iio: accel: add support to LIS2DW12

add support to STMicroelectronics LIS2DW12 accelerometer in
st_accel framework

http://www.st.com/resource/en/datasheet/lis2dw12.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
index 0fe521609a3a78ec33d28e0d96a074c1f79c4668..2ed0f60418c09d2d56201dd836bc091fe3542708 100644 (file)
--- a/drivers/iio/accel/st_accel.h
+++ b/drivers/iio/accel/st_accel.h
@@ -32,6 +32,7 @@ enum st_accel_type {
        H3LIS331DL,
        LIS331DL,
        LIS3LV02DL,
+       LIS2DW12,
        ST_ACCEL_MAX,
 };
 
@@ -52,6 +53,7 @@ enum st_accel_type {
 #define LIS2DH12_ACCEL_DEV_NAME                "lis2dh12_accel"
 #define LIS3L02DQ_ACCEL_DEV_NAME       "lis3l02dq"
 #define LNG2DM_ACCEL_DEV_NAME          "lng2dm"
+#define LIS2DW12_ACCEL_DEV_NAME                "lis2dw12"
 
 /**
 * struct st_sensors_platform_data - default accel platform data

diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index a6eac959dfe85228510662be71f92e67fbf233c4..731ec3a4c82bc65acc773133f097dea29100dabe 100644 (file)
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -692,6 +692,85 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
                .multi_read_bit = true,
                .bootime = 2,
        },
+       {
+               .wai = 0x44,
+               .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
+               .sensors_supported = {
+                       [0] = LIS2DW12_ACCEL_DEV_NAME,
+               },
+               .ch = (struct iio_chan_spec *)st_accel_12bit_channels,
+               .odr = {
+                       .addr = 0x20,
+                       .mask = 0xf0,
+                       .odr_avl = {
+                               { .hz = 1, .value = 0x01, },
+                               { .hz = 12, .value = 0x02, },
+                               { .hz = 25, .value = 0x03, },
+                               { .hz = 50, .value = 0x04, },
+                               { .hz = 100, .value = 0x05, },
+                               { .hz = 200, .value = 0x06, },
+                       },
+               },
+               .pw = {
+                       .addr = 0x20,
+                       .mask = 0xf0,
+                       .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+               },
+               .fs = {
+                       .addr = 0x25,
+                       .mask = 0x30,
+                       .fs_avl = {
+                               [0] = {
+                                       .num = ST_ACCEL_FS_AVL_2G,
+                                       .value = 0x00,
+                                       .gain = IIO_G_TO_M_S_2(976),
+                               },
+                               [1] = {
+                                       .num = ST_ACCEL_FS_AVL_4G,
+                                       .value = 0x01,
+                                       .gain = IIO_G_TO_M_S_2(1952),
+                               },
+                               [2] = {
+                                       .num = ST_ACCEL_FS_AVL_8G,
+                                       .value = 0x02,
+                                       .gain = IIO_G_TO_M_S_2(3904),
+                               },
+                               [3] = {
+                                       .num = ST_ACCEL_FS_AVL_16G,
+                                       .value = 0x03,
+                                       .gain = IIO_G_TO_M_S_2(7808),
+                               },
+                       },
+               },
+               .bdu = {
+                       .addr = 0x21,
+                       .mask = 0x08,
+               },
+               .drdy_irq = {
+                       .int1 = {
+                               .addr = 0x23,
+                               .mask = 0x01,
+                       },
+                       .int2 = {
+                               .addr = 0x24,
+                               .mask = 0x01,
+                       },
+                       .addr_ihl = 0x22,
+                       .mask_ihl = 0x08,
+                       .addr_od = 0x22,
+                       .mask_od = 0x20,
+                       .stat_drdy = {
+                               .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+                               .mask = 0x01,
+                       },
+               },
+               .sim = {
+                       .addr = 0x21,
+                       .value = BIT(0),
+               },
+               .multi_read_bit = false,
+               .bootime = 2,
+       },
 };
 
 static int st_accel_read_raw(struct iio_dev *indio_dev,

diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index 18cafb9f2468d8316ec58314112f8abcdca02534..363429b5686c77abd254364015eff7a901c29480 100644 (file)
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -94,6 +94,10 @@ static const struct of_device_id st_accel_of_match[] = {
                .compatible = "st,lng2dm-accel",
                .data = LNG2DM_ACCEL_DEV_NAME,
        },
+       {
+               .compatible = "st,lis2dw12",
+               .data = LIS2DW12_ACCEL_DEV_NAME,
+       },
        {},
 };
 MODULE_DEVICE_TABLE(of, st_accel_of_match);
@@ -129,6 +133,7 @@ static const struct i2c_device_id st_accel_id_table[] = {
        { H3LIS331DL_ACCEL_DEV_NAME, H3LIS331DL },
        { LIS331DL_ACCEL_DEV_NAME, LIS331DL },
        { LIS3LV02DL_ACCEL_DEV_NAME, LIS3LV02DL },
+       { LIS2DW12_ACCEL_DEV_NAME, LIS2DW12 },
        {},
 };
 MODULE_DEVICE_TABLE(i2c, st_accel_id_table);

diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
index 915fa49085f7076b74de72e717e1a6858e504240..7692da49e59f3f2cf68bceb9bc1b54e665753d64 100644 (file)
--- a/drivers/iio/accel/st_accel_spi.c
+++ b/drivers/iio/accel/st_accel_spi.c
@@ -82,6 +82,10 @@ static const struct of_device_id st_accel_of_match[] = {
                .compatible = "st,lis331dl-accel",
                .data = LIS331DL_ACCEL_DEV_NAME,
        },
+       {
+               .compatible = "st,lis2dw12",
+               .data = LIS2DW12_ACCEL_DEV_NAME,
+       },
        {}
 };
 MODULE_DEVICE_TABLE(of, st_accel_of_match);
@@ -133,6 +137,7 @@ static const struct spi_device_id st_accel_id_table[] = {
        { H3LIS331DL_ACCEL_DEV_NAME },
        { LIS331DL_ACCEL_DEV_NAME },
        { LIS3LV02DL_ACCEL_DEV_NAME },
+       { LIS2DW12_ACCEL_DEV_NAME },
        {},
 };
 MODULE_DEVICE_TABLE(spi, st_accel_id_table);