewangan Signed-off-by: Samuel Ortiz --- drivers/mfd/tps65090.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps65090.c b/drivers/mfd/tps65090.c index 074ae32..9b79d68 100644 --- a/drivers/mfd/tps65090.c +++ b/drivers/mfd/tps65090.c @@ -74,7 +74,7 @@ static struct mfd_cell tps65090s[] = { .name = "tps65090-pmic", }, { - .name = "tps65090-regulator", + .name = "tps65090-charger", }, }; -- cgit v1.1 From e8e6f047e666a1682b59e52637a7acaa8a0b4c89 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 20 Nov 2012 08:44:46 +0530 Subject: mfd: tps65090: Add error prints when mem alloc failed Add error prints when memory allocation failed for tps65090 data. Also cleanups the melloc arguments. Signed-off-by: Laxman Dewangan Signed-off-by: Samuel Ortiz --- drivers/mfd/tps65090.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps65090.c b/drivers/mfd/tps65090.c index 9b79d68..f95f7f6 100644 --- a/drivers/mfd/tps65090.c +++ b/drivers/mfd/tps65090.c @@ -263,10 +263,11 @@ static int __devinit tps65090_i2c_probe(struct i2c_client *client, return -EINVAL; } - tps65090 = devm_kzalloc(&client->dev, sizeof(struct tps65090), - GFP_KERNEL); - if (tps65090 == NULL) + tps65090 = devm_kzalloc(&client->dev, sizeof(*tps65090), GFP_KERNEL); + if (!tps65090) { + dev_err(&client->dev, "mem alloc for tps65090 failed\n"); return -ENOMEM; + } tps65090->client = client; tps65090->dev = &client->dev; -- cgit v1.1 From 3863db3e800c64e21e4effcc3de0f72cdb9b0d77 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 20 Nov 2012 08:44:47 +0530 Subject: mfd: tps65090: Remove unused member of struct tps65090 Remove unused member from tps65090 data structure as these are not used. Signed-off-by: Laxman Dewangan Signed-off-by: Samuel Ortiz --- drivers/mfd/tps65090.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps65090.c b/drivers/mfd/tps65090.c index f95f7f6..3cfc9dc 100644 --- a/drivers/mfd/tps65090.c +++ b/drivers/mfd/tps65090.c @@ -269,12 +269,9 @@ static int __devinit tps65090_i2c_probe(struct i2c_client *client, return -ENOMEM; } - tps65090->client = client; tps65090->dev = &client->dev; i2c_set_clientdata(client, tps65090); - mutex_init(&tps65090->lock); - if (client->irq) { ret = tps65090_irq_init(tps65090, client->irq, pdata->irq_base); if (ret) { @@ -284,8 +281,7 @@ static int __devinit tps65090_i2c_probe(struct i2c_client *client, } } - tps65090->rmap = devm_regmap_init_i2c(tps65090->client, - &tps65090_regmap_config); + tps65090->rmap = devm_regmap_init_i2c(client, &tps65090_regmap_config); if (IS_ERR(tps65090->rmap)) { ret = PTR_ERR(tps65090->rmap); dev_err(&client->dev, "regmap_init failed with err: %d\n", ret); -- cgit v1.1 From b9c79323166530a14c1fa8c10337eeaa54e3f98d Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 20 Nov 2012 08:44:48 +0530 Subject: mfd: tps65090: Move register access APIs to header Since tps65090 register is accessed via regmap, moving the register access APIs to header and making it as inline. Signed-off-by: Laxman Dewangan Signed-off-by: Samuel Ortiz --- drivers/mfd/tps65090.c | 34 ---------------------------------- 1 file changed, 34 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps65090.c b/drivers/mfd/tps65090.c index 3cfc9dc..355a077 100644 --- a/drivers/mfd/tps65090.c +++ b/drivers/mfd/tps65090.c @@ -25,7 +25,6 @@ #include #include #include -#include #include #define NUM_INT_REG 2 @@ -78,39 +77,6 @@ static struct mfd_cell tps65090s[] = { }, }; -int tps65090_write(struct device *dev, int reg, uint8_t val) -{ - struct tps65090 *tps = dev_get_drvdata(dev); - return regmap_write(tps->rmap, reg, val); -} -EXPORT_SYMBOL_GPL(tps65090_write); - -int tps65090_read(struct device *dev, int reg, uint8_t *val) -{ - struct tps65090 *tps = dev_get_drvdata(dev); - unsigned int temp_val; - int ret; - ret = regmap_read(tps->rmap, reg, &temp_val); - if (!ret) - *val = temp_val; - return ret; -} -EXPORT_SYMBOL_GPL(tps65090_read); - -int tps65090_set_bits(struct device *dev, int reg, uint8_t bit_num) -{ - struct tps65090 *tps = dev_get_drvdata(dev); - return regmap_update_bits(tps->rmap, reg, BIT(bit_num), ~0u); -} -EXPORT_SYMBOL_GPL(tps65090_set_bits); - -int tps65090_clr_bits(struct device *dev, int reg, uint8_t bit_num) -{ - struct tps65090 *tps = dev_get_drvdata(dev); - return regmap_update_bits(tps->rmap, reg, BIT(bit_num), 0u); -} -EXPORT_SYMBOL_GPL(tps65090_clr_bits); - static void tps65090_irq_lock(struct irq_data *data) { struct tps65090 *tps65090 = irq_data_get_irq_chip_data(data); -- cgit v1.1 From 759f2598ef3876637e40d99a4ceb7a3d83a4d8d3 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 20 Nov 2012 08:44:49 +0530 Subject: mfd: tps65090: Use regmap irq framework for interrupt support Use the regmap irq framework for implementing TPS65090 interrupt support in place of implementing it locally. Signed-off-by: Laxman Dewangan Signed-off-by: Samuel Ortiz --- drivers/mfd/tps65090.c | 263 ++++++++++++++++++------------------------------- 1 file changed, 98 insertions(+), 165 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps65090.c b/drivers/mfd/tps65090.c index 355a077..2eaae52 100644 --- a/drivers/mfd/tps65090.c +++ b/drivers/mfd/tps65090.c @@ -38,35 +38,21 @@ #define TPS65090_INT_MSK 0x2 #define TPS65090_INT_MSK2 0x3 -struct tps65090_irq_data { - u8 mask_reg; - u8 mask_pos; -}; - -#define TPS65090_IRQ(_reg, _mask_pos) \ - { \ - .mask_reg = (_reg), \ - .mask_pos = (_mask_pos), \ - } - -static const struct tps65090_irq_data tps65090_irqs[] = { - [0] = TPS65090_IRQ(0, 0), - [1] = TPS65090_IRQ(0, 1), - [2] = TPS65090_IRQ(0, 2), - [3] = TPS65090_IRQ(0, 3), - [4] = TPS65090_IRQ(0, 4), - [5] = TPS65090_IRQ(0, 5), - [6] = TPS65090_IRQ(0, 6), - [7] = TPS65090_IRQ(0, 7), - [8] = TPS65090_IRQ(1, 0), - [9] = TPS65090_IRQ(1, 1), - [10] = TPS65090_IRQ(1, 2), - [11] = TPS65090_IRQ(1, 3), - [12] = TPS65090_IRQ(1, 4), - [13] = TPS65090_IRQ(1, 5), - [14] = TPS65090_IRQ(1, 6), - [15] = TPS65090_IRQ(1, 7), -}; +#define TPS65090_INT1_MASK_VAC_STATUS_CHANGE 1 +#define TPS65090_INT1_MASK_VSYS_STATUS_CHANGE 2 +#define TPS65090_INT1_MASK_BAT_STATUS_CHANGE 3 +#define TPS65090_INT1_MASK_CHARGING_STATUS_CHANGE 4 +#define TPS65090_INT1_MASK_CHARGING_COMPLETE 5 +#define TPS65090_INT1_MASK_OVERLOAD_DCDC1 6 +#define TPS65090_INT1_MASK_OVERLOAD_DCDC2 7 +#define TPS65090_INT2_MASK_OVERLOAD_DCDC3 0 +#define TPS65090_INT2_MASK_OVERLOAD_FET1 1 +#define TPS65090_INT2_MASK_OVERLOAD_FET2 2 +#define TPS65090_INT2_MASK_OVERLOAD_FET3 3 +#define TPS65090_INT2_MASK_OVERLOAD_FET4 4 +#define TPS65090_INT2_MASK_OVERLOAD_FET5 5 +#define TPS65090_INT2_MASK_OVERLOAD_FET6 6 +#define TPS65090_INT2_MASK_OVERLOAD_FET7 7 static struct mfd_cell tps65090s[] = { { @@ -77,132 +63,77 @@ static struct mfd_cell tps65090s[] = { }, }; -static void tps65090_irq_lock(struct irq_data *data) -{ - struct tps65090 *tps65090 = irq_data_get_irq_chip_data(data); - - mutex_lock(&tps65090->irq_lock); -} - -static void tps65090_irq_mask(struct irq_data *irq_data) -{ - struct tps65090 *tps65090 = irq_data_get_irq_chip_data(irq_data); - unsigned int __irq = irq_data->hwirq; - const struct tps65090_irq_data *data = &tps65090_irqs[__irq]; - - tps65090_set_bits(tps65090->dev, (TPS65090_INT_MSK + data->mask_reg), - data->mask_pos); -} - -static void tps65090_irq_unmask(struct irq_data *irq_data) -{ - struct tps65090 *tps65090 = irq_data_get_irq_chip_data(irq_data); - unsigned int __irq = irq_data->irq - tps65090->irq_base; - const struct tps65090_irq_data *data = &tps65090_irqs[__irq]; - - tps65090_clr_bits(tps65090->dev, (TPS65090_INT_MSK + data->mask_reg), - data->mask_pos); -} - -static void tps65090_irq_sync_unlock(struct irq_data *data) -{ - struct tps65090 *tps65090 = irq_data_get_irq_chip_data(data); - - mutex_unlock(&tps65090->irq_lock); -} - -static irqreturn_t tps65090_irq(int irq, void *data) -{ - struct tps65090 *tps65090 = data; - int ret = 0; - u8 status, mask; - unsigned long int acks = 0; - int i; - - for (i = 0; i < NUM_INT_REG; i++) { - ret = tps65090_read(tps65090->dev, TPS65090_INT_MSK + i, &mask); - if (ret < 0) { - dev_err(tps65090->dev, - "failed to read mask reg [addr:%d]\n", - TPS65090_INT_MSK + i); - return IRQ_NONE; - } - ret = tps65090_read(tps65090->dev, TPS65090_INT_STS + i, - &status); - if (ret < 0) { - dev_err(tps65090->dev, - "failed to read status reg [addr:%d]\n", - TPS65090_INT_STS + i); - return IRQ_NONE; - } - if (status) { - /* Ack only those interrupts which are not masked */ - status &= (~mask); - ret = tps65090_write(tps65090->dev, - TPS65090_INT_STS + i, status); - if (ret < 0) { - dev_err(tps65090->dev, - "failed to write interrupt status\n"); - return IRQ_NONE; - } - acks |= (status << (i * 8)); - } - } - - for_each_set_bit(i, &acks, ARRAY_SIZE(tps65090_irqs)) - handle_nested_irq(tps65090->irq_base + i); - return acks ? IRQ_HANDLED : IRQ_NONE; -} - -static int __devinit tps65090_irq_init(struct tps65090 *tps65090, int irq, - int irq_base) -{ - int i, ret; - - if (!irq_base) { - dev_err(tps65090->dev, "IRQ base not set\n"); - return -EINVAL; - } - - mutex_init(&tps65090->irq_lock); - - for (i = 0; i < NUM_INT_REG; i++) - tps65090_write(tps65090->dev, TPS65090_INT_MSK + i, 0xFF); - - for (i = 0; i < NUM_INT_REG; i++) - tps65090_write(tps65090->dev, TPS65090_INT_STS + i, 0xff); - - tps65090->irq_base = irq_base; - tps65090->irq_chip.name = "tps65090"; - tps65090->irq_chip.irq_mask = tps65090_irq_mask; - tps65090->irq_chip.irq_unmask = tps65090_irq_unmask; - tps65090->irq_chip.irq_bus_lock = tps65090_irq_lock; - tps65090->irq_chip.irq_bus_sync_unlock = tps65090_irq_sync_unlock; - - for (i = 0; i < ARRAY_SIZE(tps65090_irqs); i++) { - int __irq = i + tps65090->irq_base; - irq_set_chip_data(__irq, tps65090); - irq_set_chip_and_handler(__irq, &tps65090->irq_chip, - handle_simple_irq); - irq_set_nested_thread(__irq, 1); -#ifdef CONFIG_ARM - set_irq_flags(__irq, IRQF_VALID); -#endif - } - - ret = request_threaded_irq(irq, NULL, tps65090_irq, IRQF_ONESHOT, - "tps65090", tps65090); - if (!ret) { - device_init_wakeup(tps65090->dev, 1); - enable_irq_wake(irq); - } +static const struct regmap_irq tps65090_irqs[] = { + /* INT1 IRQs*/ + [TPS65090_IRQ_VAC_STATUS_CHANGE] = { + .mask = TPS65090_INT1_MASK_VAC_STATUS_CHANGE, + }, + [TPS65090_IRQ_VSYS_STATUS_CHANGE] = { + .mask = TPS65090_INT1_MASK_VSYS_STATUS_CHANGE, + }, + [TPS65090_IRQ_BAT_STATUS_CHANGE] = { + .mask = TPS65090_INT1_MASK_BAT_STATUS_CHANGE, + }, + [TPS65090_IRQ_CHARGING_STATUS_CHANGE] = { + .mask = TPS65090_INT1_MASK_CHARGING_STATUS_CHANGE, + }, + [TPS65090_IRQ_CHARGING_COMPLETE] = { + .mask = TPS65090_INT1_MASK_CHARGING_COMPLETE, + }, + [TPS65090_IRQ_OVERLOAD_DCDC1] = { + .mask = TPS65090_INT1_MASK_OVERLOAD_DCDC1, + }, + [TPS65090_IRQ_OVERLOAD_DCDC2] = { + .mask = TPS65090_INT1_MASK_OVERLOAD_DCDC2, + }, + /* INT2 IRQs*/ + [TPS65090_IRQ_OVERLOAD_DCDC3] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_DCDC3, + }, + [TPS65090_IRQ_OVERLOAD_FET1] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET1, + }, + [TPS65090_IRQ_OVERLOAD_FET2] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET2, + }, + [TPS65090_IRQ_OVERLOAD_FET3] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET3, + }, + [TPS65090_IRQ_OVERLOAD_FET4] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET4, + }, + [TPS65090_IRQ_OVERLOAD_FET5] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET5, + }, + [TPS65090_IRQ_OVERLOAD_FET6] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET6, + }, + [TPS65090_IRQ_OVERLOAD_FET7] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET7, + }, +}; - return ret; -} +static struct regmap_irq_chip tps65090_irq_chip = { + .name = "tps65090", + .irqs = tps65090_irqs, + .num_irqs = ARRAY_SIZE(tps65090_irqs), + .num_regs = NUM_INT_REG, + .status_base = TPS65090_INT_STS, + .mask_base = TPS65090_INT_MSK, + .mask_invert = true, +}; static bool is_volatile_reg(struct device *dev, unsigned int reg) { - if (reg == TPS65090_INT_STS) + if ((reg == TPS65090_INT_STS) || (reg == TPS65090_INT_STS2)) return true; else return false; @@ -238,24 +169,27 @@ static int __devinit tps65090_i2c_probe(struct i2c_client *client, tps65090->dev = &client->dev; i2c_set_clientdata(client, tps65090); - if (client->irq) { - ret = tps65090_irq_init(tps65090, client->irq, pdata->irq_base); - if (ret) { - dev_err(&client->dev, "IRQ init failed with err: %d\n", - ret); - goto err_exit; - } - } - tps65090->rmap = devm_regmap_init_i2c(client, &tps65090_regmap_config); if (IS_ERR(tps65090->rmap)) { ret = PTR_ERR(tps65090->rmap); dev_err(&client->dev, "regmap_init failed with err: %d\n", ret); - goto err_irq_exit; + return ret; + } + + if (client->irq) { + ret = regmap_add_irq_chip(tps65090->rmap, client->irq, + IRQF_ONESHOT | IRQF_TRIGGER_LOW, pdata->irq_base, + &tps65090_irq_chip, &tps65090->irq_data); + if (ret) { + dev_err(&client->dev, + "IRQ init failed with err: %d\n", ret); + return ret; + } } ret = mfd_add_devices(tps65090->dev, -1, tps65090s, - ARRAY_SIZE(tps65090s), NULL, 0, NULL); + ARRAY_SIZE(tps65090s), NULL, + regmap_irq_chip_get_base(tps65090->irq_data), NULL); if (ret) { dev_err(&client->dev, "add mfd devices failed with err: %d\n", ret); @@ -266,8 +200,7 @@ static int __devinit tps65090_i2c_probe(struct i2c_client *client, err_irq_exit: if (client->irq) - free_irq(client->irq, tps65090); -err_exit: + regmap_del_irq_chip(client->irq, tps65090->irq_data); return ret; } @@ -277,7 +210,7 @@ static int __devexit tps65090_i2c_remove(struct i2c_client *client) mfd_remove_devices(tps65090->dev); if (client->irq) - free_irq(client->irq, tps65090); + regmap_del_irq_chip(client->irq, tps65090->irq_data); return 0; } -- cgit v1.1 From eb433dad48b49f757255f2860db5c2bd61dcae0d Mon Sep 17 00:00:00 2001 From: Colin Foe-Parker Date: Tue, 20 Nov 2012 15:18:44 +0530 Subject: mfd: tps65217: Set PMIC to shutdown on PWR_EN toggle Set tps65217 PMIC status to OFF if power enable toggle is supported. By setting this bit to 1 to enter PMIC to OFF state when PWR_EN pin is pulled low. Also adds a DT flag to specify that device pmic supports shutdown control or not. Signed-off-by: Colin Foe-Parker [anilkumar@ti.com: move the additions to tps65217 MFD driver] Signed-off-by: AnilKumar Ch Signed-off-by: Samuel Ortiz --- drivers/mfd/tps65217.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c index 3fb32e6..c7f17d8 100644 --- a/drivers/mfd/tps65217.c +++ b/drivers/mfd/tps65217.c @@ -160,6 +160,7 @@ static int __devinit tps65217_probe(struct i2c_client *client, unsigned int version; unsigned int chip_id = ids->driver_data; const struct of_device_id *match; + bool status_off = false; int ret; if (client->dev.of_node) { @@ -170,6 +171,8 @@ static int __devinit tps65217_probe(struct i2c_client *client, return -EINVAL; } chip_id = (unsigned int)match->data; + status_off = of_property_read_bool(client->dev.of_node, + "ti,pmic-shutdown-controller"); } if (!chip_id) { @@ -207,6 +210,15 @@ static int __devinit tps65217_probe(struct i2c_client *client, return ret; } + /* Set the PMIC to shutdown on PWR_EN toggle */ + if (status_off) { + ret = tps65217_set_bits(tps, TPS65217_REG_STATUS, + TPS65217_STATUS_OFF, TPS65217_STATUS_OFF, + TPS65217_PROTECT_NONE); + if (ret) + dev_warn(tps->dev, "unable to set the status OFF\n"); + } + dev_info(tps->dev, "TPS65217 ID %#x version 1.%d\n", (version & TPS65217_CHIPID_CHIP_MASK) >> 4, version & TPS65217_CHIPID_REV_MASK); -- cgit v1.1 From 442613f974cd6e2ff6faa4b07215240a970f61e7 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 20 Nov 2012 16:53:47 +0900 Subject: mfd: wm5102: Make FLL NCO test registers readable They contain documented status readback fields. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/wm5102-tables.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index 1ade455..5cb3374 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -1571,6 +1571,7 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg) case ARIZONA_FLL1_CONTROL_5: case ARIZONA_FLL1_CONTROL_6: case ARIZONA_FLL1_LOOP_FILTER_TEST_1: + case ARIZONA_FLL1_NCO_TEST_0: case ARIZONA_FLL1_SYNCHRONISER_1: case ARIZONA_FLL1_SYNCHRONISER_2: case ARIZONA_FLL1_SYNCHRONISER_3: @@ -1586,6 +1587,7 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg) case ARIZONA_FLL2_CONTROL_5: case ARIZONA_FLL2_CONTROL_6: case ARIZONA_FLL2_LOOP_FILTER_TEST_1: + case ARIZONA_FLL2_NCO_TEST_0: case ARIZONA_FLL2_SYNCHRONISER_1: case ARIZONA_FLL2_SYNCHRONISER_2: case ARIZONA_FLL2_SYNCHRONISER_3: @@ -2339,6 +2341,8 @@ static bool wm5102_volatile_register(struct device *dev, unsigned int reg) case ARIZONA_SAMPLE_RATE_3_STATUS: case ARIZONA_HAPTICS_STATUS: case ARIZONA_ASYNC_SAMPLE_RATE_1_STATUS: + case ARIZONA_FLL1_NCO_TEST_0: + case ARIZONA_FLL2_NCO_TEST_0: case ARIZONA_FX_CTRL2: case ARIZONA_INTERRUPT_STATUS_1: case ARIZONA_INTERRUPT_STATUS_2: -- cgit v1.1 From dac98aef59eae72c74d9d2464f389f4def15a347 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 20 Nov 2012 11:19:15 +0530 Subject: mfd: twl6040: Remove duplicate inclusion of linux/err.h linux/err.h was included twice. Signed-off-by: Sachin Kamat Signed-off-by: Samuel Ortiz --- drivers/mfd/twl6040.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c index e5f7b79..583be76 100644 --- a/drivers/mfd/twl6040.c +++ b/drivers/mfd/twl6040.c @@ -37,7 +37,6 @@ #include #include #include -#include #include #include #include -- cgit v1.1 From c7b76dce8ac95fd464bfae741b830d407884c274 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Sun, 18 Nov 2012 18:36:20 +0200 Subject: mfd: Introduce retu-mfd driver Retu is a multi-function device found on Nokia Internet Tablets implementing at least watchdog, RTC, headset detection and power button functionality. This patch implements minimum functionality providing register access, IRQ handling and power off functions. Acked-by: Felipe Balbi Acked-by: Tony Lindgren Signed-off-by: Aaro Koskinen Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 9 ++ drivers/mfd/Makefile | 1 + drivers/mfd/retu-mfd.c | 264 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 274 insertions(+) create mode 100644 drivers/mfd/retu-mfd.c (limited to 'drivers/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index ca633df..f5b839b 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1094,6 +1094,15 @@ config MFD_VIPERBOARD You need to select the mfd cell drivers separately. The drivers do not support all features the board exposes. +config MFD_RETU + tristate "Support for Retu multi-function device" + select MFD_CORE + depends on I2C + select REGMAP_IRQ + help + Retu is a multi-function device found on Nokia Internet Tablets + (770, N800 and N810). + endmenu endif diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 8072460..2689c8a 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -145,3 +145,4 @@ obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o obj-$(CONFIG_MFD_SYSCON) += syscon.o obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o +obj-$(CONFIG_MFD_RETU) += retu-mfd.o diff --git a/drivers/mfd/retu-mfd.c b/drivers/mfd/retu-mfd.c new file mode 100644 index 0000000..7ff4a37 --- /dev/null +++ b/drivers/mfd/retu-mfd.c @@ -0,0 +1,264 @@ +/* + * Retu MFD driver + * + * Copyright (C) 2004, 2005 Nokia Corporation + * + * Based on code written by Juha Yrjölä, David Weinehall and Mikko Ylinen. + * Rewritten by Aaro Koskinen. + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file "COPYING" in the main directory of this + * archive for more details. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* Registers */ +#define RETU_REG_ASICR 0x00 /* ASIC ID and revision */ +#define RETU_REG_ASICR_VILMA (1 << 7) /* Bit indicating Vilma */ +#define RETU_REG_IDR 0x01 /* Interrupt ID */ +#define RETU_REG_IMR 0x02 /* Interrupt mask */ + +/* Interrupt sources */ +#define RETU_INT_PWR 0 /* Power button */ + +struct retu_dev { + struct regmap *regmap; + struct device *dev; + struct mutex mutex; + struct regmap_irq_chip_data *irq_data; +}; + +static struct resource retu_pwrbutton_res[] = { + { + .name = "retu-pwrbutton", + .start = RETU_INT_PWR, + .end = RETU_INT_PWR, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct mfd_cell retu_devs[] = { + { + .name = "retu-wdt" + }, + { + .name = "retu-pwrbutton", + .resources = retu_pwrbutton_res, + .num_resources = ARRAY_SIZE(retu_pwrbutton_res), + } +}; + +static struct regmap_irq retu_irqs[] = { + [RETU_INT_PWR] = { + .mask = 1 << RETU_INT_PWR, + } +}; + +static struct regmap_irq_chip retu_irq_chip = { + .name = "RETU", + .irqs = retu_irqs, + .num_irqs = ARRAY_SIZE(retu_irqs), + .num_regs = 1, + .status_base = RETU_REG_IDR, + .mask_base = RETU_REG_IMR, + .ack_base = RETU_REG_IDR, +}; + +/* Retu device registered for the power off. */ +static struct retu_dev *retu_pm_power_off; + +int retu_read(struct retu_dev *rdev, u8 reg) +{ + int ret; + int value; + + mutex_lock(&rdev->mutex); + ret = regmap_read(rdev->regmap, reg, &value); + mutex_unlock(&rdev->mutex); + + return ret ? ret : value; +} +EXPORT_SYMBOL_GPL(retu_read); + +int retu_write(struct retu_dev *rdev, u8 reg, u16 data) +{ + int ret; + + mutex_lock(&rdev->mutex); + ret = regmap_write(rdev->regmap, reg, data); + mutex_unlock(&rdev->mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(retu_write); + +static void retu_power_off(void) +{ + struct retu_dev *rdev = retu_pm_power_off; + int reg; + + mutex_lock(&retu_pm_power_off->mutex); + + /* Ignore power button state */ + regmap_read(rdev->regmap, RETU_REG_CC1, ®); + regmap_write(rdev->regmap, RETU_REG_CC1, reg | 2); + + /* Expire watchdog immediately */ + regmap_write(rdev->regmap, RETU_REG_WATCHDOG, 0); + + /* Wait for poweroff */ + for (;;) + cpu_relax(); + + mutex_unlock(&retu_pm_power_off->mutex); +} + +static int retu_regmap_read(void *context, const void *reg, size_t reg_size, + void *val, size_t val_size) +{ + int ret; + struct device *dev = context; + struct i2c_client *i2c = to_i2c_client(dev); + + BUG_ON(reg_size != 1 || val_size != 2); + + ret = i2c_smbus_read_word_data(i2c, *(u8 const *)reg); + if (ret < 0) + return ret; + + *(u16 *)val = ret; + return 0; +} + +static int retu_regmap_write(void *context, const void *data, size_t count) +{ + u8 reg; + u16 val; + struct device *dev = context; + struct i2c_client *i2c = to_i2c_client(dev); + + BUG_ON(count != sizeof(reg) + sizeof(val)); + memcpy(®, data, sizeof(reg)); + memcpy(&val, data + sizeof(reg), sizeof(val)); + return i2c_smbus_write_word_data(i2c, reg, val); +} + +static struct regmap_bus retu_bus = { + .read = retu_regmap_read, + .write = retu_regmap_write, + .val_format_endian_default = REGMAP_ENDIAN_NATIVE, +}; + +static struct regmap_config retu_config = { + .reg_bits = 8, + .val_bits = 16, +}; + +static int __devinit retu_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct retu_dev *rdev; + int ret; + + rdev = devm_kzalloc(&i2c->dev, sizeof(*rdev), GFP_KERNEL); + if (rdev == NULL) + return -ENOMEM; + + i2c_set_clientdata(i2c, rdev); + rdev->dev = &i2c->dev; + mutex_init(&rdev->mutex); + rdev->regmap = devm_regmap_init(&i2c->dev, &retu_bus, &i2c->dev, + &retu_config); + if (IS_ERR(rdev->regmap)) + return PTR_ERR(rdev->regmap); + + ret = retu_read(rdev, RETU_REG_ASICR); + if (ret < 0) { + dev_err(rdev->dev, "could not read Retu revision: %d\n", ret); + return ret; + } + + dev_info(rdev->dev, "Retu%s v%d.%d found\n", + (ret & RETU_REG_ASICR_VILMA) ? " & Vilma" : "", + (ret >> 4) & 0x7, ret & 0xf); + + /* Mask all RETU interrupts. */ + ret = retu_write(rdev, RETU_REG_IMR, 0xffff); + if (ret < 0) + return ret; + + ret = regmap_add_irq_chip(rdev->regmap, i2c->irq, IRQF_ONESHOT, -1, + &retu_irq_chip, &rdev->irq_data); + if (ret < 0) + return ret; + + ret = mfd_add_devices(rdev->dev, -1, retu_devs, ARRAY_SIZE(retu_devs), + NULL, regmap_irq_chip_get_base(rdev->irq_data), + NULL); + if (ret < 0) { + regmap_del_irq_chip(i2c->irq, rdev->irq_data); + return ret; + } + + if (!pm_power_off) { + retu_pm_power_off = rdev; + pm_power_off = retu_power_off; + } + + return 0; +} + +static int __devexit retu_remove(struct i2c_client *i2c) +{ + struct retu_dev *rdev = i2c_get_clientdata(i2c); + + if (retu_pm_power_off == rdev) { + pm_power_off = NULL; + retu_pm_power_off = NULL; + } + mfd_remove_devices(rdev->dev); + regmap_del_irq_chip(i2c->irq, rdev->irq_data); + + return 0; +} + +static const struct i2c_device_id retu_id[] = { + { "retu-mfd", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, retu_id); + +static struct i2c_driver retu_driver = { + .driver = { + .name = "retu-mfd", + .owner = THIS_MODULE, + }, + .probe = retu_probe, + .remove = retu_remove, + .id_table = retu_id, +}; +module_i2c_driver(retu_driver); + +MODULE_DESCRIPTION("Retu MFD driver"); +MODULE_AUTHOR("Juha Yrjölä"); +MODULE_AUTHOR("David Weinehall"); +MODULE_AUTHOR("Mikko Ylinen"); +MODULE_AUTHOR("Aaro Koskinen "); +MODULE_LICENSE("GPL"); -- cgit v1.1 From 24ae36f5c285d14f449dd19821aca1097a2a2313 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 13 Nov 2012 09:28:42 +0100 Subject: mfd: twl-core: Register twl4030-madc child only for twl4030 class twl4030-madc driver can only handle twl4030 class MADC. The newer revisions of twl does not have MADC, instead they have different IP called GPADC which is not backward compatible. Acked-by: Tero Kristo Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index 4ae6423..2624668 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -646,7 +646,8 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, return PTR_ERR(child); } - if (IS_ENABLED(CONFIG_TWL4030_MADC) && pdata->madc) { + if (IS_ENABLED(CONFIG_TWL4030_MADC) && pdata->madc && + twl_class_is_4030()) { child = add_child(2, "twl4030_madc", pdata->madc, sizeof(*pdata->madc), true, irq_base + MADC_INTR_OFFSET, 0); -- cgit v1.1 From afc45898f62c7b139fca3cf0b72fb8ec476fee3f Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 13 Nov 2012 09:28:43 +0100 Subject: mfd: twl-core: Support for proper PWM drivers The twl6030-pwm driver is going to be deleted since it was only able to control the Charging indicator LED on the twl6030 PMIC. The new set of drivers are going to provide support for both PWMs and PWM driven LED outputs on TWL4030 and TWL6030 PMICs. The twl-pwm driver will handle the PWMs (2 instance) while the twl-pwmled driver is to control the two LED instance on TWL4030 and to charging indicator LED (1 instance) on TWL6030. Acked-by: Tero Kristo Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl-core.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index 2624668..1dfd583 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -671,8 +671,15 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, return PTR_ERR(child); } - if (IS_ENABLED(CONFIG_PWM_TWL6030) && twl_class_is_6030()) { - child = add_child(TWL6030_MODULE_ID1, "twl6030-pwm", NULL, 0, + if (IS_ENABLED(CONFIG_PWM_TWL)) { + child = add_child(SUB_CHIP_ID1, "twl-pwm", NULL, 0, + false, 0, 0); + if (IS_ERR(child)) + return PTR_ERR(child); + } + + if (IS_ENABLED(CONFIG_PWM_TWL_LED)) { + child = add_child(SUB_CHIP_ID1, "twl-pwmled", NULL, 0, false, 0, 0); if (IS_ERR(child)) return PTR_ERR(child); -- cgit v1.1 From 2473d25a2f61985f8980c7c3d41cb85da1abea0f Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 13 Nov 2012 09:28:44 +0100 Subject: mfd: twl-core: Convert to use regmap for I/O Remove the custom code to do I/O and replace it with standard regmap calls. Reviewed-by: Mark Brown Acked-by: Tero Kristo Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl-core.c | 147 +++++++++++++++++++++++++++---------------------- 1 file changed, 80 insertions(+), 67 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index 1dfd583..5043f505a 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include #include @@ -171,13 +172,7 @@ EXPORT_SYMBOL(twl_rev); /* Structure for each TWL4030/TWL6030 Slave */ struct twl_client { struct i2c_client *client; - u8 address; - - /* max numb of i2c_msg required is for read =2 */ - struct i2c_msg xfer_msg[2]; - - /* To lock access to xfer_msg */ - struct mutex xfer_lock; + struct regmap *regmap; }; static struct twl_client twl_modules[TWL_NUM_SLAVES]; @@ -225,6 +220,33 @@ static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { { 3, TWL4030_BASEADD_SECURED_REG }, }; +static struct regmap_config twl4030_regmap_config[4] = { + { + /* Address 0x48 */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, + { + /* Address 0x49 */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, + { + /* Address 0x4a */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, + { + /* Address 0x4b */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, +}; + static struct twl_mapping twl6030_map[] = { /* * NOTE: don't change this table without updating the @@ -262,6 +284,27 @@ static struct twl_mapping twl6030_map[] = { { SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER }, }; +static struct regmap_config twl6030_regmap_config[3] = { + { + /* Address 0x48 */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, + { + /* Address 0x49 */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, + { + /* Address 0x4a */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, +}; + /*----------------------------------------------------------------------*/ /* Exported Functions */ @@ -283,7 +326,6 @@ int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) int ret; int sid; struct twl_client *twl; - struct i2c_msg *msg; if (unlikely(mod_no > TWL_MODULE_LAST)) { pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); @@ -301,32 +343,14 @@ int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) } twl = &twl_modules[sid]; - mutex_lock(&twl->xfer_lock); - /* - * [MSG1]: fill the register address data - * fill the data Tx buffer - */ - msg = &twl->xfer_msg[0]; - msg->addr = twl->address; - msg->len = num_bytes + 1; - msg->flags = 0; - msg->buf = value; - /* over write the first byte of buffer with the register address */ - *value = twl_map[mod_no].base + reg; - ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1); - mutex_unlock(&twl->xfer_lock); - - /* i2c_transfer returns number of messages transferred */ - if (ret != 1) { - pr_err("%s: i2c_write failed to transfer all messages\n", - DRIVER_NAME); - if (ret < 0) - return ret; - else - return -EIO; - } else { - return 0; - } + ret = regmap_bulk_write(twl->regmap, twl_map[mod_no].base + reg, + &value[1], num_bytes); + + if (ret) + pr_err("%s: Write failed (mod %d, reg 0x%02x count %d)\n", + DRIVER_NAME, mod_no, reg, num_bytes); + + return ret; } EXPORT_SYMBOL(twl_i2c_write); @@ -342,10 +366,8 @@ EXPORT_SYMBOL(twl_i2c_write); int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) { int ret; - u8 val; int sid; struct twl_client *twl; - struct i2c_msg *msg; if (unlikely(mod_no > TWL_MODULE_LAST)) { pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); @@ -363,34 +385,14 @@ int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) } twl = &twl_modules[sid]; - mutex_lock(&twl->xfer_lock); - /* [MSG1] fill the register address data */ - msg = &twl->xfer_msg[0]; - msg->addr = twl->address; - msg->len = 1; - msg->flags = 0; /* Read the register value */ - val = twl_map[mod_no].base + reg; - msg->buf = &val; - /* [MSG2] fill the data rx buffer */ - msg = &twl->xfer_msg[1]; - msg->addr = twl->address; - msg->flags = I2C_M_RD; /* Read the register value */ - msg->len = num_bytes; /* only n bytes */ - msg->buf = value; - ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2); - mutex_unlock(&twl->xfer_lock); - - /* i2c_transfer returns number of messages transferred */ - if (ret != 2) { - pr_err("%s: i2c_read failed to transfer all messages\n", - DRIVER_NAME); - if (ret < 0) - return ret; - else - return -EIO; - } else { - return 0; - } + ret = regmap_bulk_read(twl->regmap, twl_map[mod_no].base + reg, + value, num_bytes); + + if (ret) + pr_err("%s: Read failed (mod %d, reg 0x%02x count %d)\n", + DRIVER_NAME, mod_no, reg, num_bytes); + + return ret; } EXPORT_SYMBOL(twl_i2c_read); @@ -1184,6 +1186,7 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) struct twl4030_platform_data *pdata = client->dev.platform_data; struct device_node *node = client->dev.of_node; struct platform_device *pdev; + struct regmap_config *twl_regmap_config; int irq_base = 0; int status; unsigned i, num_slaves; @@ -1237,22 +1240,23 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) if ((id->driver_data) & TWL6030_CLASS) { twl_id = TWL6030_CLASS_ID; twl_map = &twl6030_map[0]; + twl_regmap_config = twl6030_regmap_config; num_slaves = TWL_NUM_SLAVES - 1; } else { twl_id = TWL4030_CLASS_ID; twl_map = &twl4030_map[0]; + twl_regmap_config = twl4030_regmap_config; num_slaves = TWL_NUM_SLAVES; } for (i = 0; i < num_slaves; i++) { struct twl_client *twl = &twl_modules[i]; - twl->address = client->addr + i; if (i == 0) { twl->client = client; } else { twl->client = i2c_new_dummy(client->adapter, - twl->address); + client->addr + i); if (!twl->client) { dev_err(&client->dev, "can't attach client %d\n", i); @@ -1260,7 +1264,16 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) goto fail; } } - mutex_init(&twl->xfer_lock); + + twl->regmap = devm_regmap_init_i2c(twl->client, + &twl_regmap_config[i]); + if (IS_ERR(twl->regmap)) { + status = PTR_ERR(twl->regmap); + dev_err(&client->dev, + "Failed to allocate regmap %d, err: %d\n", i, + status); + goto fail; + } } inuse = true; -- cgit v1.1 From 14591d888e35c12b15eccf54e490c7769eb6d6d2 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 13 Nov 2012 09:28:45 +0100 Subject: mfd/rtc/gpio: twl: No need to allocate bigger buffer for write Since the twl-core has been converted to use regmap it is no longer needed to allocate bigger buffer for data when writing to twl. CC: Grant Likely CC: Alessandro Zummo Acked-by: Linus Walleij Acked-by: Tero Kristo Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl-core.c | 9 ++------- drivers/mfd/twl4030-irq.c | 6 +++--- drivers/mfd/twl6030-irq.c | 4 ++-- 3 files changed, 7 insertions(+), 12 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index 5043f505a..a55ab15 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -344,7 +344,7 @@ int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) twl = &twl_modules[sid]; ret = regmap_bulk_write(twl->regmap, twl_map[mod_no].base + reg, - &value[1], num_bytes); + value, num_bytes); if (ret) pr_err("%s: Write failed (mod %d, reg 0x%02x count %d)\n", @@ -406,12 +406,7 @@ EXPORT_SYMBOL(twl_i2c_read); */ int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) { - - /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */ - u8 temp_buffer[2] = { 0 }; - /* offset 1 contains the data */ - temp_buffer[1] = value; - return twl_i2c_write(mod_no, temp_buffer, reg, 1); + return twl_i2c_write(mod_no, &value, reg, 1); } EXPORT_SYMBOL(twl_i2c_write_u8); diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c index ad733d7..e900402 100644 --- a/drivers/mfd/twl4030-irq.c +++ b/drivers/mfd/twl4030-irq.c @@ -501,7 +501,7 @@ static void twl4030_sih_bus_sync_unlock(struct irq_data *data) } imr; /* byte[0] gets overwritten as we write ... */ - imr.word = cpu_to_le32(agent->imr << 8); + imr.word = cpu_to_le32(agent->imr); agent->imr_change_pending = false; /* write the whole mask ... simpler than subsetting it */ @@ -526,7 +526,7 @@ static void twl4030_sih_bus_sync_unlock(struct irq_data *data) * any processor on the other IRQ line, EDR registers are * shared. */ - status = twl_i2c_read(sih->module, bytes + 1, + status = twl_i2c_read(sih->module, bytes, sih->edr_offset, sih->bytes_edr); if (status) { pr_err("twl4030: %s, %s --> %d\n", __func__, @@ -538,7 +538,7 @@ static void twl4030_sih_bus_sync_unlock(struct irq_data *data) while (edge_change) { int i = fls(edge_change) - 1; struct irq_data *idata; - int byte = 1 + (i >> 2); + int byte = i >> 2; int off = (i & 0x3) * 2; unsigned int type; diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c index b76902f..277a8db 100644 --- a/drivers/mfd/twl6030-irq.c +++ b/drivers/mfd/twl6030-irq.c @@ -355,7 +355,7 @@ int twl6030_init_irq(struct device *dev, int irq_num) static struct irq_chip twl6030_irq_chip; int status = 0; int i; - u8 mask[4]; + u8 mask[3]; nr_irqs = TWL6030_NR_IRQS; @@ -370,9 +370,9 @@ int twl6030_init_irq(struct device *dev, int irq_num) irq_end = irq_base + nr_irqs; + mask[0] = 0xFF; mask[1] = 0xFF; mask[2] = 0xFF; - mask[3] = 0xFF; /* mask all int lines */ twl_i2c_write(TWL_MODULE_PIH, &mask[0], REG_INT_MSK_LINE_A, 3); -- cgit v1.1 From 2d86ad37ece5fd064aa7c4fba5dd4378679c2cbf Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 13 Nov 2012 09:28:46 +0100 Subject: mfd: twl-core: Clean up and correct child registration Make the twl child registration calls a bit more uniform by always using the SUB_CHIP_ID* define instead of the mixed use of the define and magic number. At the same time correct the following devices so they are registered for the correct parent device (i2c slave): twl4030_wdt is accessible on 0x4b address and not 0x48 twl4030_pwrbutton is accessible on 0x4b address and not 0x49 twl4030-audio is on 0x49 all the time Acked-by: Tero Kristo Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl-core.c | 27 ++++++++++++--------------- 1 file changed, 12 insertions(+), 15 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index a55ab15..d666c9d 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -645,7 +645,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, if (IS_ENABLED(CONFIG_TWL4030_MADC) && pdata->madc && twl_class_is_4030()) { - child = add_child(2, "twl4030_madc", + child = add_child(SUB_CHIP_ID2, "twl4030_madc", pdata->madc, sizeof(*pdata->madc), true, irq_base + MADC_INTR_OFFSET, 0); if (IS_ERR(child)) @@ -661,8 +661,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, * HW security concerns, and "least privilege". */ sub_chip_id = twl_map[TWL_MODULE_RTC].sid; - child = add_child(sub_chip_id, "twl_rtc", - NULL, 0, + child = add_child(sub_chip_id, "twl_rtc", NULL, 0, true, irq_base + RTC_INTR_OFFSET, 0); if (IS_ERR(child)) return PTR_ERR(child); @@ -728,9 +727,8 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, } - child = add_child(0, "twl4030_usb", - pdata->usb, sizeof(*pdata->usb), - true, + child = add_child(SUB_CHIP_ID0, "twl4030_usb", + pdata->usb, sizeof(*pdata->usb), true, /* irq0 = USB_PRES, irq1 = USB */ irq_base + USB_PRES_INTR_OFFSET, irq_base + USB_INTR_OFFSET); @@ -778,9 +776,8 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, pdata->usb->features = features; - child = add_child(0, "twl6030_usb", - pdata->usb, sizeof(*pdata->usb), - true, + child = add_child(SUB_CHIP_ID0, "twl6030_usb", + pdata->usb, sizeof(*pdata->usb), true, /* irq1 = VBUS_PRES, irq0 = USB ID */ irq_base + USBOTG_INTR_OFFSET, irq_base + USB_PRES_INTR_OFFSET); @@ -804,22 +801,22 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, } if (IS_ENABLED(CONFIG_TWL4030_WATCHDOG) && twl_class_is_4030()) { - child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0); + child = add_child(SUB_CHIP_ID3, "twl4030_wdt", NULL, 0, + false, 0, 0); if (IS_ERR(child)) return PTR_ERR(child); } if (IS_ENABLED(CONFIG_INPUT_TWL4030_PWRBUTTON) && twl_class_is_4030()) { - child = add_child(1, "twl4030_pwrbutton", - NULL, 0, true, irq_base + 8 + 0, 0); + child = add_child(SUB_CHIP_ID3, "twl4030_pwrbutton", NULL, 0, + true, irq_base + 8 + 0, 0); if (IS_ERR(child)) return PTR_ERR(child); } if (IS_ENABLED(CONFIG_MFD_TWL4030_AUDIO) && pdata->audio && twl_class_is_4030()) { - sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; - child = add_child(sub_chip_id, "twl4030-audio", + child = add_child(SUB_CHIP_ID1, "twl4030-audio", pdata->audio, sizeof(*pdata->audio), false, 0, 0); if (IS_ERR(child)) @@ -1059,7 +1056,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, if (IS_ENABLED(CONFIG_CHARGER_TWL4030) && pdata->bci && !(features & (TPS_SUBSET | TWL5031))) { - child = add_child(3, "twl4030_bci", + child = add_child(SUB_CHIP_ID3, "twl4030_bci", pdata->bci, sizeof(*pdata->bci), false, /* irq0 = CHG_PRES, irq1 = BCI */ irq_base + BCI_PRES_INTR_OFFSET, -- cgit v1.1 From da059ecfc9f9d98556607c6d6db065aa3b7f162d Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 13 Nov 2012 09:28:48 +0100 Subject: mfd: twl: Convert module id definitions to enums Use enum list for the module definitions (TWL4030_MODULE_*) which will ease up future work with the IDs. At the same time group the IDs in block of five so it is easier to find the ID we are looking for (to count the number they stand for). At the same time define TWL_MODULE_LED so client drivers can switch to use it as soon as it is possible. Acked-by: Tero Kristo Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl-core.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index d666c9d..bb33b52 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -66,9 +66,6 @@ /* Triton Core internal information (BEGIN) */ -/* Last - for index max*/ -#define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG - #define TWL_NUM_SLAVES 4 #define SUB_CHIP_ID0 0 @@ -184,7 +181,7 @@ struct twl_mapping { }; static struct twl_mapping *twl_map; -static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { +static struct twl_mapping twl4030_map[] = { /* * NOTE: don't change this table without updating the * defines for TWL4030_MODULE_* @@ -327,7 +324,7 @@ int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) int sid; struct twl_client *twl; - if (unlikely(mod_no > TWL_MODULE_LAST)) { + if (unlikely(mod_no >= TWL_MODULE_LAST)) { pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); return -EPERM; } @@ -369,7 +366,7 @@ int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) int sid; struct twl_client *twl; - if (unlikely(mod_no > TWL_MODULE_LAST)) { + if (unlikely(mod_no >= TWL_MODULE_LAST)) { pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); return -EPERM; } -- cgit v1.1 From 6691ccd0565954f2275fb10cb5e4f0cef4a9ff64 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 13 Nov 2012 09:28:50 +0100 Subject: mfd: twl-core: re-group the twl_mapping table for easier reading Group the twl_mapping table in 5 lines chunks so it is more easier to find the row we are looking for (if we need to). Acked-by: Tero Kristo Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl-core.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index bb33b52..f857097 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -189,28 +189,29 @@ static struct twl_mapping twl4030_map[] = { */ { 0, TWL4030_BASEADD_USB }, - { 1, TWL4030_BASEADD_AUDIO_VOICE }, { 1, TWL4030_BASEADD_GPIO }, { 1, TWL4030_BASEADD_INTBR }, { 1, TWL4030_BASEADD_PIH }, - { 1, TWL4030_BASEADD_TEST }, + { 1, TWL4030_BASEADD_TEST }, { 2, TWL4030_BASEADD_KEYPAD }, { 2, TWL4030_BASEADD_MADC }, { 2, TWL4030_BASEADD_INTERRUPTS }, { 2, TWL4030_BASEADD_LED }, + { 2, TWL4030_BASEADD_MAIN_CHARGE }, { 2, TWL4030_BASEADD_PRECHARGE }, { 2, TWL4030_BASEADD_PWM0 }, { 2, TWL4030_BASEADD_PWM1 }, { 2, TWL4030_BASEADD_PWMA }, + { 2, TWL4030_BASEADD_PWMB }, { 2, TWL5031_BASEADD_ACCESSORY }, { 2, TWL5031_BASEADD_INTERRUPTS }, - { 3, TWL4030_BASEADD_BACKUP }, { 3, TWL4030_BASEADD_INT }, + { 3, TWL4030_BASEADD_PM_MASTER }, { 3, TWL4030_BASEADD_PM_RECEIVER }, { 3, TWL4030_BASEADD_RTC }, @@ -273,9 +274,9 @@ static struct twl_mapping twl6030_map[] = { { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, + { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER }, { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC }, - { SUB_CHIP_ID0, TWL6030_BASEADD_RTC }, { SUB_CHIP_ID0, TWL6030_BASEADD_MEM }, { SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER }, -- cgit v1.1 From e45342f678d0f08d284358504f995f495fc6f4f1 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 13 Nov 2012 09:28:51 +0100 Subject: mfd: twl4030-madc: Change TWL4030_MODULE_* ids to TWL_MODULE_* To facilitate upcoming cleanup in twl stack. No functional changes. Acked-by: Tero Kristo Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl4030-madc.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl4030-madc.c b/drivers/mfd/twl4030-madc.c index 456ecb5..2baabaa 100644 --- a/drivers/mfd/twl4030-madc.c +++ b/drivers/mfd/twl4030-madc.c @@ -173,7 +173,7 @@ static int twl4030battery_temperature(int raw_volt) volt = (raw_volt * TEMP_STEP_SIZE) / TEMP_PSR_R; /* Getting and calculating the supply current in micro ampers */ - ret = twl_i2c_read_u8(TWL4030_MODULE_MAIN_CHARGE, &val, + ret = twl_i2c_read_u8(TWL_MODULE_MAIN_CHARGE, &val, REG_BCICTL2); if (ret < 0) return ret; @@ -196,7 +196,7 @@ static int twl4030battery_current(int raw_volt) int ret; u8 val; - ret = twl_i2c_read_u8(TWL4030_MODULE_MAIN_CHARGE, &val, + ret = twl_i2c_read_u8(TWL_MODULE_MAIN_CHARGE, &val, TWL4030_BCI_BCICTL1); if (ret) return ret; @@ -635,7 +635,7 @@ static int twl4030_madc_set_current_generator(struct twl4030_madc_data *madc, int ret; u8 regval; - ret = twl_i2c_read_u8(TWL4030_MODULE_MAIN_CHARGE, + ret = twl_i2c_read_u8(TWL_MODULE_MAIN_CHARGE, ®val, TWL4030_BCI_BCICTL1); if (ret) { dev_err(madc->dev, "unable to read BCICTL1 reg 0x%X", @@ -646,7 +646,7 @@ static int twl4030_madc_set_current_generator(struct twl4030_madc_data *madc, regval |= chan ? TWL4030_BCI_ITHEN : TWL4030_BCI_TYPEN; else regval &= chan ? ~TWL4030_BCI_ITHEN : ~TWL4030_BCI_TYPEN; - ret = twl_i2c_write_u8(TWL4030_MODULE_MAIN_CHARGE, + ret = twl_i2c_write_u8(TWL_MODULE_MAIN_CHARGE, regval, TWL4030_BCI_BCICTL1); if (ret) { dev_err(madc->dev, "unable to write BCICTL1 reg 0x%X\n", @@ -668,7 +668,7 @@ static int twl4030_madc_set_power(struct twl4030_madc_data *madc, int on) u8 regval; int ret; - ret = twl_i2c_read_u8(TWL4030_MODULE_MAIN_CHARGE, + ret = twl_i2c_read_u8(TWL_MODULE_MAIN_CHARGE, ®val, TWL4030_MADC_CTRL1); if (ret) { dev_err(madc->dev, "unable to read madc ctrl1 reg 0x%X\n", @@ -725,7 +725,7 @@ static int __devinit twl4030_madc_probe(struct platform_device *pdev) if (ret < 0) goto err_current_generator; - ret = twl_i2c_read_u8(TWL4030_MODULE_MAIN_CHARGE, + ret = twl_i2c_read_u8(TWL_MODULE_MAIN_CHARGE, ®val, TWL4030_BCI_BCICTL1); if (ret) { dev_err(&pdev->dev, "unable to read reg BCI CTL1 0x%X\n", @@ -733,7 +733,7 @@ static int __devinit twl4030_madc_probe(struct platform_device *pdev) goto err_i2c; } regval |= TWL4030_BCI_MESBAT; - ret = twl_i2c_write_u8(TWL4030_MODULE_MAIN_CHARGE, + ret = twl_i2c_write_u8(TWL_MODULE_MAIN_CHARGE, regval, TWL4030_BCI_BCICTL1); if (ret) { dev_err(&pdev->dev, "unable to write reg BCI Ctl1 0x%X\n", -- cgit v1.1 From 4850f1247aa495a664133fb3f6b8139b89b2c6db Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 13 Nov 2012 09:28:52 +0100 Subject: mfd: twl4030-power: Change TWL4030_MODULE_* ids to TWL_MODULE_* To facilitate upcoming cleanup in twl stack. No functional changes. Acked-by: Tero Kristo Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl4030-power.c | 124 ++++++++++++++++++-------------------------- 1 file changed, 51 insertions(+), 73 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c index 79ca33d..4fda77c 100644 --- a/drivers/mfd/twl4030-power.c +++ b/drivers/mfd/twl4030-power.c @@ -128,12 +128,10 @@ static int __devinit twl4030_write_script_byte(u8 address, u8 byte) { int err; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, - R_MEMORY_ADDRESS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, address, R_MEMORY_ADDRESS); if (err) goto out; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, byte, - R_MEMORY_DATA); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, byte, R_MEMORY_DATA); out: return err; } @@ -189,19 +187,16 @@ static int __devinit twl4030_config_wakeup3_sequence(u8 address) u8 data; /* Set SLEEP to ACTIVE SEQ address for P3 */ - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, - R_SEQ_ADD_S2A3); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, address, R_SEQ_ADD_S2A3); if (err) goto out; /* P3 LVL_WAKEUP should be on LEVEL */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data, - R_P3_SW_EVENTS); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &data, R_P3_SW_EVENTS); if (err) goto out; data |= LVL_WAKEUP; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data, - R_P3_SW_EVENTS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, data, R_P3_SW_EVENTS); out: if (err) pr_err("TWL4030 wakeup sequence for P3 config error\n"); @@ -214,43 +209,38 @@ static int __devinit twl4030_config_wakeup12_sequence(u8 address) u8 data; /* Set SLEEP to ACTIVE SEQ address for P1 and P2 */ - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, - R_SEQ_ADD_S2A12); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, address, R_SEQ_ADD_S2A12); if (err) goto out; /* P1/P2 LVL_WAKEUP should be on LEVEL */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data, - R_P1_SW_EVENTS); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &data, R_P1_SW_EVENTS); if (err) goto out; data |= LVL_WAKEUP; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data, - R_P1_SW_EVENTS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, data, R_P1_SW_EVENTS); if (err) goto out; - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data, - R_P2_SW_EVENTS); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &data, R_P2_SW_EVENTS); if (err) goto out; data |= LVL_WAKEUP; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data, - R_P2_SW_EVENTS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, data, R_P2_SW_EVENTS); if (err) goto out; if (machine_is_omap_3430sdp() || machine_is_omap_ldp()) { /* Disabling AC charger effect on sleep-active transitions */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data, - R_CFG_P1_TRANSITION); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &data, + R_CFG_P1_TRANSITION); if (err) goto out; data &= ~(1<<1); - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data , - R_CFG_P1_TRANSITION); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, data, + R_CFG_P1_TRANSITION); if (err) goto out; } @@ -267,8 +257,7 @@ static int __devinit twl4030_config_sleep_sequence(u8 address) int err; /* Set ACTIVE to SLEEP SEQ address in T2 memory*/ - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, - R_SEQ_ADD_A2S); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, address, R_SEQ_ADD_A2S); if (err) pr_err("TWL4030 sleep sequence config error\n"); @@ -282,42 +271,35 @@ static int __devinit twl4030_config_warmreset_sequence(u8 address) u8 rd_data; /* Set WARM RESET SEQ address for P1 */ - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, - R_SEQ_ADD_WARM); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, address, R_SEQ_ADD_WARM); if (err) goto out; /* P1/P2/P3 enable WARMRESET */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data, - R_P1_SW_EVENTS); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &rd_data, R_P1_SW_EVENTS); if (err) goto out; rd_data |= ENABLE_WARMRESET; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data, - R_P1_SW_EVENTS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, rd_data, R_P1_SW_EVENTS); if (err) goto out; - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data, - R_P2_SW_EVENTS); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &rd_data, R_P2_SW_EVENTS); if (err) goto out; rd_data |= ENABLE_WARMRESET; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data, - R_P2_SW_EVENTS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, rd_data, R_P2_SW_EVENTS); if (err) goto out; - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data, - R_P3_SW_EVENTS); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &rd_data, R_P3_SW_EVENTS); if (err) goto out; rd_data |= ENABLE_WARMRESET; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data, - R_P3_SW_EVENTS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, rd_data, R_P3_SW_EVENTS); out: if (err) pr_err("TWL4030 warmreset seq config error\n"); @@ -341,7 +323,7 @@ static int __devinit twl4030_configure_resource(struct twl4030_resconfig *rconfi rconfig_addr = res_config_addrs[rconfig->resource]; /* Set resource group */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &grp, + err = twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &grp, rconfig_addr + DEV_GRP_OFFSET); if (err) { pr_err("TWL4030 Resource %d group could not be read\n", @@ -352,7 +334,7 @@ static int __devinit twl4030_configure_resource(struct twl4030_resconfig *rconfi if (rconfig->devgroup != TWL4030_RESCONFIG_UNDEF) { grp &= ~DEV_GRP_MASK; grp |= rconfig->devgroup << DEV_GRP_SHIFT; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, + err = twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, grp, rconfig_addr + DEV_GRP_OFFSET); if (err < 0) { pr_err("TWL4030 failed to program devgroup\n"); @@ -361,7 +343,7 @@ static int __devinit twl4030_configure_resource(struct twl4030_resconfig *rconfi } /* Set resource types */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &type, + err = twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &type, rconfig_addr + TYPE_OFFSET); if (err < 0) { pr_err("TWL4030 Resource %d type could not be read\n", @@ -379,7 +361,7 @@ static int __devinit twl4030_configure_resource(struct twl4030_resconfig *rconfi type |= rconfig->type2 << TYPE2_SHIFT; } - err = twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, + err = twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, type, rconfig_addr + TYPE_OFFSET); if (err < 0) { pr_err("TWL4030 failed to program resource type\n"); @@ -387,7 +369,7 @@ static int __devinit twl4030_configure_resource(struct twl4030_resconfig *rconfi } /* Set remap states */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &remap, + err = twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &remap, rconfig_addr + REMAP_OFFSET); if (err < 0) { pr_err("TWL4030 Resource %d remap could not be read\n", @@ -405,7 +387,7 @@ static int __devinit twl4030_configure_resource(struct twl4030_resconfig *rconfi remap |= rconfig->remap_sleep << SLEEP_STATE_SHIFT; } - err = twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, + err = twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, remap, rconfig_addr + REMAP_OFFSET); if (err < 0) { @@ -463,49 +445,47 @@ int twl4030_remove_script(u8 flags) { int err = 0; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, - TWL4030_PM_MASTER_KEY_CFG1, - TWL4030_PM_MASTER_PROTECT_KEY); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1, + TWL4030_PM_MASTER_PROTECT_KEY); if (err) { pr_err("twl4030: unable to unlock PROTECT_KEY\n"); return err; } - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, - TWL4030_PM_MASTER_KEY_CFG2, - TWL4030_PM_MASTER_PROTECT_KEY); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2, + TWL4030_PM_MASTER_PROTECT_KEY); if (err) { pr_err("twl4030: unable to unlock PROTECT_KEY\n"); return err; } if (flags & TWL4030_WRST_SCRIPT) { - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, END_OF_SCRIPT, - R_SEQ_ADD_WARM); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, END_OF_SCRIPT, + R_SEQ_ADD_WARM); if (err) return err; } if (flags & TWL4030_WAKEUP12_SCRIPT) { - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, END_OF_SCRIPT, - R_SEQ_ADD_S2A12); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, END_OF_SCRIPT, + R_SEQ_ADD_S2A12); if (err) return err; } if (flags & TWL4030_WAKEUP3_SCRIPT) { - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, END_OF_SCRIPT, - R_SEQ_ADD_S2A3); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, END_OF_SCRIPT, + R_SEQ_ADD_S2A3); if (err) return err; } if (flags & TWL4030_SLEEP_SCRIPT) { - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, END_OF_SCRIPT, - R_SEQ_ADD_A2S); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, END_OF_SCRIPT, + R_SEQ_ADD_A2S); if (err) return err; } - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, - TWL4030_PM_MASTER_PROTECT_KEY); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, 0, + TWL4030_PM_MASTER_PROTECT_KEY); if (err) pr_err("TWL4030 Unable to relock registers\n"); @@ -521,7 +501,7 @@ void twl4030_power_off(void) { int err; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, PWR_DEVOFF, + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, PWR_DEVOFF, TWL4030_PM_MASTER_P1_SW_EVENTS); if (err) pr_err("TWL4030 Unable to power off\n"); @@ -534,15 +514,13 @@ void __devinit twl4030_power_init(struct twl4030_power_data *twl4030_scripts) struct twl4030_resconfig *resconfig; u8 val, address = twl4030_start_script_address; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, - TWL4030_PM_MASTER_KEY_CFG1, - TWL4030_PM_MASTER_PROTECT_KEY); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1, + TWL4030_PM_MASTER_PROTECT_KEY); if (err) goto unlock; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, - TWL4030_PM_MASTER_KEY_CFG2, - TWL4030_PM_MASTER_PROTECT_KEY); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2, + TWL4030_PM_MASTER_PROTECT_KEY); if (err) goto unlock; @@ -567,14 +545,14 @@ void __devinit twl4030_power_init(struct twl4030_power_data *twl4030_scripts) /* Board has to be wired properly to use this feature */ if (twl4030_scripts->use_poweroff && !pm_power_off) { /* Default for SEQ_OFFSYNC is set, lets ensure this */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &val, + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &val, TWL4030_PM_MASTER_CFG_P123_TRANSITION); if (err) { pr_warning("TWL4030 Unable to read registers\n"); } else if (!(val & SEQ_OFFSYNC)) { val |= SEQ_OFFSYNC; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, val, + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, val, TWL4030_PM_MASTER_CFG_P123_TRANSITION); if (err) { pr_err("TWL4030 Unable to setup SEQ_OFFSYNC\n"); @@ -586,8 +564,8 @@ void __devinit twl4030_power_init(struct twl4030_power_data *twl4030_scripts) } relock: - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, - TWL4030_PM_MASTER_PROTECT_KEY); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, 0, + TWL4030_PM_MASTER_PROTECT_KEY); if (err) pr_err("TWL4030 Unable to relock registers\n"); return; -- cgit v1.1 From 6fbc6420b730f32d0088103da0877981da67df39 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 13 Nov 2012 09:28:53 +0100 Subject: mfd: twl4030-irq: Change TWL4030_MODULE_* ids to TWL_MODULE_* To facilitate upcoming cleanup in twl stack. No functional changes. Acked-by: Tero Kristo Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl4030-irq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c index e900402..518da0c 100644 --- a/drivers/mfd/twl4030-irq.c +++ b/drivers/mfd/twl4030-irq.c @@ -295,8 +295,8 @@ static irqreturn_t handle_twl4030_pih(int irq, void *devid) irqreturn_t ret; u8 pih_isr; - ret = twl_i2c_read_u8(TWL4030_MODULE_PIH, &pih_isr, - REG_PIH_ISR_P1); + ret = twl_i2c_read_u8(TWL_MODULE_PIH, &pih_isr, + REG_PIH_ISR_P1); if (ret) { pr_warning("twl4030: I2C error %d reading PIH ISR\n", ret); return IRQ_NONE; -- cgit v1.1 From d640e757949e2991215838c0edbfd6afc37e5b06 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 13 Nov 2012 09:28:54 +0100 Subject: mfd: twl-core: Change TWL4030_MODULE_* ids to TWL_MODULE_* To facilitate upcoming cleanup in twl stack. No functional changes. Acked-by: Tero Kristo Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- drivers/mfd/twl-core.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index f857097..43c7b4c 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -1077,8 +1077,8 @@ static inline int __init protect_pm_master(void) { int e = 0; - e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, - TWL4030_PM_MASTER_PROTECT_KEY); + e = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, 0, + TWL4030_PM_MASTER_PROTECT_KEY); return e; } @@ -1086,12 +1086,10 @@ static inline int __init unprotect_pm_master(void) { int e = 0; - e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, - TWL4030_PM_MASTER_KEY_CFG1, - TWL4030_PM_MASTER_PROTECT_KEY); - e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, - TWL4030_PM_MASTER_KEY_CFG2, - TWL4030_PM_MASTER_PROTECT_KEY); + e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1, + TWL4030_PM_MASTER_PROTECT_KEY); + e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2, + TWL4030_PM_MASTER_PROTECT_KEY); return e; } -- cgit v1.1 From e294bc91760e11d2f1ebbac1d0a979069edf7adb Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Wed, 21 Nov 2012 17:30:50 +0100 Subject: mfd: lpc_ich: Fix resource request for [mem 0x00000000] The older southbridges supported by the lpc_ich driver do not provide memory-mapped space of the root complex. The driver correctly avoids computing the iomem address in this case, yet submits a zeroed resource request anyway (via mfd_add_devices()). Remove the iomem resource from the resource array submitted to the mfd core for the older southbridges. Acked-by: Aaron Sierra Cc: Peter Tyser Signed-off-by: Peter Hurley Signed-off-by: Samuel Ortiz --- drivers/mfd/lpc_ich.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c index a22544f..afb2f77 100644 --- a/drivers/mfd/lpc_ich.c +++ b/drivers/mfd/lpc_ich.c @@ -830,7 +830,10 @@ static int __devinit lpc_ich_init_wdt(struct pci_dev *dev, * we have to read RCBA from PCI Config space 0xf0 and use * it as base. GCS = RCBA + ICH6_GCS(0x3410). */ - if (lpc_chipset_info[id->driver_data].iTCO_version == 2) { + if (lpc_chipset_info[id->driver_data].iTCO_version == 1) { + /* Don't register iomem for TCO ver 1 */ + lpc_ich_cells[LPC_WDT].num_resources--; + } else { pci_read_config_dword(dev, RCBABASE, &base_addr_cfg); base_addr = base_addr_cfg & 0xffffc000; if (!(base_addr_cfg & 1)) { -- cgit v1.1 From 0c418844dce21fa7000b51190f393c7d6a7ee12d Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Mon, 19 Nov 2012 21:04:11 +0100 Subject: mfd: lpc_ich: One uninitialized cell is no error At every boot of an (outdated) laptop lpc_ich prints an error: lpc_ich 0000:00:1f.0: I/O space for GPIO uninitialized But if one looks at lpc_ich's probe function one notices that the code only cares if both lpc_ich_init_wdt() and lpc_ich_init_gpio() fail to add any cells. So stop treating the failure to add a single cell as an error. Those messages can be printed at notice level. And then only warn if no cells were added. Signed-off-by: Paul Bolle Signed-off-by: Samuel Ortiz --- drivers/mfd/lpc_ich.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c index afb2f77..b6dd499 100644 --- a/drivers/mfd/lpc_ich.c +++ b/drivers/mfd/lpc_ich.c @@ -734,7 +734,7 @@ static int __devinit lpc_ich_init_gpio(struct pci_dev *dev, pci_read_config_dword(dev, ACPIBASE, &base_addr_cfg); base_addr = base_addr_cfg & 0x0000ff80; if (!base_addr) { - dev_err(&dev->dev, "I/O space for ACPI uninitialized\n"); + dev_notice(&dev->dev, "I/O space for ACPI uninitialized\n"); lpc_ich_cells[LPC_GPIO].num_resources--; goto gpe0_done; } @@ -760,7 +760,7 @@ gpe0_done: pci_read_config_dword(dev, GPIOBASE, &base_addr_cfg); base_addr = base_addr_cfg & 0x0000ff80; if (!base_addr) { - dev_err(&dev->dev, "I/O space for GPIO uninitialized\n"); + dev_notice(&dev->dev, "I/O space for GPIO uninitialized\n"); ret = -ENODEV; goto gpio_done; } @@ -810,7 +810,7 @@ static int __devinit lpc_ich_init_wdt(struct pci_dev *dev, pci_read_config_dword(dev, ACPIBASE, &base_addr_cfg); base_addr = base_addr_cfg & 0x0000ff80; if (!base_addr) { - dev_err(&dev->dev, "I/O space for ACPI uninitialized\n"); + dev_notice(&dev->dev, "I/O space for ACPI uninitialized\n"); ret = -ENODEV; goto wdt_done; } @@ -837,8 +837,8 @@ static int __devinit lpc_ich_init_wdt(struct pci_dev *dev, pci_read_config_dword(dev, RCBABASE, &base_addr_cfg); base_addr = base_addr_cfg & 0xffffc000; if (!(base_addr_cfg & 1)) { - pr_err("RCBA is disabled by hardware/BIOS, " - "device disabled\n"); + dev_notice(&dev->dev, "RCBA is disabled by " + "hardware/BIOS, device disabled\n"); ret = -ENODEV; goto wdt_done; } @@ -874,6 +874,7 @@ static int __devinit lpc_ich_probe(struct pci_dev *dev, * successfully. */ if (!cell_added) { + dev_warn(&dev->dev, "No MFD cells added\n"); lpc_ich_restore_config_space(dev); return -ENODEV; } -- cgit v1.1 From cb5faba951142fc00c41b680eec7003f21947b92 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 22 Nov 2012 10:40:29 +0530 Subject: mfd: stmpe: Use devm_*() routines This patch frees stmpe driver from tension of freeing resources. devm_* derivatives of multiple routines are used while allocating resources, which would be freed automatically by kernel. Signed-off-by: Viresh Kumar Acked-by: Lee Jones Signed-off-by: Samuel Ortiz --- drivers/mfd/stmpe.c | 60 +++++++++++++++++++---------------------------------- 1 file changed, 21 insertions(+), 39 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index ba157d4..c0df4b9 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -1052,17 +1052,17 @@ int __devinit stmpe_probe(struct stmpe_client_info *ci, int partnum) int ret; if (!pdata) { - if (np) { - pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); - if (!pdata) - return -ENOMEM; - - stmpe_of_probe(pdata, np); - } else + if (!np) return -EINVAL; + + pdata = devm_kzalloc(ci->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + stmpe_of_probe(pdata, np); } - stmpe = kzalloc(sizeof(struct stmpe), GFP_KERNEL); + stmpe = devm_kzalloc(ci->dev, sizeof(struct stmpe), GFP_KERNEL); if (!stmpe) return -ENOMEM; @@ -1084,11 +1084,12 @@ int __devinit stmpe_probe(struct stmpe_client_info *ci, int partnum) ci->init(stmpe); if (pdata->irq_over_gpio) { - ret = gpio_request_one(pdata->irq_gpio, GPIOF_DIR_IN, "stmpe"); + ret = devm_gpio_request_one(ci->dev, pdata->irq_gpio, + GPIOF_DIR_IN, "stmpe"); if (ret) { dev_err(stmpe->dev, "failed to request IRQ GPIO: %d\n", ret); - goto out_free; + return ret; } stmpe->irq = gpio_to_irq(pdata->irq_gpio); @@ -1105,48 +1106,37 @@ int __devinit stmpe_probe(struct stmpe_client_info *ci, int partnum) dev_err(stmpe->dev, "%s does not support no-irq mode!\n", stmpe->variant->name); - ret = -ENODEV; - goto free_gpio; + return -ENODEV; } stmpe->variant = stmpe_noirq_variant_info[stmpe->partnum]; } ret = stmpe_chip_init(stmpe); if (ret) - goto free_gpio; + return ret; if (stmpe->irq >= 0) { ret = stmpe_irq_init(stmpe, np); if (ret) - goto free_gpio; + return ret; - ret = request_threaded_irq(stmpe->irq, NULL, stmpe_irq, - pdata->irq_trigger | IRQF_ONESHOT, + ret = devm_request_threaded_irq(ci->dev, stmpe->irq, NULL, + stmpe_irq, pdata->irq_trigger | IRQF_ONESHOT, "stmpe", stmpe); if (ret) { dev_err(stmpe->dev, "failed to request IRQ: %d\n", ret); - goto free_gpio; + return ret; } } ret = stmpe_devices_init(stmpe); - if (ret) { - dev_err(stmpe->dev, "failed to add children\n"); - goto out_removedevs; - } - - return 0; + if (!ret) + return 0; -out_removedevs: + dev_err(stmpe->dev, "failed to add children\n"); mfd_remove_devices(stmpe->dev); - if (stmpe->irq >= 0) - free_irq(stmpe->irq, stmpe); -free_gpio: - if (pdata->irq_over_gpio) - gpio_free(pdata->irq_gpio); -out_free: - kfree(stmpe); + return ret; } @@ -1154,14 +1144,6 @@ int stmpe_remove(struct stmpe *stmpe) { mfd_remove_devices(stmpe->dev); - if (stmpe->irq >= 0) - free_irq(stmpe->irq, stmpe); - - if (stmpe->pdata->irq_over_gpio) - gpio_free(stmpe->pdata->irq_gpio); - - kfree(stmpe); - return 0; } -- cgit v1.1 From acad189b08456722ca4a8984218d6f38f4563cbc Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Thu, 22 Nov 2012 11:12:04 +0100 Subject: mfd: Add an AS3711 PMIC MFD driver AS3711 is a PMIC with multiple DCDC and LDO power supplies, GPIOs, an RTC, a battery charger and a general purpose ADC. This patch adds support for the MFD with support for a regulator driver and a backlight driver. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 9 +++ drivers/mfd/Makefile | 1 + drivers/mfd/as3711.c | 217 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 227 insertions(+) create mode 100644 drivers/mfd/as3711.c (limited to 'drivers/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index f5b839b..475c266 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1103,6 +1103,15 @@ config MFD_RETU Retu is a multi-function device found on Nokia Internet Tablets (770, N800 and N810). +config MFD_AS3711 + bool "Support for AS3711" + select MFD_CORE + select REGMAP_I2C + select REGMAP_IRQ + depends on I2C=y + help + Support for the AS3711 PMIC from AMS + endmenu endif diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 2689c8a..f2216df 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -146,3 +146,4 @@ obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o obj-$(CONFIG_MFD_SYSCON) += syscon.o obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o obj-$(CONFIG_MFD_RETU) += retu-mfd.o +obj-$(CONFIG_MFD_AS3711) += as3711.o diff --git a/drivers/mfd/as3711.c b/drivers/mfd/as3711.c new file mode 100644 index 0000000..e994c96 --- /dev/null +++ b/drivers/mfd/as3711.c @@ -0,0 +1,217 @@ +/* + * AS3711 PMIC MFC driver + * + * Copyright (C) 2012 Renesas Electronics Corporation + * Author: Guennadi Liakhovetski, + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the version 2 of the GNU General Public License as + * published by the Free Software Foundation + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +enum { + AS3711_REGULATOR, + AS3711_BACKLIGHT, +}; + +/* + * Ok to have it static: it is only used during probing and multiple I2C devices + * cannot be probed simultaneously. Just make sure to avoid stale data. + */ +static struct mfd_cell as3711_subdevs[] = { + [AS3711_REGULATOR] = {.name = "as3711-regulator",}, + [AS3711_BACKLIGHT] = {.name = "as3711-backlight",}, +}; + +static bool as3711_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case AS3711_GPIO_SIGNAL_IN: + case AS3711_INTERRUPT_STATUS_1: + case AS3711_INTERRUPT_STATUS_2: + case AS3711_INTERRUPT_STATUS_3: + case AS3711_CHARGER_STATUS_1: + case AS3711_CHARGER_STATUS_2: + case AS3711_REG_STATUS: + return true; + } + return false; +} + +static bool as3711_precious_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case AS3711_INTERRUPT_STATUS_1: + case AS3711_INTERRUPT_STATUS_2: + case AS3711_INTERRUPT_STATUS_3: + return true; + } + return false; +} + +static bool as3711_readable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case AS3711_SD_1_VOLTAGE: + case AS3711_SD_2_VOLTAGE: + case AS3711_SD_3_VOLTAGE: + case AS3711_SD_4_VOLTAGE: + case AS3711_LDO_1_VOLTAGE: + case AS3711_LDO_2_VOLTAGE: + case AS3711_LDO_3_VOLTAGE: + case AS3711_LDO_4_VOLTAGE: + case AS3711_LDO_5_VOLTAGE: + case AS3711_LDO_6_VOLTAGE: + case AS3711_LDO_7_VOLTAGE: + case AS3711_LDO_8_VOLTAGE: + case AS3711_SD_CONTROL: + case AS3711_GPIO_SIGNAL_OUT: + case AS3711_GPIO_SIGNAL_IN: + case AS3711_SD_CONTROL_1: + case AS3711_SD_CONTROL_2: + case AS3711_CURR_CONTROL: + case AS3711_CURR1_VALUE: + case AS3711_CURR2_VALUE: + case AS3711_CURR3_VALUE: + case AS3711_STEPUP_CONTROL_1: + case AS3711_STEPUP_CONTROL_2: + case AS3711_STEPUP_CONTROL_4: + case AS3711_STEPUP_CONTROL_5: + case AS3711_REG_STATUS: + case AS3711_INTERRUPT_STATUS_1: + case AS3711_INTERRUPT_STATUS_2: + case AS3711_INTERRUPT_STATUS_3: + case AS3711_CHARGER_STATUS_1: + case AS3711_CHARGER_STATUS_2: + case AS3711_ASIC_ID_1: + case AS3711_ASIC_ID_2: + return true; + } + return false; +} + +static const struct regmap_config as3711_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .volatile_reg = as3711_volatile_reg, + .readable_reg = as3711_readable_reg, + .precious_reg = as3711_precious_reg, + .max_register = AS3711_MAX_REGS, + .num_reg_defaults_raw = AS3711_MAX_REGS, + .cache_type = REGCACHE_RBTREE, +}; + +static int as3711_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct as3711 *as3711; + struct as3711_platform_data *pdata = client->dev.platform_data; + unsigned int id1, id2; + int ret; + + if (!pdata) + dev_dbg(&client->dev, "Platform data not found\n"); + + as3711 = devm_kzalloc(&client->dev, sizeof(struct as3711), GFP_KERNEL); + if (!as3711) { + dev_err(&client->dev, "Memory allocation failed\n"); + return -ENOMEM; + } + + as3711->dev = &client->dev; + i2c_set_clientdata(client, as3711); + + if (client->irq) + dev_notice(&client->dev, "IRQ not supported yet\n"); + + as3711->regmap = devm_regmap_init_i2c(client, &as3711_regmap_config); + if (IS_ERR(as3711->regmap)) { + ret = PTR_ERR(as3711->regmap); + dev_err(&client->dev, "regmap initialization failed: %d\n", ret); + return ret; + } + + ret = regmap_read(as3711->regmap, AS3711_ASIC_ID_1, &id1); + if (!ret) + ret = regmap_read(as3711->regmap, AS3711_ASIC_ID_2, &id2); + if (ret < 0) { + dev_err(&client->dev, "regmap_read() failed: %d\n", ret); + return ret; + } + if (id1 != 0x8b) + return -ENODEV; + dev_info(as3711->dev, "AS3711 detected: %x:%x\n", id1, id2); + + /* We can reuse as3711_subdevs[], it will be copied in mfd_add_devices() */ + if (pdata) { + as3711_subdevs[AS3711_REGULATOR].platform_data = &pdata->regulator; + as3711_subdevs[AS3711_REGULATOR].pdata_size = sizeof(pdata->regulator); + as3711_subdevs[AS3711_BACKLIGHT].platform_data = &pdata->backlight; + as3711_subdevs[AS3711_BACKLIGHT].pdata_size = sizeof(pdata->backlight); + } else { + as3711_subdevs[AS3711_REGULATOR].platform_data = NULL; + as3711_subdevs[AS3711_REGULATOR].pdata_size = 0; + as3711_subdevs[AS3711_BACKLIGHT].platform_data = NULL; + as3711_subdevs[AS3711_BACKLIGHT].pdata_size = 0; + } + + ret = mfd_add_devices(as3711->dev, -1, as3711_subdevs, + ARRAY_SIZE(as3711_subdevs), NULL, 0, NULL); + if (ret < 0) + dev_err(&client->dev, "add mfd devices failed: %d\n", ret); + + return ret; +} + +static int as3711_i2c_remove(struct i2c_client *client) +{ + struct as3711 *as3711 = i2c_get_clientdata(client); + + mfd_remove_devices(as3711->dev); + return 0; +} + +static const struct i2c_device_id as3711_i2c_id[] = { + {.name = "as3711", .driver_data = 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, as3711_i2c_id); + +static struct i2c_driver as3711_i2c_driver = { + .driver = { + .name = "as3711", + .owner = THIS_MODULE, + }, + .probe = as3711_i2c_probe, + .remove = as3711_i2c_remove, + .id_table = as3711_i2c_id, +}; + +static int __init as3711_i2c_init(void) +{ + return i2c_add_driver(&as3711_i2c_driver); +} +/* Initialise early */ +subsys_initcall(as3711_i2c_init); + +static void __exit as3711_i2c_exit(void) +{ + i2c_del_driver(&as3711_i2c_driver); +} +module_exit(as3711_i2c_exit); + +MODULE_AUTHOR("Guennadi Liakhovetski "); +MODULE_DESCRIPTION("AS3711 PMIC driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.1 From 916a871c48ef3ecbc4cac8f185c03160d0b42bfd Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Thu, 22 Nov 2012 11:35:40 +0100 Subject: mfd: ab8500-core: Add abx500-clk as an mfd child device Hierarchically, the abx500-clk shall be considered as a child of the ab8500 core. The abx500-clk is intiated at arch init and thus the clks will be available when clients needs them. Cc: Samuel Ortiz Signed-off-by: Ulf Hansson Signed-off-by: Samuel Ortiz --- drivers/mfd/ab8500-core.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index 2a69dc2..5b8a4de 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -952,6 +952,10 @@ static struct mfd_cell __devinitdata abx500_common_devs[] = { .of_compatible = "stericsson,ab8500-regulator", }, { + .name = "abx500-clk", + .of_compatible = "stericsson,abx500-clk", + }, + { .name = "ab8500-gpadc", .of_compatible = "stericsson,ab8500-gpadc", .num_resources = ARRAY_SIZE(ab8500_gpadc_resources), -- cgit v1.1 From fee546ce8cfd9dea1f53175f627e17ef5ff05df4 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 23 Nov 2012 12:05:33 +0900 Subject: mfd: wm8994: Add support for WM1811 rev E This is supported identically to the previous revisions. Signed-off-by: Mark Brown Cc: stable@vger.kernel.org Signed-off-by: Samuel Ortiz --- drivers/mfd/wm8994-core.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index 8fefc96..f1ac288 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -557,6 +557,7 @@ static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq) case 1: case 2: case 3: + case 4: regmap_patch = wm1811_reva_patch; patch_regs = ARRAY_SIZE(wm1811_reva_patch); break; -- cgit v1.1 From 5e393a2227ba97408ffb98d62cf362dfe2a59baa Mon Sep 17 00:00:00 2001 From: Inderpal Singh Date: Wed, 17 Oct 2012 11:48:55 +0530 Subject: mfd: sec: Fix reg_offset for interrupt registers reg_offset is offset of the status/mask registers. Now, since status_base and mask_base are pointing to corresponding first registers, reg_offset should start from 0 otheriwse regmap_add_irq_chip will fail during probe. Signed-off-by: Inderpal Singh Signed-off-by: Samuel Ortiz --- drivers/mfd/sec-irq.c | 102 +++++++++++++++++++++++++------------------------- 1 file changed, 51 insertions(+), 51 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/sec-irq.c b/drivers/mfd/sec-irq.c index c901fa5..0dd84e9 100644 --- a/drivers/mfd/sec-irq.c +++ b/drivers/mfd/sec-irq.c @@ -24,67 +24,67 @@ static struct regmap_irq s2mps11_irqs[] = { [S2MPS11_IRQ_PWRONF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_PWRONF_MASK, }, [S2MPS11_IRQ_PWRONR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_PWRONR_MASK, }, [S2MPS11_IRQ_JIGONBF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_JIGONBF_MASK, }, [S2MPS11_IRQ_JIGONBR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_JIGONBR_MASK, }, [S2MPS11_IRQ_ACOKBF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_ACOKBF_MASK, }, [S2MPS11_IRQ_ACOKBR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_ACOKBR_MASK, }, [S2MPS11_IRQ_PWRON1S] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_PWRON1S_MASK, }, [S2MPS11_IRQ_MRB] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_MRB_MASK, }, [S2MPS11_IRQ_RTC60S] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S2MPS11_IRQ_RTC60S_MASK, }, [S2MPS11_IRQ_RTCA1] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S2MPS11_IRQ_RTCA1_MASK, }, [S2MPS11_IRQ_RTCA2] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S2MPS11_IRQ_RTCA2_MASK, }, [S2MPS11_IRQ_SMPL] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S2MPS11_IRQ_SMPL_MASK, }, [S2MPS11_IRQ_RTC1S] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S2MPS11_IRQ_RTC1S_MASK, }, [S2MPS11_IRQ_WTSR] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S2MPS11_IRQ_WTSR_MASK, }, [S2MPS11_IRQ_INT120C] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S2MPS11_IRQ_INT120C_MASK, }, [S2MPS11_IRQ_INT140C] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S2MPS11_IRQ_INT140C_MASK, }, }; @@ -92,146 +92,146 @@ static struct regmap_irq s2mps11_irqs[] = { static struct regmap_irq s5m8767_irqs[] = { [S5M8767_IRQ_PWRR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_PWRR_MASK, }, [S5M8767_IRQ_PWRF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_PWRF_MASK, }, [S5M8767_IRQ_PWR1S] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_PWR1S_MASK, }, [S5M8767_IRQ_JIGR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_JIGR_MASK, }, [S5M8767_IRQ_JIGF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_JIGF_MASK, }, [S5M8767_IRQ_LOWBAT2] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_LOWBAT2_MASK, }, [S5M8767_IRQ_LOWBAT1] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_LOWBAT1_MASK, }, [S5M8767_IRQ_MRB] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8767_IRQ_MRB_MASK, }, [S5M8767_IRQ_DVSOK2] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8767_IRQ_DVSOK2_MASK, }, [S5M8767_IRQ_DVSOK3] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8767_IRQ_DVSOK3_MASK, }, [S5M8767_IRQ_DVSOK4] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8767_IRQ_DVSOK4_MASK, }, [S5M8767_IRQ_RTC60S] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8767_IRQ_RTC60S_MASK, }, [S5M8767_IRQ_RTCA1] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8767_IRQ_RTCA1_MASK, }, [S5M8767_IRQ_RTCA2] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8767_IRQ_RTCA2_MASK, }, [S5M8767_IRQ_SMPL] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8767_IRQ_SMPL_MASK, }, [S5M8767_IRQ_RTC1S] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8767_IRQ_RTC1S_MASK, }, [S5M8767_IRQ_WTSR] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8767_IRQ_WTSR_MASK, }, }; static struct regmap_irq s5m8763_irqs[] = { [S5M8763_IRQ_DCINF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8763_IRQ_DCINF_MASK, }, [S5M8763_IRQ_DCINR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8763_IRQ_DCINR_MASK, }, [S5M8763_IRQ_JIGF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8763_IRQ_JIGF_MASK, }, [S5M8763_IRQ_JIGR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8763_IRQ_JIGR_MASK, }, [S5M8763_IRQ_PWRONF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8763_IRQ_PWRONF_MASK, }, [S5M8763_IRQ_PWRONR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8763_IRQ_PWRONR_MASK, }, [S5M8763_IRQ_WTSREVNT] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8763_IRQ_WTSREVNT_MASK, }, [S5M8763_IRQ_SMPLEVNT] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8763_IRQ_SMPLEVNT_MASK, }, [S5M8763_IRQ_ALARM1] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8763_IRQ_ALARM1_MASK, }, [S5M8763_IRQ_ALARM0] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8763_IRQ_ALARM0_MASK, }, [S5M8763_IRQ_ONKEY1S] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8763_IRQ_ONKEY1S_MASK, }, [S5M8763_IRQ_TOPOFFR] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8763_IRQ_TOPOFFR_MASK, }, [S5M8763_IRQ_DCINOVPR] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8763_IRQ_DCINOVPR_MASK, }, [S5M8763_IRQ_CHGRSTF] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8763_IRQ_CHGRSTF_MASK, }, [S5M8763_IRQ_DONER] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8763_IRQ_DONER_MASK, }, [S5M8763_IRQ_CHGFAULT] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8763_IRQ_CHGFAULT_MASK, }, [S5M8763_IRQ_LOBAT1] = { - .reg_offset = 4, + .reg_offset = 3, .mask = S5M8763_IRQ_LOBAT1_MASK, }, [S5M8763_IRQ_LOBAT2] = { - .reg_offset = 4, + .reg_offset = 3, .mask = S5M8763_IRQ_LOBAT2_MASK, }, }; -- cgit v1.1 From 3c39c9c6e9bda4d234bd24aaf34606479f581f4a Mon Sep 17 00:00:00 2001 From: "Patil, Rachna" Date: Tue, 6 Nov 2012 13:39:03 +0530 Subject: MFD: ti_am335x_tscadc: Pass correct error message Pass on the correct error message from platform_get_irq() instead of hard coding it to "EINVAL". Also change label from "err" to "ret" for better readability and update the same in error path. Signed-off-by: Patil, Rachna Signed-off-by: Samuel Ortiz --- drivers/mfd/ti_am335x_tscadc.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index e947dd8..8ca3bf0 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -65,7 +65,6 @@ static int __devinit ti_tscadc_probe(struct platform_device *pdev) struct clk *clk; struct mfd_tscadc_board *pdata = pdev->dev.platform_data; struct mfd_cell *cell; - int irq; int err, ctrl; int clk_value, clock_rate; int tsc_wires, adc_channels = 0, total_channels; @@ -92,12 +91,6 @@ static int __devinit ti_tscadc_probe(struct platform_device *pdev) return -EINVAL; } - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(&pdev->dev, "no irq ID is specified.\n"); - return -EINVAL; - } - /* Allocate memory for device */ tscadc = devm_kzalloc(&pdev->dev, sizeof(struct ti_tscadc_dev), GFP_KERNEL); @@ -106,22 +99,26 @@ static int __devinit ti_tscadc_probe(struct platform_device *pdev) return -ENOMEM; } tscadc->dev = &pdev->dev; - tscadc->irq = irq; + + err = platform_get_irq(pdev, 0); + if (err < 0) { + dev_err(&pdev->dev, "no irq ID is specified.\n"); + goto ret; + } else + tscadc->irq = err; res = devm_request_mem_region(&pdev->dev, res->start, resource_size(res), pdev->name); if (!res) { dev_err(&pdev->dev, "failed to reserve registers.\n"); - err = -EBUSY; - goto err; + return -EBUSY; } tscadc->tscadc_base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); if (!tscadc->tscadc_base) { dev_err(&pdev->dev, "failed to map registers.\n"); - err = -ENOMEM; - goto err; + return -ENOMEM; } tscadc->regmap_tscadc = devm_regmap_init_mmio(&pdev->dev, @@ -129,7 +126,7 @@ static int __devinit ti_tscadc_probe(struct platform_device *pdev) if (IS_ERR(tscadc->regmap_tscadc)) { dev_err(&pdev->dev, "regmap init failed\n"); err = PTR_ERR(tscadc->regmap_tscadc); - goto err; + goto ret; } pm_runtime_enable(&pdev->dev); @@ -201,7 +198,7 @@ static int __devinit ti_tscadc_probe(struct platform_device *pdev) err_disable_clk: pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); -err: +ret: return err; } -- cgit v1.1 From 302b95621dc96651187c21fd66e5a44860e4c3b1 Mon Sep 17 00:00:00 2001 From: Lars Poeschel Date: Mon, 26 Nov 2012 11:24:53 +0100 Subject: mfd: viperboard: Do version query in dma memory The query for the viperboard version was done with memory buffer on the stack but usb transfers need dma capable memory buffer. This is fixed now. Signed-off-by: Lars Poeschel Signed-off-by: Samuel Ortiz --- drivers/mfd/viperboard.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/viperboard.c b/drivers/mfd/viperboard.c index 276122b..af2a670 100644 --- a/drivers/mfd/viperboard.c +++ b/drivers/mfd/viperboard.c @@ -56,7 +56,6 @@ static int vprbrd_probe(struct usb_interface *interface, u16 version = 0; int pipe, ret; - unsigned char buf[1]; /* allocate memory for our device state and initialize it */ vb = kzalloc(sizeof(*vb), GFP_KERNEL); @@ -76,17 +75,17 @@ static int vprbrd_probe(struct usb_interface *interface, /* get version information, major first, minor then */ pipe = usb_rcvctrlpipe(vb->usb_dev, 0); ret = usb_control_msg(vb->usb_dev, pipe, VPRBRD_USB_REQUEST_MAJOR, - VPRBRD_USB_TYPE_IN, 0x0000, 0x0000, buf, 1, + VPRBRD_USB_TYPE_IN, 0x0000, 0x0000, vb->buf, 1, VPRBRD_USB_TIMEOUT_MS); if (ret == 1) - version = buf[0]; + version = vb->buf[0]; ret = usb_control_msg(vb->usb_dev, pipe, VPRBRD_USB_REQUEST_MINOR, - VPRBRD_USB_TYPE_IN, 0x0000, 0x0000, buf, 1, + VPRBRD_USB_TYPE_IN, 0x0000, 0x0000, vb->buf, 1, VPRBRD_USB_TIMEOUT_MS); if (ret == 1) { version <<= 8; - version = version | buf[0]; + version = version | vb->buf[0]; } dev_info(&interface->dev, -- cgit v1.1 From 3f9be35bd9090eaa2f68ed9b24efdbf3abcf4b28 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 20 Nov 2012 10:34:56 +0800 Subject: mfd: rc5t583: Fix array subscript is above array bounds I got below build warning while compiling this driver. It's obviously RC5T583_MAX_INTERRUPT_MASK_REGS is 9 but irq_en_add array only has 8 elements. CC drivers/mfd/rc5t583-irq.o drivers/mfd/rc5t583-irq.c: In function 'rc5t583_irq_sync_unlock': drivers/mfd/rc5t583-irq.c:227: warning: array subscript is above array bounds drivers/mfd/rc5t583-irq.c: In function 'rc5t583_irq_init': drivers/mfd/rc5t583-irq.c:349: warning: array subscript is above array bounds Since the number of interrupt enable registers is 8, this patch adds define for RC5T583_MAX_INTERRUPT_EN_REGS to fix this bug. Signed-off-by: Axel Lin Acked-by: Laxman Dewangan Signed-off-by: Samuel Ortiz --- drivers/mfd/rc5t583-irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/rc5t583-irq.c b/drivers/mfd/rc5t583-irq.c index fe00cdd..b41db59 100644 --- a/drivers/mfd/rc5t583-irq.c +++ b/drivers/mfd/rc5t583-irq.c @@ -345,7 +345,7 @@ int rc5t583_irq_init(struct rc5t583 *rc5t583, int irq, int irq_base) mutex_init(&rc5t583->irq_lock); /* Initailize all int register to 0 */ - for (i = 0; i < RC5T583_MAX_INTERRUPT_MASK_REGS; i++) { + for (i = 0; i < RC5T583_MAX_INTERRUPT_EN_REGS; i++) { ret = rc5t583_write(rc5t583->dev, irq_en_add[i], rc5t583->irq_en_reg[i]); if (ret < 0) -- cgit v1.1 From b20a43715e675815d0a426f05a7607ba099136aa Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 23 Nov 2012 15:19:29 +0000 Subject: mfd: Simplify IRQ domain registration code in STMPE Historically, a driver would have to decide whether it required a Linear or Legacy IRQ domain when registering one. This can end up as quite a lot of code. A new Simple call now exists which simplifies this process. Let's make use of it here. Reviewed-by: Viresh Kumar Signed-off-by: Lee Jones Signed-off-by: Samuel Ortiz --- drivers/mfd/stmpe.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index c0df4b9..0061d1b 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -888,18 +888,14 @@ static struct irq_domain_ops stmpe_irq_ops = { static int __devinit stmpe_irq_init(struct stmpe *stmpe, struct device_node *np) { - int base = stmpe->irq_base; + int base = 0; int num_irqs = stmpe->variant->num_irqs; - if (base) { - stmpe->domain = irq_domain_add_legacy( - np, num_irqs, base, 0, &stmpe_irq_ops, stmpe); - } - else { - stmpe->domain = irq_domain_add_linear( - np, num_irqs, &stmpe_irq_ops, stmpe); - } + if (!np) + base = stmpe->irq_base; + stmpe->domain = irq_domain_add_simple(np, num_irqs, base, + &stmpe_irq_ops, stmpe); if (!stmpe->domain) { dev_err(stmpe->dev, "Failed to create irqdomain\n"); return -ENOSYS; -- cgit v1.1 From 32533983858f5f6899f39d54230d9640ef4547cd Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 23 Nov 2012 00:26:19 +0530 Subject: mfd: stmpe-i2c: Move .driver structure fields inside {} in stmpe_i2c_driver Currently, few fields in stmpe_i2c_driver are initialized as: .driver.owner = THIS_MODULE, Group them under {}, like: .driver = { .owner = THIS_MODULE, ... }, Signed-off-by: Viresh Kumar Signed-off-by: Samuel Ortiz --- drivers/mfd/stmpe-i2c.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/stmpe-i2c.c b/drivers/mfd/stmpe-i2c.c index 947a06a..c734dc3 100644 --- a/drivers/mfd/stmpe-i2c.c +++ b/drivers/mfd/stmpe-i2c.c @@ -82,11 +82,13 @@ static const struct i2c_device_id stmpe_i2c_id[] = { MODULE_DEVICE_TABLE(i2c, stmpe_id); static struct i2c_driver stmpe_i2c_driver = { - .driver.name = "stmpe-i2c", - .driver.owner = THIS_MODULE, + .driver = { + .name = "stmpe-i2c", + .owner = THIS_MODULE, #ifdef CONFIG_PM - .driver.pm = &stmpe_dev_pm_ops, + .pm = &stmpe_dev_pm_ops, #endif + }, .probe = stmpe_i2c_probe, .remove = __devexit_p(stmpe_i2c_remove), .id_table = stmpe_i2c_id, -- cgit v1.1 From 931cbaf352e06b649a5033af8dd17eed53efc2c7 Mon Sep 17 00:00:00 2001 From: Devendra Naga Date: Sat, 24 Nov 2012 06:14:38 -0500 Subject: mfd: jz4740-adc: Use devm_kzalloc Use devm_kzalloc and remove the error path free'ing and unload free'ing as the devm resource functions free them. Signed-off-by: Devendra Naga Signed-off-by: Samuel Ortiz --- drivers/mfd/jz4740-adc.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c index c6b6d7d..8619508 100644 --- a/drivers/mfd/jz4740-adc.c +++ b/drivers/mfd/jz4740-adc.c @@ -211,7 +211,7 @@ static int __devinit jz4740_adc_probe(struct platform_device *pdev) int ret; int irq_base; - adc = kmalloc(sizeof(*adc), GFP_KERNEL); + adc = devm_kzalloc(&pdev->dev, sizeof(*adc), GFP_KERNEL); if (!adc) { dev_err(&pdev->dev, "Failed to allocate driver structure\n"); return -ENOMEM; @@ -221,30 +221,27 @@ static int __devinit jz4740_adc_probe(struct platform_device *pdev) if (adc->irq < 0) { ret = adc->irq; dev_err(&pdev->dev, "Failed to get platform irq: %d\n", ret); - goto err_free; + return ret; } irq_base = platform_get_irq(pdev, 1); if (irq_base < 0) { - ret = irq_base; - dev_err(&pdev->dev, "Failed to get irq base: %d\n", ret); - goto err_free; + dev_err(&pdev->dev, "Failed to get irq base: %d\n", irq_base); + return irq_base; } mem_base = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!mem_base) { - ret = -ENOENT; dev_err(&pdev->dev, "Failed to get platform mmio resource\n"); - goto err_free; + return -ENOENT; } /* Only request the shared registers for the MFD driver */ adc->mem = request_mem_region(mem_base->start, JZ_REG_ADC_STATUS, pdev->name); if (!adc->mem) { - ret = -EBUSY; dev_err(&pdev->dev, "Failed to request mmio memory region\n"); - goto err_free; + return -EBUSY; } adc->base = ioremap_nocache(adc->mem->start, resource_size(adc->mem)); @@ -301,9 +298,6 @@ err_iounmap: iounmap(adc->base); err_release_mem_region: release_mem_region(adc->mem->start, resource_size(adc->mem)); -err_free: - kfree(adc); - return ret; } @@ -325,8 +319,6 @@ static int __devexit jz4740_adc_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); - kfree(adc); - return 0; } -- cgit v1.1 From 20d5c7defc228cdaeff3ce3442f3a4e86af293c1 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 12 Nov 2012 09:20:49 -0800 Subject: mfd: Fix stmpe.c build when OF is not enabled Fix build errors when CONFIG_OF is not enabled by including (needs to be added in any case). An alternative fix could be to make the driver depend on OF. drivers/mfd/stmpe.c:1025:2: error: implicit declaration of function 'of_property_read_u32' drivers/mfd/stmpe.c:1030:2: error: implicit declaration of function 'for_each_child_of_node' drivers/mfd/stmpe.c:1030:36: error: expected ';' before '{' token Signed-off-by: Randy Dunlap Acked-by: Linus Walleij Signed-off-by: Samuel Ortiz --- drivers/mfd/stmpe.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index 0061d1b..f9f7de7 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include -- cgit v1.1 From 64cdfe256aae6d43d472331ba03bd4ccbfcb1abb Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 27 Nov 2012 15:15:17 +0800 Subject: mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ This fixes below build error: drivers/built-in.o: In function `tps65090_i2c_probe': drivers/mfd/tps65090.c:180: undefined reference to `regmap_add_irq_chip' drivers/mfd/tps65090.c:190: undefined reference to `regmap_irq_chip_get_base' drivers/mfd/tps65090.c:203: undefined reference to `regmap_del_irq_chip' drivers/built-in.o: In function `tps65090_i2c_remove': drivers/mfd/tps65090.c:213: undefined reference to `regmap_del_irq_chip' make: *** [vmlinux] Error 1 Signed-off-by: Axel Lin Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 475c266..5ba95d4 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1016,6 +1016,7 @@ config MFD_TPS65090 depends on I2C=y && GENERIC_HARDIRQS select MFD_CORE select REGMAP_I2C + select REGMAP_IRQ help If you say yes here you get support for the TPS65090 series of Power Management chips. -- cgit v1.1 From d54e17f9f1d14706e6df1d5509e7eb5878bcd766 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 27 Nov 2012 15:23:30 +0000 Subject: mfd: wm8994: Make current device behaviour the default As the wm8994 series of devices are now very mature make the current behaviour of the devices the default behaviour, any future revisions are likely to have only minor updates. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/wm8994-core.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index f1ac288..be1a424 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -529,11 +529,10 @@ static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq) break; case 2: case 3: + default: regmap_patch = wm8994_revc_patch; patch_regs = ARRAY_SIZE(wm8994_revc_patch); break; - default: - break; } break; @@ -552,18 +551,9 @@ static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq) /* Revision C did not change the relevant layer */ if (wm8994->revision > 1) wm8994->revision++; - switch (wm8994->revision) { - case 0: - case 1: - case 2: - case 3: - case 4: - regmap_patch = wm1811_reva_patch; - patch_regs = ARRAY_SIZE(wm1811_reva_patch); - break; - default: - break; - } + + regmap_patch = wm1811_reva_patch; + patch_regs = ARRAY_SIZE(wm1811_reva_patch); break; default: -- cgit v1.1 From b2e2558edf5e68f4efbdec0e09152050b9d79c07 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 27 Nov 2012 17:37:13 +0000 Subject: mfd: arizona: Register haptics devices Both WM5102 and WM5110 support haptics, register the device. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/arizona-core.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 1b48f20..7561971 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -272,6 +272,7 @@ static struct mfd_cell early_devs[] = { static struct mfd_cell wm5102_devs[] = { { .name = "arizona-extcon" }, { .name = "arizona-gpio" }, + { .name = "arizona-haptics" }, { .name = "arizona-micsupp" }, { .name = "arizona-pwm" }, { .name = "wm5102-codec" }, @@ -280,6 +281,7 @@ static struct mfd_cell wm5102_devs[] = { static struct mfd_cell wm5110_devs[] = { { .name = "arizona-extcon" }, { .name = "arizona-gpio" }, + { .name = "arizona-haptics" }, { .name = "arizona-micsupp" }, { .name = "arizona-pwm" }, { .name = "wm5110-codec" }, -- cgit v1.1 From 27dff048ccdc15e6680c06ab77433be948492d05 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 28 Nov 2012 18:47:28 +0000 Subject: mfd: wm5102: Correct default for LDO1_CONTROL_2 Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/wm5102-tables.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index 5cb3374..fa91e25 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -807,6 +807,7 @@ static const struct reg_default wm5102_reg_default[] = { { 0x000001AA, 0x0004 }, /* R426 - FLL2 GPIO Clock */ { 0x00000200, 0x0006 }, /* R512 - Mic Charge Pump 1 */ { 0x00000210, 0x00D4 }, /* R528 - LDO1 Control 1 */ + { 0x00000212, 0x0001 }, /* R530 - LDO1 Control 2 */ { 0x00000213, 0x0344 }, /* R531 - LDO2 Control 1 */ { 0x00000218, 0x01A6 }, /* R536 - Mic Bias Ctrl 1 */ { 0x00000219, 0x01A6 }, /* R537 - Mic Bias Ctrl 2 */ -- cgit v1.1 From 13ea5813238239930d12d28bd7504a3ac6ba14d1 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 28 Nov 2012 19:04:16 +0000 Subject: mfd: wm5102: Mark DSP memory regions as volatile We can cache some of them but this is simpler for now. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/wm5102-tables.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index fa91e25..ccbdd58 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -2330,6 +2330,9 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg) static bool wm5102_volatile_register(struct device *dev, unsigned int reg) { + if (reg > 0xffff) + return true; + switch (reg) { case ARIZONA_SOFTWARE_RESET: case ARIZONA_DEVICE_REVISION: -- cgit v1.1 From 4e1328be4d4e4967d54bf7ae3b0805ec53fc4f91 Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Fri, 23 Nov 2012 17:48:43 +0530 Subject: mfd: ab8500-core: Fix invalid free of devm_ allocated data The objects allocated by devm_* APIs are managed by devres and are freed when the device is detached. Hence there is no need to remove them explicitly in remove function. Signed-off-by: Tushar Behera Acked-by: Linus Walleij Signed-off-by: Samuel Ortiz --- drivers/mfd/ab8500-core.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index 5b8a4de..660a09b 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -1437,11 +1437,6 @@ static int __devexit ab8500_remove(struct platform_device *pdev) sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group); mfd_remove_devices(ab8500->dev); - free_irq(ab8500->irq, ab8500); - - kfree(ab8500->oldmask); - kfree(ab8500->mask); - kfree(ab8500); return 0; } -- cgit v1.1 From 12a5105e04143569b3e9e5ef03cf9cad8862473a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 29 Nov 2012 00:17:15 +0530 Subject: mfd: stmpe: Get rid of irq_invert_polarity Since the very first patch, stmpe core driver is using irq_invert_polarity as part of platform data. But, nobody is actually using it in kernel till now. Also, this is not something part of hardware specs, but is included to cater some board mistakes or quirks. So, better get rid of it. This is earlier discussed here: https://lkml.org/lkml/2012/11/27/636 Signed-off-by: Viresh Kumar Acked-by: Lee Jones Signed-off-by: Samuel Ortiz --- drivers/mfd/stmpe.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index f9f7de7..90c6151 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -953,13 +953,6 @@ static int __devinit stmpe_chip_init(struct stmpe *stmpe) else icr |= STMPE_ICR_LSB_HIGH; } - - if (stmpe->pdata->irq_invert_polarity) { - if (id == STMPE801_ID) - icr ^= STMPE801_REG_SYS_CTRL_INT_HI; - else - icr ^= STMPE_ICR_LSB_HIGH; - } } if (stmpe->pdata->autosleep) { -- cgit v1.1 From 0e5fca8106199f5c680bb93e75c16381c4c256ce Mon Sep 17 00:00:00 2001 From: "Kim, Milo" Date: Thu, 29 Nov 2012 08:48:26 +0000 Subject: mfd: tps65910: Remove unused data The 'io_mutex' is not used anywhere. The regmap API supports the mutex internally, so no additional mutex is required. And 'domain' private data is unnecessary because the irq domain is already registered by using regmap_add_irq_chip(). Signed-off-by: Milo(Woogyom) Kim Acked-by: Laxman Dewangan Signed-off-by: Samuel Ortiz --- drivers/mfd/tps65910.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c index ca37833..c160c2d 100644 --- a/drivers/mfd/tps65910.c +++ b/drivers/mfd/tps65910.c @@ -486,7 +486,6 @@ static __devinit int tps65910_i2c_probe(struct i2c_client *i2c, tps65910->dev = &i2c->dev; tps65910->i2c_client = i2c; tps65910->id = chip_id; - mutex_init(&tps65910->io_mutex); tps65910->regmap = devm_regmap_init_i2c(i2c, &tps65910_regmap_config); if (IS_ERR(tps65910->regmap)) { -- cgit v1.1 From 0582c0fafc36e4a1f2067ea8377c9902cc7997bf Mon Sep 17 00:00:00 2001 From: "Kim, Milo" Date: Thu, 29 Nov 2012 06:42:12 +0000 Subject: mfd: tps65910: Fix wrong ack_base register The interrupt status registers of TPS65910/1 should be cleared when the associated interrupt event occurs. This work is done in the regmap irq thread - using 'ack_base' register. The ACK registers should be fixed as status register, not mask registers. This patch fixes the infinite interrupt event problem by clearing interrupt status registers. Tested on the AM3517 Craneboard. Signed-off-by: Milo(Woogyom) Kim Acked-by: Laxman Dewangan Signed-off-by: Samuel Ortiz --- drivers/mfd/tps65910.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c index c160c2d..d5ef3a5 100644 --- a/drivers/mfd/tps65910.c +++ b/drivers/mfd/tps65910.c @@ -211,7 +211,7 @@ static struct regmap_irq_chip tps65911_irq_chip = { .irq_reg_stride = 2, .status_base = TPS65910_INT_STS, .mask_base = TPS65910_INT_MSK, - .ack_base = TPS65910_INT_MSK, + .ack_base = TPS65910_INT_STS, }; static struct regmap_irq_chip tps65910_irq_chip = { @@ -222,7 +222,7 @@ static struct regmap_irq_chip tps65910_irq_chip = { .irq_reg_stride = 2, .status_base = TPS65910_INT_STS, .mask_base = TPS65910_INT_MSK, - .ack_base = TPS65910_INT_MSK, + .ack_base = TPS65910_INT_STS, }; static int tps65910_irq_init(struct tps65910 *tps65910, int irq, -- cgit v1.1 From 62d62b59bd100b8f146ea941dad273656371a386 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sun, 2 Dec 2012 11:41:46 +0900 Subject: mfd: arizona: Defer patch initialistation until after first device boot Make sure that we don't race with the initial device boot by only doing the initialisation after we've waited for the boot to complete. The runtime PM code already waits for the boot to complete before it syncs the register patches so in most systems if a race does occur we will power down very soon afterwards and recover anyway. Reported-by: Charles Keepax Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/arizona-core.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 7561971..f59773d 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -292,6 +292,7 @@ int __devinit arizona_dev_init(struct arizona *arizona) struct device *dev = arizona->dev; const char *type_name; unsigned int reg, val; + int (*apply_patch)(struct arizona *) = NULL; int ret, i; dev_set_drvdata(arizona->dev, arizona); @@ -391,7 +392,7 @@ int __devinit arizona_dev_init(struct arizona *arizona) arizona->type); arizona->type = WM5102; } - ret = wm5102_patch(arizona); + apply_patch = wm5102_patch; break; #endif #ifdef CONFIG_MFD_WM5110 @@ -402,7 +403,7 @@ int __devinit arizona_dev_init(struct arizona *arizona) arizona->type); arizona->type = WM5110; } - ret = wm5110_patch(arizona); + apply_patch = wm5110_patch; break; #endif default: @@ -412,9 +413,6 @@ int __devinit arizona_dev_init(struct arizona *arizona) dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A'); - if (ret != 0) - dev_err(arizona->dev, "Failed to apply patch: %d\n", ret); - /* If we have a /RESET GPIO we'll already be reset */ if (!arizona->pdata.reset) { ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0); @@ -430,6 +428,15 @@ int __devinit arizona_dev_init(struct arizona *arizona) goto err_reset; } + if (apply_patch) { + ret = apply_patch(arizona); + if (ret != 0) { + dev_err(arizona->dev, "Failed to apply patch: %d\n", + ret); + goto err_reset; + } + } + for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) { if (!arizona->pdata.gpio_defaults[i]) continue; -- cgit v1.1 From 3748f193552ba21a8239c56eb616d946c47607e7 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sun, 2 Dec 2012 11:41:47 +0900 Subject: mfd: wm5102: Add tuning for revision B Evaluation of revision B of WM5102 suggests updates to the register patch for optimal performance, and make this the default behaviour for new devices. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/wm5102-tables.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index ccbdd58..005de63 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -573,6 +573,18 @@ static const struct reg_default wm5102_reva_patch[] = { { 0x80, 0x0000 }, }; +static const struct reg_default wm5102_revb_patch[] = { + { 0x80, 0x0003 }, + { 0x081, 0xE022 }, + { 0x410, 0x6080 }, + { 0x418, 0x6080 }, + { 0x420, 0x6080 }, + { 0x428, 0xC000 }, + { 0x441, 0x8014 }, + { 0x458, 0x000b }, + { 0x80, 0x0000 }, +}; + /* We use a function so we can use ARRAY_SIZE() */ int wm5102_patch(struct arizona *arizona) { @@ -582,7 +594,9 @@ int wm5102_patch(struct arizona *arizona) wm5102_reva_patch, ARRAY_SIZE(wm5102_reva_patch)); default: - return 0; + return regmap_register_patch(arizona->regmap, + wm5102_revb_patch, + ARRAY_SIZE(wm5102_revb_patch)); } } -- cgit v1.1 From 709edecd4eaaa210ea9296c6d8ec5e9cedf1abe3 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Sun, 2 Dec 2012 08:36:22 -0500 Subject: mfd: sta2x11: Fix potential NULL pointer dereference in __sta2x11_mfd_mask() The dereference to 'mfd' should be moved below the NULL test. Signed-off-by: Wei Yongjun Signed-off-by: Samuel Ortiz --- drivers/mfd/sta2x11-mfd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index 6fb0938..009b4b7 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -116,12 +116,14 @@ u32 __sta2x11_mfd_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val, struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev); u32 r; unsigned long flags; - void __iomem *regs = mfd->regs[index]; + void __iomem *regs; if (!mfd) { dev_warn(&pdev->dev, ": can't access sctl regs\n"); return 0; } + + regs = mfd->regs[index]; if (!regs) { dev_warn(&pdev->dev, ": system ctl not initialized\n"); return 0; -- cgit v1.1 From f69b01c5ce4f8ecc95605e4115d653e65c2e4dcc Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 5 Dec 2012 20:59:00 +0800 Subject: mfd: tps80031: Add terminating entry for tps80031_id_table The i2c_device_id table is supposed to be zero-terminated. Signed-off-by: Axel Lin Acked-by: Laxman Dewangan Signed-off-by: Samuel Ortiz --- drivers/mfd/tps80031.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps80031.c b/drivers/mfd/tps80031.c index f64005e..10b51f7 100644 --- a/drivers/mfd/tps80031.c +++ b/drivers/mfd/tps80031.c @@ -543,6 +543,7 @@ static int __devexit tps80031_remove(struct i2c_client *client) static const struct i2c_device_id tps80031_id_table[] = { { "tps80031", TPS80031 }, { "tps80032", TPS80032 }, + { } }; MODULE_DEVICE_TABLE(i2c, tps80031_id_table); -- cgit v1.1 From c2ace4fdd0efce3e2fbd930300524191dd7180ae Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 5 Dec 2012 21:19:48 +0800 Subject: mfd: tps80031: MFD_TPS80031 needs to select REGMAP_IRQ This driver uses regmap_irq APIs, thus need to select REGMAP_IRQ. IRQ_DOMAIN will be selected if select REGMAP_IRQ, thus remove it here. This fixes below build errors: drivers/built-in.o: In function `tps80031_remove': drivers/mfd/tps80031.c:534: undefined reference to `regmap_del_irq_chip' drivers/built-in.o: In function `tps80031_irq_init': drivers/mfd/tps80031.c:305: undefined reference to `regmap_add_irq_chip' drivers/built-in.o: In function `tps80031_probe': drivers/mfd/tps80031.c:496: undefined reference to `regmap_irq_get_domain' drivers/mfd/tps80031.c:512: undefined reference to `regmap_del_irq_chip' make: *** [vmlinux] Error 1 Signed-off-by: Axel Lin Acked-by: Laxman Dewangan Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 5ba95d4..50bbe88 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -270,7 +270,7 @@ config MFD_TPS80031 depends on I2C=y && GENERIC_HARDIRQS select MFD_CORE select REGMAP_I2C - select IRQ_DOMAIN + select REGMAP_IRQ help If you say yes here you get support for the Texas Instruments TPS80031/ TPS80032 Fully Integrated Power Management with Power -- cgit v1.1 From b7dea5dc5baf6021f1d007db774569ad04741af9 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 5 Dec 2012 11:46:26 +0900 Subject: mfd: arizona: Log if we fail to create the primary IRQ domain This is the only thing in probe for which we don't log an error. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/arizona-irq.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c index ef0f2d00..7db56ab 100644 --- a/drivers/mfd/arizona-irq.c +++ b/drivers/mfd/arizona-irq.c @@ -223,6 +223,7 @@ int arizona_irq_init(struct arizona *arizona) arizona->virq = irq_domain_add_linear(NULL, 2, &arizona_domain_ops, arizona); if (!arizona->virq) { + dev_err(arizona->dev, "Failed to add core IRQ domain\n"); ret = -EINVAL; goto err; } -- cgit v1.1 From be2f6f5a7833b99bdee97c4b877dcd2afc6cdd00 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sun, 9 Dec 2012 15:40:30 +0100 Subject: mfd: wm5102: Add readback of DSP status 3 register Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/wm5102-tables.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index 005de63..8844b2f 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -2336,6 +2336,7 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg) case ARIZONA_DSP1_CLOCKING_1: case ARIZONA_DSP1_STATUS_1: case ARIZONA_DSP1_STATUS_2: + case ARIZONA_DSP1_STATUS_3: return true; default: return false; @@ -2386,6 +2387,7 @@ static bool wm5102_volatile_register(struct device *dev, unsigned int reg) case ARIZONA_AOD_IRQ_RAW_STATUS: case ARIZONA_DSP1_STATUS_1: case ARIZONA_DSP1_STATUS_2: + case ARIZONA_DSP1_STATUS_3: case ARIZONA_HEADPHONE_DETECT_2: case ARIZONA_MIC_DETECT_3: return true; -- cgit v1.1 From ac713cc9fcb8a5f9503af08421772b85ca4685f1 Mon Sep 17 00:00:00 2001 From: Vipul Kumar Samar Date: Fri, 7 Dec 2012 20:29:37 +0530 Subject: mfd: stmpe: Update DT support for stmpe driver This patch extends existing DT support for stmpe devices. This updates: - missing header files in stmpe.c - stmpe_of_probe() with pwm, rotator and new bindings. - Bindings are updated in binding document. Acked-by: Lee Jones Acked-by: Linus Walleij Signed-off-by: Vipul Kumar Samar Signed-off-by: Viresh Kumar Signed-off-by: Samuel Ortiz --- drivers/mfd/stmpe.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index 90c6151..b18cc1a 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -7,6 +7,7 @@ * Author: Rabin Vincent for ST-Ericsson */ +#include #include #include #include @@ -14,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -1012,6 +1014,9 @@ void __devinit stmpe_of_probe(struct stmpe_platform_data *pdata, { struct device_node *child; + pdata->id = -1; + pdata->irq_trigger = IRQF_TRIGGER_NONE; + of_property_read_u32(np, "st,autosleep-timeout", &pdata->autosleep_timeout); @@ -1020,15 +1025,16 @@ void __devinit stmpe_of_probe(struct stmpe_platform_data *pdata, for_each_child_of_node(np, child) { if (!strcmp(child->name, "stmpe_gpio")) { pdata->blocks |= STMPE_BLOCK_GPIO; - } - if (!strcmp(child->name, "stmpe_keypad")) { + } else if (!strcmp(child->name, "stmpe_keypad")) { pdata->blocks |= STMPE_BLOCK_KEYPAD; - } - if (!strcmp(child->name, "stmpe_touchscreen")) { + } else if (!strcmp(child->name, "stmpe_touchscreen")) { pdata->blocks |= STMPE_BLOCK_TOUCHSCREEN; - } - if (!strcmp(child->name, "stmpe_adc")) { + } else if (!strcmp(child->name, "stmpe_adc")) { pdata->blocks |= STMPE_BLOCK_ADC; + } else if (!strcmp(child->name, "stmpe_pwm")) { + pdata->blocks |= STMPE_BLOCK_PWM; + } else if (!strcmp(child->name, "stmpe_rotator")) { + pdata->blocks |= STMPE_BLOCK_ROTATOR; } } } @@ -1099,6 +1105,9 @@ int __devinit stmpe_probe(struct stmpe_client_info *ci, int partnum) return -ENODEV; } stmpe->variant = stmpe_noirq_variant_info[stmpe->partnum]; + } else if (pdata->irq_trigger == IRQF_TRIGGER_NONE) { + pdata->irq_trigger = + irqd_get_trigger_type(irq_get_irq_data(stmpe->irq)); } ret = stmpe_chip_init(stmpe); -- cgit v1.1 From 1881b68b8961a86d40c3c5c205e533515a2dc9c6 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 9 Dec 2012 20:25:55 +0800 Subject: mfd: tps6507x: Convert to devm_kzalloc Signed-off-by: Axel Lin Signed-off-by: Samuel Ortiz --- drivers/mfd/tps6507x.c | 21 ++++----------------- 1 file changed, 4 insertions(+), 17 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/tps6507x.c b/drivers/mfd/tps6507x.c index 1b20349..409afa2 100644 --- a/drivers/mfd/tps6507x.c +++ b/drivers/mfd/tps6507x.c @@ -86,9 +86,9 @@ static int tps6507x_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct tps6507x_dev *tps6507x; - int ret = 0; - tps6507x = kzalloc(sizeof(struct tps6507x_dev), GFP_KERNEL); + tps6507x = devm_kzalloc(&i2c->dev, sizeof(struct tps6507x_dev), + GFP_KERNEL); if (tps6507x == NULL) return -ENOMEM; @@ -98,19 +98,8 @@ static int tps6507x_i2c_probe(struct i2c_client *i2c, tps6507x->read_dev = tps6507x_i2c_read_device; tps6507x->write_dev = tps6507x_i2c_write_device; - ret = mfd_add_devices(tps6507x->dev, -1, - tps6507x_devs, ARRAY_SIZE(tps6507x_devs), - NULL, 0, NULL); - - if (ret < 0) - goto err; - - return ret; - -err: - mfd_remove_devices(tps6507x->dev); - kfree(tps6507x); - return ret; + return mfd_add_devices(tps6507x->dev, -1, tps6507x_devs, + ARRAY_SIZE(tps6507x_devs), NULL, 0, NULL); } static int tps6507x_i2c_remove(struct i2c_client *i2c) @@ -118,8 +107,6 @@ static int tps6507x_i2c_remove(struct i2c_client *i2c) struct tps6507x_dev *tps6507x = i2c_get_clientdata(i2c); mfd_remove_devices(tps6507x->dev); - kfree(tps6507x); - return 0; } -- cgit v1.1