iio: imu: st_lsm6dsx: add support to LSM6DST

Add support to STM LSM6DST (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/lsm6dst.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/835127b76ef5ad05aa2aac58298aee5f3073fb71.1601985763.git.lorenzo@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/imu/st_lsm6dsx/Kconfig b/drivers/iio/imu/st_lsm6dsx/Kconfig
index 28f59d0..76c7abb 100644 (file)
--- a/drivers/iio/imu/st_lsm6dsx/Kconfig
+++ b/drivers/iio/imu/st_lsm6dsx/Kconfig
@@ -12,8 +12,8 @@ config IIO_ST_LSM6DSX
          Say yes here to build support for STMicroelectronics LSM6DSx imu
          sensor. Supported devices: lsm6ds3, lsm6ds3h, lsm6dsl, lsm6dsm,
          ism330dlc, lsm6dso, lsm6dsox, asm330lhh, lsm6dsr, lsm6ds3tr-c,
-         ism330dhcx, lsm6dsrx, lsm6ds0 and the accelerometer/gyroscope
-         of lsm9ds1.
+         ism330dhcx, lsm6dsrx, lsm6ds0, the accelerometer/gyroscope
+         of lsm9ds1 and lsm6dst.
 
          To compile this driver as a module, choose M here: the module
          will be called st_lsm6dsx.

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
index 9275346..1f31657 100644 (file)
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
@@ -28,6 +28,7 @@
 #define ST_LSM9DS1_DEV_NAME    "lsm9ds1-imu"
 #define ST_LSM6DS0_DEV_NAME    "lsm6ds0"
 #define ST_LSM6DSRX_DEV_NAME   "lsm6dsrx"
+#define ST_LSM6DST_DEV_NAME    "lsm6dst"
 
 enum st_lsm6dsx_hw_id {
        ST_LSM6DS3_ID,
@@ -44,6 +45,7 @@ enum st_lsm6dsx_hw_id {
        ST_LSM9DS1_ID,
        ST_LSM6DS0_ID,
        ST_LSM6DSRX_ID,
+       ST_LSM6DST_ID,
        ST_LSM6DSX_MAX_ID,
 };
 

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
index 12ed0a2..4992350 100644 (file)
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
@@ -14,7 +14,7 @@
  * (e.g. Gx, Gy, Gz, Ax, Ay, Az), then data are repeated depending on the
  * value of the decimation factor and ODR set for each FIFO data set.
  *
- * LSM6DSO/LSM6DSOX/ASM330LHH/LSM6DSR/LSM6DSRX/ISM330DHCX:
+ * LSM6DSO/LSM6DSOX/ASM330LHH/LSM6DSR/LSM6DSRX/ISM330DHCX/LSM6DST:
  * The FIFO buffer can be configured to store data from gyroscope and
  * accelerometer. Each sample is queued with a tag (1B) indicating data
  * source (gyroscope, accelerometer, hw timer).

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index 42f4856..5e584c6 100644 (file)
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -26,7 +26,7 @@
  *   - Gyroscope supported full-scale [dps]: +-125/+-245/+-500/+-1000/+-2000
  *   - FIFO size: 4KB
  *
- * - LSM6DSO/LSM6DSOX/ASM330LHH/LSM6DSR/ISM330DHCX:
+ * - LSM6DSO/LSM6DSOX/ASM330LHH/LSM6DSR/ISM330DHCX/LSM6DST:
  *   - Accelerometer/Gyroscope supported ODR [Hz]: 13, 26, 52, 104, 208, 416,
  *     833
  *   - Accelerometer supported full-scale [g]: +-2/+-4/+-8/+-16
@@ -1334,6 +1334,211 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
                        .wakeup_src_x_mask = BIT(2),
                }
        },
+       {
+               .wai = 0x6d,
+               .reset = {
+                       .addr = 0x12,
+                       .mask = BIT(0),
+               },
+               .boot = {
+                       .addr = 0x12,
+                       .mask = BIT(7),
+               },
+               .bdu = {
+                       .addr = 0x12,
+                       .mask = BIT(6),
+               },
+               .max_fifo_size = 512,
+               .id = {
+                       {
+                               .hw_id = ST_LSM6DST_ID,
+                               .name = ST_LSM6DST_DEV_NAME,
+                       },
+               },
+               .channels = {
+                       [ST_LSM6DSX_ID_ACC] = {
+                               .chan = st_lsm6dsx_acc_channels,
+                               .len = ARRAY_SIZE(st_lsm6dsx_acc_channels),
+                       },
+                       [ST_LSM6DSX_ID_GYRO] = {
+                               .chan = st_lsm6dsx_gyro_channels,
+                               .len = ARRAY_SIZE(st_lsm6dsx_gyro_channels),
+                       },
+               },
+               .drdy_mask = {
+                       .addr = 0x13,
+                       .mask = BIT(3),
+               },
+               .odr_table = {
+                       [ST_LSM6DSX_ID_ACC] = {
+                               .reg = {
+                                       .addr = 0x10,
+                                       .mask = GENMASK(7, 4),
+                               },
+                               .odr_avl[0] = {  12500, 0x01 },
+                               .odr_avl[1] = {  26000, 0x02 },
+                               .odr_avl[2] = {  52000, 0x03 },
+                               .odr_avl[3] = { 104000, 0x04 },
+                               .odr_avl[4] = { 208000, 0x05 },
+                               .odr_avl[5] = { 416000, 0x06 },
+                               .odr_avl[6] = { 833000, 0x07 },
+                               .odr_len = 7,
+                       },
+                       [ST_LSM6DSX_ID_GYRO] = {
+                               .reg = {
+                                       .addr = 0x11,
+                                       .mask = GENMASK(7, 4),
+                               },
+                               .odr_avl[0] = {  12500, 0x01 },
+                               .odr_avl[1] = {  26000, 0x02 },
+                               .odr_avl[2] = {  52000, 0x03 },
+                               .odr_avl[3] = { 104000, 0x04 },
+                               .odr_avl[4] = { 208000, 0x05 },
+                               .odr_avl[5] = { 416000, 0x06 },
+                               .odr_avl[6] = { 833000, 0x07 },
+                               .odr_len = 7,
+                       },
+               },
+               .fs_table = {
+                       [ST_LSM6DSX_ID_ACC] = {
+                               .reg = {
+                                       .addr = 0x10,
+                                       .mask = GENMASK(3, 2),
+                               },
+                               .fs_avl[0] = {  IIO_G_TO_M_S_2(61000), 0x0 },
+                               .fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 },
+                               .fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 },
+                               .fs_avl[3] = { IIO_G_TO_M_S_2(488000), 0x1 },
+                               .fs_len = 4,
+                       },
+                       [ST_LSM6DSX_ID_GYRO] = {
+                               .reg = {
+                                       .addr = 0x11,
+                                       .mask = GENMASK(3, 2),
+                               },
+                               .fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750000), 0x0 },
+                               .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 },
+                               .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000000), 0x2 },
+                               .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000000), 0x3 },
+                               .fs_len = 4,
+                       },
+               },
+               .irq_config = {
+                       .irq1 = {
+                               .addr = 0x0d,
+                               .mask = BIT(3),
+                       },
+                       .irq2 = {
+                               .addr = 0x0e,
+                               .mask = BIT(3),
+                       },
+                       .lir = {
+                               .addr = 0x56,
+                               .mask = BIT(0),
+                       },
+                       .clear_on_read = {
+                               .addr = 0x56,
+                               .mask = BIT(6),
+                       },
+                       .irq1_func = {
+                               .addr = 0x5e,
+                               .mask = BIT(5),
+                       },
+                       .irq2_func = {
+                               .addr = 0x5f,
+                               .mask = BIT(5),
+                       },
+                       .hla = {
+                               .addr = 0x12,
+                               .mask = BIT(5),
+                       },
+                       .od = {
+                               .addr = 0x12,
+                               .mask = BIT(4),
+                       },
+               },
+               .batch = {
+                       [ST_LSM6DSX_ID_ACC] = {
+                               .addr = 0x09,
+                               .mask = GENMASK(3, 0),
+                       },
+                       [ST_LSM6DSX_ID_GYRO] = {
+                               .addr = 0x09,
+                               .mask = GENMASK(7, 4),
+                       },
+               },
+               .fifo_ops = {
+                       .update_fifo = st_lsm6dsx_update_fifo,
+                       .read_fifo = st_lsm6dsx_read_tagged_fifo,
+                       .fifo_th = {
+                               .addr = 0x07,
+                               .mask = GENMASK(8, 0),
+                       },
+                       .fifo_diff = {
+                               .addr = 0x3a,
+                               .mask = GENMASK(9, 0),
+                       },
+                       .th_wl = 1,
+               },
+               .ts_settings = {
+                       .timer_en = {
+                               .addr = 0x19,
+                               .mask = BIT(5),
+                       },
+                       .decimator = {
+                               .addr = 0x0a,
+                               .mask = GENMASK(7, 6),
+                       },
+                       .freq_fine = 0x63,
+               },
+               .shub_settings = {
+                       .page_mux = {
+                               .addr = 0x01,
+                               .mask = BIT(6),
+                       },
+                       .master_en = {
+                               .sec_page = true,
+                               .addr = 0x14,
+                               .mask = BIT(2),
+                       },
+                       .pullup_en = {
+                               .sec_page = true,
+                               .addr = 0x14,
+                               .mask = BIT(3),
+                       },
+                       .aux_sens = {
+                               .addr = 0x14,
+                               .mask = GENMASK(1, 0),
+                       },
+                       .wr_once = {
+                               .addr = 0x14,
+                               .mask = BIT(6),
+                       },
+                       .num_ext_dev = 3,
+                       .shub_out = {
+                               .sec_page = true,
+                               .addr = 0x02,
+                       },
+                       .slv0_addr = 0x15,
+                       .dw_slv0_addr = 0x21,
+                       .batch_en = BIT(3),
+               },
+               .event_settings = {
+                       .enable_reg = {
+                               .addr = 0x58,
+                               .mask = BIT(7),
+                       },
+                       .wakeup_reg = {
+                               .addr = 0x5b,
+                               .mask = GENMASK(5, 0),
+                       },
+                       .wakeup_src_reg = 0x1b,
+                       .wakeup_src_status_mask = BIT(3),
+                       .wakeup_src_z_mask = BIT(0),
+                       .wakeup_src_y_mask = BIT(1),
+                       .wakeup_src_x_mask = BIT(2),
+               },
+       },
 };
 
 int st_lsm6dsx_set_page(struct st_lsm6dsx_hw *hw, bool enable)

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c
index 0fb3213..e0f945d 100644 (file)
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c
@@ -94,6 +94,10 @@ static const struct of_device_id st_lsm6dsx_i2c_of_match[] = {
                .compatible = "st,lsm6dsrx",
                .data = (void *)ST_LSM6DSRX_ID,
        },
+       {
+               .compatible = "st,lsm6dst",
+               .data = (void *)ST_LSM6DST_ID,
+       },
        {},
 };
 MODULE_DEVICE_TABLE(of, st_lsm6dsx_i2c_of_match);
@@ -113,6 +117,7 @@ static const struct i2c_device_id st_lsm6dsx_i2c_id_table[] = {
        { ST_LSM9DS1_DEV_NAME, ST_LSM9DS1_ID },
        { ST_LSM6DS0_DEV_NAME, ST_LSM6DS0_ID },
        { ST_LSM6DSRX_DEV_NAME, ST_LSM6DSRX_ID },
+       { ST_LSM6DST_DEV_NAME, ST_LSM6DST_ID },
        {},
 };
 MODULE_DEVICE_TABLE(i2c, st_lsm6dsx_i2c_id_table);

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c
index eb1086e..c57895b 100644 (file)
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c
@@ -94,6 +94,10 @@ static const struct of_device_id st_lsm6dsx_spi_of_match[] = {
                .compatible = "st,lsm6dsrx",
                .data = (void *)ST_LSM6DSRX_ID,
        },
+       {
+               .compatible = "st,lsm6dst",
+               .data = (void *)ST_LSM6DST_ID,
+       },
        {},
 };
 MODULE_DEVICE_TABLE(of, st_lsm6dsx_spi_of_match);
@@ -113,6 +117,7 @@ static const struct spi_device_id st_lsm6dsx_spi_id_table[] = {
        { ST_LSM9DS1_DEV_NAME, ST_LSM9DS1_ID },
        { ST_LSM6DS0_DEV_NAME, ST_LSM6DS0_ID },
        { ST_LSM6DSRX_DEV_NAME, ST_LSM6DSRX_ID },
+       { ST_LSM6DST_DEV_NAME, ST_LSM6DST_ID },
        {},
 };
 MODULE_DEVICE_TABLE(spi, st_lsm6dsx_spi_id_table);