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First set of new drivers and cleanups for IIO in the 3.15 cycle. 

New drivers:
 * si7005 relative humidity and temperature sensor
 * Lite-on ltr501 ambient light and proximity sensor
 
 Cleanups
 * Clean up some dead comments in max1363
 * Drop some obsolete variables in adjd_s311 and tcs3472 left over from
   the introduction of iio_push_to_buffers_with_timestamp.
 * Drop some unneeded linux/init.h includes
 * Squish a sparse warning in mpl3115 by correctly specifying a be32 variable.
 * A number of cleanups and fixes for sca3000
 * Drop an unneed checks in mxs-lradc, ad7303 and adis16400.
 * Drop a platform_set_drvdata in viperboard after the only use of it was
   removed during a devm conversion.
 * Add a missing device name for ak8975 to comply with the ABI.
 * Put mpu6050 into the IMU menu as it slipped out into the main menu.
 * Fix a typo and some comment formatting in mpu6050.
 * Document at91 ADC clock properties.
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Merge tag 'iio-for-3.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First set of new drivers and cleanups for IIO in the 3.15 cycle.

New drivers:
* si7005 relative humidity and temperature sensor
* Lite-on ltr501 ambient light and proximity sensor

Cleanups
* Clean up some dead comments in max1363
* Drop some obsolete variables in adjd_s311 and tcs3472 left over from
  the introduction of iio_push_to_buffers_with_timestamp.
* Drop some unneeded linux/init.h includes
* Squish a sparse warning in mpl3115 by correctly specifying a be32 variable.
* A number of cleanups and fixes for sca3000
* Drop an unneed checks in mxs-lradc, ad7303 and adis16400.
* Drop a platform_set_drvdata in viperboard after the only use of it was
  removed during a devm conversion.
* Add a missing device name for ak8975 to comply with the ABI.
* Put mpu6050 into the IMU menu as it slipped out into the main menu.
* Fix a typo and some comment formatting in mpu6050.
* Document at91 ADC clock properties.
This commit is contained in:
Greg Kroah-Hartman 2014-02-11 14:12:12 -08:00
parent 81291dd948 7da773e618
commit e5b9c05772
26 changed files with 781 additions and 158 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Documentation/devicetree/bindings/arm/atmel-adc.txt
View File

@ -5,6 +5,9 @@ Required properties:
<chip> can be "at91sam9260", "at91sam9g45" or "at91sam9x5"
- reg: Should contain ADC registers location and length
- interrupts: Should contain the IRQ line for the ADC
- clock-names: tuple listing input clock names.
Required elements: "adc_clk", "adc_op_clk".
- clocks: phandles to input clocks.
- atmel,adc-channels-used: Bitmask of the channels muxed and enable for this
device
- atmel,adc-startup-time: Startup Time of the ADC in microseconds as
@ -44,6 +47,8 @@ adc0: adc@fffb0000 {
compatible = "atmel,at91sam9260-adc";
reg = <0xfffb0000 0x100>;
interrupts = <20 4>;
clocks = <&adc_clk>, <&adc_op_clk>;
clock-names = "adc_clk", "adc_op_clk";
atmel,adc-channel-base = <0x30>;
atmel,adc-channels-used = <0xff>;
atmel,adc-drdy-mask = <0x10000>;

10
drivers/iio/adc/max1363.c
View File

@ -8,17 +8,11 @@
* based on linux/drivers/acron/char/pcf8583.c
* Copyright (C) 2000 Russell King
*
* Driver for max1363 and similar chips.
*
* 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.
*
* max1363.c
*
* Partial support for max1363 and similar chips.
*
* Not currently implemented.
*
* - Control of internal reference.
*/
#include <linux/interrupt.h>

1
drivers/iio/adc/ti_am335x_adc.c
View File

@ -13,7 +13,6 @@
* GNU General Public License for more details.
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/err.h>
#include <linux/module.h>

1
drivers/iio/adc/twl6030-gpadc.c
View File

@ -28,7 +28,6 @@
* 02110-1301 USA
*
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>

2
drivers/iio/adc/viperboard_adc.c
View File

@ -139,8 +139,6 @@ static int vprbrd_adc_probe(struct platform_device *pdev)
return ret;
}
platform_set_drvdata(pdev, indio_dev);
return 0;
}

2
drivers/iio/dac/ad7303.c
View File

@ -92,7 +92,7 @@ static ssize_t ad7303_write_dac_powerdown(struct iio_dev *indio_dev,
ad7303_write(st, chan->channel, st->dac_cache[chan->channel]);
mutex_unlock(&indio_dev->mlock);
return ret ? ret : len;
return len;
}
static int ad7303_get_vref(struct ad7303_state *st,

1
drivers/iio/dac/max517.c
View File

@ -19,7 +19,6 @@
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
#include <linux/i2c.h>

1
drivers/iio/dac/mcp4725.c
View File

@ -15,7 +15,6 @@
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/err.h>
#include <linux/delay.h>

10
drivers/iio/humidity/Kconfig
View File

@ -12,4 +12,14 @@ config DHT11
Other sensors should work as well as long as they speak the
same protocol.
config SI7005
tristate "SI7005 relative humidity and temperature sensor"
depends on I2C
help
Say yes here to build support for the Silabs Si7005 relative
humidity and temperature sensor.
To compile this driver as a module, choose M here: the module
will be called si7005.
endmenu

1
drivers/iio/humidity/Makefile
View File

@ -3,3 +3,4 @@
#
obj-$(CONFIG_DHT11) += dht11.o
obj-$(CONFIG_SI7005) += si7005.o

189
drivers/iio/humidity/si7005.c Normal file
View File

@ -0,0 +1,189 @@
/*
* si7005.c - Support for Silabs Si7005 humidity and temperature sensor
*
* Copyright (c) 2014 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.
*
* (7-bit I2C slave address 0x40)
*
* TODO: heater, fast mode, processed mode (temp. / linearity compensation)
*/
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/pm.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#define SI7005_STATUS 0x00
#define SI7005_DATA 0x01 /* 16-bit, MSB */
#define SI7005_CONFIG 0x03
#define SI7005_ID 0x11
#define SI7005_STATUS_NRDY BIT(0)
#define SI7005_CONFIG_TEMP BIT(4)
#define SI7005_CONFIG_START BIT(0)
#define SI7005_ID_7005 0x50
#define SI7005_ID_7015 0xf0
struct si7005_data {
struct i2c_client *client;
struct mutex lock;
u8 config;
};
static int si7005_read_measurement(struct si7005_data *data, bool temp)
{
int tries = 50;
int ret;
mutex_lock(&data->lock);
ret = i2c_smbus_write_byte_data(data->client, SI7005_CONFIG,
data->config | SI7005_CONFIG_START |
(temp ? SI7005_CONFIG_TEMP : 0));
if (ret < 0)
goto done;
while (tries-- > 0) {
msleep(20);
ret = i2c_smbus_read_byte_data(data->client, SI7005_STATUS);
if (ret < 0)
goto done;
if (!(ret & SI7005_STATUS_NRDY))
break;
}
if (tries < 0) {
ret = -EIO;
goto done;
}
ret = i2c_smbus_read_word_swapped(data->client, SI7005_DATA);
done:
mutex_unlock(&data->lock);
return ret;
}
static int si7005_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int *val,
int *val2, long mask)
{
struct si7005_data *data = iio_priv(indio_dev);
int ret;
switch (mask) {
case IIO_CHAN_INFO_RAW:
ret = si7005_read_measurement(data, chan->type == IIO_TEMP);
if (ret < 0)
return ret;
*val = ret;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
if (chan->type == IIO_TEMP) {
*val = 7;
*val2 = 812500;
} else {
*val = 3;
*val2 = 906250;
}
return IIO_VAL_INT_PLUS_MICRO;
case IIO_CHAN_INFO_OFFSET:
if (chan->type == IIO_TEMP)
*val = -50 * 32 * 4;
else
*val = -24 * 16 * 16;
return IIO_VAL_INT;
default:
break;
}
return -EINVAL;
}
static const struct iio_chan_spec si7005_channels[] = {
{
.type = IIO_HUMIDITYRELATIVE,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OFFSET),
},
{
.type = IIO_TEMP,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OFFSET),
}
};
static const struct iio_info si7005_info = {
.read_raw = si7005_read_raw,
.driver_module = THIS_MODULE,
};
static int si7005_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct iio_dev *indio_dev;
struct si7005_data *data;
int ret;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA))
return -ENODEV;
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);
indio_dev->dev.parent = &client->dev;
indio_dev->name = dev_name(&client->dev);
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &si7005_info;
indio_dev->channels = si7005_channels;
indio_dev->num_channels = ARRAY_SIZE(si7005_channels);
ret = i2c_smbus_read_byte_data(client, SI7005_ID);
if (ret < 0)
return ret;
if (ret != SI7005_ID_7005 && ret != SI7005_ID_7015)
return -ENODEV;
ret = i2c_smbus_read_byte_data(client, SI7005_CONFIG);
if (ret < 0)
return ret;
data->config = ret;
return devm_iio_device_register(&client->dev, indio_dev);
}
static const struct i2c_device_id si7005_id[] = {
{ "si7005", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, si7005_id);
static struct i2c_driver si7005_driver = {
.driver = {
.name = "si7005",
.owner = THIS_MODULE,
},
.probe = si7005_probe,
.id_table = si7005_id,
};
module_i2c_driver(si7005_driver);
MODULE_AUTHOR("Peter Meerwald <pmeerw@pmeerw.net>");
MODULE_DESCRIPTION("Silabs Si7005 humidity and temperature sensor driver");
MODULE_LICENSE("GPL");

4
drivers/iio/imu/Kconfig
View File

@ -25,6 +25,8 @@ config ADIS16480
Say yes here to build support for Analog Devices ADIS16375, ADIS16480,
ADIS16485, ADIS16488 inertial sensors.
source "drivers/iio/imu/inv_mpu6050/Kconfig"
endmenu
config IIO_ADIS_LIB
@ -38,5 +40,3 @@ config IIO_ADIS_LIB_BUFFER
help
A set of buffer helper functions for the Analog Devices ADIS* device
family.
source "drivers/iio/imu/inv_mpu6050/Kconfig"

2
drivers/iio/imu/adis16400_core.c
View File

@ -281,7 +281,7 @@ static ssize_t adis16400_write_frequency(struct device *dev,
st->variant->set_freq(st, val);
mutex_unlock(&indio_dev->mlock);
return ret ? ret : len;
return len;
}
/* Power down the device */

3
drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
View File

@ -12,7 +12,6 @@
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/err.h>
@ -117,7 +116,7 @@ int inv_mpu6050_switch_engine(struct inv_mpu6050_state *st, bool en, u32 mask)
return result;
if (en) {
/* Wait for output stablize */
/* Wait for output stabilize */
msleep(INV_MPU6050_TEMP_UP_TIME);
if (INV_MPU6050_BIT_PWR_GYRO_STBY == mask) {
/* switch internal clock to PLL */

38
drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
View File

@ -126,35 +126,35 @@ struct inv_mpu6050_state {
#define INV_MPU6050_REG_SAMPLE_RATE_DIV 0x19
#define INV_MPU6050_REG_CONFIG 0x1A
#define INV_MPU6050_REG_GYRO_CONFIG 0x1B
#define INV_MPU6050_REG_ACCEL_CONFIG 0x1C
#define INV_MPU6050_REG_ACCEL_CONFIG 0x1C
#define INV_MPU6050_REG_FIFO_EN 0x23
#define INV_MPU6050_BIT_ACCEL_OUT 0x08
#define INV_MPU6050_BITS_GYRO_OUT 0x70
#define INV_MPU6050_BIT_ACCEL_OUT 0x08
#define INV_MPU6050_BITS_GYRO_OUT 0x70
#define INV_MPU6050_REG_INT_ENABLE 0x38
#define INV_MPU6050_BIT_DATA_RDY_EN 0x01
#define INV_MPU6050_BIT_DMP_INT_EN 0x02
#define INV_MPU6050_BIT_DATA_RDY_EN 0x01
#define INV_MPU6050_BIT_DMP_INT_EN 0x02
#define INV_MPU6050_REG_RAW_ACCEL 0x3B
#define INV_MPU6050_REG_TEMPERATURE 0x41
#define INV_MPU6050_REG_RAW_GYRO 0x43
#define INV_MPU6050_REG_USER_CTRL 0x6A
#define INV_MPU6050_BIT_FIFO_RST 0x04
#define INV_MPU6050_BIT_DMP_RST 0x08
#define INV_MPU6050_BIT_I2C_MST_EN 0x20
#define INV_MPU6050_BIT_FIFO_EN 0x40
#define INV_MPU6050_BIT_DMP_EN 0x80
#define INV_MPU6050_BIT_FIFO_RST 0x04
#define INV_MPU6050_BIT_DMP_RST 0x08
#define INV_MPU6050_BIT_I2C_MST_EN 0x20
#define INV_MPU6050_BIT_FIFO_EN 0x40
#define INV_MPU6050_BIT_DMP_EN 0x80
#define INV_MPU6050_REG_PWR_MGMT_1 0x6B
#define INV_MPU6050_BIT_H_RESET 0x80
#define INV_MPU6050_BIT_SLEEP 0x40
#define INV_MPU6050_BIT_CLK_MASK 0x7
#define INV_MPU6050_BIT_H_RESET 0x80
#define INV_MPU6050_BIT_SLEEP 0x40
#define INV_MPU6050_BIT_CLK_MASK 0x7
#define INV_MPU6050_REG_PWR_MGMT_2 0x6C
#define INV_MPU6050_BIT_PWR_ACCL_STBY 0x38
#define INV_MPU6050_BIT_PWR_GYRO_STBY 0x07
#define INV_MPU6050_BIT_PWR_ACCL_STBY 0x38
#define INV_MPU6050_BIT_PWR_GYRO_STBY 0x07
#define INV_MPU6050_REG_FIFO_COUNT_H 0x72
#define INV_MPU6050_REG_FIFO_R_W 0x74
@ -180,10 +180,10 @@ struct inv_mpu6050_state {
/* init parameters */
#define INV_MPU6050_INIT_FIFO_RATE 50
#define INV_MPU6050_TIME_STAMP_TOR 5
#define INV_MPU6050_MAX_FIFO_RATE 1000
#define INV_MPU6050_MIN_FIFO_RATE 4
#define INV_MPU6050_ONE_K_HZ 1000
#define INV_MPU6050_TIME_STAMP_TOR 5
#define INV_MPU6050_MAX_FIFO_RATE 1000
#define INV_MPU6050_MIN_FIFO_RATE 4
#define INV_MPU6050_ONE_K_HZ 1000
/* scan element definition */
enum inv_mpu6050_scan {

1
drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
View File

@ -12,7 +12,6 @@
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/err.h>

12
drivers/iio/light/Kconfig
View File

@ -90,6 +90,18 @@ config SENSORS_LM3533
changes. The ALS-control output values can be set per zone for the
three current output channels.
config LTR501
tristate "LTR-501ALS-01 light sensor"
depends on I2C
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
help
If you say yes here you get support for the Lite-On LTR-501ALS-01
ambient light and proximity sensor.
This driver can also be built as a module. If so, the module
will be called ltr501.
config TCS3472
tristate "TAOS TCS3472 color light-to-digital converter"
depends on I2C

1
drivers/iio/light/Makefile
View File

@ -10,6 +10,7 @@ obj-$(CONFIG_CM36651) += cm36651.o
obj-$(CONFIG_GP2AP020A00F) += gp2ap020a00f.o
obj-$(CONFIG_HID_SENSOR_ALS) += hid-sensor-als.o
obj-$(CONFIG_SENSORS_LM3533) += lm3533-als.o
obj-$(CONFIG_LTR501) += ltr501.o
obj-$(CONFIG_SENSORS_TSL2563) += tsl2563.o
obj-$(CONFIG_TCS3472) += tcs3472.o
obj-$(CONFIG_TSL4531) += tsl4531.o

3
drivers/iio/light/adjd_s311.c
View File

@ -14,7 +14,6 @@
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/slab.h>
@ -120,7 +119,6 @@ static irqreturn_t adjd_s311_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct adjd_s311_data *data = iio_priv(indio_dev);
s64 time_ns = iio_get_time_ns();
int len = 0;
int i, j = 0;
int ret = adjd_s311_req_data(indio_dev);
@ -135,7 +133,6 @@ static irqreturn_t adjd_s311_trigger_handler(int irq, void *p)
goto done;
data->buffer[j++] = ret & ADJD_S311_DATA_MASK;
len += 2;
}
iio_push_to_buffers_with_timestamp(indio_dev, data->buffer, time_ns);

445
drivers/iio/light/ltr501.c Normal file
View File

@ -0,0 +1,445 @@
/*
* ltr501.c - Support for Lite-On LTR501 ambient light and proximity sensor
*
* Copyright 2014 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.
*
* 7-bit I2C slave address 0x23
*
* TODO: interrupt, threshold, measurement rate, IR LED characteristics
*/
#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>
#include <linux/iio/trigger_consumer.h>
#include <linux/iio/buffer.h>
#include <linux/iio/triggered_buffer.h>
#define LTR501_DRV_NAME "ltr501"
#define LTR501_ALS_CONTR 0x80 /* ALS operation mode, SW reset */
#define LTR501_PS_CONTR 0x81 /* PS operation mode */
#define LTR501_PART_ID 0x86
#define LTR501_MANUFAC_ID 0x87
#define LTR501_ALS_DATA1 0x88 /* 16-bit, little endian */
#define LTR501_ALS_DATA0 0x8a /* 16-bit, little endian */
#define LTR501_ALS_PS_STATUS 0x8c
#define LTR501_PS_DATA 0x8d /* 16-bit, little endian */
#define LTR501_ALS_CONTR_SW_RESET BIT(2)
#define LTR501_CONTR_PS_GAIN_MASK (BIT(3) | BIT(2))
#define LTR501_CONTR_PS_GAIN_SHIFT 2
#define LTR501_CONTR_ALS_GAIN_MASK BIT(3)
#define LTR501_CONTR_ACTIVE BIT(1)
#define LTR501_STATUS_ALS_RDY BIT(2)
#define LTR501_STATUS_PS_RDY BIT(0)
#define LTR501_PS_DATA_MASK 0x7ff
struct ltr501_data {
struct i2c_client *client;
struct mutex lock_als, lock_ps;
u8 als_contr, ps_contr;
};
static int ltr501_drdy(struct ltr501_data *data, u8 drdy_mask)
{
int tries = 100;
int ret;
while (tries--) {
ret = i2c_smbus_read_byte_data(data->client,
LTR501_ALS_PS_STATUS);
if (ret < 0)
return ret;
if ((ret & drdy_mask) == drdy_mask)
return 0;
msleep(25);
}
dev_err(&data->client->dev, "ltr501_drdy() failed, data not ready\n");
return -EIO;
}
static int ltr501_read_als(struct ltr501_data *data, __le16 buf[2])
{
int ret = ltr501_drdy(data, LTR501_STATUS_ALS_RDY);
if (ret < 0)
return ret;
/* always read both ALS channels in given order */
return i2c_smbus_read_i2c_block_data(data->client,
LTR501_ALS_DATA1, 2 * sizeof(__le16), (u8 *) buf);
}
static int ltr501_read_ps(struct ltr501_data *data)
{
int ret = ltr501_drdy(data, LTR501_STATUS_PS_RDY);
if (ret < 0)
return ret;
return i2c_smbus_read_word_data(data->client, LTR501_PS_DATA);
}
#define LTR501_INTENSITY_CHANNEL(_idx, _addr, _mod, _shared) { \
.type = IIO_INTENSITY, \
.modified = 1, \
.address = (_addr), \
.channel2 = (_mod), \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
.info_mask_shared_by_type = (_shared), \
.scan_index = (_idx), \
.scan_type = { \
.sign = 'u', \
.realbits = 16, \
.storagebits = 16, \
.endianness = IIO_CPU, \
} \
}
static const struct iio_chan_spec ltr501_channels[] = {
LTR501_INTENSITY_CHANNEL(0, LTR501_ALS_DATA0, IIO_MOD_LIGHT_BOTH, 0),
LTR501_INTENSITY_CHANNEL(1, LTR501_ALS_DATA1, IIO_MOD_LIGHT_IR,
BIT(IIO_CHAN_INFO_SCALE)),
{
.type = IIO_PROXIMITY,
.address = LTR501_PS_DATA,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
BIT(IIO_CHAN_INFO_SCALE),
.scan_index = 2,
.scan_type = {
.sign = 'u',
.realbits = 11,
.storagebits = 16,
.endianness = IIO_CPU,
},
},
IIO_CHAN_SOFT_TIMESTAMP(3),
};
static const int ltr501_ps_gain[4][2] = {
{1, 0}, {0, 250000}, {0, 125000}, {0, 62500}
};
static int ltr501_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int *val, int *val2, long mask)
{
struct ltr501_data *data = iio_priv(indio_dev);
__le16 buf[2];
int ret, i;
switch (mask) {
case IIO_CHAN_INFO_RAW:
if (iio_buffer_enabled(indio_dev))
return -EBUSY;
switch (chan->type) {
case IIO_INTENSITY:
mutex_lock(&data->lock_als);
ret = ltr501_read_als(data, buf);
mutex_unlock(&data->lock_als);
if (ret < 0)
return ret;
*val = le16_to_cpu(chan->address == LTR501_ALS_DATA1 ?
buf[0] : buf[1]);
return IIO_VAL_INT;
case IIO_PROXIMITY:
mutex_lock(&data->lock_ps);
ret = ltr501_read_ps(data);
mutex_unlock(&data->lock_ps);
if (ret < 0)
return ret;
*val = ret & LTR501_PS_DATA_MASK;
return IIO_VAL_INT;
default:
return -EINVAL;
}
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_INTENSITY:
if (data->als_contr & LTR501_CONTR_ALS_GAIN_MASK) {
*val = 0;
*val2 = 5000;
return IIO_VAL_INT_PLUS_MICRO;
} else {
*val = 1;
*val2 = 0;
return IIO_VAL_INT;
}
case IIO_PROXIMITY:
i = (data->ps_contr & LTR501_CONTR_PS_GAIN_MASK) >>
LTR501_CONTR_PS_GAIN_SHIFT;
*val = ltr501_ps_gain[i][0];
*val2 = ltr501_ps_gain[i][1];
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
}
return -EINVAL;
}
static int ltr501_get_ps_gain_index(int val, int val2)
{
int i;
for (i = 0; i < ARRAY_SIZE(ltr501_ps_gain); i++)
if (val == ltr501_ps_gain[i][0] && val2 == ltr501_ps_gain[i][1])
return i;
return -1;
}
static int ltr501_write_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int val, int val2, long mask)
{
struct ltr501_data *data = iio_priv(indio_dev);
int i;
if (iio_buffer_enabled(indio_dev))
return -EBUSY;
switch (mask) {
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_INTENSITY:
if (val == 0 && val2 == 5000)
data->als_contr |= LTR501_CONTR_ALS_GAIN_MASK;
else if (val == 1 && val2 == 0)
data->als_contr &= ~LTR501_CONTR_ALS_GAIN_MASK;
else
return -EINVAL;
return i2c_smbus_write_byte_data(data->client,
LTR501_ALS_CONTR, data->als_contr);
case IIO_PROXIMITY:
i = ltr501_get_ps_gain_index(val, val2);
if (i < 0)
return -EINVAL;
data->ps_contr &= ~LTR501_CONTR_PS_GAIN_MASK;
data->ps_contr |= i << LTR501_CONTR_PS_GAIN_SHIFT;
return i2c_smbus_write_byte_data(data->client,
LTR501_PS_CONTR, data->ps_contr);
default:
return -EINVAL;
}
}
return -EINVAL;
}
static IIO_CONST_ATTR(in_proximity_scale_available, "1 0.25 0.125 0.0625");
static IIO_CONST_ATTR(in_intensity_scale_available, "1 0.005");
static struct attribute *ltr501_attributes[] = {
&iio_const_attr_in_proximity_scale_available.dev_attr.attr,
&iio_const_attr_in_intensity_scale_available.dev_attr.attr,
NULL
};
static const struct attribute_group ltr501_attribute_group = {
.attrs = ltr501_attributes,
};
static const struct iio_info ltr501_info = {
.read_raw = ltr501_read_raw,
.write_raw = ltr501_write_raw,
.attrs = &ltr501_attribute_group,
.driver_module = THIS_MODULE,
};
static int ltr501_write_contr(struct i2c_client *client, u8 als_val, u8 ps_val)
{
int ret = i2c_smbus_write_byte_data(client, LTR501_ALS_CONTR, als_val);
if (ret < 0)
return ret;
return i2c_smbus_write_byte_data(client, LTR501_PS_CONTR, ps_val);
}
static irqreturn_t ltr501_trigger_handler(int irq, void *p)
{
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct ltr501_data *data = iio_priv(indio_dev);
u16 buf[8];
__le16 als_buf[2];
u8 mask = 0;
int j = 0;
int ret;
memset(buf, 0, sizeof(buf));
/* figure out which data needs to be ready */
if (test_bit(0, indio_dev->active_scan_mask) ||
test_bit(1, indio_dev->active_scan_mask))
mask |= LTR501_STATUS_ALS_RDY;
if (test_bit(2, indio_dev->active_scan_mask))
mask |= LTR501_STATUS_PS_RDY;
ret = ltr501_drdy(data, mask);
if (ret < 0)
goto done;
if (mask & LTR501_STATUS_ALS_RDY) {
ret = i2c_smbus_read_i2c_block_data(data->client,
LTR501_ALS_DATA1, sizeof(als_buf), (u8 *) als_buf);
if (ret < 0)
return ret;
if (test_bit(0, indio_dev->active_scan_mask))
buf[j++] = le16_to_cpu(als_buf[1]);
if (test_bit(1, indio_dev->active_scan_mask))
buf[j++] = le16_to_cpu(als_buf[0]);
}
if (mask & LTR501_STATUS_PS_RDY) {
ret = i2c_smbus_read_word_data(data->client, LTR501_PS_DATA);
if (ret < 0)
goto done;
buf[j++] = ret & LTR501_PS_DATA_MASK;
}
iio_push_to_buffers_with_timestamp(indio_dev, buf,
iio_get_time_ns());
done:
iio_trigger_notify_done(indio_dev->trig);
return IRQ_HANDLED;
}
static int ltr501_init(struct ltr501_data *data)
{
int ret;
ret = i2c_smbus_read_byte_data(data->client, LTR501_ALS_CONTR);
if (ret < 0)
return ret;
data->als_contr = ret | LTR501_CONTR_ACTIVE;
ret = i2c_smbus_read_byte_data(data->client, LTR501_PS_CONTR);
if (ret < 0)
return ret;
data->ps_contr = ret | LTR501_CONTR_ACTIVE;
return ltr501_write_contr(data->client, data->als_contr,
data->ps_contr);
}
static int ltr501_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct ltr501_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_als);
mutex_init(&data->lock_ps);
ret = i2c_smbus_read_byte_data(data->client, LTR501_PART_ID);
if (ret < 0)
return ret;
if ((ret >> 4) != 0x8)
return -ENODEV;
indio_dev->dev.parent = &client->dev;
indio_dev->info = &ltr501_info;
indio_dev->channels = ltr501_channels;
indio_dev->num_channels = ARRAY_SIZE(ltr501_channels);
indio_dev->name = LTR501_DRV_NAME;
indio_dev->modes = INDIO_DIRECT_MODE;
ret = ltr501_init(data);
if (ret < 0)
return ret;
ret = iio_triggered_buffer_setup(indio_dev, NULL,
ltr501_trigger_handler, NULL);
if (ret)
return ret;
ret = iio_device_register(indio_dev);
if (ret)
goto error_unreg_buffer;
return 0;
error_unreg_buffer:
iio_triggered_buffer_cleanup(indio_dev);
return ret;
}
static int ltr501_powerdown(struct ltr501_data *data)
{
return ltr501_write_contr(data->client,
data->als_contr & ~LTR501_CONTR_ACTIVE,
data->ps_contr & ~LTR501_CONTR_ACTIVE);
}
static int ltr501_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);
ltr501_powerdown(iio_priv(indio_dev));
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int ltr501_suspend(struct device *dev)
{
struct ltr501_data *data = iio_priv(i2c_get_clientdata(
to_i2c_client(dev)));
return ltr501_powerdown(data);
}
static int ltr501_resume(struct device *dev)
{
struct ltr501_data *data = iio_priv(i2c_get_clientdata(
to_i2c_client(dev)));
return ltr501_write_contr(data->client, data->als_contr,
data->ps_contr);
}
#endif
static SIMPLE_DEV_PM_OPS(ltr501_pm_ops, ltr501_suspend, ltr501_resume);
static const struct i2c_device_id ltr501_id[] = {
{ "ltr501", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ltr501_id);
static struct i2c_driver ltr501_driver = {
.driver = {
.name = LTR501_DRV_NAME,
.pm = &ltr501_pm_ops,
.owner = THIS_MODULE,
},
.probe = ltr501_probe,
.remove = ltr501_remove,
.id_table = ltr501_id,
};
module_i2c_driver(ltr501_driver);
MODULE_AUTHOR("Peter Meerwald <pmeerw@pmeerw.net>");
MODULE_DESCRIPTION("Lite-On LTR501 ambient light and proximity sensor driver");
MODULE_LICENSE("GPL");

2
drivers/iio/light/tcs3472.c
View File

@ -179,7 +179,6 @@ 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);
@ -194,7 +193,6 @@ static irqreturn_t tcs3472_trigger_handler(int irq, void *p)
goto done;
data->buffer[j++] = ret;
len += 2;
}
iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,

1
drivers/iio/magnetometer/ak8975.c
View File

@ -513,6 +513,7 @@ static int ak8975_probe(struct i2c_client *client,
indio_dev->channels = ak8975_channels;
indio_dev->num_channels = ARRAY_SIZE(ak8975_channels);
indio_dev->info = &ak8975_info;
indio_dev->name = id->name;
indio_dev->modes = INDIO_DIRECT_MODE;
err = iio_device_register(indio_dev);

2
drivers/iio/pressure/mpl3115.c
View File

@ -77,7 +77,7 @@ static int mpl3115_read_raw(struct iio_dev *indio_dev,
int *val, int *val2, long mask)
{
struct mpl3115_data *data = iio_priv(indio_dev);
s32 tmp = 0;
__be32 tmp = 0;
int ret;
switch (mask) {

26
drivers/staging/iio/accel/sca3000.h
View File

@ -65,7 +65,8 @@
#define SCA3000_RING_BUF_ENABLE 0x80
#define SCA3000_RING_BUF_8BIT 0x40
/* Free fall detection triggers an interrupt if the acceleration
/*
* Free fall detection triggers an interrupt if the acceleration
* is below a threshold for equivalent of 25cm drop
*/
#define SCA3000_FREE_FALL_DETECT 0x10
@ -73,8 +74,9 @@
#define SCA3000_MEAS_MODE_OP_1 0x01
#define SCA3000_MEAS_MODE_OP_2 0x02
/* In motion detection mode the accelerations are band pass filtered
* (aprox 1 - 25Hz) and then a programmable threshold used to trigger
/*
* In motion detection mode the accelerations are band pass filtered
* (approx 1 - 25Hz) and then a programmable threshold used to trigger
* and interrupt.
*/
#define SCA3000_MEAS_MODE_MOT_DET 0x03
@ -99,8 +101,10 @@
#define SCA3000_REG_CTRL_SEL_MD_Y_TH 0x03
#define SCA3000_REG_CTRL_SEL_MD_X_TH 0x04
#define SCA3000_REG_CTRL_SEL_MD_Z_TH 0x05
/* BE VERY CAREFUL WITH THIS, IF 3 BITS ARE NOT SET the device
will not function */
/*
* BE VERY CAREFUL WITH THIS, IF 3 BITS ARE NOT SET the device
* will not function
*/
#define SCA3000_REG_CTRL_SEL_OUT_CTRL 0x0B
#define SCA3000_OUT_CTRL_PROT_MASK 0xE0
#define SCA3000_OUT_CTRL_BUF_X_EN 0x10
@ -109,8 +113,9 @@
#define SCA3000_OUT_CTRL_BUF_DIV_4 0x02
#define SCA3000_OUT_CTRL_BUF_DIV_2 0x01
/* Control which motion detector interrupts are on.
* For now only OR combinations are supported.x
/*
* Control which motion detector interrupts are on.
* For now only OR combinations are supported.
*/
#define SCA3000_MD_CTRL_PROT_MASK 0xC0
#define SCA3000_MD_CTRL_OR_Y 0x01
@ -121,7 +126,8 @@
#define SCA3000_MD_CTRL_AND_X 0x10
#define SAC3000_MD_CTRL_AND_Z 0x20
/* Some control registers of complex access methods requiring this register to
/*
* Some control registers of complex access methods requiring this register to
* be used to remove a lock.
*/
#define SCA3000_REG_ADDR_UNLOCK 0x1e
@ -139,7 +145,8 @@
/* Values of multiplexed registers (write to ctrl_data after select) */
#define SCA3000_REG_ADDR_CTRL_DATA 0x22
/* Measurement modes available on some sca3000 series chips. Code assumes others
/*
* Measurement modes available on some sca3000 series chips. Code assumes others
* may become available in the future.
*
* Bypass - Bypass the low-pass filter in the signal channel so as to increase
@ -160,7 +167,6 @@
* struct sca3000_state - device instance state information
* @us: the associated spi device
* @info: chip variant information
* @indio_dev: device information used by the IIO core
* @interrupt_handler_ws: event interrupt handler for all events
* @last_timestamp: the timestamp of the last event
* @mo_det_use_count: reference counter for the motion detection unit

172
drivers/staging/iio/accel/sca3000_core.c
View File

@ -32,7 +32,8 @@ enum sca3000_variant {
e05,
};
/* Note where option modes are not defined, the chip simply does not
/*
* Note where option modes are not defined, the chip simply does not
* support any.
* Other chips in the sca3000 series use i2c and are not included here.
*
@ -191,7 +192,6 @@ error_ret:
return ret;
}
/* Crucial that lock is called before calling this */
/**
* sca3000_read_ctrl_reg() read from lock protected control register.
*
@ -250,9 +250,8 @@ error_ret:
}
#endif /* SCA3000_DEBUG */
/**
* sca3000_show_reg() - sysfs interface to read the chip revision number
* sca3000_show_rev() - sysfs interface to read the chip revision number
**/
static ssize_t sca3000_show_rev(struct device *dev,
struct device_attribute *attr,
@ -312,7 +311,7 @@ sca3000_show_available_measurement_modes(struct device *dev,
}
/**
* sca3000_show_measurmenet_mode() sysfs read of current mode
* sca3000_show_measurement_mode() sysfs read of current mode
**/
static ssize_t
sca3000_show_measurement_mode(struct device *dev,
@ -403,7 +402,8 @@ error_ret:
}
/* Not even vaguely standard attributes so defined here rather than
/*
* Not even vaguely standard attributes so defined here rather than
* in the relevant IIO core headers
*/
static IIO_DEVICE_ATTR(measurement_mode_available, S_IRUGO,
@ -450,6 +450,18 @@ static const struct iio_chan_spec sca3000_channels[] = {
SCA3000_CHAN(2, IIO_MOD_Z),
};
static const struct iio_chan_spec sca3000_channels_with_temp[] = {
SCA3000_CHAN(0, IIO_MOD_X),
SCA3000_CHAN(1, IIO_MOD_Y),
SCA3000_CHAN(2, IIO_MOD_Z),
{
.type = IIO_TEMP,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |
BIT(IIO_CHAN_INFO_OFFSET),
},
};
static u8 sca3000_addresses[3][3] = {
[0] = {SCA3000_REG_ADDR_X_MSB, SCA3000_REG_CTRL_SEL_MD_X_TH,
SCA3000_MD_CTRL_OR_X},
@ -472,19 +484,30 @@ static int sca3000_read_raw(struct iio_dev *indio_dev,
switch (mask) {
case IIO_CHAN_INFO_RAW:
mutex_lock(&st->lock);
if (st->mo_det_use_count) {
mutex_unlock(&st->lock);
return -EBUSY;
if (chan->type == IIO_ACCEL) {
if (st->mo_det_use_count) {
mutex_unlock(&st->lock);
return -EBUSY;
}
address = sca3000_addresses[chan->address][0];
ret = sca3000_read_data_short(st, address, 2);
if (ret < 0) {
mutex_unlock(&st->lock);
return ret;
}
*val = (be16_to_cpup((__be16 *)st->rx) >> 3) & 0x1FFF;
*val = ((*val) << (sizeof(*val)*8 - 13)) >>
(sizeof(*val)*8 - 13);
} else {
/* get the temperature when available */
ret = sca3000_read_data_short(st,
SCA3000_REG_ADDR_TEMP_MSB, 2);
if (ret < 0) {
mutex_unlock(&st->lock);
return ret;
}
*val = ((st->rx[0] & 0x3F) << 3) | ((st->rx[1] & 0xE0) >> 5);
}
address = sca3000_addresses[chan->address][0];
ret = sca3000_read_data_short(st, address, 2);
if (ret < 0) {
mutex_unlock(&st->lock);
return ret;
}
*val = (be16_to_cpup((__be16 *)st->rx) >> 3) & 0x1FFF;
*val = ((*val) << (sizeof(*val)*8 - 13)) >>
(sizeof(*val)*8 - 13);
mutex_unlock(&st->lock);
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
@ -494,6 +517,10 @@ static int sca3000_read_raw(struct iio_dev *indio_dev,
else /* temperature */
*val2 = 555556;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_CHAN_INFO_OFFSET:
*val = -214;
*val2 = 600000;
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
@ -547,7 +574,7 @@ error_ret:
return ret;
}
/**
* __sca3000_get_base_frequency() obtain mode specific base frequency
* __sca3000_get_base_freq() obtain mode specific base frequency
*
* lock must be held
**/
@ -663,7 +690,8 @@ error_free_lock:
return ret ? ret : len;
}
/* Should only really be registered if ring buffer support is compiled in.
/*
* Should only really be registered if ring buffer support is compiled in.
* Does no harm however and doing it right would add a fair bit of complexity
*/
static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(sca3000_read_av_freq);
@ -672,37 +700,6 @@ static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
sca3000_read_frequency,
sca3000_set_frequency);
/**
* sca3000_read_temp() sysfs interface to get the temperature when available
*
* The alignment of data in here is downright odd. See data sheet.
* Converting this into a meaningful value is left to inline functions in
* userspace part of header.
**/
static ssize_t sca3000_read_temp(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct sca3000_state *st = iio_priv(indio_dev);
int ret;
int val;
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_TEMP_MSB, 2);
if (ret < 0)
goto error_ret;
val = ((st->rx[0] & 0x3F) << 3) | ((st->rx[1] & 0xE0) >> 5);
return sprintf(buf, "%d\n", val);
error_ret:
return ret;
}
static IIO_DEV_ATTR_TEMP_RAW(sca3000_read_temp);
static IIO_CONST_ATTR_TEMP_SCALE("0.555556");
static IIO_CONST_ATTR_TEMP_OFFSET("-214.6");
/**
* sca3000_read_thresh() - query of a threshold
**/
@ -782,33 +779,16 @@ static struct attribute *sca3000_attributes[] = {
NULL,
};
static struct attribute *sca3000_attributes_with_temp[] = {
&iio_dev_attr_revision.dev_attr.attr,
&iio_dev_attr_measurement_mode_available.dev_attr.attr,
&iio_dev_attr_measurement_mode.dev_attr.attr,
&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
&iio_dev_attr_sampling_frequency.dev_attr.attr,
/* Only present if temp sensor is */
&iio_dev_attr_in_temp_raw.dev_attr.attr,
&iio_const_attr_in_temp_offset.dev_attr.attr,
&iio_const_attr_in_temp_scale.dev_attr.attr,
NULL,
};
static const struct attribute_group sca3000_attribute_group = {
.attrs = sca3000_attributes,
};
static const struct attribute_group sca3000_attribute_group_with_temp = {
.attrs = sca3000_attributes_with_temp,
};
/* RING RELATED interrupt handler */
/* depending on event, push to the ring buffer event chrdev or the event one */
/**
* sca3000_event_handler() - handling ring and non ring events
*
* Ring related interrupt handler. Depending on event, push to
* the ring buffer event chrdev or the event one.
*
* This function is complicated by the fact that the devices can signify ring
* and non ring events via the same interrupt line and they can only
* be distinguished via a read of the relevant status register.
@ -820,7 +800,8 @@ static irqreturn_t sca3000_event_handler(int irq, void *private)
int ret, val;
s64 last_timestamp = iio_get_time_ns();
/* Could lead if badly timed to an extra read of status reg,
/*
* Could lead if badly timed to an extra read of status reg,
* but ensures no interrupt is missed.
*/
mutex_lock(&st->lock);
@ -935,7 +916,6 @@ static ssize_t sca3000_query_free_fall_mode(struct device *dev,
* the device falls more than 25cm. This has not been tested due
* to fragile wiring.
**/
static ssize_t sca3000_set_free_fall_mode(struct device *dev,
struct device_attribute *attr,
const char *buf,
@ -957,7 +937,7 @@ static ssize_t sca3000_set_free_fall_mode(struct device *dev,
if (ret)
goto error_ret;
/*if off and should be on*/
/* if off and should be on */
if (val && !(st->rx[0] & protect_mask))
ret = sca3000_write_reg(st, SCA3000_REG_ADDR_MODE,
(st->rx[0] | SCA3000_FREE_FALL_DETECT));
@ -972,7 +952,7 @@ error_ret:
}
/**
* sca3000_set_mo_det() simple on off control for motion detector
* sca3000_write_event_config() simple on off control for motion detector
*
* This is a per axis control, but enabling any will result in the
* motion detector unit being enabled.
@ -992,13 +972,15 @@ static int sca3000_write_event_config(struct iio_dev *indio_dev,
int num = chan->channel2;
mutex_lock(&st->lock);
/* First read the motion detector config to find out if
* this axis is on*/
/*
* First read the motion detector config to find out if
* this axis is on
*/
ret = sca3000_read_ctrl_reg(st, SCA3000_REG_CTRL_SEL_MD_CTRL);
if (ret < 0)
goto exit_point;
ctrlval = ret;
/* Off and should be on */
/* if off and should be on */
if (state && !(ctrlval & sca3000_addresses[num][2])) {
ret = sca3000_write_ctrl_reg(st,
SCA3000_REG_CTRL_SEL_MD_CTRL,
@ -1021,7 +1003,7 @@ static int sca3000_write_event_config(struct iio_dev *indio_dev,
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
if (ret)
goto exit_point;
/*if off and should be on*/
/* if off and should be on */
if ((st->mo_det_use_count)
&& ((st->rx[0] & protect_mask) != SCA3000_MEAS_MODE_MOT_DET))
ret = sca3000_write_reg(st, SCA3000_REG_ADDR_MODE,
@ -1067,7 +1049,7 @@ static struct attribute_group sca3000_event_attribute_group = {
* Devices use flash memory to store many of the register values
* and hence can come up in somewhat unpredictable states.
* Hence reset everything on driver load.
**/
**/
static int sca3000_clean_setup(struct sca3000_state *st)
{
int ret;
@ -1107,9 +1089,11 @@ static int sca3000_clean_setup(struct sca3000_state *st)
| SCA3000_INT_MASK_ACTIVE_LOW);
if (ret)
goto error_ret;
/* Select normal measurement mode, free fall off, ring off */
/* Ring in 12 bit mode - it is fine to overwrite reserved bits 3,5
* as that occurs in one of the example on the datasheet */
/*
* Select normal measurement mode, free fall off, ring off
* Ring in 12 bit mode - it is fine to overwrite reserved bits 3,5
* as that occurs in one of the example on the datasheet
*/
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
if (ret)
goto error_ret;
@ -1133,16 +1117,6 @@ static const struct iio_info sca3000_info = {
.driver_module = THIS_MODULE,
};
static const struct iio_info sca3000_info_with_temp = {
.attrs = &sca3000_attribute_group_with_temp,
.read_raw = &sca3000_read_raw,
.read_event_value = &sca3000_read_thresh,
.write_event_value = &sca3000_write_thresh,
.read_event_config = &sca3000_read_event_config,
.write_event_config = &sca3000_write_event_config,
.driver_module = THIS_MODULE,
};
static int sca3000_probe(struct spi_device *spi)
{
int ret;
@ -1162,10 +1136,12 @@ static int sca3000_probe(struct spi_device *spi)
indio_dev->dev.parent = &spi->dev;
indio_dev->name = spi_get_device_id(spi)->name;
if (st->info->temp_output)
indio_dev->info = &sca3000_info_with_temp;
else {
indio_dev->info = &sca3000_info;
indio_dev->info = &sca3000_info;
if (st->info->temp_output) {
indio_dev->channels = sca3000_channels_with_temp;
indio_dev->num_channels =
ARRAY_SIZE(sca3000_channels_with_temp);
} else {
indio_dev->channels = sca3000_channels;
indio_dev->num_channels = ARRAY_SIZE(sca3000_channels);
}
@ -1236,7 +1212,7 @@ static int sca3000_remove(struct spi_device *spi)
struct iio_dev *indio_dev = spi_get_drvdata(spi);
struct sca3000_state *st = iio_priv(indio_dev);
/* Must ensure no interrupts can be generated after this!*/
/* Must ensure no interrupts can be generated after this! */
sca3000_stop_all_interrupts(st);
if (spi->irq)
free_irq(spi->irq, indio_dev);

4
drivers/staging/iio/adc/mxs-lradc.c
View File

@ -897,10 +897,6 @@ static int mxs_lradc_read_raw(struct iio_dev *iio_dev,
{
struct mxs_lradc *lradc = iio_priv(iio_dev);
/* Check for invalid channel */
if (chan->channel > LRADC_MAX_TOTAL_CHANS)
return -EINVAL;
switch (m) {
case IIO_CHAN_INFO_RAW:
if (chan->type == IIO_TEMP)