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

From: [email-masked] (Jonathan Cameron)
Date: Sat, 14 Sep 2013 18:26:48 +0100

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 <[email-masked]>
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);
>