The LIS2DS12 accelerometer by STMicroelectronics is mostly compatible
with the LIS2DE12 variant, except the WhoAmI value (0x43).
Define sensor settings for LIS2DS12, and add support in the I2C
driver.
Signed-off-by: Kaustabh Chakraborty <kauschluss@xxxxxxxxxxx>
---
drivers/iio/accel/st_accel.h | 1 +
drivers/iio/accel/st_accel_core.c | 76 +++++++++++++++++++++++++++++++
drivers/iio/accel/st_accel_i2c.c | 5 ++
3 files changed, 82 insertions(+)
diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
index e7525615712b..2659f536cef6 100644
--- a/drivers/iio/accel/st_accel.h
+++ b/drivers/iio/accel/st_accel.h
@@ -35,6 +35,7 @@
#define LIS3DHH_ACCEL_DEV_NAME "lis3dhh"
#define LIS3DE_ACCEL_DEV_NAME "lis3de"
#define LIS2DE12_ACCEL_DEV_NAME "lis2de12"
+#define LIS2DS12_ACCEL_DEV_NAME "lis2ds12"
#define LIS2HH12_ACCEL_DEV_NAME "lis2hh12"
#define LIS302DL_ACCEL_DEV_NAME "lis302dl"
#define LSM303C_ACCEL_DEV_NAME "lsm303c_accel"
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index d2104e14e255..8552faea1913 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -925,6 +925,82 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.multi_read_bit = true,
.bootime = 2,
},
+ {
+ .wai = 0x43,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
+ .sensors_supported = {
+ [0] = LIS2DS12_ACCEL_DEV_NAME,
+ },
+ .ch = (struct iio_chan_spec *)st_accel_8bit_channels,
+ .odr = {
+ .addr = 0x20,
+ .mask = 0xf0,
+ .odr_avl = {
+ { .hz = 1, .value = 0x01, },
+ { .hz = 10, .value = 0x02, },
+ { .hz = 25, .value = 0x03, },
+ { .hz = 50, .value = 0x04, },
+ { .hz = 100, .value = 0x05, },
+ { .hz = 200, .value = 0x06, },
+ { .hz = 400, .value = 0x07, },
+ { .hz = 1620, .value = 0x08, },
+ { .hz = 5376, .value = 0x09, },
+ },
+ },
+ .pw = {
+ .addr = 0x20,
+ .mask = 0xf0,
+ .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+ },
+ .enable_axis = {
+ .addr = ST_SENSORS_DEFAULT_AXIS_ADDR,
+ .mask = ST_SENSORS_DEFAULT_AXIS_MASK,
+ },
+ .fs = {
+ .addr = 0x23,
+ .mask = 0x30,
+ .fs_avl = {
+ [0] = {
+ .num = ST_ACCEL_FS_AVL_2G,
+ .value = 0x00,
+ .gain = IIO_G_TO_M_S_2(15600),
+ },
+ [1] = {
+ .num = ST_ACCEL_FS_AVL_4G,
+ .value = 0x01,
+ .gain = IIO_G_TO_M_S_2(31200),
+ },
+ [2] = {
+ .num = ST_ACCEL_FS_AVL_8G,
+ .value = 0x02,
+ .gain = IIO_G_TO_M_S_2(62500),
+ },
+ [3] = {
+ .num = ST_ACCEL_FS_AVL_16G,
+ .value = 0x03,
+ .gain = IIO_G_TO_M_S_2(187500),
+ },
+ },
+ },
+ .drdy_irq = {
+ .int1 = {
+ .addr = 0x22,
+ .mask = 0x10,
+ },
+ .addr_ihl = 0x25,
+ .mask_ihl = 0x02,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
+ },
+ .sim = {
+ .addr = 0x23,
+ .value = BIT(0),
+ },
+ .multi_read_bit = true,
+ .bootime = 2,
+ },
{
.wai = 0x41,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index fd3749871121..329a4d6fb2ec 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -102,6 +102,10 @@ static const struct of_device_id st_accel_of_match[] = {
.compatible = "st,lis2de12",
.data = LIS2DE12_ACCEL_DEV_NAME,
},
+ {
+ .compatible = "st,lis2ds12",
+ .data = LIS2DS12_ACCEL_DEV_NAME,
+ },
{
.compatible = "st,lis2hh12",
.data = LIS2HH12_ACCEL_DEV_NAME,
@@ -154,6 +158,7 @@ static const struct i2c_device_id st_accel_id_table[] = {
{ LIS2DW12_ACCEL_DEV_NAME },
{ LIS3DE_ACCEL_DEV_NAME },
{ LIS2DE12_ACCEL_DEV_NAME },
+ { LIS2DS12_ACCEL_DEV_NAME },
{ LIS2HH12_ACCEL_DEV_NAME },
{ LIS302DL_ACCEL_DEV_NAME },
{ LSM303C_ACCEL_DEV_NAME },
--
2.45.1
