Merge tag 'iio-for-3.11b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
Second round of IIO new stuff and cleanups for the 3.11 cycle.
1) Pressure sensor support in the st sensors driver - LPS331AP currently.
2) Graduation of generic interrupt from staging with some related cleanup.
3) A number of platform_set_drvdata on remove removals.
4) 2 conditional build changes to prevent device tree structures from being
built in when device tree isn't enabled. These just save a bit of space
rather than being strictly required at the moment.
5) A couple of strict_strtoul -> kstrtoul conversions.
diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
index daa3ddd..9af763a 100644
--- a/drivers/iio/Kconfig
+++ b/drivers/iio/Kconfig
@@ -73,5 +73,6 @@
if IIO_TRIGGER
source "drivers/iio/trigger/Kconfig"
endif #IIO_TRIGGER
+source "drivers/iio/pressure/Kconfig"
endif # IIO
diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile
index a349a96..7a3866c 100644
--- a/drivers/iio/Makefile
+++ b/drivers/iio/Makefile
@@ -22,3 +22,4 @@
obj-y += light/
obj-y += magnetometer/
obj-y += trigger/
+obj-y += pressure/
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index e0f5a3c..4aec121 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -26,6 +26,8 @@
#include <linux/iio/common/st_sensors.h>
#include "st_accel.h"
+#define ST_ACCEL_NUMBER_DATA_CHANNELS 3
+
/* DEFAULT VALUE FOR SENSORS */
#define ST_ACCEL_DEFAULT_OUT_X_L_ADDR 0x28
#define ST_ACCEL_DEFAULT_OUT_Y_L_ADDR 0x2a
@@ -125,22 +127,34 @@
#define ST_ACCEL_3_MULTIREAD_BIT false
static const struct iio_chan_spec st_accel_12bit_channels[] = {
- ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, ST_SENSORS_SCAN_X, IIO_MOD_X, IIO_LE,
- ST_SENSORS_DEFAULT_12_REALBITS, ST_ACCEL_DEFAULT_OUT_X_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, ST_SENSORS_SCAN_Y, IIO_MOD_Y, IIO_LE,
- ST_SENSORS_DEFAULT_12_REALBITS, ST_ACCEL_DEFAULT_OUT_Y_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, ST_SENSORS_SCAN_Z, IIO_MOD_Z, IIO_LE,
- ST_SENSORS_DEFAULT_12_REALBITS, ST_ACCEL_DEFAULT_OUT_Z_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 12, 16,
+ ST_ACCEL_DEFAULT_OUT_X_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 12, 16,
+ ST_ACCEL_DEFAULT_OUT_Y_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 12, 16,
+ ST_ACCEL_DEFAULT_OUT_Z_L_ADDR),
IIO_CHAN_SOFT_TIMESTAMP(3)
};
static const struct iio_chan_spec st_accel_16bit_channels[] = {
- ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, ST_SENSORS_SCAN_X, IIO_MOD_X, IIO_LE,
- ST_SENSORS_DEFAULT_16_REALBITS, ST_ACCEL_DEFAULT_OUT_X_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, ST_SENSORS_SCAN_Y, IIO_MOD_Y, IIO_LE,
- ST_SENSORS_DEFAULT_16_REALBITS, ST_ACCEL_DEFAULT_OUT_Y_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, ST_SENSORS_SCAN_Z, IIO_MOD_Z, IIO_LE,
- ST_SENSORS_DEFAULT_16_REALBITS, ST_ACCEL_DEFAULT_OUT_Z_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16,
+ ST_ACCEL_DEFAULT_OUT_X_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16,
+ ST_ACCEL_DEFAULT_OUT_Y_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16,
+ ST_ACCEL_DEFAULT_OUT_Z_L_ADDR),
IIO_CHAN_SOFT_TIMESTAMP(3)
};
@@ -442,6 +456,7 @@
if (err < 0)
goto st_accel_common_probe_error;
+ adata->num_data_channels = ST_ACCEL_NUMBER_DATA_CHANNELS;
adata->multiread_bit = adata->sensor->multi_read_bit;
indio_dev->channels = adata->sensor->ch;
indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index e5b88d5..b6db6a0 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -774,11 +774,13 @@
return 0;
}
+#ifdef CONFIG_OF
static const struct of_device_id at91_adc_dt_ids[] = {
{ .compatible = "atmel,at91sam9260-adc" },
{},
};
MODULE_DEVICE_TABLE(of, at91_adc_dt_ids);
+#endif
static struct platform_driver at91_adc_driver = {
.probe = at91_adc_probe,
diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c
index 9e6da72..f148d00 100644
--- a/drivers/iio/adc/max1363.c
+++ b/drivers/iio/adc/max1363.c
@@ -660,7 +660,7 @@
unsigned long val;
bool found = false;
- ret = strict_strtoul(buf, 10, &val);
+ ret = kstrtoul(buf, 10, &val);
if (ret)
return -EINVAL;
for (i = 0; i < ARRAY_SIZE(max1363_monitor_speeds); i++)
diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c
index 09b236d..71a2c5f 100644
--- a/drivers/iio/common/st_sensors/st_sensors_buffer.c
+++ b/drivers/iio/common/st_sensors/st_sensors_buffer.c
@@ -24,11 +24,20 @@
int st_sensors_get_buffer_element(struct iio_dev *indio_dev, u8 *buf)
{
+ u8 *addr;
int i, n = 0, len;
- u8 addr[ST_SENSORS_NUMBER_DATA_CHANNELS];
struct st_sensor_data *sdata = iio_priv(indio_dev);
+ unsigned int num_data_channels = sdata->num_data_channels;
+ unsigned int byte_for_channel =
+ indio_dev->channels[0].scan_type.storagebits >> 3;
- for (i = 0; i < ST_SENSORS_NUMBER_DATA_CHANNELS; i++) {
+ addr = kmalloc(num_data_channels, GFP_KERNEL);
+ if (!addr) {
+ len = -ENOMEM;
+ goto st_sensors_get_buffer_element_error;
+ }
+
+ for (i = 0; i < num_data_channels; i++) {
if (test_bit(i, indio_dev->active_scan_mask)) {
addr[n] = indio_dev->channels[i].address;
n++;
@@ -37,52 +46,58 @@
switch (n) {
case 1:
len = sdata->tf->read_multiple_byte(&sdata->tb, sdata->dev,
- addr[0], ST_SENSORS_BYTE_FOR_CHANNEL, buf,
- sdata->multiread_bit);
+ addr[0], byte_for_channel, buf, sdata->multiread_bit);
break;
case 2:
- if ((addr[1] - addr[0]) == ST_SENSORS_BYTE_FOR_CHANNEL) {
+ if ((addr[1] - addr[0]) == byte_for_channel) {
len = sdata->tf->read_multiple_byte(&sdata->tb,
- sdata->dev, addr[0],
- ST_SENSORS_BYTE_FOR_CHANNEL*n,
- buf, sdata->multiread_bit);
+ sdata->dev, addr[0], byte_for_channel * n,
+ buf, sdata->multiread_bit);
} else {
- u8 rx_array[ST_SENSORS_BYTE_FOR_CHANNEL*
- ST_SENSORS_NUMBER_DATA_CHANNELS];
+ u8 *rx_array;
+ rx_array = kmalloc(byte_for_channel * num_data_channels,
+ GFP_KERNEL);
+ if (!rx_array) {
+ len = -ENOMEM;
+ goto st_sensors_free_memory;
+ }
+
len = sdata->tf->read_multiple_byte(&sdata->tb,
sdata->dev, addr[0],
- ST_SENSORS_BYTE_FOR_CHANNEL*
- ST_SENSORS_NUMBER_DATA_CHANNELS,
+ byte_for_channel * num_data_channels,
rx_array, sdata->multiread_bit);
- if (len < 0)
- goto read_data_channels_error;
+ if (len < 0) {
+ kfree(rx_array);
+ goto st_sensors_free_memory;
+ }
- for (i = 0; i < n * ST_SENSORS_NUMBER_DATA_CHANNELS;
- i++) {
+ for (i = 0; i < n * num_data_channels; i++) {
if (i < n)
buf[i] = rx_array[i];
else
buf[i] = rx_array[n + i];
}
- len = ST_SENSORS_BYTE_FOR_CHANNEL*n;
+ kfree(rx_array);
+ len = byte_for_channel * n;
}
break;
case 3:
len = sdata->tf->read_multiple_byte(&sdata->tb, sdata->dev,
- addr[0], ST_SENSORS_BYTE_FOR_CHANNEL*
- ST_SENSORS_NUMBER_DATA_CHANNELS,
+ addr[0], byte_for_channel * num_data_channels,
buf, sdata->multiread_bit);
break;
default:
len = -EINVAL;
- goto read_data_channels_error;
+ goto st_sensors_free_memory;
}
- if (len != ST_SENSORS_BYTE_FOR_CHANNEL*n) {
+ if (len != byte_for_channel * n) {
len = -EIO;
- goto read_data_channels_error;
+ goto st_sensors_free_memory;
}
-read_data_channels_error:
+st_sensors_free_memory:
+ kfree(addr);
+st_sensors_get_buffer_element_error:
return len;
}
EXPORT_SYMBOL(st_sensors_get_buffer_element);
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index ed9bc8a..865b178 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -20,6 +20,11 @@
#define ST_SENSORS_WAI_ADDRESS 0x0f
+static inline u32 st_sensors_get_unaligned_le24(const u8 *p)
+{
+ return ((s32)((p[0] | p[1] << 8 | p[2] << 16) << 8) >> 8);
+}
+
static int st_sensors_write_data_with_mask(struct iio_dev *indio_dev,
u8 reg_addr, u8 mask, u8 data)
{
@@ -112,7 +117,8 @@
return ret;
}
-static int st_sensors_set_fullscale(struct iio_dev *indio_dev, unsigned int fs)
+static int st_sensors_set_fullscale(struct iio_dev *indio_dev,
+ unsigned int fs)
{
int err, i = 0;
struct st_sensor_data *sdata = iio_priv(indio_dev);
@@ -273,21 +279,33 @@
EXPORT_SYMBOL(st_sensors_set_fullscale_by_gain);
static int st_sensors_read_axis_data(struct iio_dev *indio_dev,
- u8 ch_addr, int *data)
+ struct iio_chan_spec const *ch, int *data)
{
int err;
- u8 outdata[ST_SENSORS_BYTE_FOR_CHANNEL];
+ u8 *outdata;
struct st_sensor_data *sdata = iio_priv(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;
+ }
err = sdata->tf->read_multiple_byte(&sdata->tb, sdata->dev,
- ch_addr, ST_SENSORS_BYTE_FOR_CHANNEL,
+ ch->address, byte_for_channel,
outdata, sdata->multiread_bit);
if (err < 0)
- goto read_error;
+ goto st_sensors_free_memory;
- *data = (s16)get_unaligned_le16(outdata);
+ if (byte_for_channel == 2)
+ *data = (s16)get_unaligned_le16(outdata);
+ else if (byte_for_channel == 3)
+ *data = (s32)st_sensors_get_unaligned_le24(outdata);
-read_error:
+st_sensors_free_memory:
+ kfree(outdata);
+st_sensors_read_axis_data_error:
return err;
}
@@ -307,7 +325,7 @@
goto read_error;
msleep((sdata->sensor->bootime * 1000) / sdata->odr);
- err = st_sensors_read_axis_data(indio_dev, ch->address, val);
+ err = st_sensors_read_axis_data(indio_dev, ch, val);
if (err < 0)
goto read_error;
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index fa9b242..f9ed348 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -27,6 +27,8 @@
#include <linux/iio/common/st_sensors.h>
#include "st_gyro.h"
+#define ST_GYRO_NUMBER_DATA_CHANNELS 3
+
/* DEFAULT VALUE FOR SENSORS */
#define ST_GYRO_DEFAULT_OUT_X_L_ADDR 0x28
#define ST_GYRO_DEFAULT_OUT_Y_L_ADDR 0x2a
@@ -86,15 +88,18 @@
#define ST_GYRO_2_MULTIREAD_BIT true
static const struct iio_chan_spec st_gyro_16bit_channels[] = {
- ST_SENSORS_LSM_CHANNELS(IIO_ANGL_VEL, ST_SENSORS_SCAN_X,
- IIO_MOD_X, IIO_LE, ST_SENSORS_DEFAULT_16_REALBITS,
- ST_GYRO_DEFAULT_OUT_X_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_ANGL_VEL, ST_SENSORS_SCAN_Y,
- IIO_MOD_Y, IIO_LE, ST_SENSORS_DEFAULT_16_REALBITS,
- ST_GYRO_DEFAULT_OUT_Y_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_ANGL_VEL, ST_SENSORS_SCAN_Z,
- IIO_MOD_Z, IIO_LE, ST_SENSORS_DEFAULT_16_REALBITS,
- ST_GYRO_DEFAULT_OUT_Z_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_ANGL_VEL,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16,
+ ST_GYRO_DEFAULT_OUT_X_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_ANGL_VEL,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16,
+ ST_GYRO_DEFAULT_OUT_Y_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_ANGL_VEL,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16,
+ ST_GYRO_DEFAULT_OUT_Z_L_ADDR),
IIO_CHAN_SOFT_TIMESTAMP(3)
};
@@ -310,6 +315,7 @@
if (err < 0)
goto st_gyro_common_probe_error;
+ gdata->num_data_channels = ST_GYRO_NUMBER_DATA_CHANNELS;
gdata->multiread_bit = gdata->sensor->multi_read_bit;
indio_dev->channels = gdata->sensor->ch;
indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index 16f0d6d..ebfe8f1 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -26,6 +26,8 @@
#include <linux/iio/common/st_sensors.h>
#include "st_magn.h"
+#define ST_MAGN_NUMBER_DATA_CHANNELS 3
+
/* DEFAULT VALUE FOR SENSORS */
#define ST_MAGN_DEFAULT_OUT_X_L_ADDR 0X04
#define ST_MAGN_DEFAULT_OUT_Y_L_ADDR 0X08
@@ -113,22 +115,34 @@
#define ST_MAGN_2_OUT_Z_L_ADDR 0x2c
static const struct iio_chan_spec st_magn_16bit_channels[] = {
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN, ST_SENSORS_SCAN_X, IIO_MOD_X, IIO_LE,
- ST_SENSORS_DEFAULT_16_REALBITS, ST_MAGN_DEFAULT_OUT_X_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN, ST_SENSORS_SCAN_Y, IIO_MOD_Y, IIO_LE,
- ST_SENSORS_DEFAULT_16_REALBITS, ST_MAGN_DEFAULT_OUT_Y_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN, ST_SENSORS_SCAN_Z, IIO_MOD_Z, IIO_LE,
- ST_SENSORS_DEFAULT_16_REALBITS, ST_MAGN_DEFAULT_OUT_Z_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16,
+ ST_MAGN_DEFAULT_OUT_X_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16,
+ ST_MAGN_DEFAULT_OUT_Y_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16,
+ ST_MAGN_DEFAULT_OUT_Z_L_ADDR),
IIO_CHAN_SOFT_TIMESTAMP(3)
};
static const struct iio_chan_spec st_magn_2_16bit_channels[] = {
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN, ST_SENSORS_SCAN_X, IIO_MOD_X, IIO_LE,
- ST_SENSORS_DEFAULT_16_REALBITS, ST_MAGN_2_OUT_X_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN, ST_SENSORS_SCAN_Y, IIO_MOD_Y, IIO_LE,
- ST_SENSORS_DEFAULT_16_REALBITS, ST_MAGN_2_OUT_Y_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN, ST_SENSORS_SCAN_Z, IIO_MOD_Z, IIO_LE,
- ST_SENSORS_DEFAULT_16_REALBITS, ST_MAGN_2_OUT_Z_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16,
+ ST_MAGN_2_OUT_X_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16,
+ ST_MAGN_2_OUT_Y_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16,
+ ST_MAGN_2_OUT_Z_L_ADDR),
IIO_CHAN_SOFT_TIMESTAMP(3)
};
@@ -344,6 +358,7 @@
if (err < 0)
goto st_magn_common_probe_error;
+ mdata->num_data_channels = ST_MAGN_NUMBER_DATA_CHANNELS;
mdata->multiread_bit = mdata->sensor->multi_read_bit;
indio_dev->channels = mdata->sensor->ch;
indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;
diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig
new file mode 100644
index 0000000..9427f01
--- /dev/null
+++ b/drivers/iio/pressure/Kconfig
@@ -0,0 +1,35 @@
+#
+# Pressure drivers
+#
+menu "Pressure Sensors"
+
+config IIO_ST_PRESS
+ tristate "STMicroelectronics pressures Driver"
+ depends on (I2C || SPI_MASTER) && SYSFS
+ select IIO_ST_SENSORS_CORE
+ select IIO_ST_PRESS_I2C if (I2C)
+ select IIO_ST_PRESS_SPI if (SPI_MASTER)
+ select IIO_TRIGGERED_BUFFER if (IIO_BUFFER)
+ help
+ Say yes here to build support for STMicroelectronics pressures:
+ LPS331AP.
+
+ This driver can also be built as a module. If so, will be created
+ these modules:
+ - st_pressure (core functions for the driver [it is mandatory]);
+ - st_pressure_i2c (necessary for the I2C devices [optional*]);
+ - st_pressure_spi (necessary for the SPI devices [optional*]);
+
+ (*) one of these is necessary to do something.
+
+config IIO_ST_PRESS_I2C
+ tristate
+ depends on IIO_ST_PRESS
+ depends on IIO_ST_SENSORS_I2C
+
+config IIO_ST_PRESS_SPI
+ tristate
+ depends on IIO_ST_PRESS
+ depends on IIO_ST_SENSORS_SPI
+
+endmenu
diff --git a/drivers/iio/pressure/Makefile b/drivers/iio/pressure/Makefile
new file mode 100644
index 0000000..d4bb33e
--- /dev/null
+++ b/drivers/iio/pressure/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for industrial I/O pressure drivers
+#
+
+obj-$(CONFIG_IIO_ST_PRESS) += st_pressure.o
+st_pressure-y := st_pressure_core.o
+st_pressure-$(CONFIG_IIO_BUFFER) += st_pressure_buffer.o
+
+obj-$(CONFIG_IIO_ST_PRESS_I2C) += st_pressure_i2c.o
+obj-$(CONFIG_IIO_ST_PRESS_SPI) += st_pressure_spi.o
diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h
new file mode 100644
index 0000000..414e45a
--- /dev/null
+++ b/drivers/iio/pressure/st_pressure.h
@@ -0,0 +1,39 @@
+/*
+ * STMicroelectronics pressures driver
+ *
+ * Copyright 2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ * v. 1.0.0
+ * Licensed under the GPL-2.
+ */
+
+#ifndef ST_PRESS_H
+#define ST_PRESS_H
+
+#include <linux/types.h>
+#include <linux/iio/common/st_sensors.h>
+
+#define LPS331AP_PRESS_DEV_NAME "lps331ap"
+
+int st_press_common_probe(struct iio_dev *indio_dev);
+void st_press_common_remove(struct iio_dev *indio_dev);
+
+#ifdef CONFIG_IIO_BUFFER
+int st_press_allocate_ring(struct iio_dev *indio_dev);
+void st_press_deallocate_ring(struct iio_dev *indio_dev);
+int st_press_trig_set_state(struct iio_trigger *trig, bool state);
+#define ST_PRESS_TRIGGER_SET_STATE (&st_press_trig_set_state)
+#else /* CONFIG_IIO_BUFFER */
+static inline int st_press_allocate_ring(struct iio_dev *indio_dev)
+{
+ return 0;
+}
+
+static inline void st_press_deallocate_ring(struct iio_dev *indio_dev)
+{
+}
+#define ST_PRESS_TRIGGER_SET_STATE NULL
+#endif /* CONFIG_IIO_BUFFER */
+
+#endif /* ST_PRESS_H */
diff --git a/drivers/iio/pressure/st_pressure_buffer.c b/drivers/iio/pressure/st_pressure_buffer.c
new file mode 100644
index 0000000..f877ef8
--- /dev/null
+++ b/drivers/iio/pressure/st_pressure_buffer.c
@@ -0,0 +1,105 @@
+/*
+ * STMicroelectronics pressures driver
+ *
+ * Copyright 2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+
+#include <linux/iio/common/st_sensors.h>
+#include "st_pressure.h"
+
+int st_press_trig_set_state(struct iio_trigger *trig, bool state)
+{
+ struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+
+ return st_sensors_set_dataready_irq(indio_dev, state);
+}
+
+static int st_press_buffer_preenable(struct iio_dev *indio_dev)
+{
+ int err;
+
+ err = st_sensors_set_enable(indio_dev, true);
+ if (err < 0)
+ goto st_press_set_enable_error;
+
+ err = iio_sw_buffer_preenable(indio_dev);
+
+st_press_set_enable_error:
+ return err;
+}
+
+static int st_press_buffer_postenable(struct iio_dev *indio_dev)
+{
+ int err;
+ struct st_sensor_data *pdata = iio_priv(indio_dev);
+
+ pdata->buffer_data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
+ if (pdata->buffer_data == NULL) {
+ err = -ENOMEM;
+ goto allocate_memory_error;
+ }
+
+ err = iio_triggered_buffer_postenable(indio_dev);
+ if (err < 0)
+ goto st_press_buffer_postenable_error;
+
+ return err;
+
+st_press_buffer_postenable_error:
+ kfree(pdata->buffer_data);
+allocate_memory_error:
+ return err;
+}
+
+static int st_press_buffer_predisable(struct iio_dev *indio_dev)
+{
+ int err;
+ struct st_sensor_data *pdata = iio_priv(indio_dev);
+
+ err = iio_triggered_buffer_predisable(indio_dev);
+ if (err < 0)
+ goto st_press_buffer_predisable_error;
+
+ err = st_sensors_set_enable(indio_dev, false);
+
+st_press_buffer_predisable_error:
+ kfree(pdata->buffer_data);
+ return err;
+}
+
+static const struct iio_buffer_setup_ops st_press_buffer_setup_ops = {
+ .preenable = &st_press_buffer_preenable,
+ .postenable = &st_press_buffer_postenable,
+ .predisable = &st_press_buffer_predisable,
+};
+
+int st_press_allocate_ring(struct iio_dev *indio_dev)
+{
+ return iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
+ &st_sensors_trigger_handler, &st_press_buffer_setup_ops);
+}
+
+void st_press_deallocate_ring(struct iio_dev *indio_dev)
+{
+ iio_triggered_buffer_cleanup(indio_dev);
+}
+
+MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics pressures buffer");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
new file mode 100644
index 0000000..9c343b4
--- /dev/null
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -0,0 +1,272 @@
+/*
+ * STMicroelectronics pressures driver
+ *
+ * Copyright 2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/mutex.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/buffer.h>
+#include <asm/unaligned.h>
+
+#include <linux/iio/common/st_sensors.h>
+#include "st_pressure.h"
+
+#define ST_PRESS_MBAR_TO_KPASCAL(x) (x * 10)
+#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_MBAR_TO_KPASCAL(244141)
+#define ST_PRESS_1_FS_AVL_TEMP_GAIN 2083000
+#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_MASK 0x04
+#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,
+ 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),
+ IIO_CHAN_SOFT_TIMESTAMP(1)
+};
+
+static const struct st_sensors st_press_sensors[] = {
+ {
+ .wai = ST_PRESS_1_WAI_EXP,
+ .sensors_supported = {
+ [0] = LPS331AP_PRESS_DEV_NAME,
+ },
+ .ch = (struct iio_chan_spec *)st_press_channels,
+ .odr = {
+ .addr = ST_PRESS_1_ODR_ADDR,
+ .mask = ST_PRESS_1_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, },
+ },
+ },
+ .pw = {
+ .addr = ST_PRESS_1_PW_ADDR,
+ .mask = ST_PRESS_1_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,
+ .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,
+ },
+ },
+ },
+ .bdu = {
+ .addr = ST_PRESS_1_BDU_ADDR,
+ .mask = ST_PRESS_1_BDU_MASK,
+ },
+ .drdy_irq = {
+ .addr = ST_PRESS_1_DRDY_IRQ_ADDR,
+ .mask = ST_PRESS_1_DRDY_IRQ_MASK,
+ },
+ .multi_read_bit = ST_PRESS_1_MULTIREAD_BIT,
+ .bootime = 2,
+ },
+};
+
+static int st_press_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *ch, int *val,
+ int *val2, long mask)
+{
+ int err;
+ struct st_sensor_data *pdata = iio_priv(indio_dev);
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ err = st_sensors_read_info_raw(indio_dev, ch, val);
+ if (err < 0)
+ goto read_error;
+
+ return IIO_VAL_INT;
+ case IIO_CHAN_INFO_SCALE:
+ *val = 0;
+
+ switch (ch->type) {
+ case IIO_PRESSURE:
+ *val2 = pdata->current_fullscale->gain;
+ break;
+ case IIO_TEMP:
+ *val2 = pdata->current_fullscale->gain2;
+ break;
+ default:
+ err = -EINVAL;
+ goto read_error;
+ }
+
+ return IIO_VAL_INT_PLUS_NANO;
+ case IIO_CHAN_INFO_OFFSET:
+ switch (ch->type) {
+ case IIO_TEMP:
+ *val = 425;
+ *val2 = 10;
+ break;
+ default:
+ err = -EINVAL;
+ goto read_error;
+ }
+
+ return IIO_VAL_FRACTIONAL;
+ default:
+ return -EINVAL;
+ }
+
+read_error:
+ return err;
+}
+
+static ST_SENSOR_DEV_ATTR_SAMP_FREQ();
+static ST_SENSORS_DEV_ATTR_SAMP_FREQ_AVAIL();
+
+static struct attribute *st_press_attributes[] = {
+ &iio_dev_attr_sampling_frequency_available.dev_attr.attr,
+ &iio_dev_attr_sampling_frequency.dev_attr.attr,
+ NULL,
+};
+
+static const struct attribute_group st_press_attribute_group = {
+ .attrs = st_press_attributes,
+};
+
+static const struct iio_info press_info = {
+ .driver_module = THIS_MODULE,
+ .attrs = &st_press_attribute_group,
+ .read_raw = &st_press_read_raw,
+};
+
+#ifdef CONFIG_IIO_TRIGGER
+static const struct iio_trigger_ops st_press_trigger_ops = {
+ .owner = THIS_MODULE,
+ .set_trigger_state = ST_PRESS_TRIGGER_SET_STATE,
+};
+#define ST_PRESS_TRIGGER_OPS (&st_press_trigger_ops)
+#else
+#define ST_PRESS_TRIGGER_OPS NULL
+#endif
+
+int st_press_common_probe(struct iio_dev *indio_dev)
+{
+ int err;
+ struct st_sensor_data *pdata = iio_priv(indio_dev);
+
+ 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);
+ if (err < 0)
+ goto st_press_common_probe_error;
+
+ 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->current_fullscale = (struct st_sensor_fullscale_avl *)
+ &pdata->sensor->fs.fs_avl[0];
+ pdata->odr = pdata->sensor->odr.odr_avl[0].hz;
+
+ err = st_sensors_init_sensor(indio_dev);
+ if (err < 0)
+ goto st_press_common_probe_error;
+
+ 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_sensors_allocate_trigger(indio_dev,
+ ST_PRESS_TRIGGER_OPS);
+ if (err < 0)
+ goto st_press_probe_trigger_error;
+ }
+
+ err = iio_device_register(indio_dev);
+ if (err)
+ goto st_press_device_register_error;
+
+ return err;
+
+st_press_device_register_error:
+ if (pdata->get_irq_data_ready(indio_dev) > 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:
+ return err;
+}
+EXPORT_SYMBOL(st_press_common_probe);
+
+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) {
+ st_sensors_deallocate_trigger(indio_dev);
+ st_press_deallocate_ring(indio_dev);
+ }
+ iio_device_free(indio_dev);
+}
+EXPORT_SYMBOL(st_press_common_remove);
+
+MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics pressures driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c
new file mode 100644
index 0000000..7cebcc7
--- /dev/null
+++ b/drivers/iio/pressure/st_pressure_i2c.c
@@ -0,0 +1,77 @@
+/*
+ * STMicroelectronics pressures driver
+ *
+ * Copyright 2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/iio/iio.h>
+
+#include <linux/iio/common/st_sensors.h>
+#include <linux/iio/common/st_sensors_i2c.h>
+#include "st_pressure.h"
+
+static int st_press_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct iio_dev *indio_dev;
+ struct st_sensor_data *pdata;
+ int err;
+
+ indio_dev = iio_device_alloc(sizeof(*pdata));
+ if (indio_dev == NULL) {
+ err = -ENOMEM;
+ goto iio_device_alloc_error;
+ }
+
+ pdata = iio_priv(indio_dev);
+ pdata->dev = &client->dev;
+
+ st_sensors_i2c_configure(indio_dev, client, pdata);
+
+ err = st_press_common_probe(indio_dev);
+ if (err < 0)
+ goto st_press_common_probe_error;
+
+ return 0;
+
+st_press_common_probe_error:
+ iio_device_free(indio_dev);
+iio_device_alloc_error:
+ return err;
+}
+
+static int st_press_i2c_remove(struct i2c_client *client)
+{
+ st_press_common_remove(i2c_get_clientdata(client));
+
+ return 0;
+}
+
+static const struct i2c_device_id st_press_id_table[] = {
+ { LPS331AP_PRESS_DEV_NAME },
+ {},
+};
+MODULE_DEVICE_TABLE(i2c, st_press_id_table);
+
+static struct i2c_driver st_press_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "st-press-i2c",
+ },
+ .probe = st_press_i2c_probe,
+ .remove = st_press_i2c_remove,
+ .id_table = st_press_id_table,
+};
+module_i2c_driver(st_press_driver);
+
+MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c
new file mode 100644
index 0000000..17a1490
--- /dev/null
+++ b/drivers/iio/pressure/st_pressure_spi.c
@@ -0,0 +1,76 @@
+/*
+ * STMicroelectronics pressures driver
+ *
+ * Copyright 2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/iio/iio.h>
+
+#include <linux/iio/common/st_sensors.h>
+#include <linux/iio/common/st_sensors_spi.h>
+#include "st_pressure.h"
+
+static int st_press_spi_probe(struct spi_device *spi)
+{
+ struct iio_dev *indio_dev;
+ struct st_sensor_data *pdata;
+ int err;
+
+ indio_dev = iio_device_alloc(sizeof(*pdata));
+ if (indio_dev == NULL) {
+ err = -ENOMEM;
+ goto iio_device_alloc_error;
+ }
+
+ pdata = iio_priv(indio_dev);
+ pdata->dev = &spi->dev;
+
+ st_sensors_spi_configure(indio_dev, spi, pdata);
+
+ err = st_press_common_probe(indio_dev);
+ if (err < 0)
+ goto st_press_common_probe_error;
+
+ return 0;
+
+st_press_common_probe_error:
+ iio_device_free(indio_dev);
+iio_device_alloc_error:
+ return err;
+}
+
+static int st_press_spi_remove(struct spi_device *spi)
+{
+ st_press_common_remove(spi_get_drvdata(spi));
+
+ return 0;
+}
+
+static const struct spi_device_id st_press_id_table[] = {
+ { LPS331AP_PRESS_DEV_NAME },
+ {},
+};
+MODULE_DEVICE_TABLE(spi, st_press_id_table);
+
+static struct spi_driver st_press_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "st-press-spi",
+ },
+ .probe = st_press_spi_probe,
+ .remove = st_press_spi_remove,
+ .id_table = st_press_id_table,
+};
+module_spi_driver(st_press_driver);
+
+MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics pressures spi driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/trigger/Kconfig b/drivers/iio/trigger/Kconfig
index a4e68db..360fd50 100644
--- a/drivers/iio/trigger/Kconfig
+++ b/drivers/iio/trigger/Kconfig
@@ -3,6 +3,15 @@
#
menu "Triggers - standalone"
+config IIO_INTERRUPT_TRIGGER
+ tristate "Generic interrupt trigger"
+ help
+ Provides support for using an interrupt of any type as an IIO
+ trigger. This may be provided by a gpio driver for example.
+
+ To compile this driver as a module, choose M here: the
+ module will be called iio-trig-interrupt.
+
config IIO_SYSFS_TRIGGER
tristate "SYSFS trigger"
depends on SYSFS
diff --git a/drivers/iio/trigger/Makefile b/drivers/iio/trigger/Makefile
index e0b2183..ce319a5 100644
--- a/drivers/iio/trigger/Makefile
+++ b/drivers/iio/trigger/Makefile
@@ -2,4 +2,5 @@
# Makefile for triggers not associated with iio-devices
#
+obj-$(CONFIG_IIO_INTERRUPT_TRIGGER) += iio-trig-interrupt.o
obj-$(CONFIG_IIO_SYSFS_TRIGGER) += iio-trig-sysfs.o
diff --git a/drivers/iio/trigger/iio-trig-interrupt.c b/drivers/iio/trigger/iio-trig-interrupt.c
new file mode 100644
index 0000000..02577ec
--- /dev/null
+++ b/drivers/iio/trigger/iio-trig-interrupt.c
@@ -0,0 +1,121 @@
+/*
+ * Industrial I/O - generic interrupt based trigger support
+ *
+ * Copyright (c) 2008-2013 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/trigger.h>
+
+
+struct iio_interrupt_trigger_info {
+ unsigned int irq;
+};
+
+static irqreturn_t iio_interrupt_trigger_poll(int irq, void *private)
+{
+ /* Timestamp not currently provided */
+ iio_trigger_poll(private, 0);
+ return IRQ_HANDLED;
+}
+
+static const struct iio_trigger_ops iio_interrupt_trigger_ops = {
+ .owner = THIS_MODULE,
+};
+
+static int iio_interrupt_trigger_probe(struct platform_device *pdev)
+{
+ struct iio_interrupt_trigger_info *trig_info;
+ struct iio_trigger *trig;
+ unsigned long irqflags;
+ struct resource *irq_res;
+ int irq, ret = 0;
+
+ irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+
+ if (irq_res == NULL)
+ return -ENODEV;
+
+ irqflags = (irq_res->flags & IRQF_TRIGGER_MASK) | IRQF_SHARED;
+
+ irq = irq_res->start;
+
+ trig = iio_trigger_alloc("irqtrig%d", irq);
+ if (!trig) {
+ ret = -ENOMEM;
+ goto error_ret;
+ }
+
+ trig_info = kzalloc(sizeof(*trig_info), GFP_KERNEL);
+ if (!trig_info) {
+ ret = -ENOMEM;
+ goto error_put_trigger;
+ }
+ iio_trigger_set_drvdata(trig, trig_info);
+ trig_info->irq = irq;
+ trig->ops = &iio_interrupt_trigger_ops;
+ ret = request_irq(irq, iio_interrupt_trigger_poll,
+ irqflags, trig->name, trig);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "request IRQ-%d failed", irq);
+ goto error_free_trig_info;
+ }
+
+ ret = iio_trigger_register(trig);
+ if (ret)
+ goto error_release_irq;
+ platform_set_drvdata(pdev, trig);
+
+ return 0;
+
+/* First clean up the partly allocated trigger */
+error_release_irq:
+ free_irq(irq, trig);
+error_free_trig_info:
+ kfree(trig_info);
+error_put_trigger:
+ iio_trigger_put(trig);
+error_ret:
+ return ret;
+}
+
+static int iio_interrupt_trigger_remove(struct platform_device *pdev)
+{
+ struct iio_trigger *trig;
+ struct iio_interrupt_trigger_info *trig_info;
+
+ trig = platform_get_drvdata(pdev);
+ trig_info = iio_trigger_get_drvdata(trig);
+ iio_trigger_unregister(trig);
+ free_irq(trig_info->irq, trig);
+ kfree(trig_info);
+ iio_trigger_put(trig);
+
+ return 0;
+}
+
+static struct platform_driver iio_interrupt_trigger_driver = {
+ .probe = iio_interrupt_trigger_probe,
+ .remove = iio_interrupt_trigger_remove,
+ .driver = {
+ .name = "iio_interrupt_trigger",
+ .owner = THIS_MODULE,
+ },
+};
+
+module_platform_driver(iio_interrupt_trigger_driver);
+
+MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
+MODULE_DESCRIPTION("Interrupt trigger for the iio subsystem");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/trigger/iio-trig-sysfs.c b/drivers/iio/trigger/iio-trig-sysfs.c
index b727bde..effcd0a 100644
--- a/drivers/iio/trigger/iio-trig-sysfs.c
+++ b/drivers/iio/trigger/iio-trig-sysfs.c
@@ -34,7 +34,7 @@
int ret;
unsigned long input;
- ret = strict_strtoul(buf, 10, &input);
+ ret = kstrtoul(buf, 10, &input);
if (ret)
return ret;
ret = iio_sysfs_trigger_probe(input);
@@ -53,7 +53,7 @@
int ret;
unsigned long input;
- ret = strict_strtoul(buf, 10, &input);
+ ret = kstrtoul(buf, 10, &input);
if (ret)
return ret;
ret = iio_sysfs_trigger_remove(input);
diff --git a/drivers/staging/iio/adc/ad7606_par.c b/drivers/staging/iio/adc/ad7606_par.c
index 58cfdde..8a48d18 100644
--- a/drivers/staging/iio/adc/ad7606_par.c
+++ b/drivers/staging/iio/adc/ad7606_par.c
@@ -112,8 +112,6 @@
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, resource_size(res));
- platform_set_drvdata(pdev, NULL);
-
return 0;
}
diff --git a/drivers/staging/iio/adc/lpc32xx_adc.c b/drivers/staging/iio/adc/lpc32xx_adc.c
index 2f2f7fd..9a4bb09 100644
--- a/drivers/staging/iio/adc/lpc32xx_adc.c
+++ b/drivers/staging/iio/adc/lpc32xx_adc.c
@@ -215,7 +215,6 @@
iio_device_unregister(iodev);
free_irq(irq, info);
- platform_set_drvdata(pdev, NULL);
clk_put(info->clk);
iounmap(info->adc_base);
iio_device_free(iodev);
diff --git a/drivers/staging/iio/adc/spear_adc.c b/drivers/staging/iio/adc/spear_adc.c
index f45da42..736219c 100644
--- a/drivers/staging/iio/adc/spear_adc.c
+++ b/drivers/staging/iio/adc/spear_adc.c
@@ -407,7 +407,6 @@
struct spear_adc_info *info = iio_priv(iodev);
iio_device_unregister(iodev);
- platform_set_drvdata(pdev, NULL);
clk_disable_unprepare(info->clk);
clk_put(info->clk);
iounmap(info->adc_base_spear6xx);
@@ -416,11 +415,13 @@
return 0;
}
+#ifdef CONFIG_OF
static const struct of_device_id spear_adc_dt_ids[] = {
{ .compatible = "st,spear600-adc", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, spear_adc_dt_ids);
+#endif
static struct platform_driver spear_adc_driver = {
.probe = spear_adc_probe,
diff --git a/drivers/staging/iio/trigger/Kconfig b/drivers/staging/iio/trigger/Kconfig
index ae9fcd3..2fd18c6 100644
--- a/drivers/staging/iio/trigger/Kconfig
+++ b/drivers/staging/iio/trigger/Kconfig
@@ -12,12 +12,6 @@
Provides support for using periodic capable real time
clocks as IIO triggers.
-config IIO_GPIO_TRIGGER
- tristate "GPIO trigger"
- depends on GPIOLIB
- help
- Provides support for using GPIO pins as IIO triggers.
-
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 8a53041..238481b 100644
--- a/drivers/staging/iio/trigger/Makefile
+++ b/drivers/staging/iio/trigger/Makefile
@@ -3,5 +3,4 @@
#
obj-$(CONFIG_IIO_PERIODIC_RTC_TRIGGER) += iio-trig-periodic-rtc.o
-obj-$(CONFIG_IIO_GPIO_TRIGGER) += iio-trig-gpio.o
obj-$(CONFIG_IIO_BFIN_TMR_TRIGGER) += iio-trig-bfin-timer.o
diff --git a/drivers/staging/iio/trigger/iio-trig-gpio.c b/drivers/staging/iio/trigger/iio-trig-gpio.c
deleted file mode 100644
index 7c593d1..0000000
--- a/drivers/staging/iio/trigger/iio-trig-gpio.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * Industrial I/O - gpio based trigger support
- *
- * 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.
- *
- * Currently this is more of a functioning proof of concept than a full
- * fledged trigger driver.
- *
- * TODO:
- *
- * Add board config elements to allow specification of startup settings.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/gpio.h>
-#include <linux/slab.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/trigger.h>
-
-static LIST_HEAD(iio_gpio_trigger_list);
-static DEFINE_MUTEX(iio_gpio_trigger_list_lock);
-
-struct iio_gpio_trigger_info {
- struct mutex in_use;
- unsigned int irq;
-};
-/*
- * Need to reference count these triggers and only enable gpio interrupts
- * as appropriate.
- */
-
-/* So what functionality do we want in here?... */
-/* set high / low as interrupt type? */
-
-static irqreturn_t iio_gpio_trigger_poll(int irq, void *private)
-{
- /* Timestamp not currently provided */
- iio_trigger_poll(private, 0);
- return IRQ_HANDLED;
-}
-
-static const struct iio_trigger_ops iio_gpio_trigger_ops = {
- .owner = THIS_MODULE,
-};
-
-static int iio_gpio_trigger_probe(struct platform_device *pdev)
-{
- struct iio_gpio_trigger_info *trig_info;
- struct iio_trigger *trig, *trig2;
- unsigned long irqflags;
- struct resource *irq_res;
- int irq, ret = 0, irq_res_cnt = 0;
-
- do {
- irq_res = platform_get_resource(pdev,
- IORESOURCE_IRQ, irq_res_cnt);
-
- if (irq_res == NULL) {
- if (irq_res_cnt == 0)
- dev_err(&pdev->dev, "No GPIO IRQs specified");
- break;
- }
- irqflags = (irq_res->flags & IRQF_TRIGGER_MASK) | IRQF_SHARED;
-
- for (irq = irq_res->start; irq <= irq_res->end; irq++) {
-
- trig = iio_trigger_alloc("irqtrig%d", irq);
- if (!trig) {
- ret = -ENOMEM;
- goto error_free_completed_registrations;
- }
-
- trig_info = kzalloc(sizeof(*trig_info), GFP_KERNEL);
- if (!trig_info) {
- ret = -ENOMEM;
- goto error_put_trigger;
- }
- iio_trigger_set_drvdata(trig, trig_info);
- trig_info->irq = irq;
- trig->ops = &iio_gpio_trigger_ops;
- ret = request_irq(irq, iio_gpio_trigger_poll,
- irqflags, trig->name, trig);
- if (ret) {
- dev_err(&pdev->dev,
- "request IRQ-%d failed", irq);
- goto error_free_trig_info;
- }
-
- ret = iio_trigger_register(trig);
- if (ret)
- goto error_release_irq;
-
- list_add_tail(&trig->alloc_list,
- &iio_gpio_trigger_list);
- }
-
- irq_res_cnt++;
- } while (irq_res != NULL);
-
-
- return 0;
-
-/* First clean up the partly allocated trigger */
-error_release_irq:
- free_irq(irq, trig);
-error_free_trig_info:
- kfree(trig_info);
-error_put_trigger:
- iio_trigger_put(trig);
-error_free_completed_registrations:
- /* The rest should have been added to the iio_gpio_trigger_list */
- list_for_each_entry_safe(trig,
- trig2,
- &iio_gpio_trigger_list,
- alloc_list) {
- trig_info = iio_trigger_get_drvdata(trig);
- free_irq(gpio_to_irq(trig_info->irq), trig);
- kfree(trig_info);
- iio_trigger_unregister(trig);
- }
-
- return ret;
-}
-
-static int iio_gpio_trigger_remove(struct platform_device *pdev)
-{
- struct iio_trigger *trig, *trig2;
- struct iio_gpio_trigger_info *trig_info;
-
- mutex_lock(&iio_gpio_trigger_list_lock);
- list_for_each_entry_safe(trig,
- trig2,
- &iio_gpio_trigger_list,
- alloc_list) {
- trig_info = iio_trigger_get_drvdata(trig);
- iio_trigger_unregister(trig);
- free_irq(trig_info->irq, trig);
- kfree(trig_info);
- iio_trigger_put(trig);
- }
- mutex_unlock(&iio_gpio_trigger_list_lock);
-
- return 0;
-}
-
-static struct platform_driver iio_gpio_trigger_driver = {
- .probe = iio_gpio_trigger_probe,
- .remove = iio_gpio_trigger_remove,
- .driver = {
- .name = "iio_gpio_trigger",
- .owner = THIS_MODULE,
- },
-};
-
-module_platform_driver(iio_gpio_trigger_driver);
-
-MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
-MODULE_DESCRIPTION("Example gpio trigger for the iio subsystem");
-MODULE_LICENSE("GPL v2");
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index 172c5b2..72b2694 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -24,14 +24,10 @@
#define ST_SENSORS_FULLSCALE_AVL_MAX 10
#define ST_SENSORS_NUMBER_ALL_CHANNELS 4
-#define ST_SENSORS_NUMBER_DATA_CHANNELS 3
#define ST_SENSORS_ENABLE_ALL_AXIS 0x07
-#define ST_SENSORS_BYTE_FOR_CHANNEL 2
#define ST_SENSORS_SCAN_X 0
#define ST_SENSORS_SCAN_Y 1
#define ST_SENSORS_SCAN_Z 2
-#define ST_SENSORS_DEFAULT_12_REALBITS 12
-#define ST_SENSORS_DEFAULT_16_REALBITS 16
#define ST_SENSORS_DEFAULT_POWER_ON_VALUE 0x01
#define ST_SENSORS_DEFAULT_POWER_OFF_VALUE 0x00
#define ST_SENSORS_DEFAULT_WAI_ADDRESS 0x0f
@@ -42,20 +38,20 @@
#define ST_SENSORS_MAX_NAME 17
#define ST_SENSORS_MAX_4WAI 7
-#define ST_SENSORS_LSM_CHANNELS(device_type, index, mod, endian, bits, addr) \
+#define ST_SENSORS_LSM_CHANNELS(device_type, mask, index, mod, \
+ ch2, s, endian, rbits, sbits, addr) \
{ \
.type = device_type, \
- .modified = 1, \
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
- BIT(IIO_CHAN_INFO_SCALE), \
+ .modified = mod, \
+ .info_mask_separate = mask, \
.scan_index = index, \
- .channel2 = mod, \
+ .channel2 = ch2, \
.address = addr, \
.scan_type = { \
- .sign = 's', \
- .realbits = bits, \
- .shift = 16 - bits, \
- .storagebits = 16, \
+ .sign = s, \
+ .realbits = rbits, \
+ .shift = sbits - rbits, \
+ .storagebits = sbits, \
.endianness = endian, \
}, \
}
@@ -204,6 +200,7 @@
* @multiread_bit: Use or not particular bit for [I2C/SPI] multiread.
* @buffer_data: Data used by buffer part.
* @odr: Output data rate of the sensor [Hz].
+ * num_data_channels: Number of data channels used in buffer.
* @get_irq_data_ready: Function to get the IRQ used for data ready signal.
* @tf: Transfer function structure used by I/O operations.
* @tb: Transfer buffers and mutex used by I/O operations.
@@ -220,6 +217,7 @@
char *buffer_data;
unsigned int odr;
+ unsigned int num_data_channels;
unsigned int (*get_irq_data_ready) (struct iio_dev *indio_dev);
diff --git a/include/linux/iio/frequency/adf4350.h b/include/linux/iio/frequency/adf4350.h
index be91f34..ffd8c8f 100644
--- a/include/linux/iio/frequency/adf4350.h
+++ b/include/linux/iio/frequency/adf4350.h
@@ -1,7 +1,7 @@
/*
* ADF4350/ADF4351 SPI PLL driver
*
- * Copyright 2012 Analog Devices Inc.
+ * Copyright 2012-2013 Analog Devices Inc.
*
* Licensed under the GPL-2.
*/
@@ -41,7 +41,7 @@
#define ADF4350_REG2_RDIV2_EN (1 << 24)
#define ADF4350_REG2_RMULT2_EN (1 << 25)
#define ADF4350_REG2_MUXOUT(x) ((x) << 26)
-#define ADF4350_REG2_NOISE_MODE(x) ((x) << 29)
+#define ADF4350_REG2_NOISE_MODE(x) (((unsigned)(x)) << 29)
#define ADF4350_MUXOUT_THREESTATE 0
#define ADF4350_MUXOUT_DVDD 1
#define ADF4350_MUXOUT_GND 2
