Commit 93187840 authored by Denis CIOCCA's avatar Denis CIOCCA Committed by Jonathan Cameron

iio:pressure: Add support for LPS25H pressure sensor

This patch adds support for the new barometer sensor: LPS25H.
Signed-off-by: default avatarDenis Ciocca <denis.ciocca@st.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent f64a799b
...@@ -40,7 +40,7 @@ config IIO_ST_PRESS ...@@ -40,7 +40,7 @@ config IIO_ST_PRESS
select IIO_TRIGGERED_BUFFER if (IIO_BUFFER) select IIO_TRIGGERED_BUFFER if (IIO_BUFFER)
help help
Say yes here to build support for STMicroelectronics pressure Say yes here to build support for STMicroelectronics pressure
sensors: LPS001WP, LPS331AP. sensors: LPS001WP, LPS25H, LPS331AP.
This driver can also be built as a module. If so, these modules This driver can also be built as a module. If so, these modules
will be created: will be created:
......
...@@ -15,6 +15,7 @@ ...@@ -15,6 +15,7 @@
#include <linux/iio/common/st_sensors.h> #include <linux/iio/common/st_sensors.h>
#define LPS001WP_PRESS_DEV_NAME "lps001wp" #define LPS001WP_PRESS_DEV_NAME "lps001wp"
#define LPS25H_PRESS_DEV_NAME "lps25h"
#define LPS331AP_PRESS_DEV_NAME "lps331ap" #define LPS331AP_PRESS_DEV_NAME "lps331ap"
/** /**
......
...@@ -40,6 +40,9 @@ ...@@ -40,6 +40,9 @@
/* FULLSCALE */ /* FULLSCALE */
#define ST_PRESS_FS_AVL_1260MB 1260 #define ST_PRESS_FS_AVL_1260MB 1260
#define ST_PRESS_1_OUT_XL_ADDR 0x28
#define ST_TEMP_1_OUT_L_ADDR 0x2b
/* CUSTOM VALUES FOR LPS331AP SENSOR */ /* CUSTOM VALUES FOR LPS331AP SENSOR */
#define ST_PRESS_LPS331AP_WAI_EXP 0xbb #define ST_PRESS_LPS331AP_WAI_EXP 0xbb
#define ST_PRESS_LPS331AP_ODR_ADDR 0x20 #define ST_PRESS_LPS331AP_ODR_ADDR 0x20
...@@ -62,8 +65,6 @@ ...@@ -62,8 +65,6 @@
#define ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK 0x20 #define ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK 0x20
#define ST_PRESS_LPS331AP_MULTIREAD_BIT true #define ST_PRESS_LPS331AP_MULTIREAD_BIT true
#define ST_PRESS_LPS331AP_TEMP_OFFSET 42500 #define ST_PRESS_LPS331AP_TEMP_OFFSET 42500
#define ST_PRESS_LPS331AP_OUT_XL_ADDR 0x28
#define ST_TEMP_LPS331AP_OUT_L_ADDR 0x2b
/* CUSTOM VALUES FOR LPS001WP SENSOR */ /* CUSTOM VALUES FOR LPS001WP SENSOR */
#define ST_PRESS_LPS001WP_WAI_EXP 0xba #define ST_PRESS_LPS001WP_WAI_EXP 0xba
...@@ -80,11 +81,36 @@ ...@@ -80,11 +81,36 @@
#define ST_PRESS_LPS001WP_OUT_L_ADDR 0x28 #define ST_PRESS_LPS001WP_OUT_L_ADDR 0x28
#define ST_TEMP_LPS001WP_OUT_L_ADDR 0x2a #define ST_TEMP_LPS001WP_OUT_L_ADDR 0x2a
static const struct iio_chan_spec st_press_lps331ap_channels[] = { /* CUSTOM VALUES FOR LPS25H SENSOR */
#define ST_PRESS_LPS25H_WAI_EXP 0xbd
#define ST_PRESS_LPS25H_ODR_ADDR 0x20
#define ST_PRESS_LPS25H_ODR_MASK 0x70
#define ST_PRESS_LPS25H_ODR_AVL_1HZ_VAL 0x01
#define ST_PRESS_LPS25H_ODR_AVL_7HZ_VAL 0x02
#define ST_PRESS_LPS25H_ODR_AVL_13HZ_VAL 0x03
#define ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL 0x04
#define ST_PRESS_LPS25H_PW_ADDR 0x20
#define ST_PRESS_LPS25H_PW_MASK 0x80
#define ST_PRESS_LPS25H_FS_ADDR 0x00
#define ST_PRESS_LPS25H_FS_MASK 0x00
#define ST_PRESS_LPS25H_FS_AVL_1260_VAL 0x00
#define ST_PRESS_LPS25H_FS_AVL_1260_GAIN ST_PRESS_KPASCAL_NANO_SCALE
#define ST_PRESS_LPS25H_FS_AVL_TEMP_GAIN ST_PRESS_CELSIUS_NANO_SCALE
#define ST_PRESS_LPS25H_BDU_ADDR 0x20
#define ST_PRESS_LPS25H_BDU_MASK 0x04
#define ST_PRESS_LPS25H_DRDY_IRQ_ADDR 0x23
#define ST_PRESS_LPS25H_DRDY_IRQ_INT1_MASK 0x01
#define ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK 0x10
#define ST_PRESS_LPS25H_MULTIREAD_BIT true
#define ST_PRESS_LPS25H_TEMP_OFFSET 42500
#define ST_PRESS_LPS25H_OUT_XL_ADDR 0x28
#define ST_TEMP_LPS25H_OUT_L_ADDR 0x2b
static const struct iio_chan_spec st_press_1_channels[] = {
{ {
.type = IIO_PRESSURE, .type = IIO_PRESSURE,
.channel2 = IIO_NO_MOD, .channel2 = IIO_NO_MOD,
.address = ST_PRESS_LPS331AP_OUT_XL_ADDR, .address = ST_PRESS_1_OUT_XL_ADDR,
.scan_index = ST_SENSORS_SCAN_X, .scan_index = ST_SENSORS_SCAN_X,
.scan_type = { .scan_type = {
.sign = 'u', .sign = 'u',
...@@ -99,7 +125,7 @@ static const struct iio_chan_spec st_press_lps331ap_channels[] = { ...@@ -99,7 +125,7 @@ static const struct iio_chan_spec st_press_lps331ap_channels[] = {
{ {
.type = IIO_TEMP, .type = IIO_TEMP,
.channel2 = IIO_NO_MOD, .channel2 = IIO_NO_MOD,
.address = ST_TEMP_LPS331AP_OUT_L_ADDR, .address = ST_TEMP_1_OUT_L_ADDR,
.scan_index = -1, .scan_index = -1,
.scan_type = { .scan_type = {
.sign = 'u', .sign = 'u',
...@@ -156,8 +182,8 @@ static const struct st_sensors st_press_sensors[] = { ...@@ -156,8 +182,8 @@ static const struct st_sensors st_press_sensors[] = {
.sensors_supported = { .sensors_supported = {
[0] = LPS331AP_PRESS_DEV_NAME, [0] = LPS331AP_PRESS_DEV_NAME,
}, },
.ch = (struct iio_chan_spec *)st_press_lps331ap_channels, .ch = (struct iio_chan_spec *)st_press_1_channels,
.num_ch = ARRAY_SIZE(st_press_lps331ap_channels), .num_ch = ARRAY_SIZE(st_press_1_channels),
.odr = { .odr = {
.addr = ST_PRESS_LPS331AP_ODR_ADDR, .addr = ST_PRESS_LPS331AP_ODR_ADDR,
.mask = ST_PRESS_LPS331AP_ODR_MASK, .mask = ST_PRESS_LPS331AP_ODR_MASK,
...@@ -233,6 +259,53 @@ static const struct st_sensors st_press_sensors[] = { ...@@ -233,6 +259,53 @@ static const struct st_sensors st_press_sensors[] = {
.multi_read_bit = ST_PRESS_LPS001WP_MULTIREAD_BIT, .multi_read_bit = ST_PRESS_LPS001WP_MULTIREAD_BIT,
.bootime = 2, .bootime = 2,
}, },
{
.wai = ST_PRESS_LPS25H_WAI_EXP,
.sensors_supported = {
[0] = LPS25H_PRESS_DEV_NAME,
},
.ch = (struct iio_chan_spec *)st_press_1_channels,
.num_ch = ARRAY_SIZE(st_press_1_channels),
.odr = {
.addr = ST_PRESS_LPS25H_ODR_ADDR,
.mask = ST_PRESS_LPS25H_ODR_MASK,
.odr_avl = {
{ 1, ST_PRESS_LPS25H_ODR_AVL_1HZ_VAL, },
{ 7, ST_PRESS_LPS25H_ODR_AVL_7HZ_VAL, },
{ 13, ST_PRESS_LPS25H_ODR_AVL_13HZ_VAL, },
{ 25, ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL, },
},
},
.pw = {
.addr = ST_PRESS_LPS25H_PW_ADDR,
.mask = ST_PRESS_LPS25H_PW_MASK,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
.fs = {
.addr = ST_PRESS_LPS25H_FS_ADDR,
.mask = ST_PRESS_LPS25H_FS_MASK,
.fs_avl = {
[0] = {
.num = ST_PRESS_FS_AVL_1260MB,
.value = ST_PRESS_LPS25H_FS_AVL_1260_VAL,
.gain = ST_PRESS_LPS25H_FS_AVL_1260_GAIN,
.gain2 = ST_PRESS_LPS25H_FS_AVL_TEMP_GAIN,
},
},
},
.bdu = {
.addr = ST_PRESS_LPS25H_BDU_ADDR,
.mask = ST_PRESS_LPS25H_BDU_MASK,
},
.drdy_irq = {
.addr = ST_PRESS_LPS25H_DRDY_IRQ_ADDR,
.mask_int1 = ST_PRESS_LPS25H_DRDY_IRQ_INT1_MASK,
.mask_int2 = ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK,
},
.multi_read_bit = ST_PRESS_LPS25H_MULTIREAD_BIT,
.bootime = 2,
},
}; };
static int st_press_read_raw(struct iio_dev *indio_dev, static int st_press_read_raw(struct iio_dev *indio_dev,
......
...@@ -50,6 +50,7 @@ static int st_press_i2c_remove(struct i2c_client *client) ...@@ -50,6 +50,7 @@ static int st_press_i2c_remove(struct i2c_client *client)
static const struct i2c_device_id st_press_id_table[] = { static const struct i2c_device_id st_press_id_table[] = {
{ LPS001WP_PRESS_DEV_NAME }, { LPS001WP_PRESS_DEV_NAME },
{ LPS25H_PRESS_DEV_NAME },
{ LPS331AP_PRESS_DEV_NAME }, { LPS331AP_PRESS_DEV_NAME },
{}, {},
}; };
......
...@@ -49,6 +49,7 @@ static int st_press_spi_remove(struct spi_device *spi) ...@@ -49,6 +49,7 @@ static int st_press_spi_remove(struct spi_device *spi)
static const struct spi_device_id st_press_id_table[] = { static const struct spi_device_id st_press_id_table[] = {
{ LPS001WP_PRESS_DEV_NAME }, { LPS001WP_PRESS_DEV_NAME },
{ LPS25H_PRESS_DEV_NAME },
{ LPS331AP_PRESS_DEV_NAME }, { LPS331AP_PRESS_DEV_NAME },
{}, {},
}; };
......
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