diff options
108 files changed, 3913 insertions, 1145 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 39c8de0..ab1047c 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -811,3 +811,14 @@ Description: Writing '1' stores the current device configuration into on-chip EEPROM. After power-up or chip reset the device will automatically load the saved configuration. + +What: /sys/.../iio:deviceX/in_intensity_red_integration_time +What: /sys/.../iio:deviceX/in_intensity_green_integration_time +What: /sys/.../iio:deviceX/in_intensity_blue_integration_time +What: /sys/.../iio:deviceX/in_intensity_clear_integration_time +What: /sys/.../iio:deviceX/in_illuminance_integration_time +KernelVersion: 3.12 +Contact: linux-iio@vger.kernel.org +Description: + This attribute is used to get/set the integration time in + seconds. diff --git a/Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt b/Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt new file mode 100644 index 0000000..9231c82 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt @@ -0,0 +1,21 @@ +* Sharp GP2AP020A00F I2C Proximity/ALS sensor + +The proximity detector sensor requires power supply +for its built-in led. It is also defined by this binding. + +Required properties: + + - compatible : should be "sharp,gp2ap020a00f" + - reg : the I2C slave address of the light sensor + - interrupts : interrupt specifier for the sole interrupt generated + by the device + - vled-supply : VLED power supply, as covered in ../regulator/regulator.txt + +Example: + +gp2ap020a00f@39 { + compatible = "sharp,gp2ap020a00f"; + reg = <0x39>; + interrupts = <2 0>; + vled-supply = <...>; +}; diff --git a/MAINTAINERS b/MAINTAINERS index e61c2e8..e8ee569 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4195,7 +4195,7 @@ S: Maintained F: drivers/media/rc/iguanair.c IIO SUBSYSTEM AND DRIVERS -M: Jonathan Cameron <jic23@cam.ac.uk> +M: Jonathan Cameron <jic23@kernel.org> L: linux-iio@vger.kernel.org S: Maintained F: drivers/iio/ @@ -7947,7 +7947,7 @@ S: Maintained F: drivers/staging/media/go7007/ STAGING - INDUSTRIAL IO -M: Jonathan Cameron <jic23@cam.ac.uk> +M: Jonathan Cameron <jic23@kernel.org> L: linux-iio@vger.kernel.org S: Odd Fixes F: drivers/staging/iio/ diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c index 12e32e6..bda7a83 100644 --- a/drivers/iio/accel/bma180.c +++ b/drivers/iio/accel/bma180.c @@ -471,13 +471,10 @@ static irqreturn_t bma180_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct bma180_data *data = iio_priv(indio_dev); + int64_t time_ns = iio_get_time_ns(); int bit, ret, i = 0; mutex_lock(&data->mutex); - if (indio_dev->scan_timestamp) { - ret = indio_dev->scan_bytes / sizeof(s64) - 1; - ((s64 *)data->buff)[ret] = iio_get_time_ns(); - } for_each_set_bit(bit, indio_dev->buffer->scan_mask, indio_dev->masklength) { @@ -490,7 +487,7 @@ static irqreturn_t bma180_trigger_handler(int irq, void *p) } mutex_unlock(&data->mutex); - iio_push_to_buffers(indio_dev, (u8 *)data->buff); + iio_push_to_buffers_with_timestamp(indio_dev, data->buff, time_ns); err: iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c index 46d22f3..dcda173 100644 --- a/drivers/iio/accel/hid-sensor-accel-3d.c +++ b/drivers/iio/accel/hid-sensor-accel-3d.c @@ -182,10 +182,11 @@ static const struct iio_info accel_3d_info = { }; /* Function to push data to buffer */ -static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len) +static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data, + int len) { dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n"); - iio_push_to_buffers(indio_dev, (u8 *)data); + iio_push_to_buffers(indio_dev, data); } /* Callback handler to send event after all samples are received and captured */ @@ -200,7 +201,7 @@ static int accel_3d_proc_event(struct hid_sensor_hub_device *hsdev, accel_state->common_attributes.data_ready); if (accel_state->common_attributes.data_ready) hid_sensor_push_data(indio_dev, - (u8 *)accel_state->accel_val, + accel_state->accel_val, sizeof(accel_state->accel_val)); return 0; diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c index 1458343..38caedc 100644 --- a/drivers/iio/accel/st_accel_core.c +++ b/drivers/iio/accel/st_accel_core.c @@ -452,8 +452,9 @@ static const struct iio_trigger_ops st_accel_trigger_ops = { int st_accel_common_probe(struct iio_dev *indio_dev, struct st_sensors_platform_data *plat_data) { - int err; struct st_sensor_data *adata = iio_priv(indio_dev); + int irq = adata->get_irq_data_ready(indio_dev); + int err; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &accel_info; @@ -461,7 +462,7 @@ int st_accel_common_probe(struct iio_dev *indio_dev, err = st_sensors_check_device_support(indio_dev, ARRAY_SIZE(st_accel_sensors), st_accel_sensors); if (err < 0) - goto st_accel_common_probe_error; + return err; adata->num_data_channels = ST_ACCEL_NUMBER_DATA_CHANNELS; adata->multiread_bit = adata->sensor->multi_read_bit; @@ -478,13 +479,13 @@ int st_accel_common_probe(struct iio_dev *indio_dev, err = st_sensors_init_sensor(indio_dev, plat_data); if (err < 0) - goto st_accel_common_probe_error; + return err; - if (adata->get_irq_data_ready(indio_dev) > 0) { - err = st_accel_allocate_ring(indio_dev); - if (err < 0) - goto st_accel_common_probe_error; + err = st_accel_allocate_ring(indio_dev); + if (err < 0) + return err; + if (irq > 0) { err = st_sensors_allocate_trigger(indio_dev, ST_ACCEL_TRIGGER_OPS); if (err < 0) @@ -495,15 +496,14 @@ int st_accel_common_probe(struct iio_dev *indio_dev, if (err) goto st_accel_device_register_error; - return err; + return 0; st_accel_device_register_error: - if (adata->get_irq_data_ready(indio_dev) > 0) + if (irq > 0) st_sensors_deallocate_trigger(indio_dev); st_accel_probe_trigger_error: - if (adata->get_irq_data_ready(indio_dev) > 0) - st_accel_deallocate_ring(indio_dev); -st_accel_common_probe_error: + st_accel_deallocate_ring(indio_dev); + return err; } EXPORT_SYMBOL(st_accel_common_probe); @@ -513,10 +513,10 @@ void st_accel_common_remove(struct iio_dev *indio_dev) struct st_sensor_data *adata = iio_priv(indio_dev); iio_device_unregister(indio_dev); - if (adata->get_irq_data_ready(indio_dev) > 0) { + if (adata->get_irq_data_ready(indio_dev) > 0) st_sensors_deallocate_trigger(indio_dev); - st_accel_deallocate_ring(indio_dev); - } + + st_accel_deallocate_ring(indio_dev); } EXPORT_SYMBOL(st_accel_common_remove); diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 09371cb..8b88518 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -145,6 +145,16 @@ config MCP320X This driver can also be built as a module. If so, the module will be called mcp320x. +config MCP3422 + tristate "Microchip Technology MCP3422/3/4 driver" + depends on I2C + help + Say yes here to build support for Microchip Technology's MCP3422, + MCP3423 or MCP3424 analog to digital converters. + + This driver can also be built as a module. If so, the module will be + called mcp3422. + config NAU7802 tristate "Nuvoton NAU7802 ADC driver" depends on I2C @@ -167,6 +177,7 @@ config TI_ADC081C config TI_AM335X_ADC tristate "TI's AM335X ADC driver" depends on MFD_TI_AM335X_TSCADC + select IIO_KFIFO_BUF help Say yes here to build support for Texas Instruments ADC driver which is also a MFD client. diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile index 33656ef..ba9a10a 100644 --- a/drivers/iio/adc/Makefile +++ b/drivers/iio/adc/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_EXYNOS_ADC) += exynos_adc.o obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o obj-$(CONFIG_MAX1363) += max1363.o obj-$(CONFIG_MCP320X) += mcp320x.o +obj-$(CONFIG_MCP3422) += mcp3422.o obj-$(CONFIG_NAU7802) += nau7802.o obj-$(CONFIG_TI_ADC081C) += ti-adc081c.o obj-$(CONFIG_TI_AM335X_ADC) += ti_am335x_adc.o diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c index 371731d..656aa3e 100644 --- a/drivers/iio/adc/ad7266.c +++ b/drivers/iio/adc/ad7266.c @@ -96,9 +96,8 @@ static irqreturn_t ad7266_trigger_handler(int irq, void *p) ret = spi_read(st->spi, st->data, 4); if (ret == 0) { - if (indio_dev->scan_timestamp) - ((s64 *)st->data)[1] = pf->timestamp; - iio_push_to_buffers(indio_dev, (u8 *)st->data); + iio_push_to_buffers_with_timestamp(indio_dev, st->data, + pf->timestamp); } iio_trigger_notify_done(indio_dev->trig); @@ -293,7 +292,7 @@ static const struct iio_info ad7266_info = { .driver_module = THIS_MODULE, }; -static unsigned long ad7266_available_scan_masks[] = { +static const unsigned long ad7266_available_scan_masks[] = { 0x003, 0x00c, 0x030, @@ -303,14 +302,14 @@ static unsigned long ad7266_available_scan_masks[] = { 0x000, }; -static unsigned long ad7266_available_scan_masks_diff[] = { +static const unsigned long ad7266_available_scan_masks_diff[] = { 0x003, 0x00c, 0x030, 0x000, }; -static unsigned long ad7266_available_scan_masks_fixed[] = { +static const unsigned long ad7266_available_scan_masks_fixed[] = { 0x003, 0x000, }; @@ -318,7 +317,7 @@ static unsigned long ad7266_available_scan_masks_fixed[] = { struct ad7266_chan_info { const struct iio_chan_spec *channels; unsigned int num_channels; - unsigned long *scan_masks; + const unsigned long *scan_masks; }; #define AD7266_CHAN_INFO_INDEX(_differential, _signed, _fixed) \ diff --git a/drivers/iio/adc/ad7298.c b/drivers/iio/adc/ad7298.c index 85d1481..2a3b65c 100644 --- a/drivers/iio/adc/ad7298.c +++ b/drivers/iio/adc/ad7298.c @@ -159,20 +159,14 @@ static irqreturn_t ad7298_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct ad7298_state *st = iio_priv(indio_dev); - s64 time_ns = 0; int b_sent; b_sent = spi_sync(st->spi, &st->ring_msg); if (b_sent) goto done; - if (indio_dev->scan_timestamp) { - time_ns = iio_get_time_ns(); - memcpy((u8 *)st->rx_buf + indio_dev->scan_bytes - sizeof(s64), - &time_ns, sizeof(time_ns)); - } - - iio_push_to_buffers(indio_dev, (u8 *)st->rx_buf); + iio_push_to_buffers_with_timestamp(indio_dev, st->rx_buf, + iio_get_time_ns()); done: iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c index 6d2b1d8..8d808b9 100644 --- a/drivers/iio/adc/ad7476.c +++ b/drivers/iio/adc/ad7476.c @@ -64,19 +64,14 @@ static irqreturn_t ad7476_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct ad7476_state *st = iio_priv(indio_dev); - s64 time_ns; int b_sent; b_sent = spi_sync(st->spi, &st->msg); if (b_sent < 0) goto done; - time_ns = iio_get_time_ns(); - - if (indio_dev->scan_timestamp) - ((s64 *)st->data)[1] = time_ns; - - iio_push_to_buffers(indio_dev, st->data); + iio_push_to_buffers_with_timestamp(indio_dev, st->data, + iio_get_time_ns()); done: iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/iio/adc/ad7887.c b/drivers/iio/adc/ad7887.c index 9dd077b..faedd0e 100644 --- a/drivers/iio/adc/ad7887.c +++ b/drivers/iio/adc/ad7887.c @@ -121,20 +121,14 @@ static irqreturn_t ad7887_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct ad7887_state *st = iio_priv(indio_dev); - s64 time_ns; int b_sent; b_sent = spi_sync(st->spi, st->ring_msg); if (b_sent) goto done; - time_ns = iio_get_time_ns(); - - if (indio_dev->scan_timestamp) - memcpy(st->data + indio_dev->scan_bytes - sizeof(s64), - &time_ns, sizeof(time_ns)); - - iio_push_to_buffers(indio_dev, st->data); + iio_push_to_buffers_with_timestamp(indio_dev, st->data, + iio_get_time_ns()); done: iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/iio/adc/ad7923.c b/drivers/iio/adc/ad7923.c index 4108dbb..28732c2 100644 --- a/drivers/iio/adc/ad7923.c +++ b/drivers/iio/adc/ad7923.c @@ -174,20 +174,14 @@ static irqreturn_t ad7923_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct ad7923_state *st = iio_priv(indio_dev); - s64 time_ns = 0; int b_sent; b_sent = spi_sync(st->spi, &st->ring_msg); if (b_sent) goto done; - if (indio_dev->scan_timestamp) { - time_ns = iio_get_time_ns(); - memcpy((u8 *)st->rx_buf + indio_dev->scan_bytes - sizeof(s64), - &time_ns, sizeof(time_ns)); - } - - iio_push_to_buffers(indio_dev, (u8 *)st->rx_buf); + iio_push_to_buffers_with_timestamp(indio_dev, st->rx_buf, + iio_get_time_ns()); done: iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c index f0d6335..2b59112 100644 --- a/drivers/iio/adc/ad_sigma_delta.c +++ b/drivers/iio/adc/ad_sigma_delta.c @@ -368,10 +368,6 @@ static irqreturn_t ad_sd_trigger_handler(int irq, void *p) memset(data, 0x00, 16); - /* Guaranteed to be aligned with 8 byte boundary */ - if (indio_dev->scan_timestamp) - ((s64 *)data)[1] = pf->timestamp; - reg_size = indio_dev->channels[0].scan_type.realbits + indio_dev->channels[0].scan_type.shift; reg_size = DIV_ROUND_UP(reg_size, 8); @@ -391,7 +387,7 @@ static irqreturn_t ad_sd_trigger_handler(int irq, void *p) break; } - iio_push_to_buffers(indio_dev, (uint8_t *)data); + iio_push_to_buffers_with_timestamp(indio_dev, data, pf->timestamp); iio_trigger_notify_done(indio_dev->trig); sigma_delta->irq_dis = false; diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index 84be63b..5c8f690 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -83,13 +83,7 @@ static irqreturn_t at91_adc_trigger_handler(int irq, void *p) j++; } - if (idev->scan_timestamp) { - s64 *timestamp = (s64 *)((u8 *)st->buffer + - ALIGN(j, sizeof(s64))); - *timestamp = pf->timestamp; - } - - iio_push_to_buffers(idev, (u8 *)st->buffer); + iio_push_to_buffers_with_timestamp(idev, st->buffer, pf->timestamp); iio_trigger_notify_done(idev->trig); @@ -279,7 +273,7 @@ static int at91_adc_trigger_init(struct iio_dev *idev) int i, ret; st->trig = devm_kzalloc(&idev->dev, - st->trigger_number * sizeof(st->trig), + st->trigger_number * sizeof(*st->trig), GFP_KERNEL); if (st->trig == NULL) { diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c index 4fb35d1..b4bc166 100644 --- a/drivers/iio/adc/max1363.c +++ b/drivers/iio/adc/max1363.c @@ -1436,7 +1436,6 @@ static irqreturn_t max1363_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct max1363_state *st = iio_priv(indio_dev); - s64 time_ns; __u8 *rxbuf; int b_sent; size_t d_size; @@ -1470,11 +1469,7 @@ static irqreturn_t max1363_trigger_handler(int irq, void *p) if (b_sent < 0) goto done_free; - time_ns = iio_get_time_ns(); - - if (indio_dev->scan_timestamp) - memcpy(rxbuf + d_size - sizeof(s64), &time_ns, sizeof(time_ns)); - iio_push_to_buffers(indio_dev, rxbuf); + iio_push_to_buffers_with_timestamp(indio_dev, rxbuf, iio_get_time_ns()); done_free: kfree(rxbuf); @@ -1484,12 +1479,6 @@ done: return IRQ_HANDLED; } -static const struct iio_buffer_setup_ops max1363_buffered_setup_ops = { - .postenable = &iio_triggered_buffer_postenable, - .preenable = &iio_sw_buffer_preenable, - .predisable = &iio_triggered_buffer_predisable, -}; - static int max1363_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -1559,7 +1548,7 @@ static int max1363_probe(struct i2c_client *client, goto error_disable_reg; ret = iio_triggered_buffer_setup(indio_dev, NULL, - &max1363_trigger_handler, &max1363_buffered_setup_ops); + &max1363_trigger_handler, NULL); if (ret) goto error_disable_reg; diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c new file mode 100644 index 0000000..bc93f53 --- /dev/null +++ b/drivers/iio/adc/mcp3422.c @@ -0,0 +1,409 @@ +/* + * mcp3422.c - driver for the Microchip mcp3422/3/4 chip family + * + * Copyright (C) 2013, Angelo Compagnucci + * Author: Angelo Compagnucci <angelo.compagnucci@gmail.com> + * + * Datasheet: http://ww1.microchip.com/downloads/en/devicedoc/22088b.pdf + * + * This driver exports the value of analog input voltage to sysfs, the + * voltage unit is nV. + * + * 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 <linux/err.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/sysfs.h> + +#include <linux/iio/iio.h> +#include <linux/iio/sysfs.h> + +/* Masks */ +#define MCP3422_CHANNEL_MASK 0x60 +#define MCP3422_PGA_MASK 0x03 +#define MCP3422_SRATE_MASK 0x0C +#define MCP3422_SRATE_240 0x0 +#define MCP3422_SRATE_60 0x1 +#define MCP3422_SRATE_15 0x2 +#define MCP3422_SRATE_3 0x3 +#define MCP3422_PGA_1 0 +#define MCP3422_PGA_2 1 +#define MCP3422_PGA_4 2 +#define MCP3422_PGA_8 3 +#define MCP3422_CONT_SAMPLING 0x10 + +#define MCP3422_CHANNEL(config) (((config) & MCP3422_CHANNEL_MASK) >> 5) +#define MCP3422_PGA(config) ((config) & MCP3422_PGA_MASK) +#define MCP3422_SAMPLE_RATE(config) (((config) & MCP3422_SRATE_MASK) >> 2) + +#define MCP3422_CHANNEL_VALUE(value) (((value) << 5) & MCP3422_CHANNEL_MASK) +#define MCP3422_PGA_VALUE(value) ((value) & MCP3422_PGA_MASK) +#define MCP3422_SAMPLE_RATE_VALUE(value) ((value << 2) & MCP3422_SRATE_MASK) + +#define MCP3422_CHAN(_index) \ + { \ + .type = IIO_VOLTAGE, \ + .indexed = 1, \ + .channel = _index, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) \ + | BIT(IIO_CHAN_INFO_SCALE), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ), \ + } + +/* LSB is in nV to eliminate floating point */ +static const u32 rates_to_lsb[] = {1000000, 250000, 62500, 15625}; + +/* + * scales calculated as: + * rates_to_lsb[sample_rate] / (1 << pga); + * pga is 1 for 0, 2 + */ + +static const int mcp3422_scales[4][4] = { + { 1000000, 250000, 62500, 15625 }, + { 500000 , 125000, 31250, 7812 }, + { 250000 , 62500 , 15625, 3906 }, + { 125000 , 31250 , 7812 , 1953 } }; + +/* Constant msleep times for data acquisitions */ +static const int mcp3422_read_times[4] = { + [MCP3422_SRATE_240] = 1000 / 240, + [MCP3422_SRATE_60] = 1000 / 60, + [MCP3422_SRATE_15] = 1000 / 15, + [MCP3422_SRATE_3] = 1000 / 3 }; + +/* sample rates to integer conversion table */ +static const int mcp3422_sample_rates[4] = { + [MCP3422_SRATE_240] = 240, + [MCP3422_SRATE_60] = 60, + [MCP3422_SRATE_15] = 15, + [MCP3422_SRATE_3] = 3 }; + +/* sample rates to sign extension table */ +static const int mcp3422_sign_extend[4] = { + [MCP3422_SRATE_240] = 12, + [MCP3422_SRATE_60] = 14, + [MCP3422_SRATE_15] = 16, + [MCP3422_SRATE_3] = 18 }; + +/* Client data (each client gets its own) */ +struct mcp3422 { + struct i2c_client *i2c; + u8 config; + u8 pga[4]; + struct mutex lock; +}; + +static int mcp3422_update_config(struct mcp3422 *adc, u8 newconfig) +{ + int ret; + + mutex_lock(&adc->lock); + + ret = i2c_master_send(adc->i2c, &newconfig, 1); + if (ret > 0) { + adc->config = newconfig; + ret = 0; + } + + mutex_unlock(&adc->lock); + + return ret; +} + +static int mcp3422_read(struct mcp3422 *adc, int *value, u8 *config) +{ + int ret = 0; + u8 sample_rate = MCP3422_SAMPLE_RATE(adc->config); + u8 buf[4] = {0, 0, 0, 0}; + u32 temp; + + if (sample_rate == MCP3422_SRATE_3) { + ret = i2c_master_recv(adc->i2c, buf, 4); + temp = buf[0] << 16 | buf[1] << 8 | buf[2]; + *config = buf[3]; + } else { + ret = i2c_master_recv(adc->i2c, buf, 3); + temp = buf[0] << 8 | buf[1]; + *config = buf[2]; + } + + *value = sign_extend32(temp, mcp3422_sign_extend[sample_rate]); + + return ret; +} + +static int mcp3422_read_channel(struct mcp3422 *adc, + struct iio_chan_spec const *channel, int *value) +{ + int ret; + u8 config; + u8 req_channel = channel->channel; + + if (req_channel != MCP3422_CHANNEL(adc->config)) { + config = adc->config; + config &= ~MCP3422_CHANNEL_MASK; + config |= MCP3422_CHANNEL_VALUE(req_channel); + config &= ~MCP3422_PGA_MASK; + config |= MCP3422_PGA_VALUE(adc->pga[req_channel]); + ret = mcp3422_update_config(adc, config); + if (ret < 0) + return ret; + msleep(mcp3422_read_times[MCP3422_SAMPLE_RATE(adc->config)]); + } + + return mcp3422_read(adc, value, &config); +} + +static int mcp3422_read_raw(struct iio_dev *iio, + struct iio_chan_spec const *channel, int *val1, + int *val2, long mask) +{ + struct mcp3422 *adc = iio_priv(iio); + int err; + + u8 sample_rate = MCP3422_SAMPLE_RATE(adc->config); + u8 pga = MCP3422_PGA(adc->config); + + switch (mask) { + case IIO_CHAN_INFO_RAW: + err = mcp3422_read_channel(adc, channel, val1); + if (err < 0) + return -EINVAL; + return IIO_VAL_INT; + + case IIO_CHAN_INFO_SCALE: + + *val1 = 0; + *val2 = mcp3422_scales[sample_rate][pga]; + return IIO_VAL_INT_PLUS_NANO; + + case IIO_CHAN_INFO_SAMP_FREQ: + *val1 = mcp3422_sample_rates[MCP3422_SAMPLE_RATE(adc->config)]; + return IIO_VAL_INT; + + default: + break; + } + + return -EINVAL; +} + +static int mcp3422_write_raw(struct iio_dev *iio, + struct iio_chan_spec const *channel, int val1, + int val2, long mask) +{ + struct mcp3422 *adc = iio_priv(iio); + u8 temp; + u8 config = adc->config; + u8 req_channel = channel->channel; + u8 sample_rate = MCP3422_SAMPLE_RATE(config); + u8 i; + + switch (mask) { + case IIO_CHAN_INFO_SCALE: + if (val1 != 0) + return -EINVAL; + + for (i = 0; i < ARRAY_SIZE(mcp3422_scales[0]); i++) { + if (val2 == mcp3422_scales[sample_rate][i]) { + adc->pga[req_channel] = i; + + config &= ~MCP3422_CHANNEL_MASK; + config |= MCP3422_CHANNEL_VALUE(req_channel); + config &= ~MCP3422_PGA_MASK; + config |= MCP3422_PGA_VALUE(adc->pga[req_channel]); + + return mcp3422_update_config(adc, config); + } + } + return -EINVAL; + + case IIO_CHAN_INFO_SAMP_FREQ: + switch (val1) { + case 240: + temp = MCP3422_SRATE_240; + break; + case 60: + temp = MCP3422_SRATE_60; + break; + case 15: + temp = MCP3422_SRATE_15; + break; + case 3: + temp = MCP3422_SRATE_3; + break; + default: + return -EINVAL; + } + + config &= ~MCP3422_CHANNEL_MASK; + config |= MCP3422_CHANNEL_VALUE(req_channel); + config &= ~MCP3422_SRATE_MASK; + config |= MCP3422_SAMPLE_RATE_VALUE(temp); + + return mcp3422_update_config(adc, config); + + default: + break; + } + + return -EINVAL; +} + +static int mcp3422_write_raw_get_fmt(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, long mask) +{ + switch (mask) { + case IIO_CHAN_INFO_SCALE: + return IIO_VAL_INT_PLUS_NANO; + case IIO_CHAN_INFO_SAMP_FREQ: + return IIO_VAL_INT_PLUS_MICRO; + default: + return -EINVAL; + } +} + +static ssize_t mcp3422_show_scales(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mcp3422 *adc = iio_priv(dev_to_iio_dev(dev)); + u8 sample_rate = MCP3422_SAMPLE_RATE(adc->config); + + return sprintf(buf, "0.%09u 0.%09u 0.%09u 0.%09u\n", + mcp3422_scales[sample_rate][0], + mcp3422_scales[sample_rate][1], + mcp3422_scales[sample_rate][2], + mcp3422_scales[sample_rate][3]); +} + +static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("240 60 15 3"); +static IIO_DEVICE_ATTR(in_voltage_scale_available, S_IRUGO, + mcp3422_show_scales, NULL, 0); + +static struct attribute *mcp3422_attributes[] = { + &iio_const_attr_sampling_frequency_available.dev_attr.attr, + &iio_dev_attr_in_voltage_scale_available.dev_attr.attr, + NULL, +}; + +static const struct attribute_group mcp3422_attribute_group = { + .attrs = mcp3422_attributes, +}; + +static const struct iio_chan_spec mcp3422_channels[] = { + MCP3422_CHAN(0), + MCP3422_CHAN(1), +}; + +static const struct iio_chan_spec mcp3424_channels[] = { + MCP3422_CHAN(0), + MCP3422_CHAN(1), + MCP3422_CHAN(2), + MCP3422_CHAN(3), +}; + +static const struct iio_info mcp3422_info = { + .read_raw = mcp3422_read_raw, + .write_raw = mcp3422_write_raw, + .write_raw_get_fmt = mcp3422_write_raw_get_fmt, + .attrs = &mcp3422_attribute_group, + .driver_module = THIS_MODULE, +}; + +static int mcp3422_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct iio_dev *indio_dev; + struct mcp3422 *adc; + int err; + u8 config; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) + return -ENODEV; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adc)); + if (!indio_dev) + return -ENOMEM; + + adc = iio_priv(indio_dev); + adc->i2c = client; + + mutex_init(&adc->lock); + + indio_dev->dev.parent = &client->dev; + indio_dev->name = dev_name(&client->dev); + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->info = &mcp3422_info; + + switch ((unsigned int)(id->driver_data)) { + case 2: + case 3: + indio_dev->channels = mcp3422_channels; + indio_dev->num_channels = ARRAY_SIZE(mcp3422_channels); + break; + case 4: + indio_dev->channels = mcp3424_channels; + indio_dev->num_channels = ARRAY_SIZE(mcp3424_channels); + break; + } + + /* meaningful default configuration */ + config = (MCP3422_CONT_SAMPLING + | MCP3422_CHANNEL_VALUE(1) + | MCP3422_PGA_VALUE(MCP3422_PGA_1) + | MCP3422_SAMPLE_RATE_VALUE(MCP3422_SRATE_240)); + mcp3422_update_config(adc, config); + + err = iio_device_register(indio_dev); + if (err < 0) + return err; + + i2c_set_clientdata(client, indio_dev); + + return 0; +} + +static int mcp3422_remove(struct i2c_client *client) +{ + iio_device_unregister(i2c_get_clientdata(client)); + return 0; +} + +static const struct i2c_device_id mcp3422_id[] = { + { "mcp3422", 2 }, + { "mcp3423", 3 }, + { "mcp3424", 4 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, mcp3422_id); + +#ifdef CONFIG_OF +static const struct of_device_id mcp3422_of_match[] = { + { .compatible = "mcp3422" }, + { } +}; +MODULE_DEVICE_TABLE(of, mcp3422_of_match); +#endif + +static struct i2c_driver mcp3422_driver = { + .driver = { + .name = "mcp3422", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(mcp3422_of_match), + }, + .probe = mcp3422_probe, + .remove = mcp3422_remove, + .id_table = mcp3422_id, +}; +module_i2c_driver(mcp3422_driver); + +MODULE_AUTHOR("Angelo Compagnucci <angelo.compagnucci@gmail.com>"); +MODULE_DESCRIPTION("Microchip mcp3422/3/4 driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index a952538..8fb5429 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -28,12 +28,16 @@ #include <linux/iio/driver.h> #include <linux/mfd/ti_am335x_tscadc.h> +#include <linux/iio/buffer.h> +#include <linux/iio/kfifo_buf.h> struct tiadc_device { struct ti_tscadc_dev *mfd_tscadc; int channels; u8 channel_line[8]; u8 channel_step[8]; + int buffer_en_ch_steps; + u16 data[8]; }; static unsigned int tiadc_readl(struct tiadc_device *adc, unsigned int reg) @@ -56,8 +60,14 @@ static u32 get_adc_step_mask(struct tiadc_device *adc_dev) return step_en; } -static void tiadc_step_config(struct tiadc_device *adc_dev) +static u32 get_adc_step_bit(struct tiadc_device *adc_dev, int chan) { + return 1 << adc_dev->channel_step[chan]; +} + +static void tiadc_step_config(struct iio_dev *indio_dev) +{ + struct tiadc_device *adc_dev = iio_priv(indio_dev); unsigned int stepconfig; int i, steps; @@ -72,7 +82,11 @@ static void tiadc_step_config(struct tiadc_device *adc_dev) */ steps = TOTAL_STEPS - adc_dev->channels; - stepconfig = STEPCONFIG_AVG_16 | STEPCONFIG_FIFO1; + if (iio_buffer_enabled(indio_dev)) + stepconfig = STEPCONFIG_AVG_16 | STEPCONFIG_FIFO1 + | STEPCONFIG_MODE_SWCNT; + else + stepconfig = STEPCONFIG_AVG_16 | STEPCONFIG_FIFO1; for (i = 0; i < adc_dev->channels; i++) { int chan; @@ -85,9 +99,175 @@ static void tiadc_step_config(struct tiadc_device *adc_dev) adc_dev->channel_step[i] = steps; steps++; } +} + +static irqreturn_t tiadc_irq_h(int irq, void *private) +{ + struct iio_dev *indio_dev = private; + struct tiadc_device *adc_dev = iio_priv(indio_dev); + unsigned int status, config; + status = tiadc_readl(adc_dev, REG_IRQSTATUS); + + /* + * ADC and touchscreen share the IRQ line. + * FIFO0 interrupts are used by TSC. Handle FIFO1 IRQs here only + */ + if (status & IRQENB_FIFO1OVRRUN) { + /* FIFO Overrun. Clear flag. Disable/Enable ADC to recover */ + config = tiadc_readl(adc_dev, REG_CTRL); + config &= ~(CNTRLREG_TSCSSENB); + tiadc_writel(adc_dev, REG_CTRL, config); + tiadc_writel(adc_dev, REG_IRQSTATUS, IRQENB_FIFO1OVRRUN + | IRQENB_FIFO1UNDRFLW | IRQENB_FIFO1THRES); + tiadc_writel(adc_dev, REG_CTRL, (config | CNTRLREG_TSCSSENB)); + return IRQ_HANDLED; + } else if (status & IRQENB_FIFO1THRES) { + /* Disable irq and wake worker thread */ + tiadc_writel(adc_dev, REG_IRQCLR, IRQENB_FIFO1THRES); + return IRQ_WAKE_THREAD; + } + + return IRQ_NONE; +} + +static irqreturn_t tiadc_worker_h(int irq, void *private) +{ + struct iio_dev *indio_dev = private; + struct tiadc_device *adc_dev = iio_priv(indio_dev); + int i, k, fifo1count, read; + u16 *data = adc_dev->data; + + fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT); + for (k = 0; k < fifo1count; k = k + i) { + for (i = 0; i < (indio_dev->scan_bytes)/2; i++) { + read = tiadc_readl(adc_dev, REG_FIFO1); + data[i] = read & FIFOREAD_DATA_MASK; + } + iio_push_to_buffers(indio_dev, (u8 *) data); + } + + tiadc_writel(adc_dev, REG_IRQSTATUS, IRQENB_FIFO1THRES); + tiadc_writel(adc_dev, REG_IRQENABLE, IRQENB_FIFO1THRES); + + return IRQ_HANDLED; +} + +static int tiadc_buffer_preenable(struct iio_dev *indio_dev) +{ + struct tiadc_device *adc_dev = iio_priv(indio_dev); + int i, fifo1count, read; + + tiadc_writel(adc_dev, REG_IRQCLR, (IRQENB_FIFO1THRES | + IRQENB_FIFO1OVRRUN | + IRQENB_FIFO1UNDRFLW)); + + /* Flush FIFO. Needed in corner cases in simultaneous tsc/adc use */ + fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT); + for (i = 0; i < fifo1count; i++) + read = tiadc_readl(adc_dev, REG_FIFO1); + + return iio_sw_buffer_preenable(indio_dev); +} + +static int tiadc_buffer_postenable(struct iio_dev *indio_dev) +{ + struct tiadc_device *adc_dev = iio_priv(indio_dev); + struct iio_buffer *buffer = indio_dev->buffer; + unsigned int enb = 0; + u8 bit; + + tiadc_step_config(indio_dev); + for_each_set_bit(bit, buffer->scan_mask, adc_dev->channels) + enb |= (get_adc_step_bit(adc_dev, bit) << 1); + adc_dev->buffer_en_ch_steps = enb; + + am335x_tsc_se_set(adc_dev->mfd_tscadc, enb); + + tiadc_writel(adc_dev, REG_IRQSTATUS, IRQENB_FIFO1THRES + | IRQENB_FIFO1OVRRUN | IRQENB_FIFO1UNDRFLW); + tiadc_writel(adc_dev, REG_IRQENABLE, IRQENB_FIFO1THRES + | IRQENB_FIFO1OVRRUN); + + return 0; +} + +static int tiadc_buffer_predisable(struct iio_dev *indio_dev) +{ + struct tiadc_device *adc_dev = iio_priv(indio_dev); + int fifo1count, i, read; + + tiadc_writel(adc_dev, REG_IRQCLR, (IRQENB_FIFO1THRES | + IRQENB_FIFO1OVRRUN | IRQENB_FIFO1UNDRFLW)); + am335x_tsc_se_clr(adc_dev->mfd_tscadc, adc_dev->buffer_en_ch_steps); + + /* Flush FIFO of leftover data in the time it takes to disable adc */ + fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT); + for (i = 0; i < fifo1count; i++) + read = tiadc_readl(adc_dev, REG_FIFO1); + + return 0; +} + +static int tiadc_buffer_postdisable(struct iio_dev *indio_dev) +{ + tiadc_step_config(indio_dev); + return 0; } +static const struct iio_buffer_setup_ops tiadc_buffer_setup_ops = { + .preenable = &tiadc_buffer_preenable, + .postenable = &tiadc_buffer_postenable, + .predisable = &tiadc_buffer_predisable, + .postdisable = &tiadc_buffer_postdisable, +}; + +static int tiadc_iio_buffered_hardware_setup(struct iio_dev *indio_dev, + irqreturn_t (*pollfunc_bh)(int irq, void *p), + irqreturn_t (*pollfunc_th)(int irq, void *p), + int irq, + unsigned long flags, + const struct iio_buffer_setup_ops *setup_ops) +{ + int ret; + + indio_dev->buffer = iio_kfifo_allocate(indio_dev); + if (!indio_dev->buffer) + return -ENOMEM; + + ret = request_threaded_irq(irq, pollfunc_th, pollfunc_bh, + flags, indio_dev->name, indio_dev); + if (ret) + goto error_kfifo_free; + + indio_dev->setup_ops = setup_ops; + indio_dev->modes |= INDIO_BUFFER_HARDWARE; + + ret = iio_buffer_register(indio_dev, + indio_dev->channels, + indio_dev->num_channels); + if (ret) + goto error_free_irq; + + return 0; + +error_free_irq: + free_irq(irq, indio_dev); +error_kfifo_free: + iio_kfifo_free(indio_dev->buffer); + return ret; +} + +static void tiadc_iio_buffered_hardware_remove(struct iio_dev *indio_dev) +{ + struct tiadc_device *adc_dev = iio_priv(indio_dev); + + free_irq(adc_dev->mfd_tscadc->irq, indio_dev); + iio_kfifo_free(indio_dev->buffer); + iio_buffer_unregister(indio_dev); +} + + static const char * const chan_name_ain[] = { "AIN0", "AIN1", @@ -120,9 +300,10 @@ static int tiadc_channel_init(struct iio_dev *indio_dev, int channels) chan->channel = adc_dev->channel_line[i]; chan->info_mask_separate = BIT(IIO_CHAN_INFO_RAW); chan->datasheet_name = chan_name_ain[chan->channel]; + chan->scan_index = i; chan->scan_type.sign = 'u'; chan->scan_type.realbits = 12; - chan->scan_type.storagebits = 32; + chan->scan_type.storagebits = 16; } indio_dev->channels = chan_array; @@ -142,11 +323,14 @@ static int tiadc_read_raw(struct iio_dev *indio_dev, struct tiadc_device *adc_dev = iio_priv(indio_dev); int i, map_val; unsigned int fifo1count, read, stepid; - u32 step = UINT_MAX; bool found = false; u32 step_en; unsigned long timeout = jiffies + usecs_to_jiffies (IDLE_TIMEOUT * adc_dev->channels); + + if (iio_buffer_enabled(indio_dev)) + return -EBUSY; + step_en = get_adc_step_mask(adc_dev); am335x_tsc_se_set(adc_dev->mfd_tscadc, step_en); @@ -168,15 +352,6 @@ static int tiadc_read_raw(struct iio_dev *indio_dev, * Hence we need to flush out this data. */ - for (i = 0; i < ARRAY_SIZE(adc_dev->channel_step); i++) { - if (chan->channel == adc_dev->channel_line[i]) { - step = adc_dev->channel_step[i]; - break; - } - } - if (WARN_ON_ONCE(step == UINT_MAX)) - return -EINVAL; - fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT); for (i = 0; i < fifo1count; i++) { read = tiadc_readl(adc_dev, REG_FIFO1); @@ -186,7 +361,7 @@ static int tiadc_read_raw(struct iio_dev *indio_dev, if (stepid == map_val) { read = read & FIFOREAD_DATA_MASK; found = true; - *val = read; + *val = (u16) read; } } @@ -237,20 +412,33 @@ static int tiadc_probe(struct platform_device *pdev) indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &tiadc_info; - tiadc_step_config(adc_dev); + tiadc_step_config(indio_dev); + tiadc_writel(adc_dev, REG_FIFO1THR, FIFO1_THRESHOLD); err = tiadc_channel_init(indio_dev, adc_dev->channels); if (err < 0) return err; - err = iio_device_register(indio_dev); + err = tiadc_iio_buffered_hardware_setup(indio_dev, + &tiadc_worker_h, + &tiadc_irq_h, + adc_dev->mfd_tscadc->irq, + IRQF_SHARED, + &tiadc_buffer_setup_ops); + if (err) goto err_free_channels; + err = iio_device_register(indio_dev); + if (err) + goto err_buffer_unregister; + platform_set_drvdata(pdev, indio_dev); return 0; +err_buffer_unregister: + tiadc_iio_buffered_hardware_remove(indio_dev); err_free_channels: tiadc_channels_remove(indio_dev); return err; @@ -263,6 +451,7 @@ static int tiadc_remove(struct platform_device *pdev) u32 step_en; iio_device_unregister(indio_dev); + tiadc_iio_buffered_hardware_remove(indio_dev); tiadc_channels_remove(indio_dev); step_en = get_adc_step_mask(adc_dev); @@ -301,7 +490,7 @@ static int tiadc_resume(struct device *dev) restore &= ~(CNTRLREG_POWERDOWN); tiadc_writel(adc_dev, REG_CTRL, restore); - tiadc_step_config(adc_dev); + tiadc_step_config(indio_dev); return 0; } diff --git a/drivers/iio/buffer_cb.c b/drivers/iio/buffer_cb.c index 9d19ba7..578f719 100644 --- a/drivers/iio/buffer_cb.c +++ b/drivers/iio/buffer_cb.c @@ -7,12 +7,12 @@ struct iio_cb_buffer { struct iio_buffer buffer; - int (*cb)(u8 *data, void *private); + int (*cb)(const void *data, void *private); void *private; struct iio_channel *channels; }; -static int iio_buffer_cb_store_to(struct iio_buffer *buffer, u8 *data) +static int iio_buffer_cb_store_to(struct iio_buffer *buffer, const void *data) { struct iio_cb_buffer *cb_buff = container_of(buffer, struct iio_cb_buffer, @@ -21,12 +21,12 @@ static int iio_buffer_cb_store_to(struct iio_buffer *buffer, u8 *data) return cb_buff->cb(data, cb_buff->private); } -static struct iio_buffer_access_funcs iio_cb_access = { +static const struct iio_buffer_access_funcs iio_cb_access = { .store_to = &iio_buffer_cb_store_to, }; struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev, - int (*cb)(u8 *data, + int (*cb)(const void *data, void *private), void *private) { diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c index 71a2c5f..1665c8e 100644 --- a/drivers/iio/common/st_sensors/st_sensors_buffer.c +++ b/drivers/iio/common/st_sensors/st_sensors_buffer.c @@ -113,11 +113,8 @@ irqreturn_t st_sensors_trigger_handler(int irq, void *p) if (len < 0) goto st_sensors_get_buffer_element_error; - if (indio_dev->scan_timestamp) - *(s64 *)((u8 *)sdata->buffer_data + - ALIGN(len, sizeof(s64))) = pf->timestamp; - - iio_push_to_buffers(indio_dev, sdata->buffer_data); + iio_push_to_buffers_with_timestamp(indio_dev, sdata->buffer_data, + pf->timestamp); st_sensors_get_buffer_element_error: iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c index 965ee22..7ba1ef2 100644 --- a/drivers/iio/common/st_sensors/st_sensors_core.c +++ b/drivers/iio/common/st_sensors/st_sensors_core.c @@ -198,21 +198,17 @@ int st_sensors_set_axis_enable(struct iio_dev *indio_dev, u8 axis_enable) } EXPORT_SYMBOL(st_sensors_set_axis_enable); -int st_sensors_init_sensor(struct iio_dev *indio_dev, - struct st_sensors_platform_data *pdata) +static int st_sensors_set_drdy_int_pin(struct iio_dev *indio_dev, + struct st_sensors_platform_data *pdata) { - int err; struct st_sensor_data *sdata = iio_priv(indio_dev); - mutex_init(&sdata->tb.buf_lock); - switch (pdata->drdy_int_pin) { case 1: if (sdata->sensor->drdy_irq.mask_int1 == 0) { dev_err(&indio_dev->dev, "DRDY on INT1 not available.\n"); - err = -EINVAL; - goto init_error; + return -EINVAL; } sdata->drdy_int_pin = 1; break; @@ -220,39 +216,53 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev, if (sdata->sensor->drdy_irq.mask_int2 == 0) { dev_err(&indio_dev->dev, "DRDY on INT2 not available.\n"); - err = -EINVAL; - goto init_error; + return -EINVAL; } sdata->drdy_int_pin = 2; break; default: dev_err(&indio_dev->dev, "DRDY on pdata not valid.\n"); - err = -EINVAL; - goto init_error; + return -EINVAL; } + return 0; +} + +int st_sensors_init_sensor(struct iio_dev *indio_dev, + struct st_sensors_platform_data *pdata) +{ + struct st_sensor_data *sdata = iio_priv(indio_dev); + int err = 0; + + mutex_init(&sdata->tb.buf_lock); + + if (pdata) + err = st_sensors_set_drdy_int_pin(indio_dev, pdata); + err = st_sensors_set_enable(indio_dev, false); if (err < 0) - goto init_error; + return err; - err = st_sensors_set_fullscale(indio_dev, - sdata->current_fullscale->num); - if (err < 0) - goto init_error; + if (sdata->current_fullscale) { + err = st_sensors_set_fullscale(indio_dev, + sdata->current_fullscale->num); + if (err < 0) + return err; + } else + dev_info(&indio_dev->dev, "Full-scale not possible\n"); err = st_sensors_set_odr(indio_dev, sdata->odr); if (err < 0) - goto init_error; + return err; /* set BDU */ err = st_sensors_write_data_with_mask(indio_dev, sdata->sensor->bdu.addr, sdata->sensor->bdu.mask, true); if (err < 0) - goto init_error; + return err; err = st_sensors_set_axis_enable(indio_dev, ST_SENSORS_ENABLE_ALL_AXIS); -init_error: return err; } EXPORT_SYMBOL(st_sensors_init_sensor); @@ -263,6 +273,9 @@ int st_sensors_set_dataready_irq(struct iio_dev *indio_dev, bool enable) u8 drdy_mask; struct st_sensor_data *sdata = iio_priv(indio_dev); + if (!sdata->sensor->drdy_irq.addr) + return 0; + /* Enable/Disable the interrupt generator 1. */ if (sdata->sensor->drdy_irq.ig1.en_addr > 0) { err = st_sensors_write_data_with_mask(indio_dev, @@ -318,10 +331,8 @@ static int st_sensors_read_axis_data(struct iio_dev *indio_dev, unsigned int byte_for_channel = ch->scan_type.storagebits >> 3; outdata = kmalloc(byte_for_channel, GFP_KERNEL); - if (!outdata) { - err = -EINVAL; - goto st_sensors_read_axis_data_error; - } + if (!outdata) + return -ENOMEM; err = sdata->tf->read_multiple_byte(&sdata->tb, sdata->dev, ch->address, byte_for_channel, @@ -336,7 +347,7 @@ static int st_sensors_read_axis_data(struct iio_dev *indio_dev, st_sensors_free_memory: kfree(outdata); -st_sensors_read_axis_data_error: + return err; } @@ -349,28 +360,25 @@ int st_sensors_read_info_raw(struct iio_dev *indio_dev, mutex_lock(&indio_dev->mlock); if (indio_dev->currentmode == INDIO_BUFFER_TRIGGERED) { err = -EBUSY; - goto read_error; + goto out; } else { err = st_sensors_set_enable(indio_dev, true); if (err < 0) - goto read_error; + goto out; msleep((sdata->sensor->bootime * 1000) / sdata->odr); err = st_sensors_read_axis_data(indio_dev, ch, val); if (err < 0) - goto read_error; + goto out; *val = *val >> ch->scan_type.shift; err = st_sensors_set_enable(indio_dev, false); } +out: mutex_unlock(&indio_dev->mlock); return err; - -read_error: - mutex_unlock(&indio_dev->mlock); - return err; } EXPORT_SYMBOL(st_sensors_read_info_raw); diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c index a3a52be..b18e8c4 100644 --- a/drivers/iio/dac/ad5064.c +++ b/drivers/iio/dac/ad5064.c @@ -285,8 +285,9 @@ static const struct iio_chan_spec_ext_info ad5064_ext_info[] = { .name = "powerdown", .read = ad5064_read_dac_powerdown, .write = ad5064_write_dac_powerdown, + .shared = IIO_SEPARATE, }, - IIO_ENUM("powerdown_mode", false, &ad5064_powerdown_mode_enum), + IIO_ENUM("powerdown_mode", IIO_SEPARATE, &ad5064_powerdown_mode_enum), IIO_ENUM_AVAILABLE("powerdown_mode", &ad5064_powerdown_mode_enum), { }, }; diff --git a/drivers/iio/dac/ad5380.c b/drivers/iio/dac/ad5380.c index 1c44ae3..4c791e6 100644 --- a/drivers/iio/dac/ad5380.c +++ b/drivers/iio/dac/ad5380.c @@ -247,8 +247,10 @@ static struct iio_chan_spec_ext_info ad5380_ext_info[] = { .name = "powerdown", .read = ad5380_read_dac_powerdown, .write = ad5380_write_dac_powerdown, + .shared = IIO_SEPARATE, }, - IIO_ENUM("powerdown_mode", true, &ad5380_powerdown_mode_enum), + IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE, + &ad5380_powerdown_mode_enum), IIO_ENUM_AVAILABLE("powerdown_mode", &ad5380_powerdown_mode_enum), { }, }; diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c index 96e9ed4..6dcb6d9 100644 --- a/drivers/iio/dac/ad5446.c +++ b/drivers/iio/dac/ad5446.c @@ -132,8 +132,9 @@ static const struct iio_chan_spec_ext_info ad5446_ext_info_powerdown[] = { .name = "powerdown", .read = ad5446_read_dac_powerdown, .write = ad5446_write_dac_powerdown, + .shared = IIO_SEPARATE, }, - IIO_ENUM("powerdown_mode", false, &ad5446_powerdown_mode_enum), + IIO_ENUM("powerdown_mode", IIO_SEPARATE, &ad5446_powerdown_mode_enum), IIO_ENUM_AVAILABLE("powerdown_mode", &ad5446_powerdown_mode_enum), { }, }; diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c index caffb16..31f4ff2 100644 --- a/drivers/iio/dac/ad5504.c +++ b/drivers/iio/dac/ad5504.c @@ -248,8 +248,10 @@ static const struct iio_chan_spec_ext_info ad5504_ext_info[] = { .name = "powerdown", .read = ad5504_read_dac_powerdown, .write = ad5504_write_dac_powerdown, + .shared = IIO_SEPARATE, }, - IIO_ENUM("powerdown_mode", true, &ad5504_powerdown_mode_enum), + IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE, + &ad5504_powerdown_mode_enum), IIO_ENUM_AVAILABLE("powerdown_mode", &ad5504_powerdown_mode_enum), { }, }; diff --git a/drivers/iio/dac/ad5624r_spi.c b/drivers/iio/dac/ad5624r_spi.c index 714af75..dbb1289 100644 --- a/drivers/iio/dac/ad5624r_spi.c +++ b/drivers/iio/dac/ad5624r_spi.c @@ -163,8 +163,10 @@ static const struct iio_chan_spec_ext_info ad5624r_ext_info[] = { .name = "powerdown", .read = ad5624r_read_dac_powerdown, .write = ad5624r_write_dac_powerdown, + .shared = IIO_SEPARATE, }, - IIO_ENUM("powerdown_mode", true, &ad5624r_powerdown_mode_enum), + IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE, + &ad5624r_powerdown_mode_enum), IIO_ENUM_AVAILABLE("powerdown_mode", &ad5624r_powerdown_mode_enum), { }, }; diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c index 57825ea..f472b48 100644 --- a/drivers/iio/dac/ad5686.c +++ b/drivers/iio/dac/ad5686.c @@ -213,7 +213,6 @@ static int ad5686_read_raw(struct iio_dev *indio_dev, return ret; *val = ret; return IIO_VAL_INT; - break; case IIO_CHAN_INFO_SCALE: scale_uv = (st->vref_mv * 100000) >> (chan->scan_type.realbits); @@ -265,8 +264,9 @@ static const struct iio_chan_spec_ext_info ad5686_ext_info[] = { .name = "powerdown", .read = ad5686_read_dac_powerdown, .write = ad5686_write_dac_powerdown, + .shared = IIO_SEPARATE, }, - IIO_ENUM("powerdown_mode", false, &ad5686_powerdown_mode_enum), + IIO_ENUM("powerdown_mode", IIO_SEPARATE, &ad5686_powerdown_mode_enum), IIO_ENUM_AVAILABLE("powerdown_mode", &ad5686_powerdown_mode_enum), { }, }; diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c index 36a4361..f305a0c 100644 --- a/drivers/iio/dac/ad5755.c +++ b/drivers/iio/dac/ad5755.c @@ -386,6 +386,7 @@ static const struct iio_chan_spec_ext_info ad5755_ext_info[] = { .name = "powerdown", .read = ad5755_read_powerdown, .write = ad5755_write_powerdown, + .shared = IIO_SEPARATE, }, { }, }; diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c index ce74589..3cee89b 100644 --- a/drivers/iio/dac/ad5791.c +++ b/drivers/iio/dac/ad5791.c @@ -287,11 +287,12 @@ static int ad5791_read_raw(struct iio_dev *indio_dev, static const struct iio_chan_spec_ext_info ad5791_ext_info[] = { { .name = "powerdown", - .shared = true, + .shared = IIO_SHARED_BY_TYPE, .read = ad5791_read_dac_powerdown, .write = ad5791_write_dac_powerdown, }, - IIO_ENUM("powerdown_mode", true, &ad5791_powerdown_mode_enum), + IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE, + &ad5791_powerdown_mode_enum), IIO_ENUM_AVAILABLE("powerdown_mode", &ad5791_powerdown_mode_enum), { }, }; diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c index ed2d276..d0505fd 100644 --- a/drivers/iio/dac/ad7303.c +++ b/drivers/iio/dac/ad7303.c @@ -169,6 +169,7 @@ static const struct iio_chan_spec_ext_info ad7303_ext_info[] = { .name = "powerdown", .read = ad7303_read_dac_powerdown, .write = ad7303_write_dac_powerdown, + .shared = IIO_SEPARATE, }, { }, }; diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c index 1f4a48e..6711a33 100644 --- a/drivers/iio/dac/mcp4725.c +++ b/drivers/iio/dac/mcp4725.c @@ -195,8 +195,9 @@ static const struct iio_chan_spec_ext_info mcp4725_ext_info[] = { .name = "powerdown", .read = mcp4725_read_powerdown, .write = mcp4725_write_powerdown, + .shared = IIO_SEPARATE, }, - IIO_ENUM("powerdown_mode", false, &mcp4725_powerdown_mode_enum), + IIO_ENUM("powerdown_mode", IIO_SEPARATE, &mcp4725_powerdown_mode_enum), IIO_ENUM_AVAILABLE("powerdown_mode", &mcp4725_powerdown_mode_enum), { }, }; diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c index a7b30be..85152547 100644 --- a/drivers/iio/frequency/adf4350.c +++ b/drivers/iio/frequency/adf4350.c @@ -351,6 +351,7 @@ static ssize_t adf4350_read(struct iio_dev *indio_dev, .read = adf4350_read, \ .write = adf4350_write, \ .private = _ident, \ + .shared = IIO_SEPARATE, \ } static const struct iio_chan_spec_ext_info adf4350_ext_info[] = { diff --git a/drivers/iio/gyro/adis16130.c b/drivers/iio/gyro/adis16130.c index ac66fc1..9155cf6 100644 --- a/drivers/iio/gyro/adis16130.c +++ b/drivers/iio/gyro/adis16130.c @@ -103,7 +103,6 @@ static int adis16130_read_raw(struct iio_dev *indio_dev, default: return -EINVAL; } - break; case IIO_CHAN_INFO_OFFSET: switch (chan->type) { case IIO_ANGL_VEL: @@ -115,7 +114,6 @@ static int adis16130_read_raw(struct iio_dev *indio_dev, default: return -EINVAL; } - break; } return -EINVAL; diff --git a/drivers/iio/gyro/adis16260.c b/drivers/iio/gyro/adis16260.c index 0654116..22b6fb8 100644 --- a/drivers/iio/gyro/adis16260.c +++ b/drivers/iio/gyro/adis16260.c @@ -239,7 +239,6 @@ static int adis16260_read_raw(struct iio_dev *indio_dev, default: return -EINVAL; } - break; case IIO_CHAN_INFO_OFFSET: *val = 250000 / 1453; /* 25 C = 0x00 */ return IIO_VAL_INT; diff --git a/drivers/iio/gyro/adxrs450.c b/drivers/iio/gyro/adxrs450.c index 6dab299..c1f40ef 100644 --- a/drivers/iio/gyro/adxrs450.c +++ b/drivers/iio/gyro/adxrs450.c @@ -354,7 +354,6 @@ static int adxrs450_read_raw(struct iio_dev *indio_dev, default: return -EINVAL; } - break; case IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW: ret = adxrs450_spi_read_reg_16(indio_dev, ADXRS450_QUAD1, &t); if (ret) diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c index c688d97..ea01c6bc 100644 --- a/drivers/iio/gyro/hid-sensor-gyro-3d.c +++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c @@ -182,10 +182,11 @@ static const struct iio_info gyro_3d_info = { }; /* Function to push data to buffer */ -static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len) +static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data, + int len) { dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n"); - iio_push_to_buffers(indio_dev, (u8 *)data); + iio_push_to_buffers(indio_dev, data); } /* Callback handler to send event after all samples are received and captured */ @@ -200,7 +201,7 @@ static int gyro_3d_proc_event(struct hid_sensor_hub_device *hsdev, gyro_state->common_attributes.data_ready); if (gyro_state->common_attributes.data_ready) hid_sensor_push_data(indio_dev, - (u8 *)gyro_state->gyro_val, + gyro_state->gyro_val, sizeof(gyro_state->gyro_val)); return 0; diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c index 6c43af9..e3b3c50 100644 --- a/drivers/iio/gyro/itg3200_buffer.c +++ b/drivers/iio/gyro/itg3200_buffer.c @@ -55,11 +55,8 @@ static irqreturn_t itg3200_trigger_handler(int irq, void *p) if (ret < 0) goto error_ret; - if (indio_dev->scan_timestamp) - memcpy(buf + indio_dev->scan_bytes - sizeof(s64), - &pf->timestamp, sizeof(pf->timestamp)); + iio_push_to_buffers_with_timestamp(indio_dev, buf, pf->timestamp); - iio_push_to_buffers(indio_dev, (u8 *)buf); iio_trigger_notify_done(indio_dev->trig); error_ret: diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c index e13c2b0..d53d91a 100644 --- a/drivers/iio/gyro/st_gyro_core.c +++ b/drivers/iio/gyro/st_gyro_core.c @@ -305,8 +305,9 @@ static const struct iio_trigger_ops st_gyro_trigger_ops = { int st_gyro_common_probe(struct iio_dev *indio_dev, struct st_sensors_platform_data *pdata) { - int err; struct st_sensor_data *gdata = iio_priv(indio_dev); + int irq = gdata->get_irq_data_ready(indio_dev); + int err; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &gyro_info; @@ -314,7 +315,7 @@ int st_gyro_common_probe(struct iio_dev *indio_dev, err = st_sensors_check_device_support(indio_dev, ARRAY_SIZE(st_gyro_sensors), st_gyro_sensors); if (err < 0) - goto st_gyro_common_probe_error; + return err; gdata->num_data_channels = ST_GYRO_NUMBER_DATA_CHANNELS; gdata->multiread_bit = gdata->sensor->multi_read_bit; @@ -327,13 +328,13 @@ int st_gyro_common_probe(struct iio_dev *indio_dev, err = st_sensors_init_sensor(indio_dev, pdata); if (err < 0) - goto st_gyro_common_probe_error; + return err; - if (gdata->get_irq_data_ready(indio_dev) > 0) { - err = st_gyro_allocate_ring(indio_dev); - if (err < 0) - goto st_gyro_common_probe_error; + err = st_gyro_allocate_ring(indio_dev); + if (err < 0) + return err; + if (irq > 0) { err = st_sensors_allocate_trigger(indio_dev, ST_GYRO_TRIGGER_OPS); if (err < 0) @@ -344,15 +345,14 @@ int st_gyro_common_probe(struct iio_dev *indio_dev, if (err) goto st_gyro_device_register_error; - return err; + return 0; st_gyro_device_register_error: - if (gdata->get_irq_data_ready(indio_dev) > 0) + if (irq > 0) st_sensors_deallocate_trigger(indio_dev); st_gyro_probe_trigger_error: - if (gdata->get_irq_data_ready(indio_dev) > 0) - st_gyro_deallocate_ring(indio_dev); -st_gyro_common_probe_error: + st_gyro_deallocate_ring(indio_dev); + return err; } EXPORT_SYMBOL(st_gyro_common_probe); @@ -362,10 +362,10 @@ void st_gyro_common_remove(struct iio_dev *indio_dev) struct st_sensor_data *gdata = iio_priv(indio_dev); iio_device_unregister(indio_dev); - if (gdata->get_irq_data_ready(indio_dev) > 0) { + if (gdata->get_irq_data_ready(indio_dev) > 0) st_sensors_deallocate_trigger(indio_dev); - st_gyro_deallocate_ring(indio_dev); - } + + st_gyro_deallocate_ring(indio_dev); } EXPORT_SYMBOL(st_gyro_common_remove); diff --git a/drivers/iio/iio_core.h b/drivers/iio/iio_core.h index 05c1b74..6be5ab8 100644 --- a/drivers/iio/iio_core.h +++ b/drivers/iio/iio_core.h @@ -30,7 +30,7 @@ int __iio_add_chan_devattr(const char *postfix, const char *buf, size_t len), u64 mask, - bool generic, + enum iio_shared_by shared_by, struct device *dev, struct list_head *attr_list); diff --git a/drivers/iio/imu/adis16400_buffer.c b/drivers/iio/imu/adis16400_buffer.c index 054c01d..f2cf829 100644 --- a/drivers/iio/imu/adis16400_buffer.c +++ b/drivers/iio/imu/adis16400_buffer.c @@ -82,13 +82,8 @@ irqreturn_t adis16400_trigger_handler(int irq, void *p) spi_setup(st->adis.spi); } - /* Guaranteed to be aligned with 8 byte boundary */ - if (indio_dev->scan_timestamp) { - void *b = adis->buffer + indio_dev->scan_bytes - sizeof(s64); - *(s64 *)b = pf->timestamp; - } - - iio_push_to_buffers(indio_dev, adis->buffer); + iio_push_to_buffers_with_timestamp(indio_dev, adis->buffer, + pf->timestamp); iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/iio/imu/adis_buffer.c b/drivers/iio/imu/adis_buffer.c index 99d8e0b..cb32b59 100644 --- a/drivers/iio/imu/adis_buffer.c +++ b/drivers/iio/imu/adis_buffer.c @@ -102,13 +102,8 @@ static irqreturn_t adis_trigger_handler(int irq, void *p) mutex_unlock(&adis->txrx_lock); } - /* Guaranteed to be aligned with 8 byte boundary */ - if (indio_dev->scan_timestamp) { - void *b = adis->buffer + indio_dev->scan_bytes - sizeof(s64); - *(s64 *)b = pf->timestamp; - } - - iio_push_to_buffers(indio_dev, adis->buffer); + iio_push_to_buffers_with_timestamp(indio_dev, adis->buffer, + pf->timestamp); iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c index 7da0832..4295171 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c @@ -124,7 +124,6 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p) u8 data[INV_MPU6050_OUTPUT_DATA_SIZE]; u16 fifo_count; s64 timestamp; - u64 *tmp; mutex_lock(&indio_dev->mlock); if (!(st->chip_config.accl_fifo_enable | @@ -170,9 +169,8 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p) if (0 == result) timestamp = 0; - tmp = (u64 *)data; - tmp[DIV_ROUND_UP(bytes_per_datum, 8)] = timestamp; - result = iio_push_to_buffers(indio_dev, data); + result = iio_push_to_buffers_with_timestamp(indio_dev, data, + timestamp); if (result) goto flush_fifo; fifo_count -= bytes_per_datum; diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index e73033f..2361fbc 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -31,16 +31,9 @@ static const char * const iio_endian_prefix[] = { [IIO_LE] = "le", }; -static bool iio_buffer_is_active(struct iio_dev *indio_dev, - struct iio_buffer *buf) +static bool iio_buffer_is_active(struct iio_buffer *buf) { - struct list_head *p; - - list_for_each(p, &indio_dev->buffer_list) - if (p == &buf->buffer_list) - return true; - - return false; + return !list_empty(&buf->buffer_list); } /** @@ -79,6 +72,7 @@ unsigned int iio_buffer_poll(struct file *filp, void iio_buffer_init(struct iio_buffer *buffer) { INIT_LIST_HEAD(&buffer->demux_list); + INIT_LIST_HEAD(&buffer->buffer_list); init_waitqueue_head(&buffer->pollq); } EXPORT_SYMBOL(iio_buffer_init); @@ -146,7 +140,7 @@ static ssize_t iio_scan_el_store(struct device *dev, if (ret < 0) return ret; mutex_lock(&indio_dev->mlock); - if (iio_buffer_is_active(indio_dev, indio_dev->buffer)) { + if (iio_buffer_is_active(indio_dev->buffer)) { ret = -EBUSY; goto error_ret; } @@ -192,7 +186,7 @@ static ssize_t iio_scan_el_ts_store(struct device *dev, return ret; mutex_lock(&indio_dev->mlock); - if (iio_buffer_is_active(indio_dev, indio_dev->buffer)) { + if (iio_buffer_is_active(indio_dev->buffer)) { ret = -EBUSY; goto error_ret; } @@ -214,7 +208,7 @@ static int iio_buffer_add_channel_sysfs(struct iio_dev *indio_dev, &iio_show_scan_index, NULL, 0, - 0, + IIO_SEPARATE, &indio_dev->dev, &buffer->scan_el_dev_attr_list); if (ret) @@ -249,6 +243,8 @@ static int iio_buffer_add_channel_sysfs(struct iio_dev *indio_dev, 0, &indio_dev->dev, &buffer->scan_el_dev_attr_list); + if (ret) + goto error_ret; attrcount++; ret = attrcount; error_ret: @@ -396,7 +392,7 @@ ssize_t iio_buffer_write_length(struct device *dev, return len; mutex_lock(&indio_dev->mlock); - if (iio_buffer_is_active(indio_dev, indio_dev->buffer)) { + if (iio_buffer_is_active(indio_dev->buffer)) { ret = -EBUSY; } else { if (buffer->access->set_length) @@ -414,13 +410,11 @@ ssize_t iio_buffer_show_enable(struct device *dev, char *buf) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); - return sprintf(buf, "%d\n", - iio_buffer_is_active(indio_dev, - indio_dev->buffer)); + return sprintf(buf, "%d\n", iio_buffer_is_active(indio_dev->buffer)); } EXPORT_SYMBOL(iio_buffer_show_enable); -/* note NULL used as error indicator as it doesn't make sense. */ +/* Note NULL used as error indicator as it doesn't make sense. */ static const unsigned long *iio_scan_mask_match(const unsigned long *av_masks, unsigned int masklength, const unsigned long *mask) @@ -435,8 +429,8 @@ static const unsigned long *iio_scan_mask_match(const unsigned long *av_masks, return NULL; } -static int iio_compute_scan_bytes(struct iio_dev *indio_dev, const long *mask, - bool timestamp) +static int iio_compute_scan_bytes(struct iio_dev *indio_dev, + const unsigned long *mask, bool timestamp) { const struct iio_chan_spec *ch; unsigned bytes = 0; @@ -490,7 +484,7 @@ int iio_update_buffers(struct iio_dev *indio_dev, indio_dev->active_scan_mask = NULL; if (remove_buffer) - list_del(&remove_buffer->buffer_list); + list_del_init(&remove_buffer->buffer_list); if (insert_buffer) list_add(&insert_buffer->buffer_list, &indio_dev->buffer_list); @@ -502,7 +496,7 @@ int iio_update_buffers(struct iio_dev *indio_dev, return 0; } - /* What scan mask do we actually have ?*/ + /* What scan mask do we actually have? */ compound_mask = kcalloc(BITS_TO_LONGS(indio_dev->masklength), sizeof(long), GFP_KERNEL); if (compound_mask == NULL) { @@ -527,7 +521,7 @@ int iio_update_buffers(struct iio_dev *indio_dev, * Roll back. * Note can only occur when adding a buffer. */ - list_del(&insert_buffer->buffer_list); + list_del_init(&insert_buffer->buffer_list); indio_dev->active_scan_mask = old_mask; success = -EINVAL; } @@ -568,7 +562,7 @@ int iio_update_buffers(struct iio_dev *indio_dev, goto error_run_postdisable; } } - /* Definitely possible for devices to support both of these.*/ + /* Definitely possible for devices to support both of these. */ if (indio_dev->modes & INDIO_BUFFER_TRIGGERED) { if (!indio_dev->trig) { printk(KERN_INFO "Buffer not started: no trigger\n"); @@ -579,7 +573,7 @@ int iio_update_buffers(struct iio_dev *indio_dev, indio_dev->currentmode = INDIO_BUFFER_TRIGGERED; } else if (indio_dev->modes & INDIO_BUFFER_HARDWARE) { indio_dev->currentmode = INDIO_BUFFER_HARDWARE; - } else { /* should never be reached */ + } else { /* Should never be reached */ ret = -EINVAL; goto error_run_postdisable; } @@ -611,7 +605,7 @@ error_run_postdisable: error_remove_inserted: if (insert_buffer) - list_del(&insert_buffer->buffer_list); + list_del_init(&insert_buffer->buffer_list); indio_dev->active_scan_mask = old_mask; kfree(compound_mask); error_ret: @@ -628,7 +622,6 @@ ssize_t iio_buffer_store_enable(struct device *dev, int ret; bool requested_state; struct iio_dev *indio_dev = dev_to_iio_dev(dev); - struct iio_buffer *pbuf = indio_dev->buffer; bool inlist; ret = strtobool(buf, &requested_state); @@ -638,7 +631,7 @@ ssize_t iio_buffer_store_enable(struct device *dev, mutex_lock(&indio_dev->mlock); /* Find out if it is in the list */ - inlist = iio_buffer_is_active(indio_dev, pbuf); + inlist = iio_buffer_is_active(indio_dev->buffer); /* Already in desired state */ if (inlist == requested_state) goto done; @@ -703,6 +696,7 @@ static bool iio_validate_scan_mask(struct iio_dev *indio_dev, /** * iio_scan_mask_set() - set particular bit in the scan mask + * @indio_dev: the iio device * @buffer: the buffer whose scan mask we are interested in * @bit: the bit to be set. * @@ -723,7 +717,7 @@ int iio_scan_mask_set(struct iio_dev *indio_dev, if (trialmask == NULL) return -ENOMEM; if (!indio_dev->masklength) { - WARN_ON("trying to set scanmask prior to registering buffer\n"); + WARN_ON("Trying to set scanmask prior to registering buffer\n"); goto err_invalid_mask; } bitmap_copy(trialmask, buffer->scan_mask, indio_dev->masklength); @@ -778,8 +772,8 @@ struct iio_demux_table { struct list_head l; }; -static unsigned char *iio_demux(struct iio_buffer *buffer, - unsigned char *datain) +static const void *iio_demux(struct iio_buffer *buffer, + const void *datain) { struct iio_demux_table *t; @@ -792,9 +786,9 @@ static unsigned char *iio_demux(struct iio_buffer *buffer, return buffer->demux_bounce; } -static int iio_push_to_buffer(struct iio_buffer *buffer, unsigned char *data) +static int iio_push_to_buffer(struct iio_buffer *buffer, const void *data) { - unsigned char *dataout = iio_demux(buffer, data); + const void *dataout = iio_demux(buffer, data); return buffer->access->store_to(buffer, dataout); } @@ -809,7 +803,7 @@ static void iio_buffer_demux_free(struct iio_buffer *buffer) } -int iio_push_to_buffers(struct iio_dev *indio_dev, unsigned char *data) +int iio_push_to_buffers(struct iio_dev *indio_dev, const void *data) { int ret; struct iio_buffer *buf; diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 97f0297..24db185 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -101,6 +101,7 @@ static const char * const iio_chan_info_postfix[] = { [IIO_CHAN_INFO_PHASE] = "phase", [IIO_CHAN_INFO_HARDWAREGAIN] = "hardwaregain", [IIO_CHAN_INFO_HYSTERESIS] = "hysteresis", + [IIO_CHAN_INFO_INT_TIME] = "integration_time", }; const struct iio_chan_spec @@ -516,14 +517,15 @@ int __iio_device_attr_init(struct device_attribute *dev_attr, struct device_attribute *attr, const char *buf, size_t len), - bool generic) + enum iio_shared_by shared_by) { - int ret; - char *name_format, *full_postfix; + int ret = 0; + char *name_format = NULL; + char *full_postfix; sysfs_attr_init(&dev_attr->attr); /* Build up postfix of <extend_name>_<modifier>_postfix */ - if (chan->modified && !generic) { + if (chan->modified && (shared_by == IIO_SEPARATE)) { if (chan->extend_name) full_postfix = kasprintf(GFP_KERNEL, "%s_%s_%s", iio_modifier_names[chan @@ -544,53 +546,78 @@ int __iio_device_attr_init(struct device_attribute *dev_attr, chan->extend_name, postfix); } - if (full_postfix == NULL) { - ret = -ENOMEM; - goto error_ret; - } + if (full_postfix == NULL) + return -ENOMEM; if (chan->differential) { /* Differential can not have modifier */ - if (generic) + switch (shared_by) { + case IIO_SHARED_BY_ALL: + name_format = kasprintf(GFP_KERNEL, "%s", full_postfix); + break; + case IIO_SHARED_BY_DIR: + name_format = kasprintf(GFP_KERNEL, "%s_%s", + iio_direction[chan->output], + full_postfix); + break; + case IIO_SHARED_BY_TYPE: name_format = kasprintf(GFP_KERNEL, "%s_%s-%s_%s", iio_direction[chan->output], iio_chan_type_name_spec[chan->type], iio_chan_type_name_spec[chan->type], full_postfix); - else if (chan->indexed) + break; + case IIO_SEPARATE: + if (!chan->indexed) { + WARN_ON("Differential channels must be indexed\n"); + ret = -EINVAL; + goto error_free_full_postfix; + } name_format - = kasprintf(GFP_KERNEL, "%s_%s%d-%s%d_%s", + = kasprintf(GFP_KERNEL, + "%s_%s%d-%s%d_%s", iio_direction[chan->output], iio_chan_type_name_spec[chan->type], chan->channel, iio_chan_type_name_spec[chan->type], chan->channel2, full_postfix); - else { - WARN_ON("Differential channels must be indexed\n"); - ret = -EINVAL; - goto error_free_full_postfix; + break; } } else { /* Single ended */ - if (generic) - name_format - = kasprintf(GFP_KERNEL, "%s_%s_%s", - iio_direction[chan->output], - iio_chan_type_name_spec[chan->type], - full_postfix); - else if (chan->indexed) - name_format - = kasprintf(GFP_KERNEL, "%s_%s%d_%s", - iio_direction[chan->output], - iio_chan_type_name_spec[chan->type], - chan->channel, - full_postfix); - else + switch (shared_by) { + case IIO_SHARED_BY_ALL: + name_format = kasprintf(GFP_KERNEL, "%s", full_postfix); + break; + case IIO_SHARED_BY_DIR: + name_format = kasprintf(GFP_KERNEL, "%s_%s", + iio_direction[chan->output], + full_postfix); + break; + case IIO_SHARED_BY_TYPE: name_format = kasprintf(GFP_KERNEL, "%s_%s_%s", iio_direction[chan->output], iio_chan_type_name_spec[chan->type], full_postfix); + break; + + case IIO_SEPARATE: + if (chan->indexed) + name_format + = kasprintf(GFP_KERNEL, "%s_%s%d_%s", + iio_direction[chan->output], + iio_chan_type_name_spec[chan->type], + chan->channel, + full_postfix); + else + name_format + = kasprintf(GFP_KERNEL, "%s_%s_%s", + iio_direction[chan->output], + iio_chan_type_name_spec[chan->type], + full_postfix); + break; + } } if (name_format == NULL) { ret = -ENOMEM; @@ -614,16 +641,11 @@ int __iio_device_attr_init(struct device_attribute *dev_attr, dev_attr->attr.mode |= S_IWUSR; dev_attr->store = writefunc; } - kfree(name_format); - kfree(full_postfix); - - return 0; - error_free_name_format: kfree(name_format); error_free_full_postfix: kfree(full_postfix); -error_ret: + return ret; } @@ -642,7 +664,7 @@ int __iio_add_chan_devattr(const char *postfix, const char *buf, size_t len), u64 mask, - bool generic, + enum iio_shared_by shared_by, struct device *dev, struct list_head *attr_list) { @@ -656,7 +678,7 @@ int __iio_add_chan_devattr(const char *postfix, } ret = __iio_device_attr_init(&iio_attr->dev_attr, postfix, chan, - readfunc, writefunc, generic); + readfunc, writefunc, shared_by); if (ret) goto error_iio_dev_attr_free; iio_attr->c = chan; @@ -664,7 +686,7 @@ int __iio_add_chan_devattr(const char *postfix, list_for_each_entry(t, attr_list, l) if (strcmp(t->dev_attr.attr.name, iio_attr->dev_attr.attr.name) == 0) { - if (!generic) + if (shared_by == IIO_SEPARATE) dev_err(dev, "tried to double register : %s\n", t->dev_attr.attr.name); ret = -EBUSY; @@ -682,46 +704,68 @@ error_ret: return ret; } -static int iio_device_add_channel_sysfs(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan) +static int iio_device_add_info_mask_type(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + enum iio_shared_by shared_by, + const long *infomask) { - int ret, attrcount = 0; - int i; - const struct iio_chan_spec_ext_info *ext_info; + int i, ret, attrcount = 0; - if (chan->channel < 0) - return 0; - for_each_set_bit(i, &chan->info_mask_separate, sizeof(long)*8) { + for_each_set_bit(i, infomask, sizeof(infomask)*8) { ret = __iio_add_chan_devattr(iio_chan_info_postfix[i], chan, &iio_read_channel_info, &iio_write_channel_info, i, - 0, + shared_by, &indio_dev->dev, &indio_dev->channel_attr_list); - if (ret < 0) - goto error_ret; - attrcount++; - } - for_each_set_bit(i, &chan->info_mask_shared_by_type, sizeof(long)*8) { - ret = __iio_add_chan_devattr(iio_chan_info_postfix[i], - chan, - &iio_read_channel_info, - &iio_write_channel_info, - i, - 1, - &indio_dev->dev, - &indio_dev->channel_attr_list); - if (ret == -EBUSY) { - ret = 0; + if ((ret == -EBUSY) && (shared_by != IIO_SEPARATE)) continue; - } else if (ret < 0) { - goto error_ret; - } + else if (ret < 0) + return ret; attrcount++; } + return attrcount; +} + +static int iio_device_add_channel_sysfs(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan) +{ + int ret, attrcount = 0; + const struct iio_chan_spec_ext_info *ext_info; + + if (chan->channel < 0) + return 0; + ret = iio_device_add_info_mask_type(indio_dev, chan, + IIO_SEPARATE, + &chan->info_mask_separate); + if (ret < 0) + return ret; + attrcount += ret; + + ret = iio_device_add_info_mask_type(indio_dev, chan, + IIO_SHARED_BY_TYPE, + &chan->info_mask_shared_by_type); + if (ret < 0) + return ret; + attrcount += ret; + + ret = iio_device_add_info_mask_type(indio_dev, chan, + IIO_SHARED_BY_DIR, + &chan->info_mask_shared_by_dir); + if (ret < 0) + return ret; + attrcount += ret; + + ret = iio_device_add_info_mask_type(indio_dev, chan, + IIO_SHARED_BY_ALL, + &chan->info_mask_shared_by_all); + if (ret < 0) + return ret; + attrcount += ret; + if (chan->ext_info) { unsigned int i = 0; for (ext_info = chan->ext_info; ext_info->name; ext_info++) { @@ -740,15 +784,13 @@ static int iio_device_add_channel_sysfs(struct iio_dev *indio_dev, continue; if (ret) - goto error_ret; + return ret; attrcount++; } } - ret = attrcount; -error_ret: - return ret; + return attrcount; } static void iio_device_remove_and_free_read_attr(struct iio_dev *indio_dev, diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c index 10aa9ef..2390e3d 100644 --- a/drivers/iio/industrialio-event.c +++ b/drivers/iio/industrialio-event.c @@ -159,7 +159,7 @@ int iio_event_getfd(struct iio_dev *indio_dev) } spin_unlock_irq(&ev_int->wait.lock); fd = anon_inode_getfd("iio:event", - &iio_event_chrdev_fileops, ev_int, O_RDONLY); + &iio_event_chrdev_fileops, ev_int, O_RDONLY | O_CLOEXEC); if (fd < 0) { spin_lock_irq(&ev_int->wait.lock); __clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags); diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c index a923c78..538d461 100644 --- a/drivers/iio/kfifo_buf.c +++ b/drivers/iio/kfifo_buf.c @@ -7,6 +7,7 @@ #include <linux/mutex.h> #include <linux/iio/kfifo_buf.h> #include <linux/sched.h> +#include <linux/poll.h> struct iio_kfifo { struct iio_buffer buffer; @@ -94,7 +95,7 @@ static int iio_set_length_kfifo(struct iio_buffer *r, int length) } static int iio_store_to_kfifo(struct iio_buffer *r, - u8 *data) + const void *data) { int ret; struct iio_kfifo *kf = iio_to_kfifo(r); @@ -102,7 +103,7 @@ static int iio_store_to_kfifo(struct iio_buffer *r, if (ret != 1) return -EBUSY; r->stufftoread = true; - wake_up_interruptible(&r->pollq); + wake_up_interruptible_poll(&r->pollq, POLLIN | POLLRDNORM); return 0; } diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig index bf9fa0d..0a25ae6 100644 --- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -27,6 +27,18 @@ config APDS9300 To compile this driver as a module, choose M here: the module will be called apds9300. +config GP2AP020A00F + tristate "Sharp GP2AP020A00F Proximity/ALS sensor" + depends on I2C + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER + help + Say Y here if you have a Sharp GP2AP020A00F proximity/ALS combo-chip + hooked to an I2C bus. + + To compile this driver as a module, choose M here: the + module will be called gp2ap020a00f. + config HID_SENSOR_ALS depends on HID_SENSOR_HUB select IIO_BUFFER @@ -55,6 +67,16 @@ config SENSORS_LM3533 changes. The ALS-control output values can be set per zone for the three current output channels. +config TCS3472 + tristate "TAOS TCS3472 color light-to-digital converter" + depends on I2C + help + If you say yes here you get support for the TAOS TCS3472 + family of color light-to-digital converters with IR filter. + + This driver can also be built as a module. If so, the module + will be called tcs3472. + config SENSORS_TSL2563 tristate "TAOS TSL2560, TSL2561, TSL2562 and TSL2563 ambient light sensors" depends on I2C @@ -65,6 +87,16 @@ config SENSORS_TSL2563 This driver can also be built as a module. If so, the module will be called tsl2563. +config TSL4531 + tristate "TAOS TSL4531 ambient light sensors" + depends on I2C + help + Say Y here if you want to build a driver for the TAOS TSL4531 family + of ambient light sensors with direct lux output. + + To compile this driver as a module, choose M here: the + module will be called tsl4531. + config VCNL4000 tristate "VCNL4000 combined ALS and proximity sensor" depends on I2C diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile index 354ee9a..cef590f 100644 --- a/drivers/iio/light/Makefile +++ b/drivers/iio/light/Makefile @@ -5,7 +5,10 @@ # When adding new entries keep the list in alphabetical order obj-$(CONFIG_ADJD_S311) += adjd_s311.o obj-$(CONFIG_APDS9300) += apds9300.o +obj-$(CONFIG_GP2AP020A00F) += gp2ap020a00f.o obj-$(CONFIG_HID_SENSOR_ALS) += hid-sensor-als.o obj-$(CONFIG_SENSORS_LM3533) += lm3533-als.o obj-$(CONFIG_SENSORS_TSL2563) += tsl2563.o +obj-$(CONFIG_TCS3472) += tcs3472.o +obj-$(CONFIG_TSL4531) += tsl4531.o obj-$(CONFIG_VCNL4000) += vcnl4000.o diff --git a/drivers/iio/light/adjd_s311.c b/drivers/iio/light/adjd_s311.c index 23cff79..83d15c5 100644 --- a/drivers/iio/light/adjd_s311.c +++ b/drivers/iio/light/adjd_s311.c @@ -114,43 +114,6 @@ static int adjd_s311_read_data(struct iio_dev *indio_dev, u8 reg, int *val) return 0; } -static ssize_t adjd_s311_read_int_time(struct iio_dev *indio_dev, - uintptr_t private, const struct iio_chan_spec *chan, char *buf) -{ - struct adjd_s311_data *data = iio_priv(indio_dev); - s32 ret; - - ret = i2c_smbus_read_word_data(data->client, - ADJD_S311_INT_REG(chan->address)); - if (ret < 0) - return ret; - - return sprintf(buf, "%d\n", ret & ADJD_S311_INT_MASK); -} - -static ssize_t adjd_s311_write_int_time(struct iio_dev *indio_dev, - uintptr_t private, const struct iio_chan_spec *chan, const char *buf, - size_t len) -{ - struct adjd_s311_data *data = iio_priv(indio_dev); - unsigned long int_time; - int ret; - - ret = kstrtoul(buf, 10, &int_time); - if (ret) - return ret; - - if (int_time > ADJD_S311_INT_MASK) - return -EINVAL; - - ret = i2c_smbus_write_word_data(data->client, - ADJD_S311_INT_REG(chan->address), int_time); - if (ret < 0) - return ret; - - return len; -} - static irqreturn_t adjd_s311_trigger_handler(int irq, void *p) { struct iio_poll_func *pf = p; @@ -175,10 +138,7 @@ static irqreturn_t adjd_s311_trigger_handler(int irq, void *p) len += 2; } - if (indio_dev->scan_timestamp) - *(s64 *)((u8 *)data->buffer + ALIGN(len, sizeof(s64))) - = time_ns; - iio_push_to_buffers(indio_dev, (u8 *)data->buffer); + iio_push_to_buffers_with_timestamp(indio_dev, data->buffer, time_ns); done: iio_trigger_notify_done(indio_dev->trig); @@ -186,25 +146,16 @@ done: return IRQ_HANDLED; } -static const struct iio_chan_spec_ext_info adjd_s311_ext_info[] = { - { - .name = "integration_time", - .read = adjd_s311_read_int_time, - .write = adjd_s311_write_int_time, - }, - { } -}; - #define ADJD_S311_CHANNEL(_color, _scan_idx) { \ .type = IIO_INTENSITY, \ .modified = 1, \ .address = (IDX_##_color), \ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \ - BIT(IIO_CHAN_INFO_HARDWAREGAIN), \ + BIT(IIO_CHAN_INFO_HARDWAREGAIN) | \ + BIT(IIO_CHAN_INFO_INT_TIME), \ .channel2 = (IIO_MOD_LIGHT_##_color), \ .scan_index = (_scan_idx), \ .scan_type = IIO_ST('u', 10, 16, 0), \ - .ext_info = adjd_s311_ext_info, \ } static const struct iio_chan_spec adjd_s311_channels[] = { @@ -236,6 +187,18 @@ static int adjd_s311_read_raw(struct iio_dev *indio_dev, return ret; *val = ret & ADJD_S311_CAP_MASK; return IIO_VAL_INT; + case IIO_CHAN_INFO_INT_TIME: + ret = i2c_smbus_read_word_data(data->client, + ADJD_S311_INT_REG(chan->address)); + if (ret < 0) + return ret; + *val = 0; + /* + * not documented, based on measurement: + * 4095 LSBs correspond to roughly 4 ms + */ + *val2 = ret & ADJD_S311_INT_MASK; + return IIO_VAL_INT_PLUS_MICRO; } return -EINVAL; } @@ -245,16 +208,20 @@ static int adjd_s311_write_raw(struct iio_dev *indio_dev, int val, int val2, long mask) { struct adjd_s311_data *data = iio_priv(indio_dev); - int ret; switch (mask) { case IIO_CHAN_INFO_HARDWAREGAIN: if (val < 0 || val > ADJD_S311_CAP_MASK) return -EINVAL; - ret = i2c_smbus_write_byte_data(data->client, + return i2c_smbus_write_byte_data(data->client, ADJD_S311_CAP_REG(chan->address), val); - return ret; + case IIO_CHAN_INFO_INT_TIME: + if (val != 0 || val2 < 0 || val2 > ADJD_S311_INT_MASK) + return -EINVAL; + + return i2c_smbus_write_word_data(data->client, + ADJD_S311_INT_REG(chan->address), val2); } return -EINVAL; } diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c new file mode 100644 index 0000000..b1e4615 --- /dev/null +++ b/drivers/iio/light/gp2ap020a00f.c @@ -0,0 +1,1617 @@ +/* + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Author: Jacek Anaszewski <j.anaszewski@samsung.com> + * + * IIO features supported by the driver: + * + * Read-only raw channels: + * - illiminance_clear [lux] + * - illiminance_ir + * - proximity + * + * Triggered buffer: + * - illiminance_clear + * - illiminance_ir + * - proximity + * + * Events: + * - illuminance_clear (rising and falling) + * - proximity (rising and falling) + * - both falling and rising thresholds for the proximity events + * must be set to the values greater than 0. + * + * The driver supports triggered buffers for all the three + * channels as well as high and low threshold events for the + * illuminance_clear and proxmimity channels. Triggers + * can be enabled simultaneously with both illuminance_clear + * events. Proximity events cannot be enabled simultaneously + * with any triggers or illuminance events. Enabling/disabling + * one of the proximity events automatically enables/disables + * the other one. + * + * 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 <linux/debugfs.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/irq_work.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/regmap.h> +#include <linux/regulator/consumer.h> +#include <linux/slab.h> +#include <linux/iio/buffer.h> +#include <linux/iio/events.h> +#include <linux/iio/iio.h> +#include <linux/iio/sysfs.h> +#include <linux/iio/trigger.h> +#include <linux/iio/trigger_consumer.h> +#include <linux/iio/triggered_buffer.h> + +#define GP2A_I2C_NAME "gp2ap020a00f" + +/* Registers */ +#define GP2AP020A00F_OP_REG 0x00 /* Basic operations */ +#define GP2AP020A00F_ALS_REG 0x01 /* ALS related settings */ +#define GP2AP020A00F_PS_REG 0x02 /* PS related settings */ +#define GP2AP020A00F_LED_REG 0x03 /* LED reg */ +#define GP2AP020A00F_TL_L_REG 0x04 /* ALS: Threshold low LSB */ +#define GP2AP020A00F_TL_H_REG 0x05 /* ALS: Threshold low MSB */ +#define GP2AP020A00F_TH_L_REG 0x06 /* ALS: Threshold high LSB */ +#define GP2AP020A00F_TH_H_REG 0x07 /* ALS: Threshold high MSB */ +#define GP2AP020A00F_PL_L_REG 0x08 /* PS: Threshold low LSB */ +#define GP2AP020A00F_PL_H_REG 0x09 /* PS: Threshold low MSB */ +#define GP2AP020A00F_PH_L_REG 0x0a /* PS: Threshold high LSB */ +#define GP2AP020A00F_PH_H_REG 0x0b /* PS: Threshold high MSB */ +#define GP2AP020A00F_D0_L_REG 0x0c /* ALS result: Clear/Illuminance LSB */ +#define GP2AP020A00F_D0_H_REG 0x0d /* ALS result: Clear/Illuminance MSB */ +#define GP2AP020A00F_D1_L_REG 0x0e /* ALS result: IR LSB */ +#define GP2AP020A00F_D1_H_REG 0x0f /* ALS result: IR LSB */ +#define GP2AP020A00F_D2_L_REG 0x10 /* PS result LSB */ +#define GP2AP020A00F_D2_H_REG 0x11 /* PS result MSB */ +#define GP2AP020A00F_NUM_REGS 0x12 /* Number of registers */ + +/* OP_REG bits */ +#define GP2AP020A00F_OP3_MASK 0x80 /* Software shutdown */ +#define GP2AP020A00F_OP3_SHUTDOWN 0x00 +#define GP2AP020A00F_OP3_OPERATION 0x80 +#define GP2AP020A00F_OP2_MASK 0x40 /* Auto shutdown/Continuous mode */ +#define GP2AP020A00F_OP2_AUTO_SHUTDOWN 0x00 +#define GP2AP020A00F_OP2_CONT_OPERATION 0x40 +#define GP2AP020A00F_OP_MASK 0x30 /* Operating mode selection */ +#define GP2AP020A00F_OP_ALS_AND_PS 0x00 +#define GP2AP020A00F_OP_ALS 0x10 +#define GP2AP020A00F_OP_PS 0x20 +#define GP2AP020A00F_OP_DEBUG 0x30 +#define GP2AP020A00F_PROX_MASK 0x08 /* PS: detection/non-detection */ +#define GP2AP020A00F_PROX_NON_DETECT 0x00 +#define GP2AP020A00F_PROX_DETECT 0x08 +#define GP2AP020A00F_FLAG_P 0x04 /* PS: interrupt result */ +#define GP2AP020A00F_FLAG_A 0x02 /* ALS: interrupt result */ +#define GP2AP020A00F_TYPE_MASK 0x01 /* Output data type selection */ +#define GP2AP020A00F_TYPE_MANUAL_CALC 0x00 +#define GP2AP020A00F_TYPE_AUTO_CALC 0x01 + +/* ALS_REG bits */ +#define GP2AP020A00F_PRST_MASK 0xc0 /* Number of measurement cycles */ +#define GP2AP020A00F_PRST_ONCE 0x00 +#define GP2AP020A00F_PRST_4_CYCLES 0x40 +#define GP2AP020A00F_PRST_8_CYCLES 0x80 +#define GP2AP020A00F_PRST_16_CYCLES 0xc0 +#define GP2AP020A00F_RES_A_MASK 0x38 /* ALS: Resolution */ +#define GP2AP020A00F_RES_A_800ms 0x00 +#define GP2AP020A00F_RES_A_400ms 0x08 +#define GP2AP020A00F_RES_A_200ms 0x10 +#define GP2AP020A00F_RES_A_100ms 0x18 +#define GP2AP020A00F_RES_A_25ms 0x20 +#define GP2AP020A00F_RES_A_6_25ms 0x28 +#define GP2AP020A00F_RES_A_1_56ms 0x30 +#define GP2AP020A00F_RES_A_0_39ms 0x38 +#define GP2AP020A00F_RANGE_A_MASK 0x07 /* ALS: Max measurable range */ +#define GP2AP020A00F_RANGE_A_x1 0x00 +#define GP2AP020A00F_RANGE_A_x2 0x01 +#define GP2AP020A00F_RANGE_A_x4 0x02 +#define GP2AP020A00F_RANGE_A_x8 0x03 +#define GP2AP020A00F_RANGE_A_x16 0x04 +#define GP2AP020A00F_RANGE_A_x32 0x05 +#define GP2AP020A00F_RANGE_A_x64 0x06 +#define GP2AP020A00F_RANGE_A_x128 0x07 + +/* PS_REG bits */ +#define GP2AP020A00F_ALC_MASK 0x80 /* Auto light cancel */ +#define GP2AP020A00F_ALC_ON 0x80 +#define GP2AP020A00F_ALC_OFF 0x00 +#define GP2AP020A00F_INTTYPE_MASK 0x40 /* Interrupt type setting */ +#define GP2AP020A00F_INTTYPE_LEVEL 0x00 +#define GP2AP020A00F_INTTYPE_PULSE 0x40 +#define GP2AP020A00F_RES_P_MASK 0x38 /* PS: Resolution */ +#define GP2AP020A00F_RES_P_800ms_x2 0x00 +#define GP2AP020A00F_RES_P_400ms_x2 0x08 +#define GP2AP020A00F_RES_P_200ms_x2 0x10 +#define GP2AP020A00F_RES_P_100ms_x2 0x18 +#define GP2AP020A00F_RES_P_25ms_x2 0x20 +#define GP2AP020A00F_RES_P_6_25ms_x2 0x28 +#define GP2AP020A00F_RES_P_1_56ms_x2 0x30 +#define GP2AP020A00F_RES_P_0_39ms_x2 0x38 +#define GP2AP020A00F_RANGE_P_MASK 0x07 /* PS: Max measurable range */ +#define GP2AP020A00F_RANGE_P_x1 0x00 +#define GP2AP020A00F_RANGE_P_x2 0x01 +#define GP2AP020A00F_RANGE_P_x4 0x02 +#define GP2AP020A00F_RANGE_P_x8 0x03 +#define GP2AP020A00F_RANGE_P_x16 0x04 +#define GP2AP020A00F_RANGE_P_x32 0x05 +#define GP2AP020A00F_RANGE_P_x64 0x06 +#define GP2AP020A00F_RANGE_P_x128 0x07 + +/* LED reg bits */ +#define GP2AP020A00F_INTVAL_MASK 0xc0 /* Intermittent operating */ +#define GP2AP020A00F_INTVAL_0 0x00 +#define GP2AP020A00F_INTVAL_4 0x40 +#define GP2AP020A00F_INTVAL_8 0x80 +#define GP2AP020A00F_INTVAL_16 0xc0 +#define GP2AP020A00F_IS_MASK 0x30 /* ILED drive peak current */ +#define GP2AP020A00F_IS_13_8mA 0x00 +#define GP2AP020A00F_IS_27_5mA 0x10 +#define GP2AP020A00F_IS_55mA 0x20 +#define GP2AP020A00F_IS_110mA 0x30 +#define GP2AP020A00F_PIN_MASK 0x0c /* INT terminal setting */ +#define GP2AP020A00F_PIN_ALS_OR_PS 0x00 +#define GP2AP020A00F_PIN_ALS 0x04 +#define GP2AP020A00F_PIN_PS 0x08 +#define GP2AP020A00F_PIN_PS_DETECT 0x0c +#define GP2AP020A00F_FREQ_MASK 0x02 /* LED modulation frequency */ +#define GP2AP020A00F_FREQ_327_5kHz 0x00 +#define GP2AP020A00F_FREQ_81_8kHz 0x02 +#define GP2AP020A00F_RST 0x01 /* Software reset */ + +#define GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR 0 +#define GP2AP020A00F_SCAN_MODE_LIGHT_IR 1 +#define GP2AP020A00F_SCAN_MODE_PROXIMITY 2 +#define GP2AP020A00F_CHAN_TIMESTAMP 3 + +#define GP2AP020A00F_DATA_READY_TIMEOUT msecs_to_jiffies(1000) +#define GP2AP020A00F_DATA_REG(chan) (GP2AP020A00F_D0_L_REG + \ + (chan) * 2) +#define GP2AP020A00F_THRESH_REG(th_val_id) (GP2AP020A00F_TL_L_REG + \ + (th_val_id) * 2) +#define GP2AP020A00F_THRESH_VAL_ID(reg_addr) ((reg_addr - 4) / 2) + +#define GP2AP020A00F_SUBTRACT_MODE 0 +#define GP2AP020A00F_ADD_MODE 1 + +#define GP2AP020A00F_MAX_CHANNELS 3 + +enum gp2ap020a00f_opmode { + GP2AP020A00F_OPMODE_READ_RAW_CLEAR, + GP2AP020A00F_OPMODE_READ_RAW_IR, + GP2AP020A00F_OPMODE_READ_RAW_PROXIMITY, + GP2AP020A00F_OPMODE_ALS, + GP2AP020A00F_OPMODE_PS, + GP2AP020A00F_OPMODE_ALS_AND_PS, + GP2AP020A00F_OPMODE_PROX_DETECT, + GP2AP020A00F_OPMODE_SHUTDOWN, + GP2AP020A00F_NUM_OPMODES, +}; + +enum gp2ap020a00f_cmd { + GP2AP020A00F_CMD_READ_RAW_CLEAR, + GP2AP020A00F_CMD_READ_RAW_IR, + GP2AP020A00F_CMD_READ_RAW_PROXIMITY, + GP2AP020A00F_CMD_TRIGGER_CLEAR_EN, + GP2AP020A00F_CMD_TRIGGER_CLEAR_DIS, + GP2AP020A00F_CMD_TRIGGER_IR_EN, + GP2AP020A00F_CMD_TRIGGER_IR_DIS, + GP2AP020A00F_CMD_TRIGGER_PROX_EN, + GP2AP020A00F_CMD_TRIGGER_PROX_DIS, + GP2AP020A00F_CMD_ALS_HIGH_EV_EN, + GP2AP020A00F_CMD_ALS_HIGH_EV_DIS, + GP2AP020A00F_CMD_ALS_LOW_EV_EN, + GP2AP020A00F_CMD_ALS_LOW_EV_DIS, + GP2AP020A00F_CMD_PROX_HIGH_EV_EN, + GP2AP020A00F_CMD_PROX_HIGH_EV_DIS, + GP2AP020A00F_CMD_PROX_LOW_EV_EN, + GP2AP020A00F_CMD_PROX_LOW_EV_DIS, +}; + +enum gp2ap020a00f_flags { + GP2AP020A00F_FLAG_ALS_CLEAR_TRIGGER, + GP2AP020A00F_FLAG_ALS_IR_TRIGGER, + GP2AP020A00F_FLAG_PROX_TRIGGER, + GP2AP020A00F_FLAG_PROX_RISING_EV, + GP2AP020A00F_FLAG_PROX_FALLING_EV, + GP2AP020A00F_FLAG_ALS_RISING_EV, + GP2AP020A00F_FLAG_ALS_FALLING_EV, + GP2AP020A00F_FLAG_LUX_MODE_HI, + GP2AP020A00F_FLAG_DATA_READY, +}; + +enum gp2ap020a00f_thresh_val_id { + GP2AP020A00F_THRESH_TL, + GP2AP020A00F_THRESH_TH, + GP2AP020A00F_THRESH_PL, + GP2AP020A00F_THRESH_PH, +}; + +struct gp2ap020a00f_data { + const struct gp2ap020a00f_platform_data *pdata; + struct i2c_client *client; + struct mutex lock; + char *buffer; + struct regulator *vled_reg; + unsigned long flags; + enum gp2ap020a00f_opmode cur_opmode; + struct iio_trigger *trig; + struct regmap *regmap; + unsigned int thresh_val[4]; + u8 debug_reg_addr; + struct irq_work work; + wait_queue_head_t data_ready_queue; +}; + +static const u8 gp2ap020a00f_reg_init_tab[] = { + [GP2AP020A00F_OP_REG] = GP2AP020A00F_OP3_SHUTDOWN, + [GP2AP020A00F_ALS_REG] = GP2AP020A00F_RES_A_25ms | + GP2AP020A00F_RANGE_A_x8, + [GP2AP020A00F_PS_REG] = GP2AP020A00F_ALC_ON | + GP2AP020A00F_RES_P_1_56ms_x2 | + GP2AP020A00F_RANGE_P_x4, + [GP2AP020A00F_LED_REG] = GP2AP020A00F_INTVAL_0 | + GP2AP020A00F_IS_110mA | + GP2AP020A00F_FREQ_327_5kHz, + [GP2AP020A00F_TL_L_REG] = 0, + [GP2AP020A00F_TL_H_REG] = 0, + [GP2AP020A00F_TH_L_REG] = 0, + [GP2AP020A00F_TH_H_REG] = 0, + [GP2AP020A00F_PL_L_REG] = 0, + [GP2AP020A00F_PL_H_REG] = 0, + [GP2AP020A00F_PH_L_REG] = 0, + [GP2AP020A00F_PH_H_REG] = 0, +}; + +static bool gp2ap020a00f_is_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case GP2AP020A00F_OP_REG: + case GP2AP020A00F_D0_L_REG: + case GP2AP020A00F_D0_H_REG: + case GP2AP020A00F_D1_L_REG: + case GP2AP020A00F_D1_H_REG: + case GP2AP020A00F_D2_L_REG: + case GP2AP020A00F_D2_H_REG: + return true; + default: + return false; + } +} + +static const struct regmap_config gp2ap020a00f_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = GP2AP020A00F_D2_H_REG, + .cache_type = REGCACHE_RBTREE, + + .volatile_reg = gp2ap020a00f_is_volatile_reg, +}; + +static const struct gp2ap020a00f_mutable_config_regs { + u8 op_reg; + u8 als_reg; + u8 ps_reg; + u8 led_reg; +} opmode_regs_settings[GP2AP020A00F_NUM_OPMODES] = { + [GP2AP020A00F_OPMODE_READ_RAW_CLEAR] = { + GP2AP020A00F_OP_ALS | GP2AP020A00F_OP2_CONT_OPERATION + | GP2AP020A00F_OP3_OPERATION + | GP2AP020A00F_TYPE_AUTO_CALC, + GP2AP020A00F_PRST_ONCE, + GP2AP020A00F_INTTYPE_LEVEL, + GP2AP020A00F_PIN_ALS + }, + [GP2AP020A00F_OPMODE_READ_RAW_IR] = { + GP2AP020A00F_OP_ALS | GP2AP020A00F_OP2_CONT_OPERATION + | GP2AP020A00F_OP3_OPERATION + | GP2AP020A00F_TYPE_MANUAL_CALC, + GP2AP020A00F_PRST_ONCE, + GP2AP020A00F_INTTYPE_LEVEL, + GP2AP020A00F_PIN_ALS + }, + [GP2AP020A00F_OPMODE_READ_RAW_PROXIMITY] = { + GP2AP020A00F_OP_PS | GP2AP020A00F_OP2_CONT_OPERATION + | GP2AP020A00F_OP3_OPERATION + | GP2AP020A00F_TYPE_MANUAL_CALC, + GP2AP020A00F_PRST_ONCE, + GP2AP020A00F_INTTYPE_LEVEL, + GP2AP020A00F_PIN_PS + }, + [GP2AP020A00F_OPMODE_PROX_DETECT] = { + GP2AP020A00F_OP_PS | GP2AP020A00F_OP2_CONT_OPERATION + | GP2AP020A00F_OP3_OPERATION + | GP2AP020A00F_TYPE_MANUAL_CALC, + GP2AP020A00F_PRST_4_CYCLES, + GP2AP020A00F_INTTYPE_PULSE, + GP2AP020A00F_PIN_PS_DETECT + }, + [GP2AP020A00F_OPMODE_ALS] = { + GP2AP020A00F_OP_ALS | GP2AP020A00F_OP2_CONT_OPERATION + | GP2AP020A00F_OP3_OPERATION + | GP2AP020A00F_TYPE_AUTO_CALC, + GP2AP020A00F_PRST_ONCE, + GP2AP020A00F_INTTYPE_LEVEL, + GP2AP020A00F_PIN_ALS + }, + [GP2AP020A00F_OPMODE_PS] = { + GP2AP020A00F_OP_PS | GP2AP020A00F_OP2_CONT_OPERATION + | GP2AP020A00F_OP3_OPERATION + | GP2AP020A00F_TYPE_MANUAL_CALC, + GP2AP020A00F_PRST_4_CYCLES, + GP2AP020A00F_INTTYPE_LEVEL, + GP2AP020A00F_PIN_PS + }, + [GP2AP020A00F_OPMODE_ALS_AND_PS] = { + GP2AP020A00F_OP_ALS_AND_PS + | GP2AP020A00F_OP2_CONT_OPERATION + | GP2AP020A00F_OP3_OPERATION + | GP2AP020A00F_TYPE_AUTO_CALC, + GP2AP020A00F_PRST_4_CYCLES, + GP2AP020A00F_INTTYPE_LEVEL, + GP2AP020A00F_PIN_ALS_OR_PS + }, + [GP2AP020A00F_OPMODE_SHUTDOWN] = { GP2AP020A00F_OP3_SHUTDOWN, }, +}; + +static int gp2ap020a00f_set_operation_mode(struct gp2ap020a00f_data *data, + enum gp2ap020a00f_opmode op) +{ + unsigned int op_reg_val; + int err; + + if (op != GP2AP020A00F_OPMODE_SHUTDOWN) { + err = regmap_read(data->regmap, GP2AP020A00F_OP_REG, + &op_reg_val); + if (err < 0) + return err; + /* + * Shutdown the device if the operation being executed entails + * mode transition. + */ + if ((opmode_regs_settings[op].op_reg & GP2AP020A00F_OP_MASK) != + (op_reg_val & GP2AP020A00F_OP_MASK)) { + /* set shutdown mode */ + err = regmap_update_bits(data->regmap, + GP2AP020A00F_OP_REG, GP2AP020A00F_OP3_MASK, + GP2AP020A00F_OP3_SHUTDOWN); + if (err < 0) + return err; + } + + err = regmap_update_bits(data->regmap, GP2AP020A00F_ALS_REG, + GP2AP020A00F_PRST_MASK, opmode_regs_settings[op] + .als_reg); + if (err < 0) + return err; + + err = regmap_update_bits(data->regmap, GP2AP020A00F_PS_REG, + GP2AP020A00F_INTTYPE_MASK, opmode_regs_settings[op] + .ps_reg); + if (err < 0) + return err; + + err = regmap_update_bits(data->regmap, GP2AP020A00F_LED_REG, + GP2AP020A00F_PIN_MASK, opmode_regs_settings[op] + .led_reg); + if (err < 0) + return err; + } + + /* Set OP_REG and apply operation mode (power on / off) */ + err = regmap_update_bits(data->regmap, + GP2AP020A00F_OP_REG, + GP2AP020A00F_OP_MASK | GP2AP020A00F_OP2_MASK | + GP2AP020A00F_OP3_MASK | GP2AP020A00F_TYPE_MASK, + opmode_regs_settings[op].op_reg); + if (err < 0) + return err; + + data->cur_opmode = op; + + return 0; +} + +static bool gp2ap020a00f_als_enabled(struct gp2ap020a00f_data *data) +{ + return test_bit(GP2AP020A00F_FLAG_ALS_CLEAR_TRIGGER, &data->flags) || + test_bit(GP2AP020A00F_FLAG_ALS_IR_TRIGGER, &data->flags) || + test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &data->flags) || + test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &data->flags); +} + +static bool gp2ap020a00f_prox_detect_enabled(struct gp2ap020a00f_data *data) +{ + return test_bit(GP2AP020A00F_FLAG_PROX_RISING_EV, &data->flags) || + test_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV, &data->flags); +} + +static int gp2ap020a00f_write_event_threshold(struct gp2ap020a00f_data *data, + enum gp2ap020a00f_thresh_val_id th_val_id, + bool enable) +{ + __le16 thresh_buf = 0; + unsigned int thresh_reg_val; + + if (!enable) + thresh_reg_val = 0; + else if (test_bit(GP2AP020A00F_FLAG_LUX_MODE_HI, &data->flags) && + th_val_id != GP2AP020A00F_THRESH_PL && + th_val_id != GP2AP020A00F_THRESH_PH) + /* + * For the high lux mode ALS threshold has to be scaled down + * to allow for proper comparison with the output value. + */ + thresh_reg_val = data->thresh_val[th_val_id] / 16; + else + thresh_reg_val = data->thresh_val[th_val_id] > 16000 ? + 16000 : + data->thresh_val[th_val_id]; + + thresh_buf = cpu_to_le16(thresh_reg_val); + + return regmap_bulk_write(data->regmap, + GP2AP020A00F_THRESH_REG(th_val_id), + (u8 *)&thresh_buf, 2); +} + +static int gp2ap020a00f_alter_opmode(struct gp2ap020a00f_data *data, + enum gp2ap020a00f_opmode diff_mode, int add_sub) +{ + enum gp2ap020a00f_opmode new_mode; + + if (diff_mode != GP2AP020A00F_OPMODE_ALS && + diff_mode != GP2AP020A00F_OPMODE_PS) + return -EINVAL; + + if (add_sub == GP2AP020A00F_ADD_MODE) { + if (data->cur_opmode == GP2AP020A00F_OPMODE_SHUTDOWN) + new_mode = diff_mode; + else + new_mode = GP2AP020A00F_OPMODE_ALS_AND_PS; + } else { + if (data->cur_opmode == GP2AP020A00F_OPMODE_ALS_AND_PS) + new_mode = (diff_mode == GP2AP020A00F_OPMODE_ALS) ? + GP2AP020A00F_OPMODE_PS : + GP2AP020A00F_OPMODE_ALS; + else + new_mode = GP2AP020A00F_OPMODE_SHUTDOWN; + } + + return gp2ap020a00f_set_operation_mode(data, new_mode); +} + +static int gp2ap020a00f_exec_cmd(struct gp2ap020a00f_data *data, + enum gp2ap020a00f_cmd cmd) +{ + int err = 0; + + switch (cmd) { + case GP2AP020A00F_CMD_READ_RAW_CLEAR: + if (data->cur_opmode != GP2AP020A00F_OPMODE_SHUTDOWN) + return -EBUSY; + err = gp2ap020a00f_set_operation_mode(data, + GP2AP020A00F_OPMODE_READ_RAW_CLEAR); + break; + case GP2AP020A00F_CMD_READ_RAW_IR: + if (data->cur_opmode != GP2AP020A00F_OPMODE_SHUTDOWN) + return -EBUSY; + err = gp2ap020a00f_set_operation_mode(data, + GP2AP020A00F_OPMODE_READ_RAW_IR); + break; + case GP2AP020A00F_CMD_READ_RAW_PROXIMITY: + if (data->cur_opmode != GP2AP020A00F_OPMODE_SHUTDOWN) + return -EBUSY; + err = gp2ap020a00f_set_operation_mode(data, + GP2AP020A00F_OPMODE_READ_RAW_PROXIMITY); + break; + case GP2AP020A00F_CMD_TRIGGER_CLEAR_EN: + if (data->cur_opmode == GP2AP020A00F_OPMODE_PROX_DETECT) + return -EBUSY; + if (!gp2ap020a00f_als_enabled(data)) + err = gp2ap020a00f_alter_opmode(data, + GP2AP020A00F_OPMODE_ALS, + GP2AP020A00F_ADD_MODE); + set_bit(GP2AP020A00F_FLAG_ALS_CLEAR_TRIGGER, &data->flags); + break; + case GP2AP020A00F_CMD_TRIGGER_CLEAR_DIS: + clear_bit(GP2AP020A00F_FLAG_ALS_CLEAR_TRIGGER, &data->flags); + if (gp2ap020a00f_als_enabled(data)) + break; + err = gp2ap020a00f_alter_opmode(data, + GP2AP020A00F_OPMODE_ALS, + GP2AP020A00F_SUBTRACT_MODE); + break; + case GP2AP020A00F_CMD_TRIGGER_IR_EN: + if (data->cur_opmode == GP2AP020A00F_OPMODE_PROX_DETECT) + return -EBUSY; + if (!gp2ap020a00f_als_enabled(data)) + err = gp2ap020a00f_alter_opmode(data, + GP2AP020A00F_OPMODE_ALS, + GP2AP020A00F_ADD_MODE); + set_bit(GP2AP020A00F_FLAG_ALS_IR_TRIGGER, &data->flags); + break; + case GP2AP020A00F_CMD_TRIGGER_IR_DIS: + clear_bit(GP2AP020A00F_FLAG_ALS_IR_TRIGGER, &data->flags); + if (gp2ap020a00f_als_enabled(data)) + break; + err = gp2ap020a00f_alter_opmode(data, + GP2AP020A00F_OPMODE_ALS, + GP2AP020A00F_SUBTRACT_MODE); + break; + case GP2AP020A00F_CMD_TRIGGER_PROX_EN: + if (data->cur_opmode == GP2AP020A00F_OPMODE_PROX_DETECT) + return -EBUSY; + err = gp2ap020a00f_alter_opmode(data, + GP2AP020A00F_OPMODE_PS, + GP2AP020A00F_ADD_MODE); + set_bit(GP2AP020A00F_FLAG_PROX_TRIGGER, &data->flags); + break; + case GP2AP020A00F_CMD_TRIGGER_PROX_DIS: + clear_bit(GP2AP020A00F_FLAG_PROX_TRIGGER, &data->flags); + err = gp2ap020a00f_alter_opmode(data, + GP2AP020A00F_OPMODE_PS, + GP2AP020A00F_SUBTRACT_MODE); + break; + case GP2AP020A00F_CMD_ALS_HIGH_EV_EN: + if (test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &data->flags)) + return 0; + if (data->cur_opmode == GP2AP020A00F_OPMODE_PROX_DETECT) + return -EBUSY; + if (!gp2ap020a00f_als_enabled(data)) { + err = gp2ap020a00f_alter_opmode(data, + GP2AP020A00F_OPMODE_ALS, + GP2AP020A00F_ADD_MODE); + if (err < 0) + return err; + } + set_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &data->flags); + err = gp2ap020a00f_write_event_threshold(data, + GP2AP020A00F_THRESH_TH, true); + break; + case GP2AP020A00F_CMD_ALS_HIGH_EV_DIS: + if (!test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &data->flags)) + return 0; + clear_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &data->flags); + if (!gp2ap020a00f_als_enabled(data)) { + err = gp2ap020a00f_alter_opmode(data, + GP2AP020A00F_OPMODE_ALS, + GP2AP020A00F_SUBTRACT_MODE); + if (err < 0) + return err; + } + err = gp2ap020a00f_write_event_threshold(data, + GP2AP020A00F_THRESH_TH, false); + break; + case GP2AP020A00F_CMD_ALS_LOW_EV_EN: + if (test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &data->flags)) + return 0; + if (data->cur_opmode == GP2AP020A00F_OPMODE_PROX_DETECT) + return -EBUSY; + if (!gp2ap020a00f_als_enabled(data)) { + err = gp2ap020a00f_alter_opmode(data, + GP2AP020A00F_OPMODE_ALS, + GP2AP020A00F_ADD_MODE); + if (err < 0) + return err; + } + set_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &data->flags); + err = gp2ap020a00f_write_event_threshold(data, + GP2AP020A00F_THRESH_TL, true); + break; + case GP2AP020A00F_CMD_ALS_LOW_EV_DIS: + if (!test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &data->flags)) + return 0; + clear_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &data->flags); + if (!gp2ap020a00f_als_enabled(data)) { + err = gp2ap020a00f_alter_opmode(data, + GP2AP020A00F_OPMODE_ALS, + GP2AP020A00F_SUBTRACT_MODE); + if (err < 0) + return err; + } + err = gp2ap020a00f_write_event_threshold(data, + GP2AP020A00F_THRESH_TL, false); + break; + case GP2AP020A00F_CMD_PROX_HIGH_EV_EN: + if (test_bit(GP2AP020A00F_FLAG_PROX_RISING_EV, &data->flags)) + return 0; + if (gp2ap020a00f_als_enabled(data) || + data->cur_opmode == GP2AP020A00F_OPMODE_PS) + return -EBUSY; + if (!gp2ap020a00f_prox_detect_enabled(data)) { + err = gp2ap020a00f_set_operation_mode(data, + GP2AP020A00F_OPMODE_PROX_DETECT); + if (err < 0) + return err; + } + set_bit(GP2AP020A00F_FLAG_PROX_RISING_EV, &data->flags); + err = gp2ap020a00f_write_event_threshold(data, + GP2AP020A00F_THRESH_PH, true); + break; + case GP2AP020A00F_CMD_PROX_HIGH_EV_DIS: + if (!test_bit(GP2AP020A00F_FLAG_PROX_RISING_EV, &data->flags)) + return 0; + clear_bit(GP2AP020A00F_FLAG_PROX_RISING_EV, &data->flags); + err = gp2ap020a00f_set_operation_mode(data, + GP2AP020A00F_OPMODE_SHUTDOWN); + if (err < 0) + return err; + err = gp2ap020a00f_write_event_threshold(data, + GP2AP020A00F_THRESH_PH, false); + break; + case GP2AP020A00F_CMD_PROX_LOW_EV_EN: + if (test_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV, &data->flags)) + return 0; + if (gp2ap020a00f_als_enabled(data) || + data->cur_opmode == GP2AP020A00F_OPMODE_PS) + return -EBUSY; + if (!gp2ap020a00f_prox_detect_enabled(data)) { + err = gp2ap020a00f_set_operation_mode(data, + GP2AP020A00F_OPMODE_PROX_DETECT); + if (err < 0) + return err; + } + set_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV, &data->flags); + err = gp2ap020a00f_write_event_threshold(data, + GP2AP020A00F_THRESH_PL, true); + break; + case GP2AP020A00F_CMD_PROX_LOW_EV_DIS: + if (!test_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV, &data->flags)) + return 0; + clear_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV, &data->flags); + err = gp2ap020a00f_set_operation_mode(data, + GP2AP020A00F_OPMODE_SHUTDOWN); + if (err < 0) + return err; + err = gp2ap020a00f_write_event_threshold(data, + GP2AP020A00F_THRESH_PL, false); + break; + } + + return err; +} + +static int wait_conversion_complete_irq(struct gp2ap020a00f_data *data) +{ + int ret; + + ret = wait_event_timeout(data->data_ready_queue, + test_bit(GP2AP020A00F_FLAG_DATA_READY, + &data->flags), + GP2AP020A00F_DATA_READY_TIMEOUT); + clear_bit(GP2AP020A00F_FLAG_DATA_READY, &data->flags); + + return ret > 0 ? 0 : -ETIME; +} + +static int gp2ap020a00f_read_output(struct gp2ap020a00f_data *data, + unsigned int output_reg, int *val) +{ + u8 reg_buf[2]; + int err; + + err = wait_conversion_complete_irq(data); + if (err < 0) + dev_dbg(&data->client->dev, "data ready timeout\n"); + + err = regmap_bulk_read(data->regmap, output_reg, reg_buf, 2); + if (err < 0) + return err; + + *val = le16_to_cpup((__le16 *)reg_buf); + + return err; +} + +static bool gp2ap020a00f_adjust_lux_mode(struct gp2ap020a00f_data *data, + int output_val) +{ + u8 new_range = 0xff; + int err; + + if (!test_bit(GP2AP020A00F_FLAG_LUX_MODE_HI, &data->flags)) { + if (output_val > 16000) { + set_bit(GP2AP020A00F_FLAG_LUX_MODE_HI, &data->flags); + new_range = GP2AP020A00F_RANGE_A_x128; + } + } else { + if (output_val < 1000) { + clear_bit(GP2AP020A00F_FLAG_LUX_MODE_HI, &data->flags); + new_range = GP2AP020A00F_RANGE_A_x8; + } + } + + if (new_range != 0xff) { + /* Clear als threshold registers to avoid spurious + * events caused by lux mode transition. + */ + err = gp2ap020a00f_write_event_threshold(data, + GP2AP020A00F_THRESH_TH, false); + if (err < 0) { + dev_err(&data->client->dev, + "Clearing als threshold register failed.\n"); + return false; + } + + err = gp2ap020a00f_write_event_threshold(data, + GP2AP020A00F_THRESH_TL, false); + if (err < 0) { + dev_err(&data->client->dev, + "Clearing als threshold register failed.\n"); + return false; + } + + /* Change lux mode */ + err = regmap_update_bits(data->regmap, + GP2AP020A00F_OP_REG, + GP2AP020A00F_OP3_MASK, + GP2AP020A00F_OP3_SHUTDOWN); + + if (err < 0) { + dev_err(&data->client->dev, + "Shutting down the device failed.\n"); + return false; + } + + err = regmap_update_bits(data->regmap, + GP2AP020A00F_ALS_REG, + GP2AP020A00F_RANGE_A_MASK, + new_range); + + if (err < 0) { + dev_err(&data->client->dev, + "Adjusting device lux mode failed.\n"); + return false; + } + + err = regmap_update_bits(data->regmap, + GP2AP020A00F_OP_REG, + GP2AP020A00F_OP3_MASK, + GP2AP020A00F_OP3_OPERATION); + + if (err < 0) { + dev_err(&data->client->dev, + "Powering up the device failed.\n"); + return false; + } + + /* Adjust als threshold register values to the new lux mode */ + if (test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &data->flags)) { + err = gp2ap020a00f_write_event_threshold(data, + GP2AP020A00F_THRESH_TH, true); + if (err < 0) { + dev_err(&data->client->dev, + "Adjusting als threshold value failed.\n"); + return false; + } + } + + if (test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &data->flags)) { + err = gp2ap020a00f_write_event_threshold(data, + GP2AP020A00F_THRESH_TL, true); + if (err < 0) { + dev_err(&data->client->dev, + "Adjusting als threshold value failed.\n"); + return false; + } + } + + return true; + } + + return false; +} + +static void gp2ap020a00f_output_to_lux(struct gp2ap020a00f_data *data, + int *output_val) +{ + if (test_bit(GP2AP020A00F_FLAG_LUX_MODE_HI, &data->flags)) + *output_val *= 16; +} + +static void gp2ap020a00f_iio_trigger_work(struct irq_work *work) +{ + struct gp2ap020a00f_data *data = + container_of(work, struct gp2ap020a00f_data, work); + + iio_trigger_poll(data->trig, 0); +} + +static irqreturn_t gp2ap020a00f_prox_sensing_handler(int irq, void *data) +{ + struct iio_dev *indio_dev = data; + struct gp2ap020a00f_data *priv = iio_priv(indio_dev); + unsigned int op_reg_val; + int ret; + + /* Read interrupt flags */ + ret = regmap_read(priv->regmap, GP2AP020A00F_OP_REG, &op_reg_val); + if (ret < 0) + return IRQ_HANDLED; + + if (gp2ap020a00f_prox_detect_enabled(priv)) { + if (op_reg_val & GP2AP020A00F_PROX_DETECT) { + iio_push_event(indio_dev, + IIO_UNMOD_EVENT_CODE( + IIO_PROXIMITY, + GP2AP020A00F_SCAN_MODE_PROXIMITY, + IIO_EV_TYPE_ROC, + IIO_EV_DIR_RISING), + iio_get_time_ns()); + } else { + iio_push_event(indio_dev, + IIO_UNMOD_EVENT_CODE( + IIO_PROXIMITY, + GP2AP020A00F_SCAN_MODE_PROXIMITY, + IIO_EV_TYPE_ROC, + IIO_EV_DIR_FALLING), + iio_get_time_ns()); + } + } + + return IRQ_HANDLED; +} + +static irqreturn_t gp2ap020a00f_thresh_event_handler(int irq, void *data) +{ + struct iio_dev *indio_dev = data; + struct gp2ap020a00f_data *priv = iio_priv(indio_dev); + u8 op_reg_flags, d0_reg_buf[2]; + unsigned int output_val, op_reg_val; + int thresh_val_id, ret; + + /* Read interrupt flags */ + ret = regmap_read(priv->regmap, GP2AP020A00F_OP_REG, + &op_reg_val); + if (ret < 0) + goto done; + + op_reg_flags = op_reg_val & (GP2AP020A00F_FLAG_A | GP2AP020A00F_FLAG_P + | GP2AP020A00F_PROX_DETECT); + + op_reg_val &= (~GP2AP020A00F_FLAG_A & ~GP2AP020A00F_FLAG_P + & ~GP2AP020A00F_PROX_DETECT); + + /* Clear interrupt flags (if not in INTTYPE_PULSE mode) */ + if (priv->cur_opmode != GP2AP020A00F_OPMODE_PROX_DETECT) { + ret = regmap_write(priv->regmap, GP2AP020A00F_OP_REG, + op_reg_val); + if (ret < 0) + goto done; + } + + if (op_reg_flags & GP2AP020A00F_FLAG_A) { + /* Check D0 register to assess if the lux mode + * transition is required. + */ + ret = regmap_bulk_read(priv->regmap, GP2AP020A00F_D0_L_REG, + d0_reg_buf, 2); + if (ret < 0) + goto done; + + output_val = le16_to_cpup((__le16 *)d0_reg_buf); + + if (gp2ap020a00f_adjust_lux_mode(priv, output_val)) + goto done; + + gp2ap020a00f_output_to_lux(priv, &output_val); + + /* + * We need to check output value to distinguish + * between high and low ambient light threshold event. + */ + if (test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &priv->flags)) { + thresh_val_id = + GP2AP020A00F_THRESH_VAL_ID(GP2AP020A00F_TH_L_REG); + if (output_val > priv->thresh_val[thresh_val_id]) + iio_push_event(indio_dev, + IIO_MOD_EVENT_CODE( + IIO_LIGHT, + GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR, + IIO_MOD_LIGHT_CLEAR, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_RISING), + iio_get_time_ns()); + } + + if (test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &priv->flags)) { + thresh_val_id = + GP2AP020A00F_THRESH_VAL_ID(GP2AP020A00F_TL_L_REG); + if (output_val < priv->thresh_val[thresh_val_id]) + iio_push_event(indio_dev, + IIO_MOD_EVENT_CODE( + IIO_LIGHT, + GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR, + IIO_MOD_LIGHT_CLEAR, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_FALLING), + iio_get_time_ns()); + } + } + + if (priv->cur_opmode == GP2AP020A00F_OPMODE_READ_RAW_CLEAR || + priv->cur_opmode == GP2AP020A00F_OPMODE_READ_RAW_IR || + priv->cur_opmode == GP2AP020A00F_OPMODE_READ_RAW_PROXIMITY) { + set_bit(GP2AP020A00F_FLAG_DATA_READY, &priv->flags); + wake_up(&priv->data_ready_queue); + goto done; + } + + if (test_bit(GP2AP020A00F_FLAG_ALS_CLEAR_TRIGGER, &priv->flags) || + test_bit(GP2AP020A00F_FLAG_ALS_IR_TRIGGER, &priv->flags) || + test_bit(GP2AP020A00F_FLAG_PROX_TRIGGER, &priv->flags)) + /* This fires off the trigger. */ + irq_work_queue(&priv->work); + +done: + return IRQ_HANDLED; +} + +static irqreturn_t gp2ap020a00f_trigger_handler(int irq, void *data) +{ + struct iio_poll_func *pf = data; + struct iio_dev *indio_dev = pf->indio_dev; + struct gp2ap020a00f_data *priv = iio_priv(indio_dev); + size_t d_size = 0; + __le32 light_lux; + int i, out_val, ret; + + for_each_set_bit(i, indio_dev->active_scan_mask, + indio_dev->masklength) { + ret = regmap_bulk_read(priv->regmap, + GP2AP020A00F_DATA_REG(i), + &priv->buffer[d_size], 2); + if (ret < 0) + goto done; + + if (i == GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR || + i == GP2AP020A00F_SCAN_MODE_LIGHT_IR) { + out_val = le16_to_cpup((__le16 *)&priv->buffer[d_size]); + gp2ap020a00f_output_to_lux(priv, &out_val); + light_lux = cpu_to_le32(out_val); + memcpy(&priv->buffer[d_size], (u8 *)&light_lux, 4); + d_size += 4; + } else { + d_size += 2; + } + } + + iio_push_to_buffers_with_timestamp(indio_dev, priv->buffer, + pf->timestamp); +done: + iio_trigger_notify_done(indio_dev->trig); + + return IRQ_HANDLED; +} + +static u8 gp2ap020a00f_get_reg_by_event_code(u64 event_code) +{ + int event_dir = IIO_EVENT_CODE_EXTRACT_DIR(event_code); + + switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) { + case IIO_PROXIMITY: + if (event_dir == IIO_EV_DIR_RISING) + return GP2AP020A00F_PH_L_REG; + else + return GP2AP020A00F_PL_L_REG; + case IIO_LIGHT: + if (event_dir == IIO_EV_DIR_RISING) + return GP2AP020A00F_TH_L_REG; + else + return GP2AP020A00F_TL_L_REG; + } + + return -EINVAL; +} + +static int gp2ap020a00f_write_event_val(struct iio_dev *indio_dev, + u64 event_code, int val) +{ + struct gp2ap020a00f_data *data = iio_priv(indio_dev); + bool event_en = false; + u8 thresh_val_id; + u8 thresh_reg_l; + int err = 0; + + mutex_lock(&data->lock); + + thresh_reg_l = gp2ap020a00f_get_reg_by_event_code(event_code); + thresh_val_id = GP2AP020A00F_THRESH_VAL_ID(thresh_reg_l); + + if (thresh_val_id > GP2AP020A00F_THRESH_PH) { + err = -EINVAL; + goto error_unlock; + } + + switch (thresh_reg_l) { + case GP2AP020A00F_TH_L_REG: + event_en = test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, + &data->flags); + break; + case GP2AP020A00F_TL_L_REG: + event_en = test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, + &data->flags); + break; + case GP2AP020A00F_PH_L_REG: + if (val == 0) { + err = -EINVAL; + goto error_unlock; + } + event_en = test_bit(GP2AP020A00F_FLAG_PROX_RISING_EV, + &data->flags); + break; + case GP2AP020A00F_PL_L_REG: + if (val == 0) { + err = -EINVAL; + goto error_unlock; + } + event_en = test_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV, + &data->flags); + break; + } + + data->thresh_val[thresh_val_id] = val; + err = gp2ap020a00f_write_event_threshold(data, thresh_val_id, + event_en); +error_unlock: + mutex_unlock(&data->lock); + + return err; +} + +static int gp2ap020a00f_read_event_val(struct iio_dev *indio_dev, + u64 event_code, int *val) +{ + struct gp2ap020a00f_data *data = iio_priv(indio_dev); + u8 thresh_reg_l; + int err = 0; + + mutex_lock(&data->lock); + + thresh_reg_l = gp2ap020a00f_get_reg_by_event_code(event_code); + + if (thresh_reg_l > GP2AP020A00F_PH_L_REG) { + err = -EINVAL; + goto error_unlock; + } + + *val = data->thresh_val[GP2AP020A00F_THRESH_VAL_ID(thresh_reg_l)]; + +error_unlock: + mutex_unlock(&data->lock); + + return err; +} + +static int gp2ap020a00f_write_prox_event_config(struct iio_dev *indio_dev, + u64 event_code, int state) +{ + struct gp2ap020a00f_data *data = iio_priv(indio_dev); + enum gp2ap020a00f_cmd cmd_high_ev, cmd_low_ev; + int err; + + cmd_high_ev = state ? GP2AP020A00F_CMD_PROX_HIGH_EV_EN : + GP2AP020A00F_CMD_PROX_HIGH_EV_DIS; + cmd_low_ev = state ? GP2AP020A00F_CMD_PROX_LOW_EV_EN : + GP2AP020A00F_CMD_PROX_LOW_EV_DIS; + + /* + * In order to enable proximity detection feature in the device + * both high and low threshold registers have to be written + * with different values, greater than zero. + */ + if (state) { + if (data->thresh_val[GP2AP020A00F_THRESH_PL] == 0) + return -EINVAL; + + if (data->thresh_val[GP2AP020A00F_THRESH_PH] == 0) + return -EINVAL; + } + + err = gp2ap020a00f_exec_cmd(data, cmd_high_ev); + if (err < 0) + return err; + + err = gp2ap020a00f_exec_cmd(data, cmd_low_ev); + if (err < 0) + return err; + + free_irq(data->client->irq, indio_dev); + + if (state) + err = request_threaded_irq(data->client->irq, NULL, + &gp2ap020a00f_prox_sensing_handler, + IRQF_TRIGGER_RISING | + IRQF_TRIGGER_FALLING | + IRQF_ONESHOT, + "gp2ap020a00f_prox_sensing", + indio_dev); + else { + err = request_threaded_irq(data->client->irq, NULL, + &gp2ap020a00f_thresh_event_handler, + IRQF_TRIGGER_FALLING | + IRQF_ONESHOT, + "gp2ap020a00f_thresh_event", + indio_dev); + } + + return err; +} + +static int gp2ap020a00f_write_event_config(struct iio_dev *indio_dev, + u64 event_code, int state) +{ + struct gp2ap020a00f_data *data = iio_priv(indio_dev); + enum gp2ap020a00f_cmd cmd; + int err; + + mutex_lock(&data->lock); + + switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) { + case IIO_PROXIMITY: + err = gp2ap020a00f_write_prox_event_config(indio_dev, + event_code, state); + break; + case IIO_LIGHT: + if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) + == IIO_EV_DIR_RISING) { + cmd = state ? GP2AP020A00F_CMD_ALS_HIGH_EV_EN : + GP2AP020A00F_CMD_ALS_HIGH_EV_DIS; + err = gp2ap020a00f_exec_cmd(data, cmd); + } else { + cmd = state ? GP2AP020A00F_CMD_ALS_LOW_EV_EN : + GP2AP020A00F_CMD_ALS_LOW_EV_DIS; + err = gp2ap020a00f_exec_cmd(data, cmd); + } + break; + default: + err = -EINVAL; + } + + mutex_unlock(&data->lock); + + return err; +} + +static int gp2ap020a00f_read_event_config(struct iio_dev *indio_dev, + u64 event_code) +{ + struct gp2ap020a00f_data *data = iio_priv(indio_dev); + int event_en = 0; + + mutex_lock(&data->lock); + + switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) { + case IIO_PROXIMITY: + if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) + == IIO_EV_DIR_RISING) + event_en = test_bit(GP2AP020A00F_FLAG_PROX_RISING_EV, + &data->flags); + else + event_en = test_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV, + &data->flags); + break; + case IIO_LIGHT: + if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) + == IIO_EV_DIR_RISING) + event_en = test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, + &data->flags); + else + event_en = test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, + &data->flags); + break; + } + + mutex_unlock(&data->lock); + + return event_en; +} + +static int gp2ap020a00f_read_channel(struct gp2ap020a00f_data *data, + struct iio_chan_spec const *chan, int *val) +{ + enum gp2ap020a00f_cmd cmd; + int err; + + switch (chan->scan_index) { + case GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR: + cmd = GP2AP020A00F_CMD_READ_RAW_CLEAR; + break; + case GP2AP020A00F_SCAN_MODE_LIGHT_IR: + cmd = GP2AP020A00F_CMD_READ_RAW_IR; + break; + case GP2AP020A00F_SCAN_MODE_PROXIMITY: + cmd = GP2AP020A00F_CMD_READ_RAW_PROXIMITY; + break; + default: + return -EINVAL; + } + + err = gp2ap020a00f_exec_cmd(data, cmd); + if (err < 0) { + dev_err(&data->client->dev, + "gp2ap020a00f_exec_cmd failed\n"); + goto error_ret; + } + + err = gp2ap020a00f_read_output(data, chan->address, val); + if (err < 0) + dev_err(&data->client->dev, + "gp2ap020a00f_read_output failed\n"); + + err = gp2ap020a00f_set_operation_mode(data, + GP2AP020A00F_OPMODE_SHUTDOWN); + if (err < 0) + dev_err(&data->client->dev, + "Failed to shut down the device.\n"); + + if (cmd == GP2AP020A00F_CMD_READ_RAW_CLEAR || + cmd == GP2AP020A00F_CMD_READ_RAW_IR) + gp2ap020a00f_output_to_lux(data, val); + +error_ret: + return err; +} + +static int gp2ap020a00f_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, + long mask) +{ + struct gp2ap020a00f_data *data = iio_priv(indio_dev); + int err = -EINVAL; + + mutex_lock(&data->lock); + + switch (mask) { + case IIO_CHAN_INFO_RAW: + if (iio_buffer_enabled(indio_dev)) { + err = -EBUSY; + goto error_unlock; + } + + err = gp2ap020a00f_read_channel(data, chan, val); + break; + } + +error_unlock: + mutex_unlock(&data->lock); + + return err < 0 ? err : IIO_VAL_INT; +} + +static const struct iio_chan_spec gp2ap020a00f_channels[] = { + { + .type = IIO_LIGHT, + .channel2 = IIO_MOD_LIGHT_CLEAR, + .modified = 1, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .scan_type = { + .sign = 'u', + .realbits = 24, + .shift = 0, + .storagebits = 32, + .endianness = IIO_LE, + }, + .scan_index = GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR, + .address = GP2AP020A00F_D0_L_REG, + .event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH, + IIO_EV_DIR_RISING) | + IIO_EV_BIT(IIO_EV_TYPE_THRESH, + IIO_EV_DIR_FALLING), + }, + { + .type = IIO_LIGHT, + .channel2 = IIO_MOD_LIGHT_IR, + .modified = 1, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .scan_type = { + .sign = 'u', + .realbits = 24, + .shift = 0, + .storagebits = 32, + .endianness = IIO_LE, + }, + .scan_index = GP2AP020A00F_SCAN_MODE_LIGHT_IR, + .address = GP2AP020A00F_D1_L_REG, + }, + { + .type = IIO_PROXIMITY, + .modified = 0, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .scan_type = { + .sign = 'u', + .realbits = 16, + .shift = 0, + .storagebits = 16, + .endianness = IIO_LE, + }, + .scan_index = GP2AP020A00F_SCAN_MODE_PROXIMITY, + .address = GP2AP020A00F_D2_L_REG, + .event_mask = IIO_EV_BIT(IIO_EV_TYPE_ROC, + IIO_EV_DIR_RISING) | + IIO_EV_BIT(IIO_EV_TYPE_ROC, + IIO_EV_DIR_FALLING), + }, + IIO_CHAN_SOFT_TIMESTAMP(GP2AP020A00F_CHAN_TIMESTAMP), +}; + +static const struct iio_info gp2ap020a00f_info = { + .read_raw = &gp2ap020a00f_read_raw, + .read_event_value = &gp2ap020a00f_read_event_val, + .read_event_config = &gp2ap020a00f_read_event_config, + .write_event_value = &gp2ap020a00f_write_event_val, + .write_event_config = &gp2ap020a00f_write_event_config, + .driver_module = THIS_MODULE, +}; + +static int gp2ap020a00f_buffer_postenable(struct iio_dev *indio_dev) +{ + struct gp2ap020a00f_data *data = iio_priv(indio_dev); + int i, err = 0; + + mutex_lock(&data->lock); + + /* + * Enable triggers according to the scan_mask. Enabling either + * LIGHT_CLEAR or LIGHT_IR scan mode results in enabling ALS + * module in the device, which generates samples in both D0 (clear) + * and D1 (ir) registers. As the two registers are bound to the + * two separate IIO channels they are treated in the driver logic + * as if they were controlled independently. + */ + for_each_set_bit(i, indio_dev->active_scan_mask, + indio_dev->masklength) { + switch (i) { + case GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR: + err = gp2ap020a00f_exec_cmd(data, + GP2AP020A00F_CMD_TRIGGER_CLEAR_EN); + break; + case GP2AP020A00F_SCAN_MODE_LIGHT_IR: + err = gp2ap020a00f_exec_cmd(data, + GP2AP020A00F_CMD_TRIGGER_IR_EN); + break; + case GP2AP020A00F_SCAN_MODE_PROXIMITY: + err = gp2ap020a00f_exec_cmd(data, + GP2AP020A00F_CMD_TRIGGER_PROX_EN); + break; + } + } + + if (err < 0) + goto error_unlock; + + data->buffer = kmalloc(indio_dev->scan_bytes, GFP_KERNEL); + if (!data->buffer) { + err = -ENOMEM; + goto error_unlock; + } + + err = iio_triggered_buffer_postenable(indio_dev); + +error_unlock: + mutex_unlock(&data->lock); + + return err; +} + +static int gp2ap020a00f_buffer_predisable(struct iio_dev *indio_dev) +{ + struct gp2ap020a00f_data *data = iio_priv(indio_dev); + int i, err; + + mutex_lock(&data->lock); + + err = iio_triggered_buffer_predisable(indio_dev); + if (err < 0) + goto error_unlock; + + for_each_set_bit(i, indio_dev->active_scan_mask, + indio_dev->masklength) { + switch (i) { + case GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR: + err = gp2ap020a00f_exec_cmd(data, + GP2AP020A00F_CMD_TRIGGER_CLEAR_DIS); + break; + case GP2AP020A00F_SCAN_MODE_LIGHT_IR: + err = gp2ap020a00f_exec_cmd(data, + GP2AP020A00F_CMD_TRIGGER_IR_DIS); + break; + case GP2AP020A00F_SCAN_MODE_PROXIMITY: + err = gp2ap020a00f_exec_cmd(data, + GP2AP020A00F_CMD_TRIGGER_PROX_DIS); + break; + } + } + + if (err == 0) + kfree(data->buffer); + +error_unlock: + mutex_unlock(&data->lock); + + return err; +} + +static const struct iio_buffer_setup_ops gp2ap020a00f_buffer_setup_ops = { + .preenable = &iio_sw_buffer_preenable, + .postenable = &gp2ap020a00f_buffer_postenable, + .predisable = &gp2ap020a00f_buffer_predisable, +}; + +static const struct iio_trigger_ops gp2ap020a00f_trigger_ops = { + .owner = THIS_MODULE, +}; + +static int gp2ap020a00f_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct gp2ap020a00f_data *data; + struct iio_dev *indio_dev; + struct regmap *regmap; + int err; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + data = iio_priv(indio_dev); + + data->vled_reg = devm_regulator_get(&client->dev, "vled"); + if (IS_ERR(data->vled_reg)) + return PTR_ERR(data->vled_reg); + + err = regulator_enable(data->vled_reg); + if (err) + return err; + + regmap = devm_regmap_init_i2c(client, &gp2ap020a00f_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&client->dev, "Regmap initialization failed.\n"); + err = PTR_ERR(regmap); + goto error_regulator_disable; + } + + /* Initialize device registers */ + err = regmap_bulk_write(regmap, GP2AP020A00F_OP_REG, + gp2ap020a00f_reg_init_tab, + ARRAY_SIZE(gp2ap020a00f_reg_init_tab)); + + if (err < 0) { + dev_err(&client->dev, "Device initialization failed.\n"); + goto error_regulator_disable; + } + + i2c_set_clientdata(client, indio_dev); + + data->client = client; + data->cur_opmode = GP2AP020A00F_OPMODE_SHUTDOWN; + data->regmap = regmap; + init_waitqueue_head(&data->data_ready_queue); + + mutex_init(&data->lock); + indio_dev->dev.parent = &client->dev; + indio_dev->channels = gp2ap020a00f_channels; + indio_dev->num_channels = ARRAY_SIZE(gp2ap020a00f_channels); + indio_dev->info = &gp2ap020a00f_info; + indio_dev->name = id->name; + indio_dev->modes = INDIO_DIRECT_MODE; + + /* Allocate buffer */ + err = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time, + &gp2ap020a00f_trigger_handler, &gp2ap020a00f_buffer_setup_ops); + if (err < 0) + goto error_regulator_disable; + + /* Allocate trigger */ + data->trig = devm_iio_trigger_alloc(&client->dev, "%s-trigger", + indio_dev->name); + if (data->trig == NULL) { + err = -ENOMEM; + dev_err(&indio_dev->dev, "Failed to allocate iio trigger.\n"); + goto error_uninit_buffer; + } + + /* This needs to be requested here for read_raw calls to work. */ + err = request_threaded_irq(client->irq, NULL, + &gp2ap020a00f_thresh_event_handler, + IRQF_TRIGGER_FALLING | + IRQF_ONESHOT, + "gp2ap020a00f_als_event", + indio_dev); + if (err < 0) { + dev_err(&client->dev, "Irq request failed.\n"); + goto error_uninit_buffer; + } + + data->trig->ops = &gp2ap020a00f_trigger_ops; + data->trig->dev.parent = &data->client->dev; + + init_irq_work(&data->work, gp2ap020a00f_iio_trigger_work); + + err = iio_trigger_register(data->trig); + if (err < 0) { + dev_err(&client->dev, "Failed to register iio trigger.\n"); + goto error_free_irq; + } + + err = iio_device_register(indio_dev); + if (err < 0) + goto error_trigger_unregister; + + return 0; + +error_trigger_unregister: + iio_trigger_unregister(data->trig); +error_free_irq: + free_irq(client->irq, indio_dev); +error_uninit_buffer: + iio_triggered_buffer_cleanup(indio_dev); +error_regulator_disable: + regulator_disable(data->vled_reg); + + return err; +} + +static int gp2ap020a00f_remove(struct i2c_client *client) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(client); + struct gp2ap020a00f_data *data = iio_priv(indio_dev); + int err; + + err = gp2ap020a00f_set_operation_mode(data, + GP2AP020A00F_OPMODE_SHUTDOWN); + if (err < 0) + dev_err(&indio_dev->dev, "Failed to power off the device.\n"); + + iio_device_unregister(indio_dev); + iio_trigger_unregister(data->trig); + free_irq(client->irq, indio_dev); + iio_triggered_buffer_cleanup(indio_dev); + regulator_disable(data->vled_reg); + + return 0; +} + +static const struct i2c_device_id gp2ap020a00f_id[] = { + { GP2A_I2C_NAME, 0 }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, gp2ap020a00f_id); + +#ifdef CONFIG_OF +static const struct of_device_id gp2ap020a00f_of_match[] = { + { .compatible = "sharp,gp2ap020a00f" }, + { } +}; +#endif + +static struct i2c_driver gp2ap020a00f_driver = { + .driver = { + .name = GP2A_I2C_NAME, + .of_match_table = of_match_ptr(gp2ap020a00f_of_match), + .owner = THIS_MODULE, + }, + .probe = gp2ap020a00f_probe, + .remove = gp2ap020a00f_remove, + .id_table = gp2ap020a00f_id, +}; + +module_i2c_driver(gp2ap020a00f_driver); + +MODULE_AUTHOR("Jacek Anaszewski <j.anaszewski@samsung.com>"); +MODULE_DESCRIPTION("Sharp GP2AP020A00F Proximity/ALS sensor driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c index e59d00c..fa6ae8c 100644 --- a/drivers/iio/light/hid-sensor-als.c +++ b/drivers/iio/light/hid-sensor-als.c @@ -161,10 +161,11 @@ static const struct iio_info als_info = { }; /* Function to push data to buffer */ -static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len) +static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data, + int len) { dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n"); - iio_push_to_buffers(indio_dev, (u8 *)data); + iio_push_to_buffers(indio_dev, data); } /* Callback handler to send event after all samples are received and captured */ @@ -179,7 +180,7 @@ static int als_proc_event(struct hid_sensor_hub_device *hsdev, als_state->common_attributes.data_ready); if (als_state->common_attributes.data_ready) hid_sensor_push_data(indio_dev, - (u8 *)&als_state->illum, + &als_state->illum, sizeof(als_state->illum)); return 0; diff --git a/drivers/iio/light/tcs3472.c b/drivers/iio/light/tcs3472.c new file mode 100644 index 0000000..45df220 --- /dev/null +++ b/drivers/iio/light/tcs3472.c @@ -0,0 +1,367 @@ +/* + * tcs3472.c - Support for TAOS TCS3472 color light-to-digital converter + * + * Copyright (c) 2013 Peter Meerwald <pmeerw@pmeerw.net> + * + * This file is subject to the terms and conditions of version 2 of + * the GNU General Public License. See the file COPYING in the main + * directory of this archive for more details. + * + * Color light sensor with 16-bit channels for red, green, blue, clear); + * 7-bit I2C slave address 0x39 (TCS34721, TCS34723) or 0x29 (TCS34725, + * TCS34727) + * + * TODO: interrupt support, thresholds, wait time + */ + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/delay.h> +#include <linux/pm.h> + +#include <linux/iio/iio.h> +#include <linux/iio/sysfs.h> +#include <linux/iio/trigger_consumer.h> +#include <linux/iio/buffer.h> +#include <linux/iio/triggered_buffer.h> + +#define TCS3472_DRV_NAME "tcs3472" + +#define TCS3472_COMMAND BIT(7) +#define TCS3472_AUTO_INCR BIT(5) + +#define TCS3472_ENABLE (TCS3472_COMMAND | 0x00) +#define TCS3472_ATIME (TCS3472_COMMAND | 0x01) +#define TCS3472_WTIME (TCS3472_COMMAND | 0x03) +#define TCS3472_AILT (TCS3472_COMMAND | 0x04) +#define TCS3472_AIHT (TCS3472_COMMAND | 0x06) +#define TCS3472_PERS (TCS3472_COMMAND | 0x0c) +#define TCS3472_CONFIG (TCS3472_COMMAND | 0x0d) +#define TCS3472_CONTROL (TCS3472_COMMAND | 0x0f) +#define TCS3472_ID (TCS3472_COMMAND | 0x12) +#define TCS3472_STATUS (TCS3472_COMMAND | 0x13) +#define TCS3472_CDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x14) +#define TCS3472_RDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x16) +#define TCS3472_GDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x18) +#define TCS3472_BDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x1a) + +#define TCS3472_STATUS_AVALID BIT(0) +#define TCS3472_ENABLE_AEN BIT(1) +#define TCS3472_ENABLE_PON BIT(0) +#define TCS3472_CONTROL_AGAIN_MASK (BIT(0) | BIT(1)) + +struct tcs3472_data { + struct i2c_client *client; + u8 enable; + u8 control; + u8 atime; + u16 buffer[8]; /* 4 16-bit channels + 64-bit timestamp */ +}; + +#define TCS3472_CHANNEL(_color, _si, _addr) { \ + .type = IIO_INTENSITY, \ + .modified = 1, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_CALIBSCALE) | \ + BIT(IIO_CHAN_INFO_INT_TIME), \ + .channel2 = IIO_MOD_LIGHT_##_color, \ + .address = _addr, \ + .scan_index = _si, \ + .scan_type = IIO_ST('u', 16, 16, 0), \ +} + +static const int tcs3472_agains[] = { 1, 4, 16, 60 }; + +static const struct iio_chan_spec tcs3472_channels[] = { + TCS3472_CHANNEL(CLEAR, 0, TCS3472_CDATA), + TCS3472_CHANNEL(RED, 1, TCS3472_RDATA), + TCS3472_CHANNEL(GREEN, 2, TCS3472_GDATA), + TCS3472_CHANNEL(BLUE, 3, TCS3472_BDATA), + IIO_CHAN_SOFT_TIMESTAMP(4), +}; + +static int tcs3472_req_data(struct tcs3472_data *data) +{ + int tries = 50; + int ret; + + while (tries--) { + ret = i2c_smbus_read_byte_data(data->client, TCS3472_STATUS); + if (ret < 0) + return ret; + if (ret & TCS3472_STATUS_AVALID) + break; + msleep(20); + } + + if (tries < 0) { + dev_err(&data->client->dev, "data not ready\n"); + return -EIO; + } + + return 0; +} + +static int tcs3472_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct tcs3472_data *data = iio_priv(indio_dev); + int ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = tcs3472_req_data(data); + if (ret < 0) + return ret; + ret = i2c_smbus_read_word_data(data->client, chan->address); + if (ret < 0) + return ret; + *val = ret; + return IIO_VAL_INT; + case IIO_CHAN_INFO_CALIBSCALE: + *val = tcs3472_agains[data->control & + TCS3472_CONTROL_AGAIN_MASK]; + return IIO_VAL_INT; + case IIO_CHAN_INFO_INT_TIME: + *val = 0; + *val2 = (256 - data->atime) * 2400; + return IIO_VAL_INT_PLUS_MICRO; + } + return -EINVAL; +} + +static int tcs3472_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct tcs3472_data *data = iio_priv(indio_dev); + int i; + + switch (mask) { + case IIO_CHAN_INFO_CALIBSCALE: + if (val2 != 0) + return -EINVAL; + for (i = 0; i < ARRAY_SIZE(tcs3472_agains); i++) { + if (val == tcs3472_agains[i]) { + data->control &= ~TCS3472_CONTROL_AGAIN_MASK; + data->control |= i; + return i2c_smbus_write_byte_data( + data->client, TCS3472_CONTROL, + data->control); + } + } + return -EINVAL; + case IIO_CHAN_INFO_INT_TIME: + if (val != 0) + return -EINVAL; + for (i = 0; i < 256; i++) { + if (val2 == (256 - i) * 2400) { + data->atime = i; + return i2c_smbus_write_word_data( + data->client, TCS3472_ATIME, + data->atime); + } + + } + return -EINVAL; + } + return -EINVAL; +} + +static irqreturn_t tcs3472_trigger_handler(int irq, void *p) +{ + struct iio_poll_func *pf = p; + struct iio_dev *indio_dev = pf->indio_dev; + struct tcs3472_data *data = iio_priv(indio_dev); + int len = 0; + int i, j = 0; + + int ret = tcs3472_req_data(data); + if (ret < 0) + goto done; + + for_each_set_bit(i, indio_dev->active_scan_mask, + indio_dev->masklength) { + ret = i2c_smbus_read_word_data(data->client, + TCS3472_CDATA + 2*i); + if (ret < 0) + goto done; + + data->buffer[j++] = ret; + len += 2; + } + + iio_push_to_buffers_with_timestamp(indio_dev, data->buffer, + iio_get_time_ns()); + +done: + iio_trigger_notify_done(indio_dev->trig); + + return IRQ_HANDLED; +} + +static ssize_t tcs3472_show_int_time_available(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + size_t len = 0; + int i; + + for (i = 1; i <= 256; i++) + len += scnprintf(buf + len, PAGE_SIZE - len, "0.%06d ", + 2400 * i); + + /* replace trailing space by newline */ + buf[len - 1] = '\n'; + + return len; +} + +static IIO_CONST_ATTR(calibscale_available, "1 4 16 60"); +static IIO_DEV_ATTR_INT_TIME_AVAIL(tcs3472_show_int_time_available); + +static struct attribute *tcs3472_attributes[] = { + &iio_const_attr_calibscale_available.dev_attr.attr, + &iio_dev_attr_integration_time_available.dev_attr.attr, + NULL +}; + +static const struct attribute_group tcs3472_attribute_group = { + .attrs = tcs3472_attributes, +}; + +static const struct iio_info tcs3472_info = { + .read_raw = tcs3472_read_raw, + .write_raw = tcs3472_write_raw, + .attrs = &tcs3472_attribute_group, + .driver_module = THIS_MODULE, +}; + +static int tcs3472_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct tcs3472_data *data; + struct iio_dev *indio_dev; + int ret; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + if (indio_dev == NULL) + return -ENOMEM; + + data = iio_priv(indio_dev); + i2c_set_clientdata(client, indio_dev); + data->client = client; + + indio_dev->dev.parent = &client->dev; + indio_dev->info = &tcs3472_info; + indio_dev->name = TCS3472_DRV_NAME; + indio_dev->channels = tcs3472_channels; + indio_dev->num_channels = ARRAY_SIZE(tcs3472_channels); + indio_dev->modes = INDIO_DIRECT_MODE; + + ret = i2c_smbus_read_byte_data(data->client, TCS3472_ID); + if (ret < 0) + return ret; + + if (ret == 0x44) + dev_info(&client->dev, "TCS34721/34725 found\n"); + else if (ret == 0x4d) + dev_info(&client->dev, "TCS34723/34727 found\n"); + else + return -ENODEV; + + ret = i2c_smbus_read_byte_data(data->client, TCS3472_CONTROL); + if (ret < 0) + return ret; + data->control = ret; + + ret = i2c_smbus_read_byte_data(data->client, TCS3472_ATIME); + if (ret < 0) + return ret; + data->atime = ret; + + ret = i2c_smbus_read_byte_data(data->client, TCS3472_ENABLE); + if (ret < 0) + return ret; + + /* enable device */ + data->enable = ret | TCS3472_ENABLE_PON | TCS3472_ENABLE_AEN; + ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE, + data->enable); + if (ret < 0) + return ret; + + ret = iio_triggered_buffer_setup(indio_dev, NULL, + tcs3472_trigger_handler, NULL); + if (ret < 0) + return ret; + + ret = iio_device_register(indio_dev); + if (ret < 0) + goto buffer_cleanup; + + return 0; + +buffer_cleanup: + iio_triggered_buffer_cleanup(indio_dev); + return ret; +} + +static int tcs3472_powerdown(struct tcs3472_data *data) +{ + return i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE, + data->enable & ~(TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON)); +} + +static int tcs3472_remove(struct i2c_client *client) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(client); + + iio_device_unregister(indio_dev); + iio_triggered_buffer_cleanup(indio_dev); + tcs3472_powerdown(iio_priv(indio_dev)); + + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int tcs3472_suspend(struct device *dev) +{ + struct tcs3472_data *data = iio_priv(i2c_get_clientdata( + to_i2c_client(dev))); + return tcs3472_powerdown(data); +} + +static int tcs3472_resume(struct device *dev) +{ + struct tcs3472_data *data = iio_priv(i2c_get_clientdata( + to_i2c_client(dev))); + return i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE, + data->enable | (TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON)); +} +#endif + +static SIMPLE_DEV_PM_OPS(tcs3472_pm_ops, tcs3472_suspend, tcs3472_resume); + +static const struct i2c_device_id tcs3472_id[] = { + { "tcs3472", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, tcs3472_id); + +static struct i2c_driver tcs3472_driver = { + .driver = { + .name = TCS3472_DRV_NAME, + .pm = &tcs3472_pm_ops, + .owner = THIS_MODULE, + }, + .probe = tcs3472_probe, + .remove = tcs3472_remove, + .id_table = tcs3472_id, +}; +module_i2c_driver(tcs3472_driver); + +MODULE_AUTHOR("Peter Meerwald <pmeerw@pmeerw.net>"); +MODULE_DESCRIPTION("TCS3472 color light sensors driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/iio/light/tsl4531.c b/drivers/iio/light/tsl4531.c new file mode 100644 index 0000000..a15006e --- /dev/null +++ b/drivers/iio/light/tsl4531.c @@ -0,0 +1,258 @@ +/* + * tsl4531.c - Support for TAOS TSL4531 ambient light sensor + * + * Copyright 2013 Peter Meerwald <pmeerw@pmeerw.net> + * + * This file is subject to the terms and conditions of version 2 of + * the GNU General Public License. See the file COPYING in the main + * directory of this archive for more details. + * + * IIO driver for the TSL4531x family + * TSL45311/TSL45313: 7-bit I2C slave address 0x39 + * TSL45315/TSL45317: 7-bit I2C slave address 0x29 + * + * TODO: single cycle measurement + */ + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/err.h> +#include <linux/delay.h> + +#include <linux/iio/iio.h> +#include <linux/iio/sysfs.h> + +#define TSL4531_DRV_NAME "tsl4531" + +#define TCS3472_COMMAND BIT(7) + +#define TSL4531_CONTROL (TCS3472_COMMAND | 0x00) +#define TSL4531_CONFIG (TCS3472_COMMAND | 0x01) +#define TSL4531_DATA (TCS3472_COMMAND | 0x04) +#define TSL4531_ID (TCS3472_COMMAND | 0x0a) + +/* operating modes in control register */ +#define TSL4531_MODE_POWERDOWN 0x00 +#define TSL4531_MODE_SINGLE_ADC 0x02 +#define TSL4531_MODE_NORMAL 0x03 + +/* integration time control in config register */ +#define TSL4531_TCNTRL_400MS 0x00 +#define TSL4531_TCNTRL_200MS 0x01 +#define TSL4531_TCNTRL_100MS 0x02 + +/* part number in id register */ +#define TSL45311_ID 0x8 +#define TSL45313_ID 0x9 +#define TSL45315_ID 0xa +#define TSL45317_ID 0xb +#define TSL4531_ID_SHIFT 4 + +struct tsl4531_data { + struct i2c_client *client; + struct mutex lock; + int int_time; +}; + +static IIO_CONST_ATTR_INT_TIME_AVAIL("0.1 0.2 0.4"); + +static struct attribute *tsl4531_attributes[] = { + &iio_const_attr_integration_time_available.dev_attr.attr, + NULL +}; + +static const struct attribute_group tsl4531_attribute_group = { + .attrs = tsl4531_attributes, +}; + +static const struct iio_chan_spec tsl4531_channels[] = { + { + .type = IIO_LIGHT, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_INT_TIME) + } +}; + +static int tsl4531_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct tsl4531_data *data = iio_priv(indio_dev); + int ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = i2c_smbus_read_word_data(data->client, + TSL4531_DATA); + if (ret < 0) + return ret; + *val = ret; + return IIO_VAL_INT; + case IIO_CHAN_INFO_SCALE: + /* 0.. 1x, 1 .. 2x, 2 .. 4x */ + *val = 1 << data->int_time; + return IIO_VAL_INT; + case IIO_CHAN_INFO_INT_TIME: + if (data->int_time == 0) + *val2 = 400000; + else if (data->int_time == 1) + *val2 = 200000; + else if (data->int_time == 2) + *val2 = 100000; + else + return -EINVAL; + *val = 0; + return IIO_VAL_INT_PLUS_MICRO; + default: + return -EINVAL; + } +} + +static int tsl4531_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct tsl4531_data *data = iio_priv(indio_dev); + int int_time, ret; + + switch (mask) { + case IIO_CHAN_INFO_INT_TIME: + if (val != 0) + return -EINVAL; + if (val2 == 400000) + int_time = 0; + else if (val2 == 200000) + int_time = 1; + else if (val2 == 100000) + int_time = 2; + else + return -EINVAL; + mutex_lock(&data->lock); + ret = i2c_smbus_write_byte_data(data->client, + TSL4531_CONFIG, int_time); + if (ret >= 0) + data->int_time = int_time; + mutex_unlock(&data->lock); + return ret; + default: + return -EINVAL; + } +} + +static const struct iio_info tsl4531_info = { + .read_raw = tsl4531_read_raw, + .write_raw = tsl4531_write_raw, + .attrs = &tsl4531_attribute_group, + .driver_module = THIS_MODULE, +}; + +static int tsl4531_check_id(struct i2c_client *client) +{ + int ret = i2c_smbus_read_byte_data(client, TSL4531_ID); + if (ret < 0) + return ret; + + switch (ret >> TSL4531_ID_SHIFT) { + case TSL45311_ID: + case TSL45313_ID: + case TSL45315_ID: + case TSL45317_ID: + return 1; + default: + return 0; + } +} + +static int tsl4531_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct tsl4531_data *data; + struct iio_dev *indio_dev; + int ret; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + data = iio_priv(indio_dev); + i2c_set_clientdata(client, indio_dev); + data->client = client; + mutex_init(&data->lock); + + if (!tsl4531_check_id(client)) { + dev_err(&client->dev, "no TSL4531 sensor\n"); + return -ENODEV; + } + + ret = i2c_smbus_write_byte_data(data->client, TSL4531_CONTROL, + TSL4531_MODE_NORMAL); + if (ret < 0) + return ret; + + ret = i2c_smbus_write_byte_data(data->client, TSL4531_CONFIG, + TSL4531_TCNTRL_400MS); + if (ret < 0) + return ret; + + indio_dev->dev.parent = &client->dev; + indio_dev->info = &tsl4531_info; + indio_dev->channels = tsl4531_channels; + indio_dev->num_channels = ARRAY_SIZE(tsl4531_channels); + indio_dev->name = TSL4531_DRV_NAME; + indio_dev->modes = INDIO_DIRECT_MODE; + + return iio_device_register(indio_dev); +} + +static int tsl4531_powerdown(struct i2c_client *client) +{ + return i2c_smbus_write_byte_data(client, TSL4531_CONTROL, + TSL4531_MODE_POWERDOWN); +} + +static int tsl4531_remove(struct i2c_client *client) +{ + iio_device_unregister(i2c_get_clientdata(client)); + tsl4531_powerdown(client); + + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int tsl4531_suspend(struct device *dev) +{ + return tsl4531_powerdown(to_i2c_client(dev)); +} + +static int tsl4531_resume(struct device *dev) +{ + return i2c_smbus_write_byte_data(to_i2c_client(dev), TSL4531_CONTROL, + TSL4531_MODE_NORMAL); +} +#endif + +static SIMPLE_DEV_PM_OPS(tsl4531_pm_ops, tsl4531_suspend, tsl4531_resume); + +static const struct i2c_device_id tsl4531_id[] = { + { "tsl4531", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, tsl4531_id); + +static struct i2c_driver tsl4531_driver = { + .driver = { + .name = TSL4531_DRV_NAME, + .pm = &tsl4531_pm_ops, + .owner = THIS_MODULE, + }, + .probe = tsl4531_probe, + .remove = tsl4531_remove, + .id_table = tsl4531_id, +}; + +module_i2c_driver(tsl4531_driver); + +MODULE_AUTHOR("Peter Meerwald <pmeerw@pmeerw.net>"); +MODULE_DESCRIPTION("TAOS TSL4531 ambient light sensors driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c index a98460b..2634920 100644 --- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c +++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c @@ -183,10 +183,11 @@ static const struct iio_info magn_3d_info = { }; /* Function to push data to buffer */ -static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len) +static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data, + int len) { dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n"); - iio_push_to_buffers(indio_dev, (u8 *)data); + iio_push_to_buffers(indio_dev, data); } /* Callback handler to send event after all samples are received and captured */ @@ -201,7 +202,7 @@ static int magn_3d_proc_event(struct hid_sensor_hub_device *hsdev, magn_state->common_attributes.data_ready); if (magn_state->common_attributes.data_ready) hid_sensor_push_data(indio_dev, - (u8 *)magn_state->magn_val, + magn_state->magn_val, sizeof(magn_state->magn_val)); return 0; diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c index e8d2849..82461ef 100644 --- a/drivers/iio/magnetometer/st_magn_core.c +++ b/drivers/iio/magnetometer/st_magn_core.c @@ -348,8 +348,9 @@ static const struct iio_info magn_info = { int st_magn_common_probe(struct iio_dev *indio_dev, struct st_sensors_platform_data *pdata) { - int err; struct st_sensor_data *mdata = iio_priv(indio_dev); + int irq = mdata->get_irq_data_ready(indio_dev); + int err; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &magn_info; @@ -357,7 +358,7 @@ int st_magn_common_probe(struct iio_dev *indio_dev, err = st_sensors_check_device_support(indio_dev, ARRAY_SIZE(st_magn_sensors), st_magn_sensors); if (err < 0) - goto st_magn_common_probe_error; + return err; mdata->num_data_channels = ST_MAGN_NUMBER_DATA_CHANNELS; mdata->multiread_bit = mdata->sensor->multi_read_bit; @@ -370,12 +371,13 @@ int st_magn_common_probe(struct iio_dev *indio_dev, err = st_sensors_init_sensor(indio_dev, pdata); if (err < 0) - goto st_magn_common_probe_error; + return err; - if (mdata->get_irq_data_ready(indio_dev) > 0) { - err = st_magn_allocate_ring(indio_dev); - if (err < 0) - goto st_magn_common_probe_error; + err = st_magn_allocate_ring(indio_dev); + if (err < 0) + return err; + + if (irq > 0) { err = st_sensors_allocate_trigger(indio_dev, NULL); if (err < 0) goto st_magn_probe_trigger_error; @@ -385,15 +387,14 @@ int st_magn_common_probe(struct iio_dev *indio_dev, if (err) goto st_magn_device_register_error; - return err; + return 0; st_magn_device_register_error: - if (mdata->get_irq_data_ready(indio_dev) > 0) + if (irq > 0) st_sensors_deallocate_trigger(indio_dev); st_magn_probe_trigger_error: - if (mdata->get_irq_data_ready(indio_dev) > 0) - st_magn_deallocate_ring(indio_dev); -st_magn_common_probe_error: + st_magn_deallocate_ring(indio_dev); + return err; } EXPORT_SYMBOL(st_magn_common_probe); @@ -403,10 +404,10 @@ void st_magn_common_remove(struct iio_dev *indio_dev) struct st_sensor_data *mdata = iio_priv(indio_dev); iio_device_unregister(indio_dev); - if (mdata->get_irq_data_ready(indio_dev) > 0) { + if (mdata->get_irq_data_ready(indio_dev) > 0) st_sensors_deallocate_trigger(indio_dev); - st_magn_deallocate_ring(indio_dev); - } + + st_magn_deallocate_ring(indio_dev); } EXPORT_SYMBOL(st_magn_common_remove); diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h index b0b6306..049c21a 100644 --- a/drivers/iio/pressure/st_pressure.h +++ b/drivers/iio/pressure/st_pressure.h @@ -14,6 +14,7 @@ #include <linux/types.h> #include <linux/iio/common/st_sensors.h> +#define LPS001WP_PRESS_DEV_NAME "lps001wp" #define LPS331AP_PRESS_DEV_NAME "lps331ap" /** diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c index ceebd3c..2da411b 100644 --- a/drivers/iio/pressure/st_pressure_core.c +++ b/drivers/iio/pressure/st_pressure_core.c @@ -36,94 +36,200 @@ ST_PRESS_LSB_PER_CELSIUS) #define ST_PRESS_NUMBER_DATA_CHANNELS 1 -/* DEFAULT VALUE FOR SENSORS */ -#define ST_PRESS_DEFAULT_OUT_XL_ADDR 0x28 -#define ST_TEMP_DEFAULT_OUT_L_ADDR 0x2b - /* FULLSCALE */ #define ST_PRESS_FS_AVL_1260MB 1260 -/* CUSTOM VALUES FOR SENSOR 1 */ -#define ST_PRESS_1_WAI_EXP 0xbb -#define ST_PRESS_1_ODR_ADDR 0x20 -#define ST_PRESS_1_ODR_MASK 0x70 -#define ST_PRESS_1_ODR_AVL_1HZ_VAL 0x01 -#define ST_PRESS_1_ODR_AVL_7HZ_VAL 0x05 -#define ST_PRESS_1_ODR_AVL_13HZ_VAL 0x06 -#define ST_PRESS_1_ODR_AVL_25HZ_VAL 0x07 -#define ST_PRESS_1_PW_ADDR 0x20 -#define ST_PRESS_1_PW_MASK 0x80 -#define ST_PRESS_1_FS_ADDR 0x23 -#define ST_PRESS_1_FS_MASK 0x30 -#define ST_PRESS_1_FS_AVL_1260_VAL 0x00 -#define ST_PRESS_1_FS_AVL_1260_GAIN ST_PRESS_KPASCAL_NANO_SCALE -#define ST_PRESS_1_FS_AVL_TEMP_GAIN ST_PRESS_CELSIUS_NANO_SCALE -#define ST_PRESS_1_BDU_ADDR 0x20 -#define ST_PRESS_1_BDU_MASK 0x04 -#define ST_PRESS_1_DRDY_IRQ_ADDR 0x22 -#define ST_PRESS_1_DRDY_IRQ_INT1_MASK 0x04 -#define ST_PRESS_1_DRDY_IRQ_INT2_MASK 0x20 -#define ST_PRESS_1_MULTIREAD_BIT true -#define ST_PRESS_1_TEMP_OFFSET 42500 - -static const struct iio_chan_spec st_press_channels[] = { - ST_SENSORS_LSM_CHANNELS(IIO_PRESSURE, +/* CUSTOM VALUES FOR LPS331AP SENSOR */ +#define ST_PRESS_LPS331AP_WAI_EXP 0xbb +#define ST_PRESS_LPS331AP_ODR_ADDR 0x20 +#define ST_PRESS_LPS331AP_ODR_MASK 0x70 +#define ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL 0x01 +#define ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL 0x05 +#define ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL 0x06 +#define ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL 0x07 +#define ST_PRESS_LPS331AP_PW_ADDR 0x20 +#define ST_PRESS_LPS331AP_PW_MASK 0x80 +#define ST_PRESS_LPS331AP_FS_ADDR 0x23 +#define ST_PRESS_LPS331AP_FS_MASK 0x30 +#define ST_PRESS_LPS331AP_FS_AVL_1260_VAL 0x00 +#define ST_PRESS_LPS331AP_FS_AVL_1260_GAIN ST_PRESS_KPASCAL_NANO_SCALE +#define ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN ST_PRESS_CELSIUS_NANO_SCALE +#define ST_PRESS_LPS331AP_BDU_ADDR 0x20 +#define ST_PRESS_LPS331AP_BDU_MASK 0x04 +#define ST_PRESS_LPS331AP_DRDY_IRQ_ADDR 0x22 +#define ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK 0x04 +#define ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK 0x20 +#define ST_PRESS_LPS331AP_MULTIREAD_BIT true +#define ST_PRESS_LPS331AP_TEMP_OFFSET 42500 +#define ST_PRESS_LPS331AP_OUT_XL_ADDR 0x28 +#define ST_TEMP_LPS331AP_OUT_L_ADDR 0x2b + +/* CUSTOM VALUES FOR LPS001WP SENSOR */ +#define ST_PRESS_LPS001WP_WAI_EXP 0xba +#define ST_PRESS_LPS001WP_ODR_ADDR 0x20 +#define ST_PRESS_LPS001WP_ODR_MASK 0x30 +#define ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL 0x01 +#define ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL 0x02 +#define ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL 0x03 +#define ST_PRESS_LPS001WP_PW_ADDR 0x20 +#define ST_PRESS_LPS001WP_PW_MASK 0x40 +#define ST_PRESS_LPS001WP_BDU_ADDR 0x20 +#define ST_PRESS_LPS001WP_BDU_MASK 0x04 +#define ST_PRESS_LPS001WP_MULTIREAD_BIT true +#define ST_PRESS_LPS001WP_OUT_L_ADDR 0x28 +#define ST_TEMP_LPS001WP_OUT_L_ADDR 0x2a + +static const struct iio_chan_spec st_press_lps331ap_channels[] = { + { + .type = IIO_PRESSURE, + .channel2 = IIO_NO_MOD, + .address = ST_PRESS_LPS331AP_OUT_XL_ADDR, + .scan_index = ST_SENSORS_SCAN_X, + .scan_type = { + .sign = 'u', + .realbits = 24, + .storagebits = 24, + .endianness = IIO_LE, + }, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), - ST_SENSORS_SCAN_X, 0, IIO_NO_MOD, 'u', IIO_LE, 24, 24, - ST_PRESS_DEFAULT_OUT_XL_ADDR), - ST_SENSORS_LSM_CHANNELS(IIO_TEMP, - BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE) | - BIT(IIO_CHAN_INFO_OFFSET), - -1, 0, IIO_NO_MOD, 's', IIO_LE, 16, 16, - ST_TEMP_DEFAULT_OUT_L_ADDR), + .modified = 0, + }, + { + .type = IIO_TEMP, + .channel2 = IIO_NO_MOD, + .address = ST_TEMP_LPS331AP_OUT_L_ADDR, + .scan_index = -1, + .scan_type = { + .sign = 'u', + .realbits = 16, + .storagebits = 16, + .endianness = IIO_LE, + }, + .info_mask_separate = + BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_OFFSET), + .modified = 0, + }, + IIO_CHAN_SOFT_TIMESTAMP(1) +}; + +static const struct iio_chan_spec st_press_lps001wp_channels[] = { + { + .type = IIO_PRESSURE, + .channel2 = IIO_NO_MOD, + .address = ST_PRESS_LPS001WP_OUT_L_ADDR, + .scan_index = ST_SENSORS_SCAN_X, + .scan_type = { + .sign = 'u', + .realbits = 16, + .storagebits = 16, + .endianness = IIO_LE, + }, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .modified = 0, + }, + { + .type = IIO_TEMP, + .channel2 = IIO_NO_MOD, + .address = ST_TEMP_LPS001WP_OUT_L_ADDR, + .scan_index = -1, + .scan_type = { + .sign = 'u', + .realbits = 16, + .storagebits = 16, + .endianness = IIO_LE, + }, + .info_mask_separate = + BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_OFFSET), + .modified = 0, + }, IIO_CHAN_SOFT_TIMESTAMP(1) }; static const struct st_sensors st_press_sensors[] = { { - .wai = ST_PRESS_1_WAI_EXP, + .wai = ST_PRESS_LPS331AP_WAI_EXP, .sensors_supported = { [0] = LPS331AP_PRESS_DEV_NAME, }, - .ch = (struct iio_chan_spec *)st_press_channels, + .ch = (struct iio_chan_spec *)st_press_lps331ap_channels, + .num_ch = ARRAY_SIZE(st_press_lps331ap_channels), .odr = { - .addr = ST_PRESS_1_ODR_ADDR, - .mask = ST_PRESS_1_ODR_MASK, + .addr = ST_PRESS_LPS331AP_ODR_ADDR, + .mask = ST_PRESS_LPS331AP_ODR_MASK, .odr_avl = { - { 1, ST_PRESS_1_ODR_AVL_1HZ_VAL, }, - { 7, ST_PRESS_1_ODR_AVL_7HZ_VAL, }, - { 13, ST_PRESS_1_ODR_AVL_13HZ_VAL, }, - { 25, ST_PRESS_1_ODR_AVL_25HZ_VAL, }, + { 1, ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL, }, + { 7, ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL, }, + { 13, ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL, }, + { 25, ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL, }, }, }, .pw = { - .addr = ST_PRESS_1_PW_ADDR, - .mask = ST_PRESS_1_PW_MASK, + .addr = ST_PRESS_LPS331AP_PW_ADDR, + .mask = ST_PRESS_LPS331AP_PW_MASK, .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE, .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, }, .fs = { - .addr = ST_PRESS_1_FS_ADDR, - .mask = ST_PRESS_1_FS_MASK, + .addr = ST_PRESS_LPS331AP_FS_ADDR, + .mask = ST_PRESS_LPS331AP_FS_MASK, .fs_avl = { [0] = { .num = ST_PRESS_FS_AVL_1260MB, - .value = ST_PRESS_1_FS_AVL_1260_VAL, - .gain = ST_PRESS_1_FS_AVL_1260_GAIN, - .gain2 = ST_PRESS_1_FS_AVL_TEMP_GAIN, + .value = ST_PRESS_LPS331AP_FS_AVL_1260_VAL, + .gain = ST_PRESS_LPS331AP_FS_AVL_1260_GAIN, + .gain2 = ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN, }, }, }, .bdu = { - .addr = ST_PRESS_1_BDU_ADDR, - .mask = ST_PRESS_1_BDU_MASK, + .addr = ST_PRESS_LPS331AP_BDU_ADDR, + .mask = ST_PRESS_LPS331AP_BDU_MASK, + }, + .drdy_irq = { + .addr = ST_PRESS_LPS331AP_DRDY_IRQ_ADDR, + .mask_int1 = ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK, + .mask_int2 = ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK, + }, + .multi_read_bit = ST_PRESS_LPS331AP_MULTIREAD_BIT, + .bootime = 2, + }, + { + .wai = ST_PRESS_LPS001WP_WAI_EXP, + .sensors_supported = { + [0] = LPS001WP_PRESS_DEV_NAME, + }, + .ch = (struct iio_chan_spec *)st_press_lps001wp_channels, + .num_ch = ARRAY_SIZE(st_press_lps001wp_channels), + .odr = { + .addr = ST_PRESS_LPS001WP_ODR_ADDR, + .mask = ST_PRESS_LPS001WP_ODR_MASK, + .odr_avl = { + { 1, ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL, }, + { 7, ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL, }, + { 13, ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL, }, + }, + }, + .pw = { + .addr = ST_PRESS_LPS001WP_PW_ADDR, + .mask = ST_PRESS_LPS001WP_PW_MASK, + .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE, + .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, + }, + .fs = { + .addr = 0, + }, + .bdu = { + .addr = ST_PRESS_LPS001WP_BDU_ADDR, + .mask = ST_PRESS_LPS001WP_BDU_MASK, }, .drdy_irq = { - .addr = ST_PRESS_1_DRDY_IRQ_ADDR, - .mask_int1 = ST_PRESS_1_DRDY_IRQ_INT1_MASK, - .mask_int2 = ST_PRESS_1_DRDY_IRQ_INT2_MASK, + .addr = 0, }, - .multi_read_bit = ST_PRESS_1_MULTIREAD_BIT, + .multi_read_bit = ST_PRESS_LPS001WP_MULTIREAD_BIT, .bootime = 2, }, }; @@ -210,41 +316,46 @@ static const struct iio_trigger_ops st_press_trigger_ops = { int st_press_common_probe(struct iio_dev *indio_dev, struct st_sensors_platform_data *plat_data) { - int err; struct st_sensor_data *pdata = iio_priv(indio_dev); + int irq = pdata->get_irq_data_ready(indio_dev); + int err; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &press_info; err = st_sensors_check_device_support(indio_dev, - ARRAY_SIZE(st_press_sensors), st_press_sensors); + ARRAY_SIZE(st_press_sensors), + st_press_sensors); if (err < 0) - goto st_press_common_probe_error; + return err; pdata->num_data_channels = ST_PRESS_NUMBER_DATA_CHANNELS; - pdata->multiread_bit = pdata->sensor->multi_read_bit; - indio_dev->channels = pdata->sensor->ch; - indio_dev->num_channels = ARRAY_SIZE(st_press_channels); + pdata->multiread_bit = pdata->sensor->multi_read_bit; + indio_dev->channels = pdata->sensor->ch; + indio_dev->num_channels = pdata->sensor->num_ch; + + if (pdata->sensor->fs.addr != 0) + pdata->current_fullscale = (struct st_sensor_fullscale_avl *) + &pdata->sensor->fs.fs_avl[0]; - pdata->current_fullscale = (struct st_sensor_fullscale_avl *) - &pdata->sensor->fs.fs_avl[0]; pdata->odr = pdata->sensor->odr.odr_avl[0].hz; - if (!plat_data) + /* Some devices don't support a data ready pin. */ + if (!plat_data && pdata->sensor->drdy_irq.addr) plat_data = (struct st_sensors_platform_data *)&default_press_pdata; err = st_sensors_init_sensor(indio_dev, plat_data); if (err < 0) - goto st_press_common_probe_error; + return err; - if (pdata->get_irq_data_ready(indio_dev) > 0) { - err = st_press_allocate_ring(indio_dev); - if (err < 0) - goto st_press_common_probe_error; + err = st_press_allocate_ring(indio_dev); + if (err < 0) + return err; + if (irq > 0) { err = st_sensors_allocate_trigger(indio_dev, - ST_PRESS_TRIGGER_OPS); + ST_PRESS_TRIGGER_OPS); if (err < 0) goto st_press_probe_trigger_error; } @@ -256,12 +367,11 @@ int st_press_common_probe(struct iio_dev *indio_dev, return err; st_press_device_register_error: - if (pdata->get_irq_data_ready(indio_dev) > 0) + if (irq > 0) st_sensors_deallocate_trigger(indio_dev); st_press_probe_trigger_error: - if (pdata->get_irq_data_ready(indio_dev) > 0) - st_press_deallocate_ring(indio_dev); -st_press_common_probe_error: + st_press_deallocate_ring(indio_dev); + return err; } EXPORT_SYMBOL(st_press_common_probe); @@ -271,10 +381,10 @@ void st_press_common_remove(struct iio_dev *indio_dev) struct st_sensor_data *pdata = iio_priv(indio_dev); iio_device_unregister(indio_dev); - if (pdata->get_irq_data_ready(indio_dev) > 0) { + if (pdata->get_irq_data_ready(indio_dev) > 0) st_sensors_deallocate_trigger(indio_dev); - st_press_deallocate_ring(indio_dev); - } + + st_press_deallocate_ring(indio_dev); } EXPORT_SYMBOL(st_press_common_remove); diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c index 08aac5e..51eab7f 100644 --- a/drivers/iio/pressure/st_pressure_i2c.c +++ b/drivers/iio/pressure/st_pressure_i2c.c @@ -49,6 +49,7 @@ static int st_press_i2c_remove(struct i2c_client *client) } static const struct i2c_device_id st_press_id_table[] = { + { LPS001WP_PRESS_DEV_NAME }, { LPS331AP_PRESS_DEV_NAME }, {}, }; diff --git a/drivers/iio/temperature/tmp006.c b/drivers/iio/temperature/tmp006.c index 64ccde3..4e95097 100644 --- a/drivers/iio/temperature/tmp006.c +++ b/drivers/iio/temperature/tmp006.c @@ -70,12 +70,16 @@ static int tmp006_read_measurement(struct tmp006_data *data, u8 reg) return i2c_smbus_read_word_swapped(data->client, reg); } +static const int tmp006_freqs[5][2] = { {4, 0}, {2, 0}, {1, 0}, + {0, 500000}, {0, 250000} }; + static int tmp006_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *channel, int *val, int *val2, long mask) { struct tmp006_data *data = iio_priv(indio_dev); s32 ret; + int cr; switch (mask) { case IIO_CHAN_INFO_RAW: @@ -106,6 +110,12 @@ static int tmp006_read_raw(struct iio_dev *indio_dev, break; } return IIO_VAL_INT_PLUS_MICRO; + case IIO_CHAN_INFO_SAMP_FREQ: + cr = (data->config & TMP006_CONFIG_CR_MASK) + >> TMP006_CONFIG_CR_SHIFT; + *val = tmp006_freqs[cr][0]; + *val2 = tmp006_freqs[cr][1]; + return IIO_VAL_INT_PLUS_MICRO; default: break; } @@ -113,48 +123,32 @@ static int tmp006_read_raw(struct iio_dev *indio_dev, return -EINVAL; } -static const char * const tmp006_freqs[] = { "4", "2", "1", "0.5", "0.25" }; - -static ssize_t tmp006_show_freq(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct tmp006_data *data = iio_priv(dev_to_iio_dev(dev)); - int cr = (data->config & TMP006_CONFIG_CR_MASK) - >> TMP006_CONFIG_CR_SHIFT; - return sprintf(buf, "%s\n", tmp006_freqs[cr]); -} - -static ssize_t tmp006_store_freq(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) +static int tmp006_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, + int val2, + long mask) { - struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct tmp006_data *data = iio_priv(indio_dev); int i; - bool found = false; for (i = 0; i < ARRAY_SIZE(tmp006_freqs); i++) - if (sysfs_streq(buf, tmp006_freqs[i])) { - found = true; - break; - } - if (!found) - return -EINVAL; + if ((val == tmp006_freqs[i][0]) && + (val2 == tmp006_freqs[i][1])) { + data->config &= ~TMP006_CONFIG_CR_MASK; + data->config |= i << TMP006_CONFIG_CR_SHIFT; - data->config &= ~TMP006_CONFIG_CR_MASK; - data->config |= i << TMP006_CONFIG_CR_SHIFT; + return i2c_smbus_write_word_swapped(data->client, + TMP006_CONFIG, + data->config); - return i2c_smbus_write_word_swapped(data->client, TMP006_CONFIG, - data->config); + } + return -EINVAL; } -static IIO_DEV_ATTR_SAMP_FREQ(S_IRUGO | S_IWUSR, - tmp006_show_freq, tmp006_store_freq); - static IIO_CONST_ATTR(sampling_frequency_available, "4 2 1 0.5 0.25"); static struct attribute *tmp006_attributes[] = { - &iio_dev_attr_sampling_frequency.dev_attr.attr, &iio_const_attr_sampling_frequency_available.dev_attr.attr, NULL }; @@ -168,16 +162,19 @@ static const struct iio_chan_spec tmp006_channels[] = { .type = IIO_VOLTAGE, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ), }, { .type = IIO_TEMP, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ), } }; static const struct iio_info tmp006_info = { .read_raw = tmp006_read_raw, + .write_raw = tmp006_write_raw, .attrs = &tmp006_attribute_group, .driver_module = THIS_MODULE, }; diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c index e1c5300..24e625c 100644 --- a/drivers/input/touchscreen/ti_am335x_tsc.c +++ b/drivers/input/touchscreen/ti_am335x_tsc.c @@ -52,6 +52,7 @@ struct titsc { u32 config_inp[4]; u32 bit_xp, bit_xn, bit_yp, bit_yn; u32 inp_xp, inp_xn, inp_yp, inp_yn; + u32 step_mask; }; static unsigned int titsc_readl(struct titsc *ts, unsigned int reg) @@ -196,7 +197,8 @@ static void titsc_step_config(struct titsc *ts_dev) /* The steps1 … end and bit 0 for TS_Charge */ stepenable = (1 << (end_step + 2)) - 1; - am335x_tsc_se_set(ts_dev->mfd_tscadc, stepenable); + ts_dev->step_mask = stepenable; + am335x_tsc_se_set(ts_dev->mfd_tscadc, ts_dev->step_mask); } static void titsc_read_coordinates(struct titsc *ts_dev, @@ -260,6 +262,10 @@ static irqreturn_t titsc_irq(int irq, void *dev) unsigned int fsm; status = titsc_readl(ts_dev, REG_IRQSTATUS); + /* + * ADC and touchscreen share the IRQ line. + * FIFO1 interrupts are used by ADC. Handle FIFO0 IRQs here only + */ if (status & IRQENB_FIFO0THRES) { titsc_read_coordinates(ts_dev, &x, &y, &z1, &z2); @@ -316,7 +322,7 @@ static irqreturn_t titsc_irq(int irq, void *dev) if (irqclr) { titsc_writel(ts_dev, REG_IRQSTATUS, irqclr); - am335x_tsc_se_update(ts_dev->mfd_tscadc); + am335x_tsc_se_set(ts_dev->mfd_tscadc, ts_dev->step_mask); return IRQ_HANDLED; } return IRQ_NONE; @@ -389,7 +395,7 @@ static int titsc_probe(struct platform_device *pdev) } err = request_irq(ts_dev->irq, titsc_irq, - 0, pdev->dev.driver->name, ts_dev); + IRQF_SHARED, pdev->dev.driver->name, ts_dev); if (err) { dev_err(&pdev->dev, "failed to allocate irq.\n"); goto err_free_mem; diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c index 5b8f0f6..aae86dd 100644 --- a/drivers/staging/iio/accel/lis3l02dq_ring.c +++ b/drivers/staging/iio/accel/lis3l02dq_ring.c @@ -146,11 +146,7 @@ static irqreturn_t lis3l02dq_trigger_handler(int irq, void *p) if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength)) len = lis3l02dq_get_buffer_element(indio_dev, data); - /* Guaranteed to be aligned with 8 byte boundary */ - if (indio_dev->scan_timestamp) - *(s64 *)((u8 *)data + ALIGN(len, sizeof(s64))) - = pf->timestamp; - iio_push_to_buffers(indio_dev, (u8 *)data); + iio_push_to_buffers_with_timestamp(indio_dev, data, pf->timestamp); kfree(data); done: diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c index 48a25ba..6a9ca20 100644 --- a/drivers/staging/iio/accel/sca3000_core.c +++ b/drivers/staging/iio/accel/sca3000_core.c @@ -624,9 +624,9 @@ static ssize_t sca3000_set_frequency(struct device *dev, struct sca3000_state *st = iio_priv(indio_dev); int ret, base_freq = 0; int ctrlval; - long val; + int val; - ret = strict_strtol(buf, 10, &val); + ret = kstrtoint(buf, 10, &val); if (ret) return ret; @@ -931,12 +931,12 @@ static ssize_t sca3000_set_free_fall_mode(struct device *dev, { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct sca3000_state *st = iio_priv(indio_dev); - long val; + u8 val; int ret; u8 protect_mask = SCA3000_FREE_FALL_DETECT; mutex_lock(&st->lock); - ret = strict_strtol(buf, 10, &val); + ret = kstrtou8(buf, 10, &val); if (ret) goto error_ret; diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c index 3e5e860..0f2ee33 100644 --- a/drivers/staging/iio/accel/sca3000_ring.c +++ b/drivers/staging/iio/accel/sca3000_ring.c @@ -177,11 +177,11 @@ static ssize_t sca3000_set_ring_int(struct device *dev, struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct sca3000_state *st = iio_priv(indio_dev); struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); - long val; + u8 val; int ret; mutex_lock(&st->lock); - ret = strict_strtol(buf, 10, &val); + ret = kstrtou8(buf, 10, &val); if (ret) goto error_ret; ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_MASK, 1); diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c index 3283e282..83bb44b 100644 --- a/drivers/staging/iio/adc/ad7192.c +++ b/drivers/staging/iio/adc/ad7192.c @@ -623,17 +623,17 @@ static int ad7192_probe(struct spi_device *spi) return -ENODEV; } - indio_dev = iio_device_alloc(sizeof(*st)); + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); if (indio_dev == NULL) return -ENOMEM; st = iio_priv(indio_dev); - st->reg = regulator_get(&spi->dev, "vcc"); + st->reg = devm_regulator_get(&spi->dev, "vcc"); if (!IS_ERR(st->reg)) { ret = regulator_enable(st->reg); if (ret) - goto error_put_reg; + return ret; voltage_uv = regulator_get_voltage(st->reg); } @@ -677,11 +677,6 @@ error_remove_trigger: error_disable_reg: if (!IS_ERR(st->reg)) regulator_disable(st->reg); -error_put_reg: - if (!IS_ERR(st->reg)) - regulator_put(st->reg); - - iio_device_free(indio_dev); return ret; } @@ -694,10 +689,8 @@ static int ad7192_remove(struct spi_device *spi) iio_device_unregister(indio_dev); ad_sd_cleanup_buffer_and_trigger(indio_dev); - if (!IS_ERR(st->reg)) { + if (!IS_ERR(st->reg)) regulator_disable(st->reg); - regulator_put(st->reg); - } return 0; } diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c index c19618b..e7191e4 100644 --- a/drivers/staging/iio/adc/ad7280a.c +++ b/drivers/staging/iio/adc/ad7280a.c @@ -835,8 +835,9 @@ static int ad7280_probe(struct spi_device *spi) int ret; const unsigned short tACQ_ns[4] = {465, 1010, 1460, 1890}; const unsigned short nAVG[4] = {1, 2, 4, 8}; - struct iio_dev *indio_dev = iio_device_alloc(sizeof(*st)); + struct iio_dev *indio_dev; + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); if (indio_dev == NULL) return -ENOMEM; @@ -860,7 +861,7 @@ static int ad7280_probe(struct spi_device *spi) ret = ad7280_chain_setup(st); if (ret < 0) - goto error_free_device; + return ret; st->slave_num = ret; st->scan_cnt = (st->slave_num + 1) * AD7280A_NUM_CH; @@ -891,7 +892,7 @@ static int ad7280_probe(struct spi_device *spi) ret = ad7280_channel_init(st); if (ret < 0) - goto error_free_device; + return ret; indio_dev->num_channels = ret; indio_dev->channels = st->channels; @@ -940,9 +941,6 @@ error_free_attr: error_free_channels: kfree(st->channels); -error_free_device: - iio_device_free(indio_dev); - return ret; } @@ -960,7 +958,6 @@ static int ad7280_remove(struct spi_device *spi) kfree(st->channels); kfree(st->iio_attr); - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c index a2e61c2..1dae1ef 100644 --- a/drivers/staging/iio/adc/ad7291.c +++ b/drivers/staging/iio/adc/ad7291.c @@ -528,21 +528,19 @@ static int ad7291_probe(struct i2c_client *client, struct iio_dev *indio_dev; int ret = 0; - indio_dev = iio_device_alloc(sizeof(*chip)); - if (indio_dev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip)); + if (!indio_dev) + return -ENOMEM; chip = iio_priv(indio_dev); if (pdata && pdata->use_external_ref) { - chip->reg = regulator_get(&client->dev, "vref"); + chip->reg = devm_regulator_get(&client->dev, "vref"); if (IS_ERR(chip->reg)) - goto error_free; + return ret; ret = regulator_enable(chip->reg); if (ret) - goto error_put_reg; + return ret; } mutex_init(&chip->state_lock); @@ -601,12 +599,7 @@ error_unreg_irq: error_disable_reg: if (chip->reg) regulator_disable(chip->reg); -error_put_reg: - if (chip->reg) - regulator_put(chip->reg); -error_free: - iio_device_free(indio_dev); -error_ret: + return ret; } @@ -620,12 +613,8 @@ static int ad7291_remove(struct i2c_client *client) if (client->irq) free_irq(client->irq, indio_dev); - if (chip->reg) { + if (chip->reg) regulator_disable(chip->reg); - regulator_put(chip->reg); - } - - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c index 72868ce..f042027 100644 --- a/drivers/staging/iio/adc/ad7606_core.c +++ b/drivers/staging/iio/adc/ad7606_core.c @@ -425,8 +425,7 @@ static irqreturn_t ad7606_interrupt(int irq, void *dev_id) struct ad7606_state *st = iio_priv(indio_dev); if (iio_buffer_enabled(indio_dev)) { - if (!work_pending(&st->poll_work)) - schedule_work(&st->poll_work); + schedule_work(&st->poll_work); } else { st->done = true; wake_up_interruptible(&st->wq_data_avail); @@ -466,12 +465,11 @@ struct iio_dev *ad7606_probe(struct device *dev, int irq, struct ad7606_platform_data *pdata = dev->platform_data; struct ad7606_state *st; int ret; - struct iio_dev *indio_dev = iio_device_alloc(sizeof(*st)); + struct iio_dev *indio_dev; - if (indio_dev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + indio_dev = devm_iio_device_alloc(dev, sizeof(*st)); + if (!indio_dev) + return ERR_PTR(-ENOMEM); st = iio_priv(indio_dev); @@ -489,11 +487,11 @@ struct iio_dev *ad7606_probe(struct device *dev, int irq, st->oversampling = pdata->default_os; } - st->reg = regulator_get(dev, "vcc"); + st->reg = devm_regulator_get(dev, "vcc"); if (!IS_ERR(st->reg)) { ret = regulator_enable(st->reg); if (ret) - goto error_put_reg; + return ERR_PTR(ret); } st->pdata = pdata; @@ -554,11 +552,6 @@ error_free_gpios: error_disable_reg: if (!IS_ERR(st->reg)) regulator_disable(st->reg); -error_put_reg: - if (!IS_ERR(st->reg)) - regulator_put(st->reg); - iio_device_free(indio_dev); -error_ret: return ERR_PTR(ret); } @@ -570,13 +563,10 @@ int ad7606_remove(struct iio_dev *indio_dev, int irq) ad7606_ring_cleanup(indio_dev); free_irq(irq, indio_dev); - if (!IS_ERR(st->reg)) { + if (!IS_ERR(st->reg)) regulator_disable(st->reg); - regulator_put(st->reg); - } ad7606_free_gpios(st); - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/adc/ad7606_ring.c b/drivers/staging/iio/adc/ad7606_ring.c index 2b25cb0..3bf174c 100644 --- a/drivers/staging/iio/adc/ad7606_ring.c +++ b/drivers/staging/iio/adc/ad7606_ring.c @@ -46,7 +46,6 @@ static void ad7606_poll_bh_to_ring(struct work_struct *work_s) struct ad7606_state *st = container_of(work_s, struct ad7606_state, poll_work); struct iio_dev *indio_dev = iio_priv_to_dev(st); - s64 time_ns; __u8 *buf; int ret; @@ -78,12 +77,7 @@ static void ad7606_poll_bh_to_ring(struct work_struct *work_s) goto done; } - time_ns = iio_get_time_ns(); - - if (indio_dev->scan_timestamp) - *((s64 *)(buf + indio_dev->scan_bytes - sizeof(s64))) = time_ns; - - iio_push_to_buffers(indio_dev, buf); + iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns()); done: gpio_set_value(st->pdata->gpio_convst, 0); iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c index e1f8860..4f2522a 100644 --- a/drivers/staging/iio/adc/ad7780.c +++ b/drivers/staging/iio/adc/ad7780.c @@ -171,7 +171,7 @@ static int ad7780_probe(struct spi_device *spi) struct iio_dev *indio_dev; int ret, voltage_uv = 0; - indio_dev = iio_device_alloc(sizeof(*st)); + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); if (indio_dev == NULL) return -ENOMEM; @@ -180,11 +180,11 @@ static int ad7780_probe(struct spi_device *spi) ad_sd_init(&st->sd, indio_dev, spi, &ad7780_sigma_delta_info); - st->reg = regulator_get(&spi->dev, "vcc"); + st->reg = devm_regulator_get(&spi->dev, "vcc"); if (!IS_ERR(st->reg)) { ret = regulator_enable(st->reg); if (ret) - goto error_put_reg; + return ret; voltage_uv = regulator_get_voltage(st->reg); } @@ -210,8 +210,8 @@ static int ad7780_probe(struct spi_device *spi) if (pdata && gpio_is_valid(pdata->gpio_pdrst)) { - ret = gpio_request_one(pdata->gpio_pdrst, GPIOF_OUT_INIT_LOW, - "AD7780 /PDRST"); + ret = devm_gpio_request_one(&spi->dev, pdata->gpio_pdrst, + GPIOF_OUT_INIT_LOW, "AD7780 /PDRST"); if (ret) { dev_err(&spi->dev, "failed to request GPIO PDRST\n"); goto error_disable_reg; @@ -223,7 +223,7 @@ static int ad7780_probe(struct spi_device *spi) ret = ad_sd_setup_buffer_and_trigger(indio_dev); if (ret) - goto error_free_gpio; + goto error_disable_reg; ret = iio_device_register(indio_dev); if (ret) @@ -233,17 +233,9 @@ static int ad7780_probe(struct spi_device *spi) error_cleanup_buffer_and_trigger: ad_sd_cleanup_buffer_and_trigger(indio_dev); -error_free_gpio: - if (pdata && gpio_is_valid(pdata->gpio_pdrst)) - gpio_free(pdata->gpio_pdrst); error_disable_reg: if (!IS_ERR(st->reg)) regulator_disable(st->reg); -error_put_reg: - if (!IS_ERR(st->reg)) - regulator_put(st->reg); - - iio_device_free(indio_dev); return ret; } @@ -256,14 +248,8 @@ static int ad7780_remove(struct spi_device *spi) iio_device_unregister(indio_dev); ad_sd_cleanup_buffer_and_trigger(indio_dev); - if (gpio_is_valid(st->powerdown_gpio)) - gpio_free(st->powerdown_gpio); - - if (!IS_ERR(st->reg)) { + if (!IS_ERR(st->reg)) regulator_disable(st->reg); - regulator_put(st->reg); - } - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c index 8470036..9f48e5c 100644 --- a/drivers/staging/iio/adc/ad7816.c +++ b/drivers/staging/iio/adc/ad7816.c @@ -356,11 +356,9 @@ static int ad7816_probe(struct spi_device *spi_dev) return -EINVAL; } - indio_dev = iio_device_alloc(sizeof(*chip)); - if (indio_dev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + indio_dev = devm_iio_device_alloc(&spi_dev->dev, sizeof(*chip)); + if (!indio_dev) + return -ENOMEM; chip = iio_priv(indio_dev); /* this is only used for device removal purposes */ dev_set_drvdata(&spi_dev->dev, indio_dev); @@ -372,25 +370,28 @@ static int ad7816_probe(struct spi_device *spi_dev) chip->convert_pin = pins[1]; chip->busy_pin = pins[2]; - ret = gpio_request(chip->rdwr_pin, spi_get_device_id(spi_dev)->name); + ret = devm_gpio_request(&spi_dev->dev, chip->rdwr_pin, + spi_get_device_id(spi_dev)->name); if (ret) { dev_err(&spi_dev->dev, "Fail to request rdwr gpio PIN %d.\n", chip->rdwr_pin); - goto error_free_device; + return ret; } gpio_direction_input(chip->rdwr_pin); - ret = gpio_request(chip->convert_pin, spi_get_device_id(spi_dev)->name); + ret = devm_gpio_request(&spi_dev->dev, chip->convert_pin, + spi_get_device_id(spi_dev)->name); if (ret) { dev_err(&spi_dev->dev, "Fail to request convert gpio PIN %d.\n", chip->convert_pin); - goto error_free_gpio_rdwr; + return ret; } gpio_direction_input(chip->convert_pin); - ret = gpio_request(chip->busy_pin, spi_get_device_id(spi_dev)->name); + ret = devm_gpio_request(&spi_dev->dev, chip->busy_pin, + spi_get_device_id(spi_dev)->name); if (ret) { dev_err(&spi_dev->dev, "Fail to request busy gpio PIN %d.\n", chip->busy_pin); - goto error_free_gpio_convert; + return ret; } gpio_direction_input(chip->busy_pin); @@ -401,51 +402,31 @@ static int ad7816_probe(struct spi_device *spi_dev) if (spi_dev->irq) { /* Only low trigger is supported in ad7816/7/8 */ - ret = request_threaded_irq(spi_dev->irq, - NULL, - &ad7816_event_handler, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - indio_dev->name, - indio_dev); + ret = devm_request_threaded_irq(&spi_dev->dev, spi_dev->irq, + NULL, + &ad7816_event_handler, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + indio_dev->name, + indio_dev); if (ret) - goto error_free_gpio; + return ret; } ret = iio_device_register(indio_dev); if (ret) - goto error_free_irq; + return ret; dev_info(&spi_dev->dev, "%s temperature sensor and ADC registered.\n", indio_dev->name); return 0; -error_free_irq: - free_irq(spi_dev->irq, indio_dev); -error_free_gpio: - gpio_free(chip->busy_pin); -error_free_gpio_convert: - gpio_free(chip->convert_pin); -error_free_gpio_rdwr: - gpio_free(chip->rdwr_pin); -error_free_device: - iio_device_free(indio_dev); -error_ret: - return ret; } static int ad7816_remove(struct spi_device *spi_dev) { struct iio_dev *indio_dev = dev_get_drvdata(&spi_dev->dev); - struct ad7816_chip_info *chip = iio_priv(indio_dev); iio_device_unregister(indio_dev); - dev_set_drvdata(&spi_dev->dev, NULL); - if (spi_dev->irq) - free_irq(spi_dev->irq, indio_dev); - gpio_free(chip->busy_pin); - gpio_free(chip->convert_pin); - gpio_free(chip->rdwr_pin); - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c index 2b2049c..3f5142b 100644 --- a/drivers/staging/iio/adc/ad799x_core.c +++ b/drivers/staging/iio/adc/ad799x_core.c @@ -586,8 +586,9 @@ static int ad799x_probe(struct i2c_client *client, int ret; struct ad799x_platform_data *pdata = client->dev.platform_data; struct ad799x_state *st; - struct iio_dev *indio_dev = iio_device_alloc(sizeof(*st)); + struct iio_dev *indio_dev; + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st)); if (indio_dev == NULL) return -ENOMEM; @@ -606,11 +607,11 @@ static int ad799x_probe(struct i2c_client *client, st->int_vref_mv = pdata->vref_mv; - st->reg = regulator_get(&client->dev, "vcc"); + st->reg = devm_regulator_get(&client->dev, "vcc"); if (!IS_ERR(st->reg)) { ret = regulator_enable(st->reg); if (ret) - goto error_put_reg; + return ret; } st->client = client; @@ -650,10 +651,6 @@ error_cleanup_ring: error_disable_reg: if (!IS_ERR(st->reg)) regulator_disable(st->reg); -error_put_reg: - if (!IS_ERR(st->reg)) - regulator_put(st->reg); - iio_device_free(indio_dev); return ret; } @@ -668,12 +665,9 @@ static int ad799x_remove(struct i2c_client *client) free_irq(client->irq, indio_dev); ad799x_ring_cleanup(indio_dev); - if (!IS_ERR(st->reg)) { + if (!IS_ERR(st->reg)) regulator_disable(st->reg); - regulator_put(st->reg); - } kfree(st->rx_buf); - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/adc/ad799x_ring.c b/drivers/staging/iio/adc/ad799x_ring.c index c2ebae1..0ff6c03 100644 --- a/drivers/staging/iio/adc/ad799x_ring.c +++ b/drivers/staging/iio/adc/ad799x_ring.c @@ -35,7 +35,6 @@ static irqreturn_t ad799x_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct ad799x_state *st = iio_priv(indio_dev); - s64 time_ns; int b_sent; u8 cmd; @@ -65,13 +64,8 @@ static irqreturn_t ad799x_trigger_handler(int irq, void *p) if (b_sent < 0) goto out; - time_ns = iio_get_time_ns(); - - if (indio_dev->scan_timestamp) - memcpy(st->rx_buf + indio_dev->scan_bytes - sizeof(s64), - &time_ns, sizeof(time_ns)); - - iio_push_to_buffers(indio_dev, st->rx_buf); + iio_push_to_buffers_with_timestamp(indio_dev, st->rx_buf, + iio_get_time_ns()); out: iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/staging/iio/adc/lpc32xx_adc.c b/drivers/staging/iio/adc/lpc32xx_adc.c index 9a4bb09..ce7ff3e 100644 --- a/drivers/staging/iio/adc/lpc32xx_adc.c +++ b/drivers/staging/iio/adc/lpc32xx_adc.c @@ -137,43 +137,39 @@ static int lpc32xx_adc_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(&pdev->dev, "failed to get platform I/O memory\n"); - retval = -EBUSY; - goto errout1; + return -EBUSY; } - iodev = iio_device_alloc(sizeof(struct lpc32xx_adc_info)); - if (!iodev) { - dev_err(&pdev->dev, "failed allocating iio device\n"); - retval = -ENOMEM; - goto errout1; - } + iodev = devm_iio_device_alloc(&pdev->dev, sizeof(*info)); + if (!iodev) + return -ENOMEM; info = iio_priv(iodev); - info->adc_base = ioremap(res->start, resource_size(res)); + info->adc_base = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); if (!info->adc_base) { dev_err(&pdev->dev, "failed mapping memory\n"); - retval = -EBUSY; - goto errout2; + return -EBUSY; } - info->clk = clk_get(&pdev->dev, NULL); + info->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(info->clk)) { dev_err(&pdev->dev, "failed getting clock\n"); - goto errout3; + return PTR_ERR(info->clk); } irq = platform_get_irq(pdev, 0); if ((irq < 0) || (irq >= NR_IRQS)) { dev_err(&pdev->dev, "failed getting interrupt resource\n"); - retval = -EINVAL; - goto errout4; + return -EINVAL; } - retval = request_irq(irq, lpc32xx_adc_isr, 0, MOD_NAME, info); + retval = devm_request_irq(&pdev->dev, irq, lpc32xx_adc_isr, 0, + MOD_NAME, info); if (retval < 0) { dev_err(&pdev->dev, "failed requesting interrupt\n"); - goto errout4; + return retval; } platform_set_drvdata(pdev, iodev); @@ -189,35 +185,18 @@ static int lpc32xx_adc_probe(struct platform_device *pdev) retval = iio_device_register(iodev); if (retval) - goto errout5; + return retval; dev_info(&pdev->dev, "LPC32XX ADC driver loaded, IRQ %d\n", irq); return 0; - -errout5: - free_irq(irq, info); -errout4: - clk_put(info->clk); -errout3: - iounmap(info->adc_base); -errout2: - iio_device_free(iodev); -errout1: - return retval; } static int lpc32xx_adc_remove(struct platform_device *pdev) { struct iio_dev *iodev = platform_get_drvdata(pdev); - struct lpc32xx_adc_info *info = iio_priv(iodev); - int irq = platform_get_irq(pdev, 0); iio_device_unregister(iodev); - free_irq(irq, info); - clk_put(info->clk); - iounmap(info->adc_base); - iio_device_free(iodev); return 0; } diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c index a08c173..9da64bf 100644 --- a/drivers/staging/iio/adc/mxs-lradc.c +++ b/drivers/staging/iio/adc/mxs-lradc.c @@ -625,13 +625,7 @@ static irqreturn_t mxs_lradc_trigger_handler(int irq, void *p) j++; } - if (iio->scan_timestamp) { - s64 *timestamp = (s64 *)((u8 *)lradc->buffer + - ALIGN(j, sizeof(s64))); - *timestamp = pf->timestamp; - } - - iio_push_to_buffers(iio, (u8 *)lradc->buffer); + iio_push_to_buffers_with_timestamp(iio, lradc->buffer, pf->timestamp); iio_trigger_notify_done(iio->trig); @@ -987,7 +981,7 @@ static int mxs_lradc_probe(struct platform_device *pdev) /* Register the touchscreen input device. */ ret = mxs_lradc_ts_register(lradc); if (ret) - goto err_dev; + goto err_ts_register; /* Register IIO device. */ ret = iio_device_register(iio); @@ -1000,6 +994,8 @@ static int mxs_lradc_probe(struct platform_device *pdev) err_ts: mxs_lradc_ts_unregister(lradc); +err_ts_register: + mxs_lradc_hw_stop(lradc); err_dev: mxs_lradc_trigger_remove(iio); err_trig: @@ -1012,13 +1008,11 @@ static int mxs_lradc_remove(struct platform_device *pdev) struct iio_dev *iio = platform_get_drvdata(pdev); struct mxs_lradc *lradc = iio_priv(iio); + iio_device_unregister(iio); mxs_lradc_ts_unregister(lradc); - mxs_lradc_hw_stop(lradc); - - iio_device_unregister(iio); - iio_triggered_buffer_cleanup(iio); mxs_lradc_trigger_remove(iio); + iio_triggered_buffer_cleanup(iio); return 0; } @@ -1038,3 +1032,4 @@ module_platform_driver(mxs_lradc_driver); MODULE_AUTHOR("Marek Vasut <marex@denx.de>"); MODULE_DESCRIPTION("Freescale i.MX28 LRADC driver"); MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRIVER_NAME); diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c index 1e13568..80266e8 100644 --- a/drivers/staging/iio/addac/adt7316.c +++ b/drivers/staging/iio/addac/adt7316.c @@ -412,13 +412,13 @@ static ssize_t adt7316_store_ad_channel(struct device *dev, struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 config2; - unsigned long data = 0; + u8 data; int ret; if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE)) return -EPERM; - ret = strict_strtoul(buf, 10, &data); + ret = kstrtou8(buf, 10, &data); if (ret) return -EINVAL; @@ -823,10 +823,10 @@ static ssize_t adt7316_store_DAC_2Vref_ch_mask(struct device *dev, struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 dac_config; - unsigned long data = 0; + u8 data; int ret; - ret = strict_strtoul(buf, 16, &data); + ret = kstrtou8(buf, 16, &data); if (ret || data > ADT7316_DA_2VREF_CH_MASK) return -EINVAL; @@ -878,13 +878,13 @@ static ssize_t adt7316_store_DAC_update_mode(struct device *dev, struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 dac_config; - unsigned long data; + u8 data; int ret; if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA)) return -EPERM; - ret = strict_strtoul(buf, 10, &data); + ret = kstrtou8(buf, 10, &data); if (ret || data > ADT7316_DA_EN_MODE_MASK) return -EINVAL; @@ -933,7 +933,7 @@ static ssize_t adt7316_store_update_DAC(struct device *dev, struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 ldac_config; - unsigned long data; + u8 data; int ret; if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA) { @@ -941,7 +941,7 @@ static ssize_t adt7316_store_update_DAC(struct device *dev, ADT7316_DA_EN_MODE_LDAC) return -EPERM; - ret = strict_strtoul(buf, 16, &data); + ret = kstrtou8(buf, 16, &data); if (ret || data > ADT7316_LDAC_EN_DA_MASK) return -EINVAL; @@ -1079,11 +1079,11 @@ static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev, struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 ldac_config; - unsigned long data; + u8 data; int ret; if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) { - ret = strict_strtoul(buf, 16, &data); + ret = kstrtou8(buf, 16, &data); if (ret || data > 3) return -EINVAL; @@ -1093,7 +1093,7 @@ static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev, else if (data & 0x2) ldac_config |= ADT7516_DAC_CD_IN_VREF; } else { - ret = strict_strtoul(buf, 16, &data); + ret = kstrtou8(buf, 16, &data); if (ret) return -EINVAL; @@ -1281,11 +1281,11 @@ static ssize_t adt7316_show_temp_offset(struct adt7316_chip_info *chip, static ssize_t adt7316_store_temp_offset(struct adt7316_chip_info *chip, int offset_addr, const char *buf, size_t len) { - long data; + int data; u8 val; int ret; - ret = strict_strtol(buf, 10, &data); + ret = kstrtoint(buf, 10, &data); if (ret || data > 127 || data < -128) return -EINVAL; @@ -1442,7 +1442,7 @@ static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip, int channel, const char *buf, size_t len) { u8 msb, lsb, offset; - unsigned long data; + u16 data; int ret; if (channel >= ADT7316_DA_MSB_DATA_REGS || @@ -1454,7 +1454,7 @@ static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip, offset = chip->dac_bits - 8; - ret = strict_strtoul(buf, 10, &data); + ret = kstrtou16(buf, 10, &data); if (ret || data >= (1 << chip->dac_bits)) return -EINVAL; @@ -1830,11 +1830,11 @@ static ssize_t adt7316_set_int_mask(struct device *dev, { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); - unsigned long data; + u16 data; int ret; u8 mask; - ret = strict_strtoul(buf, 16, &data); + ret = kstrtou16(buf, 16, &data); if (ret || data >= ADT7316_VDD_INT_MASK + 1) return -EINVAL; @@ -1901,7 +1901,7 @@ static inline ssize_t adt7316_set_ad_bound(struct device *dev, struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); - long data; + int data; u8 val; int ret; @@ -1909,7 +1909,7 @@ static inline ssize_t adt7316_set_ad_bound(struct device *dev, this_attr->address > ADT7316_EX_TEMP_LOW) return -EPERM; - ret = strict_strtol(buf, 10, &data); + ret = kstrtoint(buf, 10, &data); if (ret) return -EINVAL; @@ -2106,11 +2106,9 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus, unsigned short *adt7316_platform_data = dev->platform_data; int ret = 0; - indio_dev = iio_device_alloc(sizeof(*chip)); - if (indio_dev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + indio_dev = devm_iio_device_alloc(dev, sizeof(*chip)); + if (!indio_dev) + return -ENOMEM; chip = iio_priv(indio_dev); /* this is only used for device removal purposes */ dev_set_drvdata(dev, indio_dev); @@ -2146,58 +2144,44 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus, if (adt7316_platform_data[0]) chip->bus.irq_flags = adt7316_platform_data[0]; - ret = request_threaded_irq(chip->bus.irq, - NULL, - &adt7316_event_handler, - chip->bus.irq_flags | IRQF_ONESHOT, - indio_dev->name, - indio_dev); + ret = devm_request_threaded_irq(dev, chip->bus.irq, + NULL, + &adt7316_event_handler, + chip->bus.irq_flags | + IRQF_ONESHOT, + indio_dev->name, + indio_dev); if (ret) - goto error_free_dev; + return ret; if (chip->bus.irq_flags & IRQF_TRIGGER_HIGH) chip->config1 |= ADT7316_INT_POLARITY; } ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, chip->config1); - if (ret) { - ret = -EIO; - goto error_unreg_irq; - } + if (ret) + return -EIO; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, chip->config3); - if (ret) { - ret = -EIO; - goto error_unreg_irq; - } + if (ret) + return -EIO; ret = iio_device_register(indio_dev); if (ret) - goto error_unreg_irq; + return ret; dev_info(dev, "%s temperature sensor, ADC and DAC registered.\n", indio_dev->name); return 0; - -error_unreg_irq: - free_irq(chip->bus.irq, indio_dev); -error_free_dev: - iio_device_free(indio_dev); -error_ret: - return ret; } EXPORT_SYMBOL(adt7316_probe); int adt7316_remove(struct device *dev) { struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct adt7316_chip_info *chip = iio_priv(indio_dev); iio_device_unregister(indio_dev); - if (chip->bus.irq) - free_irq(chip->bus.irq, indio_dev); - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/frequency/ad5930.c b/drivers/staging/iio/frequency/ad5930.c index 69e90e9..a4aeee6 100644 --- a/drivers/staging/iio/frequency/ad5930.c +++ b/drivers/staging/iio/frequency/ad5930.c @@ -94,11 +94,9 @@ static int ad5930_probe(struct spi_device *spi) struct iio_dev *idev; int ret = 0; - idev = iio_device_alloc(sizeof(*st)); - if (idev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + idev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!idev) + return -ENOMEM; spi_set_drvdata(spi, idev); st = iio_priv(idev); @@ -110,24 +108,18 @@ static int ad5930_probe(struct spi_device *spi) ret = iio_device_register(idev); if (ret) - goto error_free_dev; + return ret; spi->max_speed_hz = 2000000; spi->mode = SPI_MODE_3; spi->bits_per_word = 16; spi_setup(spi); return 0; - -error_free_dev: - iio_device_free(idev); -error_ret: - return ret; } static int ad5930_remove(struct spi_device *spi) { iio_device_unregister(spi_get_drvdata(spi)); - iio_device_free(spi_get_drvdata(spi)); return 0; } diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c index 4e18380..c7d0307 100644 --- a/drivers/staging/iio/frequency/ad9832.c +++ b/drivers/staging/iio/frequency/ad9832.c @@ -81,9 +81,9 @@ static ssize_t ad9832_write(struct device *dev, struct ad9832_state *st = iio_priv(indio_dev); struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret; - long val; + unsigned long val; - ret = strict_strtoul(buf, 10, &val); + ret = kstrtoul(buf, 10, &val); if (ret) goto error_ret; @@ -214,14 +214,14 @@ static int ad9832_probe(struct spi_device *spi) return -ENODEV; } - reg = regulator_get(&spi->dev, "vcc"); + reg = devm_regulator_get(&spi->dev, "vcc"); if (!IS_ERR(reg)) { ret = regulator_enable(reg); if (ret) - goto error_put_reg; + return ret; } - indio_dev = iio_device_alloc(sizeof(*st)); + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); if (indio_dev == NULL) { ret = -ENOMEM; goto error_disable_reg; @@ -279,47 +279,42 @@ static int ad9832_probe(struct spi_device *spi) ret = spi_sync(st->spi, &st->msg); if (ret) { dev_err(&spi->dev, "device init failed\n"); - goto error_free_device; + goto error_disable_reg; } ret = ad9832_write_frequency(st, AD9832_FREQ0HM, pdata->freq0); if (ret) - goto error_free_device; + goto error_disable_reg; ret = ad9832_write_frequency(st, AD9832_FREQ1HM, pdata->freq1); if (ret) - goto error_free_device; + goto error_disable_reg; ret = ad9832_write_phase(st, AD9832_PHASE0H, pdata->phase0); if (ret) - goto error_free_device; + goto error_disable_reg; ret = ad9832_write_phase(st, AD9832_PHASE1H, pdata->phase1); if (ret) - goto error_free_device; + goto error_disable_reg; ret = ad9832_write_phase(st, AD9832_PHASE2H, pdata->phase2); if (ret) - goto error_free_device; + goto error_disable_reg; ret = ad9832_write_phase(st, AD9832_PHASE3H, pdata->phase3); if (ret) - goto error_free_device; + goto error_disable_reg; ret = iio_device_register(indio_dev); if (ret) - goto error_free_device; + goto error_disable_reg; return 0; -error_free_device: - iio_device_free(indio_dev); error_disable_reg: if (!IS_ERR(reg)) regulator_disable(reg); -error_put_reg: - if (!IS_ERR(reg)) - regulator_put(reg); return ret; } @@ -330,11 +325,8 @@ static int ad9832_remove(struct spi_device *spi) struct ad9832_state *st = iio_priv(indio_dev); iio_device_unregister(indio_dev); - if (!IS_ERR(st->reg)) { + if (!IS_ERR(st->reg)) regulator_disable(st->reg); - regulator_put(st->reg); - } - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/frequency/ad9834.c b/drivers/staging/iio/frequency/ad9834.c index 5cba3c0..86cda61 100644 --- a/drivers/staging/iio/frequency/ad9834.c +++ b/drivers/staging/iio/frequency/ad9834.c @@ -70,9 +70,9 @@ static ssize_t ad9834_write(struct device *dev, struct ad9834_state *st = iio_priv(indio_dev); struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret; - long val; + unsigned long val; - ret = strict_strtoul(buf, 10, &val); + ret = kstrtoul(buf, 10, &val); if (ret) goto error_ret; @@ -327,14 +327,14 @@ static int ad9834_probe(struct spi_device *spi) return -ENODEV; } - reg = regulator_get(&spi->dev, "vcc"); + reg = devm_regulator_get(&spi->dev, "vcc"); if (!IS_ERR(reg)) { ret = regulator_enable(reg); if (ret) - goto error_put_reg; + return ret; } - indio_dev = iio_device_alloc(sizeof(*st)); + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); if (indio_dev == NULL) { ret = -ENOMEM; goto error_disable_reg; @@ -388,39 +388,35 @@ static int ad9834_probe(struct spi_device *spi) ret = spi_sync(st->spi, &st->msg); if (ret) { dev_err(&spi->dev, "device init failed\n"); - goto error_free_device; + goto error_disable_reg; } ret = ad9834_write_frequency(st, AD9834_REG_FREQ0, pdata->freq0); if (ret) - goto error_free_device; + goto error_disable_reg; ret = ad9834_write_frequency(st, AD9834_REG_FREQ1, pdata->freq1); if (ret) - goto error_free_device; + goto error_disable_reg; ret = ad9834_write_phase(st, AD9834_REG_PHASE0, pdata->phase0); if (ret) - goto error_free_device; + goto error_disable_reg; ret = ad9834_write_phase(st, AD9834_REG_PHASE1, pdata->phase1); if (ret) - goto error_free_device; + goto error_disable_reg; ret = iio_device_register(indio_dev); if (ret) - goto error_free_device; + goto error_disable_reg; return 0; -error_free_device: - iio_device_free(indio_dev); error_disable_reg: if (!IS_ERR(reg)) regulator_disable(reg); -error_put_reg: - if (!IS_ERR(reg)) - regulator_put(reg); + return ret; } @@ -430,11 +426,8 @@ static int ad9834_remove(struct spi_device *spi) struct ad9834_state *st = iio_priv(indio_dev); iio_device_unregister(indio_dev); - if (!IS_ERR(st->reg)) { + if (!IS_ERR(st->reg)) regulator_disable(st->reg); - regulator_put(st->reg); - } - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/frequency/ad9850.c b/drivers/staging/iio/frequency/ad9850.c index 01a8a93..af877ff 100644 --- a/drivers/staging/iio/frequency/ad9850.c +++ b/drivers/staging/iio/frequency/ad9850.c @@ -80,11 +80,9 @@ static int ad9850_probe(struct spi_device *spi) struct iio_dev *idev; int ret = 0; - idev = iio_device_alloc(sizeof(*st)); - if (idev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + idev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!idev) + return -ENOMEM; spi_set_drvdata(spi, idev); st = iio_priv(idev); mutex_init(&st->lock); @@ -96,24 +94,18 @@ static int ad9850_probe(struct spi_device *spi) ret = iio_device_register(idev); if (ret) - goto error_free_dev; + return ret; spi->max_speed_hz = 2000000; spi->mode = SPI_MODE_3; spi->bits_per_word = 16; spi_setup(spi); return 0; - -error_free_dev: - iio_device_free(idev); -error_ret: - return ret; } static int ad9850_remove(struct spi_device *spi) { iio_device_unregister(spi_get_drvdata(spi)); - iio_device_free(spi_get_drvdata(spi)); return 0; } diff --git a/drivers/staging/iio/frequency/ad9852.c b/drivers/staging/iio/frequency/ad9852.c index 1344031..4be2cf8 100644 --- a/drivers/staging/iio/frequency/ad9852.c +++ b/drivers/staging/iio/frequency/ad9852.c @@ -229,11 +229,9 @@ static int ad9852_probe(struct spi_device *spi) struct iio_dev *idev; int ret = 0; - idev = iio_device_alloc(sizeof(*st)); - if (idev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + idev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!idev) + return -ENOMEM; st = iio_priv(idev); spi_set_drvdata(spi, idev); mutex_init(&st->lock); @@ -245,7 +243,7 @@ static int ad9852_probe(struct spi_device *spi) ret = iio_device_register(idev); if (ret) - goto error_free_dev; + return ret; spi->max_speed_hz = 2000000; spi->mode = SPI_MODE_3; spi->bits_per_word = 8; @@ -253,18 +251,11 @@ static int ad9852_probe(struct spi_device *spi) ad9852_init(st); return 0; - -error_free_dev: - iio_device_free(idev); - -error_ret: - return ret; } static int ad9852_remove(struct spi_device *spi) { iio_device_unregister(spi_get_drvdata(spi)); - iio_device_free(spi_get_drvdata(spi)); return 0; } diff --git a/drivers/staging/iio/frequency/ad9910.c b/drivers/staging/iio/frequency/ad9910.c index e48f874..a7d528e 100644 --- a/drivers/staging/iio/frequency/ad9910.c +++ b/drivers/staging/iio/frequency/ad9910.c @@ -367,11 +367,9 @@ static int ad9910_probe(struct spi_device *spi) struct iio_dev *idev; int ret = 0; - idev = iio_device_alloc(sizeof(*st)); - if (idev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + idev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!idev) + return -ENOMEM; spi_set_drvdata(spi, idev); st = iio_priv(idev); mutex_init(&st->lock); @@ -383,24 +381,18 @@ static int ad9910_probe(struct spi_device *spi) ret = iio_device_register(idev); if (ret) - goto error_free_dev; + return ret; spi->max_speed_hz = 2000000; spi->mode = SPI_MODE_3; spi->bits_per_word = 8; spi_setup(spi); ad9910_init(st); return 0; - -error_free_dev: - iio_device_free(idev); -error_ret: - return ret; } static int ad9910_remove(struct spi_device *spi) { iio_device_unregister(spi_get_drvdata(spi)); - iio_device_free(spi_get_drvdata(spi)); return 0; } diff --git a/drivers/staging/iio/frequency/ad9951.c b/drivers/staging/iio/frequency/ad9951.c index 8234e3c..0094c2f 100644 --- a/drivers/staging/iio/frequency/ad9951.c +++ b/drivers/staging/iio/frequency/ad9951.c @@ -176,11 +176,9 @@ static int ad9951_probe(struct spi_device *spi) struct iio_dev *idev; int ret = 0; - idev = iio_device_alloc(sizeof(*st)); - if (idev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + idev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!idev) + return -ENOMEM; spi_set_drvdata(spi, idev); st = iio_priv(idev); mutex_init(&st->lock); @@ -193,25 +191,18 @@ static int ad9951_probe(struct spi_device *spi) ret = iio_device_register(idev); if (ret) - goto error_free_dev; + return ret; spi->max_speed_hz = 2000000; spi->mode = SPI_MODE_3; spi->bits_per_word = 8; spi_setup(spi); ad9951_init(st); return 0; - -error_free_dev: - iio_device_free(idev); - -error_ret: - return ret; } static int ad9951_remove(struct spi_device *spi) { iio_device_unregister(spi_get_drvdata(spi)); - iio_device_free(spi_get_drvdata(spi)); return 0; } diff --git a/drivers/staging/iio/iio_simple_dummy.c b/drivers/staging/iio/iio_simple_dummy.c index 0e8e02a..141ec61 100644 --- a/drivers/staging/iio/iio_simple_dummy.c +++ b/drivers/staging/iio/iio_simple_dummy.c @@ -90,6 +90,11 @@ static const struct iio_chan_spec iio_dummy_channels[] = { * when converting to standard units (microvolts) */ BIT(IIO_CHAN_INFO_SCALE), + /* + * sampling_frequency + * The frequency in Hz at which the channels are sampled + */ + .info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ), /* The ordering of elements in the buffer via an enum */ .scan_index = voltage0, .scan_type = { /* Description of storage in buffer */ @@ -130,6 +135,10 @@ static const struct iio_chan_spec iio_dummy_channels[] = { * input channels of type IIO_VOLTAGE. */ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), + /* + * sampling_frequency + * The frequency in Hz at which the channels are sampled + */ .scan_index = diffvoltage1m2, .scan_type = { /* Description of storage in buffer */ .sign = 's', /* signed */ @@ -147,6 +156,7 @@ static const struct iio_chan_spec iio_dummy_channels[] = { .channel2 = 4, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), + .info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ), .scan_index = diffvoltage3m4, .scan_type = { .sign = 's', @@ -173,6 +183,7 @@ static const struct iio_chan_spec iio_dummy_channels[] = { */ BIT(IIO_CHAN_INFO_CALIBSCALE) | BIT(IIO_CHAN_INFO_CALIBBIAS), + .info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ), .scan_index = accelx, .scan_type = { /* Description of storage in buffer */ .sign = 's', /* signed */ @@ -272,6 +283,11 @@ static int iio_dummy_read_raw(struct iio_dev *indio_dev, *val2 = st->accel_calibscale->val2; ret = IIO_VAL_INT_PLUS_MICRO; break; + case IIO_CHAN_INFO_SAMP_FREQ: + *val = 3; + *val2 = 33; + ret = IIO_VAL_INT_PLUS_NANO; + break; default: break; } diff --git a/drivers/staging/iio/iio_simple_dummy_buffer.c b/drivers/staging/iio/iio_simple_dummy_buffer.c index 72f400c..09c93ac 100644 --- a/drivers/staging/iio/iio_simple_dummy_buffer.c +++ b/drivers/staging/iio/iio_simple_dummy_buffer.c @@ -82,11 +82,8 @@ static irqreturn_t iio_simple_dummy_trigger_h(int irq, void *p) len += 2; } } - /* Store the timestamp at an 8 byte aligned offset */ - if (indio_dev->scan_timestamp) - *(s64 *)((u8 *)data + ALIGN(len, sizeof(s64))) - = iio_get_time_ns(); - iio_push_to_buffers(indio_dev, (u8 *)data); + + iio_push_to_buffers_with_timestamp(indio_dev, data, iio_get_time_ns()); kfree(data); diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c index 6330af6..712f3c2 100644 --- a/drivers/staging/iio/impedance-analyzer/ad5933.c +++ b/drivers/staging/iio/impedance-analyzer/ad5933.c @@ -323,10 +323,10 @@ static ssize_t ad5933_store_frequency(struct device *dev, struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct ad5933_state *st = iio_priv(indio_dev); struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); - long val; + unsigned long val; int ret; - ret = strict_strtoul(buf, 10, &val); + ret = kstrtoul(buf, 10, &val); if (ret) return ret; @@ -400,12 +400,12 @@ static ssize_t ad5933_store(struct device *dev, struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct ad5933_state *st = iio_priv(indio_dev); struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); - long val; + u16 val; int i, ret = 0; unsigned short dat; if (this_attr->address != AD5933_IN_PGA_GAIN) { - ret = strict_strtol(buf, 10, &val); + ret = kstrtou16(buf, 10, &val); if (ret) return ret; } @@ -434,7 +434,7 @@ static ssize_t ad5933_store(struct device *dev, ret = ad5933_cmd(st, 0); break; case AD5933_OUT_SETTLING_CYCLES: - val = clamp(val, 0L, 0x7FFL); + val = clamp(val, (u16)0, (u16)0x7FF); st->settling_cycles = val; /* 2x, 4x handling, see datasheet */ @@ -448,7 +448,7 @@ static ssize_t ad5933_store(struct device *dev, AD5933_REG_SETTLING_CYCLES, 2, (u8 *)&dat); break; case AD5933_FREQ_POINTS: - val = clamp(val, 0L, 511L); + val = clamp(val, (u16)0, (u16)511); st->freq_points = val; dat = cpu_to_be16(val); @@ -676,7 +676,7 @@ static void ad5933_work(struct work_struct *work) } else { buf[0] = be16_to_cpu(buf[0]); } - iio_push_to_buffers(indio_dev, (u8 *)buf); + iio_push_to_buffers(indio_dev, buf); } else { /* no data available - try again later */ schedule_delayed_work(&st->work, st->poll_time_jiffies); @@ -703,7 +703,9 @@ static int ad5933_probe(struct i2c_client *client, int ret, voltage_uv = 0; struct ad5933_platform_data *pdata = client->dev.platform_data; struct ad5933_state *st; - struct iio_dev *indio_dev = iio_device_alloc(sizeof(*st)); + struct iio_dev *indio_dev; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st)); if (indio_dev == NULL) return -ENOMEM; @@ -716,11 +718,11 @@ static int ad5933_probe(struct i2c_client *client, else st->pdata = pdata; - st->reg = regulator_get(&client->dev, "vcc"); + st->reg = devm_regulator_get(&client->dev, "vcc"); if (!IS_ERR(st->reg)) { ret = regulator_enable(st->reg); if (ret) - goto error_put_reg; + return ret; voltage_uv = regulator_get_voltage(st->reg); } @@ -778,11 +780,6 @@ error_unreg_ring: error_disable_reg: if (!IS_ERR(st->reg)) regulator_disable(st->reg); -error_put_reg: - if (!IS_ERR(st->reg)) - regulator_put(st->reg); - - iio_device_free(indio_dev); return ret; } @@ -795,11 +792,8 @@ static int ad5933_remove(struct i2c_client *client) iio_device_unregister(indio_dev); iio_buffer_unregister(indio_dev); iio_kfifo_free(indio_dev->buffer); - if (!IS_ERR(st->reg)) { + if (!IS_ERR(st->reg)) regulator_disable(st->reg); - regulator_put(st->reg); - } - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/light/isl29018.c b/drivers/staging/iio/light/isl29018.c index 351936c..e314d7e 100644 --- a/drivers/staging/iio/light/isl29018.c +++ b/drivers/staging/iio/light/isl29018.c @@ -240,7 +240,7 @@ static ssize_t store_range(struct device *dev, unsigned long lval; unsigned int new_range; - if (strict_strtoul(buf, 10, &lval)) + if (kstrtoul(buf, 10, &lval)) return -EINVAL; if (!(lval == 1000UL || lval == 4000UL || @@ -279,18 +279,18 @@ static ssize_t store_resolution(struct device *dev, struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct isl29018_chip *chip = iio_priv(indio_dev); int status; - unsigned long lval; + unsigned int val; unsigned int new_adc_bit; - if (strict_strtoul(buf, 10, &lval)) + if (kstrtouint(buf, 10, &val)) return -EINVAL; - if (!(lval == 4 || lval == 8 || lval == 12 || lval == 16)) { + if (!(val == 4 || val == 8 || val == 12 || val == 16)) { dev_err(dev, "The resolution is not supported\n"); return -EINVAL; } mutex_lock(&chip->lock); - status = isl29018_set_resolution(chip, lval, &new_adc_bit); + status = isl29018_set_resolution(chip, val, &new_adc_bit); if (status < 0) { mutex_unlock(&chip->lock); dev_err(dev, "Error in setting resolution\n"); @@ -319,11 +319,11 @@ static ssize_t store_prox_infrared_suppression(struct device *dev, { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct isl29018_chip *chip = iio_priv(indio_dev); - unsigned long lval; + int val; - if (strict_strtoul(buf, 10, &lval)) + if (kstrtoint(buf, 10, &val)) return -EINVAL; - if (!(lval == 0UL || lval == 1UL)) { + if (!(val == 0 || val == 1)) { dev_err(dev, "The mode is not supported\n"); return -EINVAL; } @@ -331,7 +331,7 @@ static ssize_t store_prox_infrared_suppression(struct device *dev, /* get the "proximity scheme" i.e. if the chip does on chip infrared suppression (1 means perform on chip suppression) */ mutex_lock(&chip->lock); - chip->prox_scheme = (int)lval; + chip->prox_scheme = val; mutex_unlock(&chip->lock); return count; diff --git a/drivers/staging/iio/light/tsl2583.c b/drivers/staging/iio/light/tsl2583.c index b377dd3..f8c6595 100644 --- a/drivers/staging/iio/light/tsl2583.c +++ b/drivers/staging/iio/light/tsl2583.c @@ -493,9 +493,9 @@ static ssize_t taos_power_state_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); - unsigned long value; + int value; - if (strict_strtoul(buf, 0, &value)) + if (kstrtoint(buf, 0, &value)) return -EINVAL; if (value == 0) @@ -536,9 +536,9 @@ static ssize_t taos_gain_store(struct device *dev, { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct tsl2583_chip *chip = iio_priv(indio_dev); - unsigned long value; + int value; - if (strict_strtoul(buf, 0, &value)) + if (kstrtoint(buf, 0, &value)) return -EINVAL; switch (value) { @@ -582,9 +582,9 @@ static ssize_t taos_als_time_store(struct device *dev, { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct tsl2583_chip *chip = iio_priv(indio_dev); - unsigned long value; + int value; - if (strict_strtoul(buf, 0, &value)) + if (kstrtoint(buf, 0, &value)) return -EINVAL; if ((value < 50) || (value > 650)) @@ -619,9 +619,9 @@ static ssize_t taos_als_trim_store(struct device *dev, { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct tsl2583_chip *chip = iio_priv(indio_dev); - unsigned long value; + int value; - if (strict_strtoul(buf, 0, &value)) + if (kstrtoint(buf, 0, &value)) return -EINVAL; if (value) @@ -644,9 +644,9 @@ static ssize_t taos_als_cal_target_store(struct device *dev, { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct tsl2583_chip *chip = iio_priv(indio_dev); - unsigned long value; + int value; - if (strict_strtoul(buf, 0, &value)) + if (kstrtoint(buf, 0, &value)) return -EINVAL; if (value) @@ -671,9 +671,9 @@ static ssize_t taos_do_calibrate(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); - unsigned long value; + int value; - if (strict_strtoul(buf, 0, &value)) + if (kstrtoint(buf, 0, &value)) return -EINVAL; if (value == 1) @@ -815,12 +815,9 @@ static int taos_probe(struct i2c_client *clientp, return -EOPNOTSUPP; } - indio_dev = iio_device_alloc(sizeof(*chip)); - if (indio_dev == NULL) { - ret = -ENOMEM; - dev_err(&clientp->dev, "iio allocation failed\n"); - goto fail1; - } + indio_dev = devm_iio_device_alloc(&clientp->dev, sizeof(*chip)); + if (!indio_dev) + return -ENOMEM; chip = iio_priv(indio_dev); chip->client = clientp; i2c_set_clientdata(clientp, indio_dev); @@ -835,14 +832,14 @@ static int taos_probe(struct i2c_client *clientp, if (ret < 0) { dev_err(&clientp->dev, "i2c_smbus_write_bytes() to cmd " "reg failed in taos_probe(), err = %d\n", ret); - goto fail2; + return ret; } ret = i2c_smbus_read_byte(clientp); if (ret < 0) { dev_err(&clientp->dev, "i2c_smbus_read_byte from " "reg failed in taos_probe(), err = %d\n", ret); - goto fail2; + return ret; } buf[i] = ret; } @@ -850,14 +847,14 @@ static int taos_probe(struct i2c_client *clientp, if (!taos_tsl258x_device(buf)) { dev_info(&clientp->dev, "i2c device found but does not match " "expected id in taos_probe()\n"); - goto fail2; + return -EINVAL; } ret = i2c_smbus_write_byte(clientp, (TSL258X_CMD_REG | TSL258X_CNTRL)); if (ret < 0) { dev_err(&clientp->dev, "i2c_smbus_write_byte() to cmd reg " "failed in taos_probe(), err = %d\n", ret); - goto fail2; + return ret; } indio_dev->info = &tsl2583_info; @@ -867,7 +864,7 @@ static int taos_probe(struct i2c_client *clientp, ret = iio_device_register(indio_dev); if (ret) { dev_err(&clientp->dev, "iio registration failed\n"); - goto fail2; + return ret; } /* Load up the V2 defaults (these are hard coded defaults for now) */ @@ -878,10 +875,6 @@ static int taos_probe(struct i2c_client *clientp, dev_info(&clientp->dev, "Light sensor found.\n"); return 0; -fail1: - iio_device_free(indio_dev); -fail2: - return ret; } #ifdef CONFIG_PM_SLEEP @@ -926,7 +919,6 @@ static SIMPLE_DEV_PM_OPS(taos_pm_ops, taos_suspend, taos_resume); static int taos_remove(struct i2c_client *client) { iio_device_unregister(i2c_get_clientdata(client)); - iio_device_free(i2c_get_clientdata(client)); return 0; } diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c index c99f890..9c43dcf 100644 --- a/drivers/staging/iio/light/tsl2x7x_core.c +++ b/drivers/staging/iio/light/tsl2x7x_core.c @@ -550,7 +550,7 @@ prox_poll_err: static void tsl2x7x_defaults(struct tsl2X7X_chip *chip) { /* If Operational settings defined elsewhere.. */ - if (chip->pdata && chip->pdata->platform_default_settings != 0) + if (chip->pdata && chip->pdata->platform_default_settings) memcpy(&(chip->tsl2x7x_settings), chip->pdata->platform_default_settings, sizeof(tsl2x7x_default_settings)); @@ -951,7 +951,6 @@ static ssize_t tsl2x7x_gain_available_show(struct device *dev, case tsl2771: case tmd2771: return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 128"); - break; } return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 120"); @@ -1346,7 +1345,6 @@ static int tsl2x7x_read_raw(struct iio_dev *indio_dev, break; default: return -EINVAL; - break; } break; case IIO_CHAN_INFO_RAW: @@ -1366,7 +1364,6 @@ static int tsl2x7x_read_raw(struct iio_dev *indio_dev, break; default: return -EINVAL; - break; } break; case IIO_CHAN_INFO_CALIBSCALE: @@ -1419,7 +1416,6 @@ static int tsl2x7x_write_raw(struct iio_dev *indio_dev, case tsl2772: case tmd2772: return -EINVAL; - break; } chip->tsl2x7x_settings.als_gain = 3; break; @@ -1431,7 +1427,6 @@ static int tsl2x7x_write_raw(struct iio_dev *indio_dev, case tsl2771: case tmd2771: return -EINVAL; - break; } chip->tsl2x7x_settings.als_gain = 3; break; @@ -1508,18 +1503,15 @@ static int tsl2x7x_device_id(unsigned char *id, int target) case tsl2671: case tsl2771: return ((*id & 0xf0) == TRITON_ID); - break; case tmd2671: case tmd2771: return ((*id & 0xf0) == HALIBUT_ID); - break; case tsl2572: case tsl2672: case tmd2672: case tsl2772: case tmd2772: return ((*id & 0xf0) == SWORDFISH_ID); - break; } return -EINVAL; @@ -1851,7 +1843,7 @@ static int tsl2x7x_probe(struct i2c_client *clientp, struct iio_dev *indio_dev; struct tsl2X7X_chip *chip; - indio_dev = iio_device_alloc(sizeof(*chip)); + indio_dev = devm_iio_device_alloc(&clientp->dev, sizeof(*chip)); if (!indio_dev) return -ENOMEM; @@ -1862,22 +1854,21 @@ static int tsl2x7x_probe(struct i2c_client *clientp, ret = tsl2x7x_i2c_read(chip->client, TSL2X7X_CHIPID, &device_id); if (ret < 0) - goto fail1; + return ret; if ((!tsl2x7x_device_id(&device_id, id->driver_data)) || (tsl2x7x_device_id(&device_id, id->driver_data) == -EINVAL)) { dev_info(&chip->client->dev, "%s: i2c device found does not match expected id\n", __func__); - ret = -EINVAL; - goto fail1; + return -EINVAL; } ret = i2c_smbus_write_byte(clientp, (TSL2X7X_CMD_REG | TSL2X7X_CNTRL)); if (ret < 0) { dev_err(&clientp->dev, "%s: write to cmd reg failed. err = %d\n", __func__, ret); - goto fail1; + return ret; } /* ALS and PROX functions can be invoked via user space poll @@ -1899,16 +1890,17 @@ static int tsl2x7x_probe(struct i2c_client *clientp, indio_dev->num_channels = chip->chip_info->chan_table_elements; if (clientp->irq) { - ret = request_threaded_irq(clientp->irq, - NULL, - &tsl2x7x_event_handler, - IRQF_TRIGGER_RISING | IRQF_ONESHOT, - "TSL2X7X_event", - indio_dev); + ret = devm_request_threaded_irq(&clientp->dev, clientp->irq, + NULL, + &tsl2x7x_event_handler, + IRQF_TRIGGER_RISING | + IRQF_ONESHOT, + "TSL2X7X_event", + indio_dev); if (ret) { dev_err(&clientp->dev, "%s: irq request failed", __func__); - goto fail1; + return ret; } } @@ -1921,20 +1913,12 @@ static int tsl2x7x_probe(struct i2c_client *clientp, if (ret) { dev_err(&clientp->dev, "%s: iio registration failed\n", __func__); - goto fail2; + return ret; } dev_info(&clientp->dev, "%s Light sensor found.\n", id->name); return 0; - -fail2: - if (clientp->irq) - free_irq(clientp->irq, indio_dev); -fail1: - iio_device_free(indio_dev); - - return ret; } static int tsl2x7x_suspend(struct device *dev) @@ -1980,10 +1964,6 @@ static int tsl2x7x_remove(struct i2c_client *client) tsl2x7x_chip_off(indio_dev); iio_device_unregister(indio_dev); - if (client->irq) - free_irq(client->irq, indio_dev); - - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c index d2748c3..c7c5e82 100644 --- a/drivers/staging/iio/magnetometer/hmc5843.c +++ b/drivers/staging/iio/magnetometer/hmc5843.c @@ -643,11 +643,9 @@ static int hmc5843_probe(struct i2c_client *client, struct iio_dev *indio_dev; int err = 0; - indio_dev = iio_device_alloc(sizeof(*data)); - if (indio_dev == NULL) { - err = -ENOMEM; - goto exit; - } + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + if (indio_dev == NULL) + return -ENOMEM; /* default settings at probe */ data = iio_priv(indio_dev); @@ -665,24 +663,16 @@ static int hmc5843_probe(struct i2c_client *client, err = iio_device_register(indio_dev); if (err) - goto exit_free2; + return err; return 0; - -exit_free2: - iio_device_free(indio_dev); -exit: - return err; } static int hmc5843_remove(struct i2c_client *client) { - struct iio_dev *indio_dev = i2c_get_clientdata(client); - - iio_device_unregister(indio_dev); + iio_device_unregister(i2c_get_clientdata(client)); /* sleep mode to save power */ hmc5843_configure(client, HMC5843_MODE_SLEEP); - iio_device_free(indio_dev); return 0; } @@ -691,14 +681,14 @@ static int hmc5843_remove(struct i2c_client *client) static int hmc5843_suspend(struct device *dev) { hmc5843_configure(to_i2c_client(dev), HMC5843_MODE_SLEEP); + return 0; } static int hmc5843_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); - struct iio_dev *indio_dev = i2c_get_clientdata(client); - struct hmc5843_data *data = iio_priv(indio_dev); + struct hmc5843_data *data = iio_priv(i2c_get_clientdata(client)); hmc5843_configure(client, data->operating_mode); @@ -730,6 +720,6 @@ static struct i2c_driver hmc5843_driver = { }; module_i2c_driver(hmc5843_driver); -MODULE_AUTHOR("Shubhrajyoti Datta <shubhrajyoti@ti.com"); +MODULE_AUTHOR("Shubhrajyoti Datta <shubhrajyoti@ti.com>"); MODULE_DESCRIPTION("HMC5843/5883/5883L driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c index 74025fb..6200335 100644 --- a/drivers/staging/iio/meter/ade7753.c +++ b/drivers/staging/iio/meter/ade7753.c @@ -186,9 +186,9 @@ static ssize_t ade7753_write_8bit(struct device *dev, { struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret; - long val; + u8 val; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou8(buf, 10, &val); if (ret) goto error_ret; ret = ade7753_spi_write_reg_8(dev, this_attr->address, val); @@ -204,9 +204,9 @@ static ssize_t ade7753_write_16bit(struct device *dev, { struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret; - long val; + u16 val; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou16(buf, 10, &val); if (ret) goto error_ret; ret = ade7753_spi_write_reg_16(dev, this_attr->address, val); @@ -399,11 +399,11 @@ static ssize_t ade7753_write_frequency(struct device *dev, { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct ade7753_state *st = iio_priv(indio_dev); - unsigned long val; + u16 val; int ret; u16 reg, t; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou16(buf, 10, &val); if (ret) return ret; if (val == 0) @@ -497,11 +497,9 @@ static int ade7753_probe(struct spi_device *spi) struct iio_dev *indio_dev; /* setup the industrialio driver allocated elements */ - indio_dev = iio_device_alloc(sizeof(*st)); - if (indio_dev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!indio_dev) + return -ENOMEM; /* this is only used for removal purposes */ spi_set_drvdata(spi, indio_dev); @@ -517,19 +515,13 @@ static int ade7753_probe(struct spi_device *spi) /* Get the device into a sane initial state */ ret = ade7753_initial_setup(indio_dev); if (ret) - goto error_free_dev; + return ret; ret = iio_device_register(indio_dev); if (ret) - goto error_free_dev; + return ret; return 0; - -error_free_dev: - iio_device_free(indio_dev); - -error_ret: - return ret; } /* fixme, confirm ordering in this function */ @@ -539,7 +531,6 @@ static int ade7753_remove(struct spi_device *spi) iio_device_unregister(indio_dev); ade7753_stop_device(&indio_dev->dev); - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c index f649ebe..2e046f6 100644 --- a/drivers/staging/iio/meter/ade7754.c +++ b/drivers/staging/iio/meter/ade7754.c @@ -186,9 +186,9 @@ static ssize_t ade7754_write_8bit(struct device *dev, { struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret; - long val; + u8 val; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou8(buf, 10, &val); if (ret) goto error_ret; ret = ade7754_spi_write_reg_8(dev, this_attr->address, val); @@ -204,9 +204,9 @@ static ssize_t ade7754_write_16bit(struct device *dev, { struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret; - long val; + u16 val; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou16(buf, 10, &val); if (ret) goto error_ret; ret = ade7754_spi_write_reg_16(dev, this_attr->address, val); @@ -419,11 +419,11 @@ static ssize_t ade7754_write_frequency(struct device *dev, { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct ade7754_state *st = iio_priv(indio_dev); - unsigned long val; + u16 val; int ret; u8 reg, t; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou16(buf, 10, &val); if (ret) return ret; if (val == 0) @@ -520,11 +520,9 @@ static int ade7754_probe(struct spi_device *spi) struct iio_dev *indio_dev; /* setup the industrialio driver allocated elements */ - indio_dev = iio_device_alloc(sizeof(*st)); - if (indio_dev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!indio_dev) + return -ENOMEM; /* this is only used for removal purposes */ spi_set_drvdata(spi, indio_dev); @@ -540,18 +538,12 @@ static int ade7754_probe(struct spi_device *spi) /* Get the device into a sane initial state */ ret = ade7754_initial_setup(indio_dev); if (ret) - goto error_free_dev; + return ret; ret = iio_device_register(indio_dev); if (ret) - goto error_free_dev; + return ret; return 0; - -error_free_dev: - iio_device_free(indio_dev); - -error_ret: - return ret; } /* fixme, confirm ordering in this function */ @@ -561,7 +553,6 @@ static int ade7754_remove(struct spi_device *spi) iio_device_unregister(indio_dev); ade7754_stop_device(&indio_dev->dev); - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c index 6005d4a..cba183e 100644 --- a/drivers/staging/iio/meter/ade7758_core.c +++ b/drivers/staging/iio/meter/ade7758_core.c @@ -269,9 +269,9 @@ static ssize_t ade7758_write_8bit(struct device *dev, { struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret; - long val; + u8 val; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou8(buf, 10, &val); if (ret) goto error_ret; ret = ade7758_spi_write_reg_8(dev, this_attr->address, val); @@ -287,9 +287,9 @@ static ssize_t ade7758_write_16bit(struct device *dev, { struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret; - long val; + u16 val; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou16(buf, 10, &val); if (ret) goto error_ret; ret = ade7758_spi_write_reg_16(dev, this_attr->address, val); @@ -502,11 +502,11 @@ static ssize_t ade7758_write_frequency(struct device *dev, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); - unsigned long val; + u16 val; int ret; u8 reg, t; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou16(buf, 10, &val); if (ret) return ret; @@ -849,12 +849,11 @@ static int ade7758_probe(struct spi_device *spi) { int ret; struct ade7758_state *st; - struct iio_dev *indio_dev = iio_device_alloc(sizeof(*st)); + struct iio_dev *indio_dev; - if (indio_dev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!indio_dev) + return -ENOMEM; st = iio_priv(indio_dev); /* this is only used for removal purposes */ @@ -862,10 +861,8 @@ static int ade7758_probe(struct spi_device *spi) /* Allocate the comms buffers */ st->rx = kcalloc(ADE7758_MAX_RX, sizeof(*st->rx), GFP_KERNEL); - if (st->rx == NULL) { - ret = -ENOMEM; - goto error_free_dev; - } + if (!st->rx) + return -ENOMEM; st->tx = kcalloc(ADE7758_MAX_TX, sizeof(*st->tx), GFP_KERNEL); if (st->tx == NULL) { ret = -ENOMEM; @@ -920,9 +917,6 @@ error_free_tx: kfree(st->tx); error_free_rx: kfree(st->rx); -error_free_dev: - iio_device_free(indio_dev); -error_ret: return ret; } @@ -939,8 +933,6 @@ static int ade7758_remove(struct spi_device *spi) kfree(st->tx); kfree(st->rx); - iio_device_free(indio_dev); - return 0; } diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c index 7d5db71..4080995 100644 --- a/drivers/staging/iio/meter/ade7758_ring.c +++ b/drivers/staging/iio/meter/ade7758_ring.c @@ -69,11 +69,7 @@ static irqreturn_t ade7758_trigger_handler(int irq, void *p) if (ade7758_spi_read_burst(indio_dev) >= 0) *dat32 = get_unaligned_be32(&st->rx_buf[5]) & 0xFFFFFF; - /* Guaranteed to be aligned with 8 byte boundary */ - if (indio_dev->scan_timestamp) - dat64[1] = pf->timestamp; - - iio_push_to_buffers(indio_dev, (u8 *)dat64); + iio_push_to_buffers_with_timestamp(indio_dev, dat64, pf->timestamp); iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c index d214ac49..145f896 100644 --- a/drivers/staging/iio/meter/ade7759.c +++ b/drivers/staging/iio/meter/ade7759.c @@ -185,9 +185,9 @@ static ssize_t ade7759_write_8bit(struct device *dev, { struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret; - long val; + u8 val; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou8(buf, 10, &val); if (ret) goto error_ret; ret = ade7759_spi_write_reg_8(dev, this_attr->address, val); @@ -203,9 +203,9 @@ static ssize_t ade7759_write_16bit(struct device *dev, { struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret; - long val; + u16 val; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou16(buf, 10, &val); if (ret) goto error_ret; ret = ade7759_spi_write_reg_16(dev, this_attr->address, val); @@ -360,11 +360,11 @@ static ssize_t ade7759_write_frequency(struct device *dev, { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct ade7759_state *st = iio_priv(indio_dev); - unsigned long val; + u16 val; int ret; u16 reg, t; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou16(buf, 10, &val); if (ret) return ret; if (val == 0) @@ -444,11 +444,9 @@ static int ade7759_probe(struct spi_device *spi) struct iio_dev *indio_dev; /* setup the industrialio driver allocated elements */ - indio_dev = iio_device_alloc(sizeof(*st)); - if (indio_dev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!indio_dev) + return -ENOMEM; /* this is only used for removal purposes */ spi_set_drvdata(spi, indio_dev); @@ -463,18 +461,13 @@ static int ade7759_probe(struct spi_device *spi) /* Get the device into a sane initial state */ ret = ade7759_initial_setup(indio_dev); if (ret) - goto error_free_dev; + return ret; ret = iio_device_register(indio_dev); if (ret) - goto error_free_dev; + return ret; return 0; - -error_free_dev: - iio_device_free(indio_dev); -error_ret: - return ret; } /* fixme, confirm ordering in this function */ @@ -484,7 +477,6 @@ static int ade7759_remove(struct spi_device *spi) iio_device_unregister(indio_dev); ade7759_stop_device(&indio_dev->dev); - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/meter/ade7854-i2c.c b/drivers/staging/iio/meter/ade7854-i2c.c index db9ef6c..5b33c7f 100644 --- a/drivers/staging/iio/meter/ade7854-i2c.c +++ b/drivers/staging/iio/meter/ade7854-i2c.c @@ -208,7 +208,7 @@ static int ade7854_i2c_probe(struct i2c_client *client, struct ade7854_state *st; struct iio_dev *indio_dev; - indio_dev = iio_device_alloc(sizeof(*st)); + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st)); if (indio_dev == NULL) return -ENOMEM; st = iio_priv(indio_dev); @@ -225,8 +225,6 @@ static int ade7854_i2c_probe(struct i2c_client *client, st->irq = client->irq; ret = ade7854_probe(indio_dev, &client->dev); - if (ret) - iio_device_free(indio_dev); return ret; } diff --git a/drivers/staging/iio/meter/ade7854-spi.c b/drivers/staging/iio/meter/ade7854-spi.c index a802cf2..7cb8d93 100644 --- a/drivers/staging/iio/meter/ade7854-spi.c +++ b/drivers/staging/iio/meter/ade7854-spi.c @@ -278,7 +278,7 @@ static int ade7854_spi_probe(struct spi_device *spi) struct ade7854_state *st; struct iio_dev *indio_dev; - indio_dev = iio_device_alloc(sizeof(*st)); + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); if (indio_dev == NULL) return -ENOMEM; st = iio_priv(indio_dev); @@ -296,8 +296,6 @@ static int ade7854_spi_probe(struct spi_device *spi) ret = ade7854_probe(indio_dev, &spi->dev); - if (ret) - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/meter/ade7854.c b/drivers/staging/iio/meter/ade7854.c index e8379c0..d620bbd 100644 --- a/drivers/staging/iio/meter/ade7854.c +++ b/drivers/staging/iio/meter/ade7854.c @@ -100,9 +100,9 @@ static ssize_t ade7854_write_8bit(struct device *dev, struct ade7854_state *st = iio_priv(indio_dev); int ret; - long val; + u8 val; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou8(buf, 10, &val); if (ret) goto error_ret; ret = st->write_reg_8(dev, this_attr->address, val); @@ -121,9 +121,9 @@ static ssize_t ade7854_write_16bit(struct device *dev, struct ade7854_state *st = iio_priv(indio_dev); int ret; - long val; + u16 val; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou16(buf, 10, &val); if (ret) goto error_ret; ret = st->write_reg_16(dev, this_attr->address, val); @@ -142,9 +142,9 @@ static ssize_t ade7854_write_24bit(struct device *dev, struct ade7854_state *st = iio_priv(indio_dev); int ret; - long val; + u32 val; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou32(buf, 10, &val); if (ret) goto error_ret; ret = st->write_reg_24(dev, this_attr->address, val); @@ -163,9 +163,9 @@ static ssize_t ade7854_write_32bit(struct device *dev, struct ade7854_state *st = iio_priv(indio_dev); int ret; - long val; + u32 val; - ret = strict_strtol(buf, 10, &val); + ret = kstrtou32(buf, 10, &val); if (ret) goto error_ret; ret = st->write_reg_32(dev, this_attr->address, val); @@ -550,7 +550,7 @@ int ade7854_probe(struct iio_dev *indio_dev, struct device *dev) ret = iio_device_register(indio_dev); if (ret) - goto error_free_dev; + return ret; /* Get the device into a sane initial state */ ret = ade7854_initial_setup(indio_dev); @@ -561,9 +561,6 @@ int ade7854_probe(struct iio_dev *indio_dev, struct device *dev) error_unreg_dev: iio_device_unregister(indio_dev); -error_free_dev: - iio_device_free(indio_dev); - return ret; } EXPORT_SYMBOL(ade7854_probe); @@ -571,7 +568,6 @@ EXPORT_SYMBOL(ade7854_probe); int ade7854_remove(struct iio_dev *indio_dev) { iio_device_unregister(indio_dev); - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/resolver/ad2s1200.c b/drivers/staging/iio/resolver/ad2s1200.c index 7122116..62d3017 100644 --- a/drivers/staging/iio/resolver/ad2s1200.c +++ b/drivers/staging/iio/resolver/ad2s1200.c @@ -107,16 +107,16 @@ static int ad2s1200_probe(struct spi_device *spi) unsigned short *pins = spi->dev.platform_data; for (pn = 0; pn < AD2S1200_PN; pn++) - if (gpio_request_one(pins[pn], GPIOF_DIR_OUT, DRV_NAME)) { - pr_err("%s: request gpio pin %d failed\n", - DRV_NAME, pins[pn]); - goto error_ret; + ret = devm_gpio_request_one(&spi->dev, pins[pn], GPIOF_DIR_OUT, + DRV_NAME); + if (ret) { + dev_err(&spi->dev, "request gpio pin %d failed\n", + pins[pn]); + return ret; } - indio_dev = iio_device_alloc(sizeof(*st)); - if (indio_dev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!indio_dev) + return -ENOMEM; spi_set_drvdata(spi, indio_dev); st = iio_priv(indio_dev); mutex_init(&st->lock); @@ -133,26 +133,18 @@ static int ad2s1200_probe(struct spi_device *spi) ret = iio_device_register(indio_dev); if (ret) - goto error_free_dev; + return ret; spi->max_speed_hz = AD2S1200_HZ; spi->mode = SPI_MODE_3; spi_setup(spi); return 0; - -error_free_dev: - iio_device_free(indio_dev); -error_ret: - for (--pn; pn >= 0; pn--) - gpio_free(pins[pn]); - return ret; } static int ad2s1200_remove(struct spi_device *spi) { iio_device_unregister(spi_get_drvdata(spi)); - iio_device_free(spi_get_drvdata(spi)); return 0; } diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c index dcdadbb..6966d5f 100644 --- a/drivers/staging/iio/resolver/ad2s1210.c +++ b/drivers/staging/iio/resolver/ad2s1210.c @@ -206,10 +206,10 @@ static ssize_t ad2s1210_store_fclkin(struct device *dev, size_t len) { struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev)); - unsigned long fclkin; + unsigned int fclkin; int ret; - ret = strict_strtoul(buf, 10, &fclkin); + ret = kstrtouint(buf, 10, &fclkin); if (ret) return ret; if (fclkin < AD2S1210_MIN_CLKIN || fclkin > AD2S1210_MAX_CLKIN) { @@ -243,10 +243,10 @@ static ssize_t ad2s1210_store_fexcit(struct device *dev, const char *buf, size_t len) { struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev)); - unsigned long fexcit; + unsigned int fexcit; int ret; - ret = strict_strtoul(buf, 10, &fexcit); + ret = kstrtouint(buf, 10, &fexcit); if (ret < 0) return ret; if (fexcit < AD2S1210_MIN_EXCIT || fexcit > AD2S1210_MAX_EXCIT) { @@ -282,11 +282,11 @@ static ssize_t ad2s1210_store_control(struct device *dev, const char *buf, size_t len) { struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev)); - unsigned long udata; + unsigned char udata; unsigned char data; int ret; - ret = strict_strtoul(buf, 16, &udata); + ret = kstrtou8(buf, 16, &udata); if (ret) return -EINVAL; @@ -337,10 +337,10 @@ static ssize_t ad2s1210_store_resolution(struct device *dev, { struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev)); unsigned char data; - unsigned long udata; + unsigned char udata; int ret; - ret = strict_strtoul(buf, 10, &udata); + ret = kstrtou8(buf, 10, &udata); if (ret || udata < 10 || udata > 16) { pr_err("ad2s1210: resolution out of range\n"); return -EINVAL; @@ -438,11 +438,11 @@ static ssize_t ad2s1210_store_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev)); - unsigned long data; + unsigned char data; int ret; struct iio_dev_attr *iattr = to_iio_dev_attr(attr); - ret = strict_strtoul(buf, 10, &data); + ret = kstrtou8(buf, 10, &data); if (ret) return -EINVAL; mutex_lock(&st->lock); @@ -669,16 +669,14 @@ static int ad2s1210_probe(struct spi_device *spi) if (spi->dev.platform_data == NULL) return -EINVAL; - indio_dev = iio_device_alloc(sizeof(*st)); - if (indio_dev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!indio_dev) + return -ENOMEM; st = iio_priv(indio_dev); st->pdata = spi->dev.platform_data; ret = ad2s1210_setup_gpios(st); if (ret < 0) - goto error_free_dev; + return ret; spi_set_drvdata(spi, indio_dev); @@ -709,9 +707,6 @@ static int ad2s1210_probe(struct spi_device *spi) error_free_gpios: ad2s1210_free_gpios(st); -error_free_dev: - iio_device_free(indio_dev); -error_ret: return ret; } @@ -721,7 +716,6 @@ static int ad2s1210_remove(struct spi_device *spi) iio_device_unregister(indio_dev); ad2s1210_free_gpios(iio_priv(indio_dev)); - iio_device_free(indio_dev); return 0; } diff --git a/drivers/staging/iio/resolver/ad2s90.c b/drivers/staging/iio/resolver/ad2s90.c index 40b8252..e24c589 100644 --- a/drivers/staging/iio/resolver/ad2s90.c +++ b/drivers/staging/iio/resolver/ad2s90.c @@ -64,11 +64,9 @@ static int ad2s90_probe(struct spi_device *spi) struct ad2s90_state *st; int ret = 0; - indio_dev = iio_device_alloc(sizeof(*st)); - if (indio_dev == NULL) { - ret = -ENOMEM; - goto error_ret; - } + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!indio_dev) + return -ENOMEM; st = iio_priv(indio_dev); spi_set_drvdata(spi, indio_dev); @@ -83,7 +81,7 @@ static int ad2s90_probe(struct spi_device *spi) ret = iio_device_register(indio_dev); if (ret) - goto error_free_dev; + return ret; /* need 600ns between CS and the first falling edge of SCLK */ spi->max_speed_hz = 830000; @@ -91,17 +89,11 @@ static int ad2s90_probe(struct spi_device *spi) spi_setup(spi); return 0; - -error_free_dev: - iio_device_free(indio_dev); -error_ret: - return ret; } static int ad2s90_remove(struct spi_device *spi) { iio_device_unregister(spi_get_drvdata(spi)); - iio_device_free(spi_get_drvdata(spi)); return 0; } diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c index 38a158b..ebb189c 100644 --- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c +++ b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c @@ -83,32 +83,28 @@ static ssize_t iio_bfin_tmr_frequency_store(struct device *dev, { struct iio_trigger *trig = to_iio_trigger(dev); struct bfin_tmr_state *st = iio_trigger_get_drvdata(trig); - unsigned long val; + unsigned int val; bool enabled; int ret; - ret = strict_strtoul(buf, 10, &val); + ret = kstrtouint(buf, 10, &val); if (ret) - goto error_ret; + return ret; if (val > 100000) { - ret = -EINVAL; - goto error_ret; - } + return -EINVAL; enabled = get_enabled_gptimers() & st->t->bit; if (enabled) disable_gptimers(st->t->bit); - if (!val) - goto error_ret; + if (val == 0) + return count; val = get_sclk() / val; - if (val <= 4 || val <= st->duty) { - ret = -EINVAL; - goto error_ret; - } + if (val <= 4 || val <= st->duty) + return -EINVAL; set_gptimer_period(st->t->id, val); set_gptimer_pwidth(st->t->id, val - st->duty); @@ -116,8 +112,7 @@ static ssize_t iio_bfin_tmr_frequency_store(struct device *dev, if (enabled) enable_gptimers(st->t->bit); -error_ret: - return ret ? ret : count; + return count; } static ssize_t iio_bfin_tmr_frequency_show(struct device *dev, diff --git a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c index 7969597..48a6afa 100644 --- a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c +++ b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c @@ -53,10 +53,10 @@ static ssize_t iio_trig_periodic_write_freq(struct device *dev, { struct iio_trigger *trig = to_iio_trigger(dev); struct iio_prtc_trigger_info *trig_info = iio_trigger_get_drvdata(trig); - unsigned long val; + int val; int ret; - ret = strict_strtoul(buf, 10, &val); + ret = kstrtoint(buf, 10, &val); if (ret) goto error_ret; diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h index 2bac0eb..a1124bd 100644 --- a/include/linux/iio/buffer.h +++ b/include/linux/iio/buffer.h @@ -36,7 +36,7 @@ struct iio_buffer; * any of them not existing. **/ struct iio_buffer_access_funcs { - int (*store_to)(struct iio_buffer *buffer, u8 *data); + int (*store_to)(struct iio_buffer *buffer, const void *data); int (*read_first_n)(struct iio_buffer *buffer, size_t n, char __user *buf); @@ -81,7 +81,7 @@ struct iio_buffer { bool stufftoread; const struct attribute_group *attrs; struct list_head demux_list; - unsigned char *demux_bounce; + void *demux_bounce; struct list_head buffer_list; }; @@ -120,7 +120,32 @@ int iio_scan_mask_set(struct iio_dev *indio_dev, * @indio_dev: iio_dev structure for device. * @data: Full scan. */ -int iio_push_to_buffers(struct iio_dev *indio_dev, unsigned char *data); +int iio_push_to_buffers(struct iio_dev *indio_dev, const void *data); + +/* + * iio_push_to_buffers_with_timestamp() - push data and timestamp to buffers + * @indio_dev: iio_dev structure for device. + * @data: sample data + * @timestamp: timestamp for the sample data + * + * Pushes data to the IIO device's buffers. If timestamps are enabled for the + * device the function will store the supplied timestamp as the last element in + * the sample data buffer before pushing it to the device buffers. The sample + * data buffer needs to be large enough to hold the additional timestamp + * (usually the buffer should be indio->scan_bytes bytes large). + * + * Returns 0 on success, a negative error code otherwise. + */ +static inline int iio_push_to_buffers_with_timestamp(struct iio_dev *indio_dev, + void *data, int64_t timestamp) +{ + if (indio_dev->scan_timestamp) { + size_t ts_offset = indio_dev->scan_bytes / sizeof(int64_t) - 1; + ((int64_t *)data)[ts_offset] = timestamp; + } + + return iio_push_to_buffers(indio_dev, data); +} int iio_update_demux(struct iio_dev *indio_dev); diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h index e51f654..e732fda 100644 --- a/include/linux/iio/common/st_sensors.h +++ b/include/linux/iio/common/st_sensors.h @@ -184,6 +184,7 @@ struct st_sensors { u8 wai; char sensors_supported[ST_SENSORS_MAX_4WAI][ST_SENSORS_MAX_NAME]; struct iio_chan_spec *ch; + int num_ch; struct st_sensor_odr odr; struct st_sensor_power pw; struct st_sensor_axis enable_axis; diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h index 833926c..2752b1f 100644 --- a/include/linux/iio/consumer.h +++ b/include/linux/iio/consumer.h @@ -77,7 +77,7 @@ struct iio_cb_buffer; * fail. */ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev, - int (*cb)(u8 *data, + int (*cb)(const void *data, void *private), void *private); /** diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index 2103cc3..ac1cb8f 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -36,6 +36,14 @@ enum iio_chan_info_enum { IIO_CHAN_INFO_PHASE, IIO_CHAN_INFO_HARDWAREGAIN, IIO_CHAN_INFO_HYSTERESIS, + IIO_CHAN_INFO_INT_TIME, +}; + +enum iio_shared_by { + IIO_SEPARATE, + IIO_SHARED_BY_TYPE, + IIO_SHARED_BY_DIR, + IIO_SHARED_BY_ALL }; enum iio_endian { @@ -57,7 +65,7 @@ struct iio_dev; */ struct iio_chan_spec_ext_info { const char *name; - bool shared; + enum iio_shared_by shared; ssize_t (*read)(struct iio_dev *, uintptr_t private, struct iio_chan_spec const *, char *buf); ssize_t (*write)(struct iio_dev *, uintptr_t private, @@ -125,7 +133,7 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev, #define IIO_ENUM_AVAILABLE(_name, _e) \ { \ .name = (_name "_available"), \ - .shared = true, \ + .shared = IIO_SHARED_BY_TYPE, \ .read = iio_enum_available_read, \ .private = (uintptr_t)(_e), \ } @@ -146,12 +154,14 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev, * shift: Shift right by this before masking out * realbits. * endianness: little or big endian - * @info_mask: What information is to be exported about this channel. - * This includes calibbias, scale etc. * @info_mask_separate: What information is to be exported that is specific to * this channel. * @info_mask_shared_by_type: What information is to be exported that is shared -* by all channels of the same type. + * by all channels of the same type. + * @info_mask_shared_by_dir: What information is to be exported that is shared + * by all channels of the same direction. + * @info_mask_shared_by_all: What information is to be exported that is shared + * by all channels. * @event_mask: What events can this channel produce. * @ext_info: Array of extended info attributes for this channel. * The array is NULL terminated, the last element should @@ -186,9 +196,10 @@ struct iio_chan_spec { u8 shift; enum iio_endian endianness; } scan_type; - long info_mask; long info_mask_separate; long info_mask_shared_by_type; + long info_mask_shared_by_dir; + long info_mask_shared_by_all; long event_mask; const struct iio_chan_spec_ext_info *ext_info; const char *extend_name; @@ -212,7 +223,9 @@ static inline bool iio_channel_has_info(const struct iio_chan_spec *chan, enum iio_chan_info_enum type) { return (chan->info_mask_separate & BIT(type)) | - (chan->info_mask_shared_by_type & BIT(type)); + (chan->info_mask_shared_by_type & BIT(type)) | + (chan->info_mask_shared_by_dir & BIT(type)) | + (chan->info_mask_shared_by_all & BIT(type)); } #define IIO_ST(si, rb, sb, sh) \ @@ -457,7 +470,7 @@ static inline void iio_device_put(struct iio_dev *indio_dev) { if (indio_dev) put_device(&indio_dev->dev); -}; +} /** * dev_to_iio_dev() - Get IIO device struct from a device struct @@ -593,7 +606,7 @@ static inline bool iio_buffer_enabled(struct iio_dev *indio_dev) { return indio_dev->currentmode & (INDIO_BUFFER_TRIGGERED | INDIO_BUFFER_HARDWARE); -}; +} /** * iio_get_debugfs_dentry() - helper function to get the debugfs_dentry @@ -603,12 +616,12 @@ static inline bool iio_buffer_enabled(struct iio_dev *indio_dev) static inline struct dentry *iio_get_debugfs_dentry(struct iio_dev *indio_dev) { return indio_dev->debugfs_dentry; -}; +} #else static inline struct dentry *iio_get_debugfs_dentry(struct iio_dev *indio_dev) { return NULL; -}; +} #endif int iio_str_to_fixpoint(const char *str, int fract_mult, int *integer, diff --git a/include/linux/iio/sysfs.h b/include/linux/iio/sysfs.h index 2958c96..8a1d186 100644 --- a/include/linux/iio/sysfs.h +++ b/include/linux/iio/sysfs.h @@ -100,6 +100,21 @@ struct iio_const_attr { #define IIO_CONST_ATTR_SAMP_FREQ_AVAIL(_string) \ IIO_CONST_ATTR(sampling_frequency_available, _string) +/** + * IIO_DEV_ATTR_INT_TIME_AVAIL - list available integration times + * @_show: output method for the attribute + **/ +#define IIO_DEV_ATTR_INT_TIME_AVAIL(_show) \ + IIO_DEVICE_ATTR(integration_time_available, S_IRUGO, _show, NULL, 0) +/** + * IIO_CONST_ATTR_INT_TIME_AVAIL - list available integration times + * @_string: frequency string for the attribute + * + * Constant version + **/ +#define IIO_CONST_ATTR_INT_TIME_AVAIL(_string) \ + IIO_CONST_ATTR(integration_time_available, _string) + #define IIO_DEV_ATTR_TEMP_RAW(_show) \ IIO_DEVICE_ATTR(in_temp_raw, S_IRUGO, _show, NULL, 0) diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h index 25f2c61..08cce7f 100644 --- a/include/linux/mfd/ti_am335x_tscadc.h +++ b/include/linux/mfd/ti_am335x_tscadc.h @@ -46,16 +46,24 @@ /* Step Enable */ #define STEPENB_MASK (0x1FFFF << 0) #define STEPENB(val) ((val) << 0) +#define ENB(val) (1 << (val)) +#define STPENB_STEPENB STEPENB(0x1FFFF) +#define STPENB_STEPENB_TC STEPENB(0x1FFF) /* IRQ enable */ #define IRQENB_HW_PEN BIT(0) #define IRQENB_FIFO0THRES BIT(2) +#define IRQENB_FIFO0OVRRUN BIT(3) +#define IRQENB_FIFO0UNDRFLW BIT(4) #define IRQENB_FIFO1THRES BIT(5) +#define IRQENB_FIFO1OVRRUN BIT(6) +#define IRQENB_FIFO1UNDRFLW BIT(7) #define IRQENB_PENUP BIT(9) /* Step Configuration */ #define STEPCONFIG_MODE_MASK (3 << 0) #define STEPCONFIG_MODE(val) ((val) << 0) +#define STEPCONFIG_MODE_SWCNT STEPCONFIG_MODE(1) #define STEPCONFIG_MODE_HWSYNC STEPCONFIG_MODE(2) #define STEPCONFIG_AVG_MASK (7 << 2) #define STEPCONFIG_AVG(val) ((val) << 2) @@ -123,6 +131,7 @@ #define ADC_CLK 3000000 #define TOTAL_STEPS 16 #define TOTAL_CHANNELS 8 +#define FIFO1_THRESHOLD 19 /* * ADC runs at 3MHz, and it takes |
