[PATCH 28/38] iio: pressure: st: Add support for new LPS001WP pressure sensor

Jonathan Cameron
2013-09-14T17:26:48Z

On 09/10/13 13:49, Lee Jones wrote:
> Here we use existing practices to introduce support for another
> pressure/temperature sensor, the LPS001WP.
>
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Looks fine to me, will pick this up when the precursors are all sorted.
> ---
> drivers/iio/pressure/st_pressure.h | 1 +
> drivers/iio/pressure/st_pressure_core.c | 84 +++++++++++++++++++++++++++++++++
> drivers/iio/pressure/st_pressure_i2c.c | 1 +
> 3 files changed, 86 insertions(+)
>
> diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h
> index f1bebce..36b1cc6 100644
> --- a/drivers/iio/pressure/st_pressure.h
> +++ b/drivers/iio/pressure/st_pressure.h
> @@ -15,6 +15,7 @@
> #include <linux/iio/common/st_sensors.h>
>
> #define LPS331AP_PRESS_DEV_NAME "lps331ap_press"
> +#define LPS001WP_PRESS_DEV_NAME "lps001wp_press"
>
> /**
> * struct st_sensors_platform_data - default press platform data
> diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
> index 34b3fb1..b42614a 100644
> --- a/drivers/iio/pressure/st_pressure_core.c
> +++ b/drivers/iio/pressure/st_pressure_core.c
> @@ -64,6 +64,21 @@
> #define ST_PRESS_LPS331AP_OUT_XL_ADDR 0x28
> #define ST_TEMP_LPS331AP_OUT_L_ADDR 0x2b
>
> +/* CUSTOM VALUES FOR LPS001WP SENSOR */
> +#define ST_PRESS_LPS001WP_WAI_EXP 0xba
> +#define ST_PRESS_LPS001WP_ODR_ADDR 0x20
> +#define ST_PRESS_LPS001WP_ODR_MASK 0x30
> +#define ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL 0x01
> +#define ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL 0x02
> +#define ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL 0x03
> +#define ST_PRESS_LPS001WP_PW_ADDR 0x20
> +#define ST_PRESS_LPS001WP_PW_MASK 0x40
> +#define ST_PRESS_LPS001WP_BDU_ADDR 0x20
> +#define ST_PRESS_LPS001WP_BDU_MASK 0x04
> +#define ST_PRESS_LPS001WP_MULTIREAD_BIT true
> +#define ST_PRESS_LPS001WP_OUT_L_ADDR 0x28
> +#define ST_TEMP_LPS001WP_OUT_L_ADDR 0x2a
> +
> static const struct iio_chan_spec st_press_lps331ap_channels[] = {
> {
> .type = IIO_PRESSURE,
> @@ -100,6 +115,40 @@ static const struct iio_chan_spec st_press_lps331ap_channels[] = {
> IIO_CHAN_SOFT_TIMESTAMP(1)
> };
>
> +static const struct iio_chan_spec st_press_lps001wp_channels[] = {
> + {
> + .type = IIO_PRESSURE,
> + .channel2 = IIO_NO_MOD,
> + .address = ST_PRESS_LPS001WP_OUT_L_ADDR,
> + .scan_index = ST_SENSORS_SCAN_X,
> + .scan_type = {
> + .sign = 'u',
> + .realbits = 16,
> + .storagebits = 16,
> + .endianness = IIO_LE,
> + },
> + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
> + .modified = 0,
> + },
> + {
> + .type = IIO_TEMP,
> + .channel2 = IIO_NO_MOD,
> + .address = ST_TEMP_LPS001WP_OUT_L_ADDR,
> + .scan_index = -1,
> + .scan_type = {
> + .sign = 'u',
> + .realbits = 16,
> + .storagebits = 16,
> + .endianness = IIO_LE,
> + },
> + .info_mask_separate =
> + BIT(IIO_CHAN_INFO_RAW) |
> + BIT(IIO_CHAN_INFO_OFFSET),
> + .modified = 0,
> + },
> + IIO_CHAN_SOFT_TIMESTAMP(1)
> +};
> +
> static const struct st_sensors st_press_sensors[] = {
> {
> .wai = ST_PRESS_LPS331AP_WAI_EXP,
> @@ -148,6 +197,41 @@ static const struct st_sensors st_press_sensors[] = {
> .multi_read_bit = ST_PRESS_LPS331AP_MULTIREAD_BIT,
> .bootime = 2,
> },
> + {
> + .wai = ST_PRESS_LPS001WP_WAI_EXP,
> + .sensors_supported = {
> + [0] = LPS001WP_PRESS_DEV_NAME,
> + },
> + .ch = (struct iio_chan_spec *)st_press_lps001wp_channels,
> + .num_ch = ARRAY_SIZE(st_press_lps001wp_channels),
> + .odr = {
> + .addr = ST_PRESS_LPS001WP_ODR_ADDR,
> + .mask = ST_PRESS_LPS001WP_ODR_MASK,
> + .odr_avl = {
> + { 1, ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL, },
> + { 7, ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL, },
> + { 13, ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL, },
> + },
> + },
> + .pw = {
> + .addr = ST_PRESS_LPS001WP_PW_ADDR,
> + .mask = ST_PRESS_LPS001WP_PW_MASK,
> + .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
> + .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
> + },
> + .fs = {
> + .addr = 0,
> + },
> + .bdu = {
> + .addr = ST_PRESS_LPS001WP_BDU_ADDR,
> + .mask = ST_PRESS_LPS001WP_BDU_MASK,
> + },
> + .drdy_irq = {
> + .addr = 0,
> + },
> + .multi_read_bit = ST_PRESS_LPS001WP_MULTIREAD_BIT,
> + .bootime = 2,
> + },
> };
>
> static int st_press_read_raw(struct iio_dev *indio_dev,
> diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c
> index 08aac5e..ada5cbd 100644
> --- a/drivers/iio/pressure/st_pressure_i2c.c
> +++ b/drivers/iio/pressure/st_pressure_i2c.c
> @@ -50,6 +50,7 @@ static int st_press_i2c_remove(struct i2c_client *client)
>
> static const struct i2c_device_id st_press_id_table[] = {
> { LPS331AP_PRESS_DEV_NAME },
> + { LPS001WP_PRESS_DEV_NAME },
> {},
> };
> MODULE_DEVICE_TABLE(i2c, st_press_id_table);
>