diff options
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/iio/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/staging/iio/Makefile | 1 | ||||
| -rw-r--r-- | drivers/staging/iio/TODO | 8 | ||||
| -rw-r--r-- | drivers/staging/iio/light/isl29018.c | 28 | ||||
| -rw-r--r-- | drivers/staging/iio/magnetometer/Kconfig | 40 | ||||
| -rw-r--r-- | drivers/staging/iio/magnetometer/Makefile | 7 | ||||
| -rw-r--r-- | drivers/staging/iio/magnetometer/hmc5843.h | 65 | ||||
| -rw-r--r-- | drivers/staging/iio/magnetometer/hmc5843_core.c | 646 | ||||
| -rw-r--r-- | drivers/staging/iio/magnetometer/hmc5843_i2c.c | 103 | ||||
| -rw-r--r-- | drivers/staging/iio/magnetometer/hmc5843_spi.c | 100 | ||||
| -rw-r--r-- | drivers/staging/iio/trigger/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/staging/iio/trigger/Makefile | 1 | ||||
| -rw-r--r-- | drivers/staging/iio/trigger/iio-trig-periodic-rtc.c | 216 |
13 files changed, 15 insertions, 1211 deletions
diff --git a/drivers/staging/iio/Kconfig b/drivers/staging/iio/Kconfig index 0e044cb..8abc1ab 100644 --- a/drivers/staging/iio/Kconfig +++ b/drivers/staging/iio/Kconfig @@ -12,7 +12,6 @@ source "drivers/staging/iio/frequency/Kconfig" source "drivers/staging/iio/gyro/Kconfig" source "drivers/staging/iio/impedance-analyzer/Kconfig" source "drivers/staging/iio/light/Kconfig" -source "drivers/staging/iio/magnetometer/Kconfig" source "drivers/staging/iio/meter/Kconfig" source "drivers/staging/iio/resolver/Kconfig" source "drivers/staging/iio/trigger/Kconfig" diff --git a/drivers/staging/iio/Makefile b/drivers/staging/iio/Makefile index 3e616b4..0cfd05d 100644 --- a/drivers/staging/iio/Makefile +++ b/drivers/staging/iio/Makefile @@ -10,7 +10,6 @@ obj-y += frequency/ obj-y += gyro/ obj-y += impedance-analyzer/ obj-y += light/ -obj-y += magnetometer/ obj-y += meter/ obj-y += resolver/ obj-y += trigger/ diff --git a/drivers/staging/iio/TODO b/drivers/staging/iio/TODO index c22a0ed..93a8968 100644 --- a/drivers/staging/iio/TODO +++ b/drivers/staging/iio/TODO @@ -58,14 +58,6 @@ different requirements. This one suits mid range frequencies (100Hz - 4kHz). 2) Lots of testing -Periodic Timer trigger -1) Move to a more general hardware periodic timer request -subsystem. Current approach is abusing purpose of RTC. -Initial discussions have taken place, but no actual code -is in place as yet. This topic will be reopened on lkml -shortly. I don't really envision this patch being merged -in anything like its current form. - GPIO trigger 1) Add control over the type of interrupt etc. This will necessitate a header that is also visible from arch board diff --git a/drivers/staging/iio/light/isl29018.c b/drivers/staging/iio/light/isl29018.c index 03dbfb6..76d9f74 100644 --- a/drivers/staging/iio/light/isl29018.c +++ b/drivers/staging/iio/light/isl29018.c @@ -100,7 +100,6 @@ static const struct isl29018_scale { }; struct isl29018_chip { - struct device *dev; struct regmap *regmap; struct mutex lock; int type; @@ -180,30 +179,31 @@ static int isl29018_read_sensor_input(struct isl29018_chip *chip, int mode) int status; unsigned int lsb; unsigned int msb; + struct device *dev = regmap_get_device(chip->regmap); /* Set mode */ status = regmap_write(chip->regmap, ISL29018_REG_ADD_COMMAND1, mode << COMMMAND1_OPMODE_SHIFT); if (status) { - dev_err(chip->dev, + dev_err(dev, "Error in setting operating mode err %d\n", status); return status; } msleep(CONVERSION_TIME_MS); status = regmap_read(chip->regmap, ISL29018_REG_ADD_DATA_LSB, &lsb); if (status < 0) { - dev_err(chip->dev, + dev_err(dev, "Error in reading LSB DATA with err %d\n", status); return status; } status = regmap_read(chip->regmap, ISL29018_REG_ADD_DATA_MSB, &msb); if (status < 0) { - dev_err(chip->dev, + dev_err(dev, "Error in reading MSB DATA with error %d\n", status); return status; } - dev_vdbg(chip->dev, "MSB 0x%x and LSB 0x%x\n", msb, lsb); + dev_vdbg(dev, "MSB 0x%x and LSB 0x%x\n", msb, lsb); return (msb << 8) | lsb; } @@ -246,13 +246,14 @@ static int isl29018_read_proximity_ir(struct isl29018_chip *chip, int scheme, int status; int prox_data = -1; int ir_data = -1; + struct device *dev = regmap_get_device(chip->regmap); /* Do proximity sensing with required scheme */ status = regmap_update_bits(chip->regmap, ISL29018_REG_ADD_COMMANDII, COMMANDII_SCHEME_MASK, scheme << COMMANDII_SCHEME_SHIFT); if (status) { - dev_err(chip->dev, "Error in setting operating mode\n"); + dev_err(dev, "Error in setting operating mode\n"); return status; } @@ -525,10 +526,11 @@ static int isl29035_detect(struct isl29018_chip *chip) { int status; unsigned int id; + struct device *dev = regmap_get_device(chip->regmap); status = regmap_read(chip->regmap, ISL29035_REG_DEVICE_ID, &id); if (status < 0) { - dev_err(chip->dev, + dev_err(dev, "Error reading ID register with error %d\n", status); return status; @@ -553,6 +555,7 @@ enum { static int isl29018_chip_init(struct isl29018_chip *chip) { int status; + struct device *dev = regmap_get_device(chip->regmap); if (chip->type == isl29035) { status = isl29035_detect(chip); @@ -582,7 +585,7 @@ static int isl29018_chip_init(struct isl29018_chip *chip) */ status = regmap_write(chip->regmap, ISL29018_REG_TEST, 0x0); if (status < 0) { - dev_err(chip->dev, "Failed to clear isl29018 TEST reg.(%d)\n", + dev_err(dev, "Failed to clear isl29018 TEST reg.(%d)\n", status); return status; } @@ -593,7 +596,7 @@ static int isl29018_chip_init(struct isl29018_chip *chip) */ status = regmap_write(chip->regmap, ISL29018_REG_ADD_COMMAND1, 0); if (status < 0) { - dev_err(chip->dev, "Failed to clear isl29018 CMD1 reg.(%d)\n", + dev_err(dev, "Failed to clear isl29018 CMD1 reg.(%d)\n", status); return status; } @@ -604,14 +607,14 @@ static int isl29018_chip_init(struct isl29018_chip *chip) status = isl29018_set_scale(chip, chip->scale.scale, chip->scale.uscale); if (status < 0) { - dev_err(chip->dev, "Init of isl29018 fails\n"); + dev_err(dev, "Init of isl29018 fails\n"); return status; } status = isl29018_set_integration_time(chip, isl29018_int_utimes[chip->type][chip->int_time]); if (status < 0) { - dev_err(chip->dev, "Init of isl29018 fails\n"); + dev_err(dev, "Init of isl29018 fails\n"); return status; } @@ -728,7 +731,6 @@ static int isl29018_probe(struct i2c_client *client, chip = iio_priv(indio_dev); i2c_set_clientdata(client, indio_dev); - chip->dev = &client->dev; if (id) { name = id->name; @@ -751,7 +753,7 @@ static int isl29018_probe(struct i2c_client *client, chip_info_tbl[dev_id].regmap_cfg); if (IS_ERR(chip->regmap)) { err = PTR_ERR(chip->regmap); - dev_err(chip->dev, "regmap initialization failed: %d\n", err); + dev_err(&client->dev, "regmap initialization fails: %d\n", err); return err; } diff --git a/drivers/staging/iio/magnetometer/Kconfig b/drivers/staging/iio/magnetometer/Kconfig deleted file mode 100644 index dec814a..0000000 --- a/drivers/staging/iio/magnetometer/Kconfig +++ /dev/null @@ -1,40 +0,0 @@ -# -# Magnetometer sensors -# -menu "Magnetometer sensors" - -config SENSORS_HMC5843 - tristate - select IIO_BUFFER - select IIO_TRIGGERED_BUFFER - -config SENSORS_HMC5843_I2C - tristate "Honeywell HMC5843/5883/5883L 3-Axis Magnetometer (I2C)" - depends on I2C - select SENSORS_HMC5843 - select REGMAP_I2C - help - Say Y here to add support for the Honeywell HMC5843, HMC5883 and - HMC5883L 3-Axis Magnetometer (digital compass). - - This driver can also be compiled as a set of modules. - If so, these modules will be created: - - hmc5843_core (core functions) - - hmc5843_i2c (support for HMC5843, HMC5883, HMC5883L and HMC5983) - -config SENSORS_HMC5843_SPI - tristate "Honeywell HMC5983 3-Axis Magnetometer (SPI)" - depends on SPI_MASTER - select SENSORS_HMC5843 - select REGMAP_SPI - help - Say Y here to add support for the Honeywell HMC5983 3-Axis Magnetometer - (digital compass). - - This driver can also be compiled as a set of modules. - If so, these modules will be created: - - hmc5843_core (core functions) - - hmc5843_spi (support for HMC5983) - - -endmenu diff --git a/drivers/staging/iio/magnetometer/Makefile b/drivers/staging/iio/magnetometer/Makefile deleted file mode 100644 index 33761a1..0000000 --- a/drivers/staging/iio/magnetometer/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# -# Makefile for industrial I/O Magnetometer sensors -# - -obj-$(CONFIG_SENSORS_HMC5843) += hmc5843_core.o -obj-$(CONFIG_SENSORS_HMC5843_I2C) += hmc5843_i2c.o -obj-$(CONFIG_SENSORS_HMC5843_SPI) += hmc5843_spi.o diff --git a/drivers/staging/iio/magnetometer/hmc5843.h b/drivers/staging/iio/magnetometer/hmc5843.h deleted file mode 100644 index 76a5d74..0000000 --- a/drivers/staging/iio/magnetometer/hmc5843.h +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Header file for hmc5843 driver - * - * Split from hmc5843.c - * Copyright (C) Josef Gajdusek <atx@atx.name> - * - * 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. - */ - -#ifndef HMC5843_CORE_H -#define HMC5843_CORE_H - -#include <linux/regmap.h> -#include <linux/iio/iio.h> - -#define HMC5843_CONFIG_REG_A 0x00 -#define HMC5843_CONFIG_REG_B 0x01 -#define HMC5843_MODE_REG 0x02 -#define HMC5843_DATA_OUT_MSB_REGS 0x03 -#define HMC5843_STATUS_REG 0x09 -#define HMC5843_ID_REG 0x0a -#define HMC5843_ID_END 0x0c - -enum hmc5843_ids { - HMC5843_ID, - HMC5883_ID, - HMC5883L_ID, - HMC5983_ID, -}; - -/** - * struct hcm5843_data - device specific data - * @dev: actual device - * @lock: update and read regmap data - * @regmap: hardware access register maps - * @variant: describe chip variants - * @buffer: 3x 16-bit channels + padding + 64-bit timestamp - */ -struct hmc5843_data { - struct device *dev; - struct mutex lock; - struct regmap *regmap; - const struct hmc5843_chip_info *variant; - __be16 buffer[8]; -}; - -int hmc5843_common_probe(struct device *dev, struct regmap *regmap, - enum hmc5843_ids id, const char *name); -int hmc5843_common_remove(struct device *dev); - -int hmc5843_common_suspend(struct device *dev); -int hmc5843_common_resume(struct device *dev); - -#ifdef CONFIG_PM_SLEEP -static SIMPLE_DEV_PM_OPS(hmc5843_pm_ops, - hmc5843_common_suspend, - hmc5843_common_resume); -#define HMC5843_PM_OPS (&hmc5843_pm_ops) -#else -#define HMC5843_PM_OPS NULL -#endif - -#endif /* HMC5843_CORE_H */ diff --git a/drivers/staging/iio/magnetometer/hmc5843_core.c b/drivers/staging/iio/magnetometer/hmc5843_core.c deleted file mode 100644 index 9ee9a42..0000000 --- a/drivers/staging/iio/magnetometer/hmc5843_core.c +++ /dev/null @@ -1,646 +0,0 @@ -/* - * Device driver for the the HMC5843 multi-chip module designed - * for low field magnetic sensing. - * - * Copyright (C) 2010 Texas Instruments - * - * Author: Shubhrajyoti Datta <shubhrajyoti@ti.com> - * Acknowledgment: Jonathan Cameron <jic23@kernel.org> for valuable inputs. - * Support for HMC5883 and HMC5883L by Peter Meerwald <pmeerw@pmeerw.net>. - * Split to multiple files by Josef Gajdusek <atx@atx.name> - 2014 - * - * 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/module.h> -#include <linux/regmap.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> -#include <linux/delay.h> - -#include "hmc5843.h" - -/* - * Range gain settings in (+-)Ga - * Beware: HMC5843 and HMC5883 have different recommended sensor field - * ranges; default corresponds to +-1.0 Ga and +-1.3 Ga, respectively - */ -#define HMC5843_RANGE_GAIN_OFFSET 0x05 -#define HMC5843_RANGE_GAIN_DEFAULT 0x01 -#define HMC5843_RANGE_GAIN_MASK 0xe0 - -/* Device status */ -#define HMC5843_DATA_READY 0x01 -#define HMC5843_DATA_OUTPUT_LOCK 0x02 - -/* Mode register configuration */ -#define HMC5843_MODE_CONVERSION_CONTINUOUS 0x00 -#define HMC5843_MODE_CONVERSION_SINGLE 0x01 -#define HMC5843_MODE_IDLE 0x02 -#define HMC5843_MODE_SLEEP 0x03 -#define HMC5843_MODE_MASK 0x03 - -/* - * HMC5843: Minimum data output rate - * HMC5883: Typical data output rate - */ -#define HMC5843_RATE_OFFSET 0x02 -#define HMC5843_RATE_DEFAULT 0x04 -#define HMC5843_RATE_MASK 0x1c - -/* Device measurement configuration */ -#define HMC5843_MEAS_CONF_NORMAL 0x00 -#define HMC5843_MEAS_CONF_POSITIVE_BIAS 0x01 -#define HMC5843_MEAS_CONF_NEGATIVE_BIAS 0x02 -#define HMC5843_MEAS_CONF_MASK 0x03 - -/* Scaling factors: 10000000/Gain */ -static const int hmc5843_regval_to_nanoscale[] = { - 6173, 7692, 10309, 12821, 18868, 21739, 25641, 35714 -}; - -static const int hmc5883_regval_to_nanoscale[] = { - 7812, 9766, 13021, 16287, 24096, 27701, 32573, 45662 -}; - -static const int hmc5883l_regval_to_nanoscale[] = { - 7299, 9174, 12195, 15152, 22727, 25641, 30303, 43478 -}; - -/* - * From the datasheet: - * Value | HMC5843 | HMC5883/HMC5883L - * | Data output rate (Hz) | Data output rate (Hz) - * 0 | 0.5 | 0.75 - * 1 | 1 | 1.5 - * 2 | 2 | 3 - * 3 | 5 | 7.5 - * 4 | 10 (default) | 15 - * 5 | 20 | 30 - * 6 | 50 | 75 - * 7 | Not used | Not used - */ -static const int hmc5843_regval_to_samp_freq[][2] = { - {0, 500000}, {1, 0}, {2, 0}, {5, 0}, {10, 0}, {20, 0}, {50, 0} -}; - -static const int hmc5883_regval_to_samp_freq[][2] = { - {0, 750000}, {1, 500000}, {3, 0}, {7, 500000}, {15, 0}, {30, 0}, - {75, 0} -}; - -static const int hmc5983_regval_to_samp_freq[][2] = { - {0, 750000}, {1, 500000}, {3, 0}, {7, 500000}, {15, 0}, {30, 0}, - {75, 0}, {220, 0} -}; - -/* Describe chip variants */ -struct hmc5843_chip_info { - const struct iio_chan_spec *channels; - const int (*regval_to_samp_freq)[2]; - const int n_regval_to_samp_freq; - const int *regval_to_nanoscale; - const int n_regval_to_nanoscale; -}; - -/* The lower two bits contain the current conversion mode */ -static s32 hmc5843_set_mode(struct hmc5843_data *data, u8 operating_mode) -{ - int ret; - - mutex_lock(&data->lock); - ret = regmap_update_bits(data->regmap, HMC5843_MODE_REG, - HMC5843_MODE_MASK, operating_mode); - mutex_unlock(&data->lock); - - return ret; -} - -static int hmc5843_wait_measurement(struct hmc5843_data *data) -{ - int tries = 150; - unsigned int val; - int ret; - - while (tries-- > 0) { - ret = regmap_read(data->regmap, HMC5843_STATUS_REG, &val); - if (ret < 0) - return ret; - if (val & HMC5843_DATA_READY) - break; - msleep(20); - } - - if (tries < 0) { - dev_err(data->dev, "data not ready\n"); - return -EIO; - } - - return 0; -} - -/* Return the measurement value from the specified channel */ -static int hmc5843_read_measurement(struct hmc5843_data *data, - int idx, int *val) -{ - __be16 values[3]; - int ret; - - mutex_lock(&data->lock); - ret = hmc5843_wait_measurement(data); - if (ret < 0) { - mutex_unlock(&data->lock); - return ret; - } - ret = regmap_bulk_read(data->regmap, HMC5843_DATA_OUT_MSB_REGS, - values, sizeof(values)); - mutex_unlock(&data->lock); - if (ret < 0) - return ret; - - *val = sign_extend32(be16_to_cpu(values[idx]), 15); - return IIO_VAL_INT; -} - -/* - * API for setting the measurement configuration to - * Normal, Positive bias and Negative bias - * - * From the datasheet: - * 0 - Normal measurement configuration (default): In normal measurement - * configuration the device follows normal measurement flow. Pins BP - * and BN are left floating and high impedance. - * - * 1 - Positive bias configuration: In positive bias configuration, a - * positive current is forced across the resistive load on pins BP - * and BN. - * - * 2 - Negative bias configuration. In negative bias configuration, a - * negative current is forced across the resistive load on pins BP - * and BN. - * - */ -static int hmc5843_set_meas_conf(struct hmc5843_data *data, u8 meas_conf) -{ - int ret; - - mutex_lock(&data->lock); - ret = regmap_update_bits(data->regmap, HMC5843_CONFIG_REG_A, - HMC5843_MEAS_CONF_MASK, meas_conf); - mutex_unlock(&data->lock); - - return ret; -} - -static -ssize_t hmc5843_show_measurement_configuration(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev)); - unsigned int val; - int ret; - - ret = regmap_read(data->regmap, HMC5843_CONFIG_REG_A, &val); - if (ret) - return ret; - val &= HMC5843_MEAS_CONF_MASK; - - return sprintf(buf, "%d\n", val); -} - -static -ssize_t hmc5843_set_measurement_configuration(struct device *dev, - struct device_attribute *attr, - const char *buf, - size_t count) -{ - struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev)); - unsigned long meas_conf = 0; - int ret; - - ret = kstrtoul(buf, 10, &meas_conf); - if (ret) - return ret; - if (meas_conf >= HMC5843_MEAS_CONF_MASK) - return -EINVAL; - - ret = hmc5843_set_meas_conf(data, meas_conf); - - return (ret < 0) ? ret : count; -} - -static IIO_DEVICE_ATTR(meas_conf, - S_IWUSR | S_IRUGO, - hmc5843_show_measurement_configuration, - hmc5843_set_measurement_configuration, - 0); - -static -ssize_t hmc5843_show_samp_freq_avail(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev)); - size_t len = 0; - int i; - - for (i = 0; i < data->variant->n_regval_to_samp_freq; i++) - len += scnprintf(buf + len, PAGE_SIZE - len, - "%d.%d ", data->variant->regval_to_samp_freq[i][0], - data->variant->regval_to_samp_freq[i][1]); - - /* replace trailing space by newline */ - buf[len - 1] = '\n'; - - return len; -} - -static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(hmc5843_show_samp_freq_avail); - -static int hmc5843_set_samp_freq(struct hmc5843_data *data, u8 rate) -{ - int ret; - - mutex_lock(&data->lock); - ret = regmap_update_bits(data->regmap, HMC5843_CONFIG_REG_A, - HMC5843_RATE_MASK, - rate << HMC5843_RATE_OFFSET); - mutex_unlock(&data->lock); - - return ret; -} - -static int hmc5843_get_samp_freq_index(struct hmc5843_data *data, - int val, int val2) -{ - int i; - - for (i = 0; i < data->variant->n_regval_to_samp_freq; i++) - if (val == data->variant->regval_to_samp_freq[i][0] && - val2 == data->variant->regval_to_samp_freq[i][1]) - return i; - - return -EINVAL; -} - -static int hmc5843_set_range_gain(struct hmc5843_data *data, u8 range) -{ - int ret; - - mutex_lock(&data->lock); - ret = regmap_update_bits(data->regmap, HMC5843_CONFIG_REG_B, - HMC5843_RANGE_GAIN_MASK, - range << HMC5843_RANGE_GAIN_OFFSET); - mutex_unlock(&data->lock); - - return ret; -} - -static ssize_t hmc5843_show_scale_avail(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev)); - - size_t len = 0; - int i; - - for (i = 0; i < data->variant->n_regval_to_nanoscale; i++) - len += scnprintf(buf + len, PAGE_SIZE - len, - "0.%09d ", data->variant->regval_to_nanoscale[i]); - - /* replace trailing space by newline */ - buf[len - 1] = '\n'; - - return len; -} - -static IIO_DEVICE_ATTR(scale_available, S_IRUGO, - hmc5843_show_scale_avail, NULL, 0); - -static int hmc5843_get_scale_index(struct hmc5843_data *data, int val, int val2) -{ - int i; - - if (val) - return -EINVAL; - - for (i = 0; i < data->variant->n_regval_to_nanoscale; i++) - if (val2 == data->variant->regval_to_nanoscale[i]) - return i; - - return -EINVAL; -} - -static int hmc5843_read_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int *val, int *val2, long mask) -{ - struct hmc5843_data *data = iio_priv(indio_dev); - unsigned int rval; - int ret; - - switch (mask) { - case IIO_CHAN_INFO_RAW: - return hmc5843_read_measurement(data, chan->scan_index, val); - case IIO_CHAN_INFO_SCALE: - ret = regmap_read(data->regmap, HMC5843_CONFIG_REG_B, &rval); - if (ret < 0) - return ret; - rval >>= HMC5843_RANGE_GAIN_OFFSET; - *val = 0; - *val2 = data->variant->regval_to_nanoscale[rval]; - return IIO_VAL_INT_PLUS_NANO; - case IIO_CHAN_INFO_SAMP_FREQ: - ret = regmap_read(data->regmap, HMC5843_CONFIG_REG_A, &rval); - if (ret < 0) - return ret; - rval >>= HMC5843_RATE_OFFSET; - *val = data->variant->regval_to_samp_freq[rval][0]; - *val2 = data->variant->regval_to_samp_freq[rval][1]; - return IIO_VAL_INT_PLUS_MICRO; - } - return -EINVAL; -} - -static int hmc5843_write_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int val, int val2, long mask) -{ - struct hmc5843_data *data = iio_priv(indio_dev); - int rate, range; - - switch (mask) { - case IIO_CHAN_INFO_SAMP_FREQ: - rate = hmc5843_get_samp_freq_index(data, val, val2); - if (rate < 0) - return -EINVAL; - - return hmc5843_set_samp_freq(data, rate); - case IIO_CHAN_INFO_SCALE: - range = hmc5843_get_scale_index(data, val, val2); - if (range < 0) - return -EINVAL; - - return hmc5843_set_range_gain(data, range); - default: - return -EINVAL; - } -} - -static int hmc5843_write_raw_get_fmt(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - long mask) -{ - switch (mask) { - case IIO_CHAN_INFO_SAMP_FREQ: - return IIO_VAL_INT_PLUS_MICRO; - case IIO_CHAN_INFO_SCALE: - return IIO_VAL_INT_PLUS_NANO; - default: - return -EINVAL; - } -} - -static irqreturn_t hmc5843_trigger_handler(int irq, void *p) -{ - struct iio_poll_func *pf = p; - struct iio_dev *indio_dev = pf->indio_dev; - struct hmc5843_data *data = iio_priv(indio_dev); - int ret; - - mutex_lock(&data->lock); - ret = hmc5843_wait_measurement(data); - if (ret < 0) { - mutex_unlock(&data->lock); - goto done; - } - - ret = regmap_bulk_read(data->regmap, HMC5843_DATA_OUT_MSB_REGS, - data->buffer, 3 * sizeof(__be16)); - - mutex_unlock(&data->lock); - if (ret < 0) - goto done; - - 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; -} - -#define HMC5843_CHANNEL(axis, idx) \ - { \ - .type = IIO_MAGN, \ - .modified = 1, \ - .channel2 = IIO_MOD_##axis, \ - .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ - .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | \ - BIT(IIO_CHAN_INFO_SAMP_FREQ), \ - .scan_index = idx, \ - .scan_type = { \ - .sign = 's', \ - .realbits = 16, \ - .storagebits = 16, \ - .endianness = IIO_BE, \ - }, \ - } - -static const struct iio_chan_spec hmc5843_channels[] = { - HMC5843_CHANNEL(X, 0), - HMC5843_CHANNEL(Y, 1), - HMC5843_CHANNEL(Z, 2), - IIO_CHAN_SOFT_TIMESTAMP(3), -}; - -/* Beware: Y and Z are exchanged on HMC5883 and 5983 */ -static const struct iio_chan_spec hmc5883_channels[] = { - HMC5843_CHANNEL(X, 0), - HMC5843_CHANNEL(Z, 1), - HMC5843_CHANNEL(Y, 2), - IIO_CHAN_SOFT_TIMESTAMP(3), -}; - -static struct attribute *hmc5843_attributes[] = { - &iio_dev_attr_meas_conf.dev_attr.attr, - &iio_dev_attr_scale_available.dev_attr.attr, - &iio_dev_attr_sampling_frequency_available.dev_attr.attr, - NULL -}; - -static const struct attribute_group hmc5843_group = { - .attrs = hmc5843_attributes, -}; - -static const struct hmc5843_chip_info hmc5843_chip_info_tbl[] = { - [HMC5843_ID] = { - .channels = hmc5843_channels, - .regval_to_samp_freq = hmc5843_regval_to_samp_freq, - .n_regval_to_samp_freq = - ARRAY_SIZE(hmc5843_regval_to_samp_freq), - .regval_to_nanoscale = hmc5843_regval_to_nanoscale, - .n_regval_to_nanoscale = - ARRAY_SIZE(hmc5843_regval_to_nanoscale), - }, - [HMC5883_ID] = { - .channels = hmc5883_channels, - .regval_to_samp_freq = hmc5883_regval_to_samp_freq, - .n_regval_to_samp_freq = - ARRAY_SIZE(hmc5883_regval_to_samp_freq), - .regval_to_nanoscale = hmc5883_regval_to_nanoscale, - .n_regval_to_nanoscale = - ARRAY_SIZE(hmc5883_regval_to_nanoscale), - }, - [HMC5883L_ID] = { - .channels = hmc5883_channels, - .regval_to_samp_freq = hmc5883_regval_to_samp_freq, - .n_regval_to_samp_freq = - ARRAY_SIZE(hmc5883_regval_to_samp_freq), - .regval_to_nanoscale = hmc5883l_regval_to_nanoscale, - .n_regval_to_nanoscale = - ARRAY_SIZE(hmc5883l_regval_to_nanoscale), - }, - [HMC5983_ID] = { - .channels = hmc5883_channels, - .regval_to_samp_freq = hmc5983_regval_to_samp_freq, - .n_regval_to_samp_freq = - ARRAY_SIZE(hmc5983_regval_to_samp_freq), - .regval_to_nanoscale = hmc5883l_regval_to_nanoscale, - .n_regval_to_nanoscale = - ARRAY_SIZE(hmc5883l_regval_to_nanoscale), - } -}; - -static int hmc5843_init(struct hmc5843_data *data) -{ - int ret; - u8 id[3]; - - ret = regmap_bulk_read(data->regmap, HMC5843_ID_REG, - id, ARRAY_SIZE(id)); - if (ret < 0) - return ret; - if (id[0] != 'H' || id[1] != '4' || id[2] != '3') { - dev_err(data->dev, "no HMC5843/5883/5883L/5983 sensor\n"); - return -ENODEV; - } - - ret = hmc5843_set_meas_conf(data, HMC5843_MEAS_CONF_NORMAL); - if (ret < 0) - return ret; - ret = hmc5843_set_samp_freq(data, HMC5843_RATE_DEFAULT); - if (ret < 0) - return ret; - ret = hmc5843_set_range_gain(data, HMC5843_RANGE_GAIN_DEFAULT); - if (ret < 0) - return ret; - return hmc5843_set_mode(data, HMC5843_MODE_CONVERSION_CONTINUOUS); -} - -static const struct iio_info hmc5843_info = { - .attrs = &hmc5843_group, - .read_raw = hmc5843_read_raw, - .write_raw = hmc5843_write_raw, - .write_raw_get_fmt = hmc5843_write_raw_get_fmt, - .driver_module = THIS_MODULE, -}; - -static const unsigned long hmc5843_scan_masks[] = {0x7, 0}; - -int hmc5843_common_suspend(struct device *dev) -{ - return hmc5843_set_mode(iio_priv(dev_get_drvdata(dev)), - HMC5843_MODE_SLEEP); -} -EXPORT_SYMBOL(hmc5843_common_suspend); - -int hmc5843_common_resume(struct device *dev) -{ - return hmc5843_set_mode(iio_priv(dev_get_drvdata(dev)), - HMC5843_MODE_CONVERSION_CONTINUOUS); -} -EXPORT_SYMBOL(hmc5843_common_resume); - -int hmc5843_common_probe(struct device *dev, struct regmap *regmap, - enum hmc5843_ids id, const char *name) -{ - struct hmc5843_data *data; - struct iio_dev *indio_dev; - int ret; - - indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); - if (!indio_dev) - return -ENOMEM; - - dev_set_drvdata(dev, indio_dev); - - /* default settings at probe */ - data = iio_priv(indio_dev); - data->dev = dev; - data->regmap = regmap; - data->variant = &hmc5843_chip_info_tbl[id]; - mutex_init(&data->lock); - - indio_dev->dev.parent = dev; - indio_dev->name = name; - indio_dev->info = &hmc5843_info; - indio_dev->modes = INDIO_DIRECT_MODE; - indio_dev->channels = data->variant->channels; - indio_dev->num_channels = 4; - indio_dev->available_scan_masks = hmc5843_scan_masks; - - ret = hmc5843_init(data); - if (ret < 0) - return ret; - - ret = iio_triggered_buffer_setup(indio_dev, NULL, - hmc5843_trigger_handler, NULL); - if (ret < 0) - goto buffer_setup_err; - - ret = iio_device_register(indio_dev); - if (ret < 0) - goto buffer_cleanup; - - return 0; - -buffer_cleanup: - iio_triggered_buffer_cleanup(indio_dev); -buffer_setup_err: - hmc5843_set_mode(iio_priv(indio_dev), HMC5843_MODE_SLEEP); - return ret; -} -EXPORT_SYMBOL(hmc5843_common_probe); - -int hmc5843_common_remove(struct device *dev) -{ - struct iio_dev *indio_dev = dev_get_drvdata(dev); - - iio_device_unregister(indio_dev); - iio_triggered_buffer_cleanup(indio_dev); - - /* sleep mode to save power */ - hmc5843_set_mode(iio_priv(indio_dev), HMC5843_MODE_SLEEP); - - return 0; -} -EXPORT_SYMBOL(hmc5843_common_remove); - -MODULE_AUTHOR("Shubhrajyoti Datta <shubhrajyoti@ti.com>"); -MODULE_DESCRIPTION("HMC5843/5883/5883L/5983 core driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/staging/iio/magnetometer/hmc5843_i2c.c b/drivers/staging/iio/magnetometer/hmc5843_i2c.c deleted file mode 100644 index 3de7f44..0000000 --- a/drivers/staging/iio/magnetometer/hmc5843_i2c.c +++ /dev/null @@ -1,103 +0,0 @@ -/* - * i2c driver for hmc5843/5843/5883/5883l/5983 - * - * Split from hmc5843.c - * Copyright (C) Josef Gajdusek <atx@atx.name> - * - * 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/module.h> -#include <linux/i2c.h> -#include <linux/regmap.h> -#include <linux/iio/iio.h> -#include <linux/iio/triggered_buffer.h> - -#include "hmc5843.h" - -static const struct regmap_range hmc5843_readable_ranges[] = { - regmap_reg_range(0, HMC5843_ID_END), -}; - -static const struct regmap_access_table hmc5843_readable_table = { - .yes_ranges = hmc5843_readable_ranges, - .n_yes_ranges = ARRAY_SIZE(hmc5843_readable_ranges), -}; - -static const struct regmap_range hmc5843_writable_ranges[] = { - regmap_reg_range(0, HMC5843_MODE_REG), -}; - -static const struct regmap_access_table hmc5843_writable_table = { - .yes_ranges = hmc5843_writable_ranges, - .n_yes_ranges = ARRAY_SIZE(hmc5843_writable_ranges), -}; - -static const struct regmap_range hmc5843_volatile_ranges[] = { - regmap_reg_range(HMC5843_DATA_OUT_MSB_REGS, HMC5843_STATUS_REG), -}; - -static const struct regmap_access_table hmc5843_volatile_table = { - .yes_ranges = hmc5843_volatile_ranges, - .n_yes_ranges = ARRAY_SIZE(hmc5843_volatile_ranges), -}; - -static const struct regmap_config hmc5843_i2c_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - - .rd_table = &hmc5843_readable_table, - .wr_table = &hmc5843_writable_table, - .volatile_table = &hmc5843_volatile_table, - - .cache_type = REGCACHE_RBTREE, -}; - -static int hmc5843_i2c_probe(struct i2c_client *cli, - const struct i2c_device_id *id) -{ - return hmc5843_common_probe(&cli->dev, - devm_regmap_init_i2c(cli, &hmc5843_i2c_regmap_config), - id->driver_data, id->name); -} - -static int hmc5843_i2c_remove(struct i2c_client *client) -{ - return hmc5843_common_remove(&client->dev); -} - -static const struct i2c_device_id hmc5843_id[] = { - { "hmc5843", HMC5843_ID }, - { "hmc5883", HMC5883_ID }, - { "hmc5883l", HMC5883L_ID }, - { "hmc5983", HMC5983_ID }, - { } -}; -MODULE_DEVICE_TABLE(i2c, hmc5843_id); - -static const struct of_device_id hmc5843_of_match[] = { - { .compatible = "honeywell,hmc5843", .data = (void *)HMC5843_ID }, - { .compatible = "honeywell,hmc5883", .data = (void *)HMC5883_ID }, - { .compatible = "honeywell,hmc5883l", .data = (void *)HMC5883L_ID }, - { .compatible = "honeywell,hmc5983", .data = (void *)HMC5983_ID }, - {} -}; -MODULE_DEVICE_TABLE(of, hmc5843_of_match); - -static struct i2c_driver hmc5843_driver = { - .driver = { - .name = "hmc5843", - .pm = HMC5843_PM_OPS, - .of_match_table = hmc5843_of_match, - }, - .id_table = hmc5843_id, - .probe = hmc5843_i2c_probe, - .remove = hmc5843_i2c_remove, -}; -module_i2c_driver(hmc5843_driver); - -MODULE_AUTHOR("Josef Gajdusek <atx@atx.name>"); -MODULE_DESCRIPTION("HMC5843/5883/5883L/5983 i2c driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/staging/iio/magnetometer/hmc5843_spi.c b/drivers/staging/iio/magnetometer/hmc5843_spi.c deleted file mode 100644 index 535f03a..0000000 --- a/drivers/staging/iio/magnetometer/hmc5843_spi.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - * SPI driver for hmc5983 - * - * Copyright (C) Josef Gajdusek <atx@atx.name> - * - * 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/module.h> -#include <linux/spi/spi.h> -#include <linux/iio/iio.h> - -#include "hmc5843.h" - -static const struct regmap_range hmc5843_readable_ranges[] = { - regmap_reg_range(0, HMC5843_ID_END), -}; - -static const struct regmap_access_table hmc5843_readable_table = { - .yes_ranges = hmc5843_readable_ranges, - .n_yes_ranges = ARRAY_SIZE(hmc5843_readable_ranges), -}; - -static const struct regmap_range hmc5843_writable_ranges[] = { - regmap_reg_range(0, HMC5843_MODE_REG), -}; - -static const struct regmap_access_table hmc5843_writable_table = { - .yes_ranges = hmc5843_writable_ranges, - .n_yes_ranges = ARRAY_SIZE(hmc5843_writable_ranges), -}; - -static const struct regmap_range hmc5843_volatile_ranges[] = { - regmap_reg_range(HMC5843_DATA_OUT_MSB_REGS, HMC5843_STATUS_REG), -}; - -static const struct regmap_access_table hmc5843_volatile_table = { - .yes_ranges = hmc5843_volatile_ranges, - .n_yes_ranges = ARRAY_SIZE(hmc5843_volatile_ranges), -}; - -static const struct regmap_config hmc5843_spi_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - - .rd_table = &hmc5843_readable_table, - .wr_table = &hmc5843_writable_table, - .volatile_table = &hmc5843_volatile_table, - - /* Autoincrement address pointer */ - .read_flag_mask = 0xc0, - - .cache_type = REGCACHE_RBTREE, -}; - -static int hmc5843_spi_probe(struct spi_device *spi) -{ - int ret; - const struct spi_device_id *id = spi_get_device_id(spi); - - spi->mode = SPI_MODE_3; - spi->max_speed_hz = 8000000; - spi->bits_per_word = 8; - ret = spi_setup(spi); - if (ret) - return ret; - - return hmc5843_common_probe(&spi->dev, - devm_regmap_init_spi(spi, &hmc5843_spi_regmap_config), - id->driver_data, id->name); -} - -static int hmc5843_spi_remove(struct spi_device *spi) -{ - return hmc5843_common_remove(&spi->dev); -} - -static const struct spi_device_id hmc5843_id[] = { - { "hmc5983", HMC5983_ID }, - { } -}; -MODULE_DEVICE_TABLE(spi, hmc5843_id); - -static struct spi_driver hmc5843_driver = { - .driver = { - .name = "hmc5843", - .pm = HMC5843_PM_OPS, - }, - .id_table = hmc5843_id, - .probe = hmc5843_spi_probe, - .remove = hmc5843_spi_remove, -}; - -module_spi_driver(hmc5843_driver); - -MODULE_AUTHOR("Josef Gajdusek <atx@atx.name>"); -MODULE_DESCRIPTION("HMC5983 SPI driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/staging/iio/trigger/Kconfig b/drivers/staging/iio/trigger/Kconfig index 710a2f3..0b01d24 100644 --- a/drivers/staging/iio/trigger/Kconfig +++ b/drivers/staging/iio/trigger/Kconfig @@ -5,16 +5,6 @@ comment "Triggers - standalone" if IIO_TRIGGER -config IIO_PERIODIC_RTC_TRIGGER - tristate "Periodic RTC triggers" - depends on RTC_CLASS - help - Provides support for using periodic capable real time - clocks as IIO triggers. - - To compile this driver as a module, choose M here: the - module will be called iio-trig-periodic-rtc. - config IIO_BFIN_TMR_TRIGGER tristate "Blackfin TIMER trigger" depends on BLACKFIN diff --git a/drivers/staging/iio/trigger/Makefile b/drivers/staging/iio/trigger/Makefile index 238481b..1300a21 100644 --- a/drivers/staging/iio/trigger/Makefile +++ b/drivers/staging/iio/trigger/Makefile @@ -2,5 +2,4 @@ # Makefile for triggers not associated with iio-devices # -obj-$(CONFIG_IIO_PERIODIC_RTC_TRIGGER) += iio-trig-periodic-rtc.o obj-$(CONFIG_IIO_BFIN_TMR_TRIGGER) += iio-trig-bfin-timer.o diff --git a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c deleted file mode 100644 index 00d1393..0000000 --- a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c +++ /dev/null @@ -1,216 +0,0 @@ -/* The industrial I/O periodic RTC trigger driver - * - * Copyright (c) 2008 Jonathan Cameron - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This is a heavily rewritten version of the periodic timer system in - * earlier version of industrialio. It supplies the same functionality - * but via a trigger rather than a specific periodic timer system. - */ - -#include <linux/platform_device.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/rtc.h> -#include <linux/iio/iio.h> -#include <linux/iio/trigger.h> - -static LIST_HEAD(iio_prtc_trigger_list); -static DEFINE_MUTEX(iio_prtc_trigger_list_lock); - -struct iio_prtc_trigger_info { - struct rtc_device *rtc; - unsigned int frequency; - struct rtc_task task; - bool state; -}; - -static int iio_trig_periodic_rtc_set_state(struct iio_trigger *trig, bool state) -{ - struct iio_prtc_trigger_info *trig_info = iio_trigger_get_drvdata(trig); - int ret; - - if (trig_info->frequency == 0 && state) - return -EINVAL; - dev_dbg(&trig_info->rtc->dev, "trigger frequency is %u\n", - trig_info->frequency); - ret = rtc_irq_set_state(trig_info->rtc, &trig_info->task, state); - if (!ret) - trig_info->state = state; - - return ret; -} - -static ssize_t iio_trig_periodic_read_freq(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct iio_trigger *trig = to_iio_trigger(dev); - struct iio_prtc_trigger_info *trig_info = iio_trigger_get_drvdata(trig); - - return sprintf(buf, "%u\n", trig_info->frequency); -} - -static ssize_t iio_trig_periodic_write_freq(struct device *dev, - struct device_attribute *attr, - const char *buf, - size_t len) -{ - struct iio_trigger *trig = to_iio_trigger(dev); - struct iio_prtc_trigger_info *trig_info = iio_trigger_get_drvdata(trig); - unsigned int val; - int ret; - - ret = kstrtouint(buf, 10, &val); - if (ret) - goto error_ret; - - if (val > 0) { - ret = rtc_irq_set_freq(trig_info->rtc, &trig_info->task, val); - if (ret == 0 && trig_info->state && trig_info->frequency == 0) - ret = rtc_irq_set_state(trig_info->rtc, - &trig_info->task, 1); - } else { - ret = rtc_irq_set_state(trig_info->rtc, &trig_info->task, 0); - } - if (ret) - goto error_ret; - - trig_info->frequency = val; - - return len; - -error_ret: - return ret; -} - -static DEVICE_ATTR(frequency, S_IRUGO | S_IWUSR, - iio_trig_periodic_read_freq, - iio_trig_periodic_write_freq); - -static struct attribute *iio_trig_prtc_attrs[] = { - &dev_attr_frequency.attr, - NULL, -}; - -static const struct attribute_group iio_trig_prtc_attr_group = { - .attrs = iio_trig_prtc_attrs, -}; - -static const struct attribute_group *iio_trig_prtc_attr_groups[] = { - &iio_trig_prtc_attr_group, - NULL -}; - -static void iio_prtc_trigger_poll(void *private_data) -{ - iio_trigger_poll(private_data); -} - -static const struct iio_trigger_ops iio_prtc_trigger_ops = { - .owner = THIS_MODULE, - .set_trigger_state = &iio_trig_periodic_rtc_set_state, -}; - -static int iio_trig_periodic_rtc_probe(struct platform_device *dev) -{ - char **pdata = dev->dev.platform_data; - struct iio_prtc_trigger_info *trig_info; - struct iio_trigger *trig, *trig2; - - int i, ret; - - for (i = 0;; i++) { - if (!pdata[i]) - break; - trig = iio_trigger_alloc("periodic%s", pdata[i]); - if (!trig) { - ret = -ENOMEM; - goto error_free_completed_registrations; - } - list_add(&trig->alloc_list, &iio_prtc_trigger_list); - - trig_info = kzalloc(sizeof(*trig_info), GFP_KERNEL); - if (!trig_info) { - ret = -ENOMEM; - goto error_put_trigger_and_remove_from_list; - } - iio_trigger_set_drvdata(trig, trig_info); - trig->ops = &iio_prtc_trigger_ops; - /* RTC access */ - trig_info->rtc = rtc_class_open(pdata[i]); - if (!trig_info->rtc) { - ret = -EINVAL; - goto error_free_trig_info; - } - trig_info->task.func = iio_prtc_trigger_poll; - trig_info->task.private_data = trig; - ret = rtc_irq_register(trig_info->rtc, &trig_info->task); - if (ret) - goto error_close_rtc; - trig->dev.groups = iio_trig_prtc_attr_groups; - ret = iio_trigger_register(trig); - if (ret) - goto error_unregister_rtc_irq; - } - return 0; -error_unregister_rtc_irq: - rtc_irq_unregister(trig_info->rtc, &trig_info->task); -error_close_rtc: - rtc_class_close(trig_info->rtc); -error_free_trig_info: - kfree(trig_info); -error_put_trigger_and_remove_from_list: - list_del(&trig->alloc_list); - iio_trigger_put(trig); -error_free_completed_registrations: - list_for_each_entry_safe(trig, - trig2, - &iio_prtc_trigger_list, - alloc_list) { - trig_info = iio_trigger_get_drvdata(trig); - rtc_irq_unregister(trig_info->rtc, &trig_info->task); - rtc_class_close(trig_info->rtc); - kfree(trig_info); - iio_trigger_unregister(trig); - } - return ret; -} - -static int iio_trig_periodic_rtc_remove(struct platform_device *dev) -{ - struct iio_trigger *trig, *trig2; - struct iio_prtc_trigger_info *trig_info; - - mutex_lock(&iio_prtc_trigger_list_lock); - list_for_each_entry_safe(trig, - trig2, - &iio_prtc_trigger_list, - alloc_list) { - trig_info = iio_trigger_get_drvdata(trig); - rtc_irq_unregister(trig_info->rtc, &trig_info->task); - rtc_class_close(trig_info->rtc); - kfree(trig_info); - iio_trigger_unregister(trig); - } - mutex_unlock(&iio_prtc_trigger_list_lock); - return 0; -} - -static struct platform_driver iio_trig_periodic_rtc_driver = { - .probe = iio_trig_periodic_rtc_probe, - .remove = iio_trig_periodic_rtc_remove, - .driver = { - .name = "iio_prtc_trigger", - }, -}; - -module_platform_driver(iio_trig_periodic_rtc_driver); - -MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>"); -MODULE_DESCRIPTION("Periodic realtime clock trigger for the iio subsystem"); -MODULE_LICENSE("GPL v2"); |