From a0c7c1d48ea9f53c67c79eda498bb8eda1422748 Mon Sep 17 00:00:00 2001 From: Marc Reilly Date: Sun, 1 Apr 2012 16:41:38 +1000 Subject: mfd: Move the mc13xxx-core spi specific code into a separate module All spi specific code is moved into a new module. The mc13xxx struct moves to a new local include file by necessity. A new config choice selects the SPI bus type support and by default is value of SPI_MASTER to remain compatible with existing configs. Signed-off-by: Marc Reilly Signed-off-by: Samuel Ortiz --- drivers/mfd/mc13xxx-core.c | 148 ++------------------------------------------- 1 file changed, 5 insertions(+), 143 deletions(-) (limited to 'drivers/mfd/mc13xxx-core.c') diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c index d761a2e..13a32b7 100644 --- a/drivers/mfd/mc13xxx-core.c +++ b/drivers/mfd/mc13xxx-core.c @@ -15,36 +15,13 @@ #include #include #include -#include #include #include #include #include #include -#include -#include -enum mc13xxx_id { - MC13XXX_ID_MC13783, - MC13XXX_ID_MC13892, - MC13XXX_ID_INVALID, -}; - -struct mc13xxx { - struct regmap *regmap; - - struct device *dev; - enum mc13xxx_id ictype; - - struct mutex lock; - int irq; - int flags; - - irq_handler_t irqhandler[MC13XXX_NUM_IRQ]; - void *irqdata[MC13XXX_NUM_IRQ]; - - int adcflags; -}; +#include "mc13xxx.h" #define MC13XXX_IRQSTAT0 0 #define MC13XXX_IRQSTAT0_ADCDONEI (1 << 0) @@ -151,8 +128,6 @@ struct mc13xxx { #define MC13XXX_ADC2 45 -#define MC13XXX_NUMREGS 0x3f - void mc13xxx_lock(struct mc13xxx *mc13xxx) { if (!mutex_trylock(&mc13xxx->lock)) { @@ -674,90 +649,7 @@ static inline int mc13xxx_probe_flags_dt(struct mc13xxx *mc13xxx) } #endif -static const struct spi_device_id mc13xxx_device_id[] = { - { - .name = "mc13783", - .driver_data = MC13XXX_ID_MC13783, - }, { - .name = "mc13892", - .driver_data = MC13XXX_ID_MC13892, - }, { - /* sentinel */ - } -}; -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, }, - { /* sentinel */ } -}; -MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids); - -static struct regmap_config mc13xxx_regmap_spi_config = { - .reg_bits = 7, - .pad_bits = 1, - .val_bits = 24, - - .max_register = MC13XXX_NUMREGS, - - .cache_type = REGCACHE_NONE, -}; - -static int mc13xxx_common_init(struct mc13xxx *mc13xxx, - struct mc13xxx_platform_data *pdata, int irq); - -static void mc13xxx_common_cleanup(struct mc13xxx *mc13xxx); - -static int mc13xxx_spi_probe(struct spi_device *spi) -{ - const struct of_device_id *of_id; - struct spi_driver *sdrv = to_spi_driver(spi->dev.driver); - struct mc13xxx *mc13xxx; - struct mc13xxx_platform_data *pdata = dev_get_platdata(&spi->dev); - int ret; - - of_id = of_match_device(mc13xxx_dt_ids, &spi->dev); - if (of_id) - sdrv->id_table = &mc13xxx_device_id[(enum mc13xxx_id) of_id->data]; - - mc13xxx = kzalloc(sizeof(*mc13xxx), GFP_KERNEL); - if (!mc13xxx) - return -ENOMEM; - - dev_set_drvdata(&spi->dev, mc13xxx); - spi->mode = SPI_MODE_0 | SPI_CS_HIGH; - spi->bits_per_word = 32; - - mc13xxx->dev = &spi->dev; - mutex_init(&mc13xxx->lock); - - mc13xxx->regmap = regmap_init_spi(spi, &mc13xxx_regmap_spi_config); - if (IS_ERR(mc13xxx->regmap)) { - ret = PTR_ERR(mc13xxx->regmap); - dev_err(mc13xxx->dev, "Failed to initialize register map: %d\n", - ret); - dev_set_drvdata(&spi->dev, NULL); - kfree(mc13xxx); - return ret; - } - - ret = mc13xxx_common_init(mc13xxx, pdata, spi->irq); - - if (ret) { - dev_set_drvdata(&spi->dev, NULL); - } 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"); - } - - return ret; -} - -static int mc13xxx_common_init(struct mc13xxx *mc13xxx, +int mc13xxx_common_init(struct mc13xxx *mc13xxx, struct mc13xxx_platform_data *pdata, int irq) { int ret; @@ -823,17 +715,9 @@ err_revision: return 0; } +EXPORT_SYMBOL_GPL(mc13xxx_common_init); -static int __devexit mc13xxx_spi_remove(struct spi_device *spi) -{ - struct mc13xxx *mc13xxx = dev_get_drvdata(&spi->dev); - - mc13xxx_common_cleanup(mc13xxx); - - return 0; -} - -static void mc13xxx_common_cleanup(struct mc13xxx *mc13xxx) +void mc13xxx_common_cleanup(struct mc13xxx *mc13xxx) { free_irq(mc13xxx->irq, mc13xxx); @@ -843,29 +727,7 @@ static void mc13xxx_common_cleanup(struct mc13xxx *mc13xxx) kfree(mc13xxx); } - -static struct spi_driver mc13xxx_spi_driver = { - .id_table = mc13xxx_device_id, - .driver = { - .name = "mc13xxx", - .owner = THIS_MODULE, - .of_match_table = mc13xxx_dt_ids, - }, - .probe = mc13xxx_spi_probe, - .remove = __devexit_p(mc13xxx_spi_remove), -}; - -static int __init mc13xxx_init(void) -{ - return spi_register_driver(&mc13xxx_spi_driver); -} -subsys_initcall(mc13xxx_init); - -static void __exit mc13xxx_exit(void) -{ - spi_unregister_driver(&mc13xxx_spi_driver); -} -module_exit(mc13xxx_exit); +EXPORT_SYMBOL_GPL(mc13xxx_common_cleanup); MODULE_DESCRIPTION("Core driver for Freescale MC13XXX PMIC"); MODULE_AUTHOR("Uwe Kleine-Koenig "); -- cgit v1.1