IIO: Add support for L3GD20H gyroscope

It can be used exactly like L3GD20 but it has a different WhoAmI
register value.

Signed-off-by: Robert Dolca <robert.dolca@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

1 files changed, 83 insertions, 0 deletions

diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index f07a2336f7dc..21395f26d227 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -87,6 +87,31 @@
 #define ST_GYRO_2_DRDY_IRQ_INT2_MASK            0x08
 #define ST_GYRO_2_MULTIREAD_BIT                 true
 
+/* CUSTOM VALUES FOR SENSOR 3 */
+#define ST_GYRO_3_WAI_EXP                       0xd7
+#define ST_GYRO_3_ODR_ADDR                      0x20
+#define ST_GYRO_3_ODR_MASK                      0xc0
+#define ST_GYRO_3_ODR_AVL_95HZ_VAL              0x00
+#define ST_GYRO_3_ODR_AVL_190HZ_VAL             0x01
+#define ST_GYRO_3_ODR_AVL_380HZ_VAL             0x02
+#define ST_GYRO_3_ODR_AVL_760HZ_VAL             0x03
+#define ST_GYRO_3_PW_ADDR                       0x20
+#define ST_GYRO_3_PW_MASK                       0x08
+#define ST_GYRO_3_FS_ADDR                       0x23
+#define ST_GYRO_3_FS_MASK                       0x30
+#define ST_GYRO_3_FS_AVL_250_VAL                0x00
+#define ST_GYRO_3_FS_AVL_500_VAL                0x01
+#define ST_GYRO_3_FS_AVL_2000_VAL               0x02
+#define ST_GYRO_3_FS_AVL_250_GAIN               IIO_DEGREE_TO_RAD(8750)
+#define ST_GYRO_3_FS_AVL_500_GAIN               IIO_DEGREE_TO_RAD(17500)
+#define ST_GYRO_3_FS_AVL_2000_GAIN              IIO_DEGREE_TO_RAD(70000)
+#define ST_GYRO_3_BDU_ADDR                      0x23
+#define ST_GYRO_3_BDU_MASK                      0x80
+#define ST_GYRO_3_DRDY_IRQ_ADDR                 0x22
+#define ST_GYRO_3_DRDY_IRQ_INT2_MASK            0x08
+#define ST_GYRO_3_MULTIREAD_BIT                 true
+
+
 static const struct iio_chan_spec st_gyro_16bit_channels[] = {
         ST_SENSORS_LSM_CHANNELS(IIO_ANGL_VEL,
                         BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
@@ -225,6 +250,64 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
                 .multi_read_bit = ST_GYRO_2_MULTIREAD_BIT,
                 .bootime = 2,
         },
+        {
+                .wai = ST_GYRO_3_WAI_EXP,
+                .sensors_supported = {
+                        [0] = L3GD20_GYRO_DEV_NAME,
+                },
+                .ch = (struct iio_chan_spec *)st_gyro_16bit_channels,
+                .odr = {
+                        .addr = ST_GYRO_3_ODR_ADDR,
+                        .mask = ST_GYRO_3_ODR_MASK,
+                        .odr_avl = {
+                                { 95, ST_GYRO_3_ODR_AVL_95HZ_VAL, },
+                                { 190, ST_GYRO_3_ODR_AVL_190HZ_VAL, },
+                                { 380, ST_GYRO_3_ODR_AVL_380HZ_VAL, },
+                                { 760, ST_GYRO_3_ODR_AVL_760HZ_VAL, },
+                        },
+                },
+                .pw = {
+                        .addr = ST_GYRO_3_PW_ADDR,
+                        .mask = ST_GYRO_3_PW_MASK,
+                        .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
+                        .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+                },
+                .enable_axis = {
+                        .addr = ST_SENSORS_DEFAULT_AXIS_ADDR,
+                        .mask = ST_SENSORS_DEFAULT_AXIS_MASK,
+                },
+                .fs = {
+                        .addr = ST_GYRO_3_FS_ADDR,
+                        .mask = ST_GYRO_3_FS_MASK,
+                        .fs_avl = {
+                                [0] = {
+                                        .num = ST_GYRO_FS_AVL_250DPS,
+                                        .value = ST_GYRO_3_FS_AVL_250_VAL,
+                                        .gain = ST_GYRO_3_FS_AVL_250_GAIN,
+                                },
+                                [1] = {
+                                        .num = ST_GYRO_FS_AVL_500DPS,
+                                        .value = ST_GYRO_3_FS_AVL_500_VAL,
+                                        .gain = ST_GYRO_3_FS_AVL_500_GAIN,
+                                },
+                                [2] = {
+                                        .num = ST_GYRO_FS_AVL_2000DPS,
+                                        .value = ST_GYRO_3_FS_AVL_2000_VAL,
+                                        .gain = ST_GYRO_3_FS_AVL_2000_GAIN,
+                                },
+                        },
+                },
+                .bdu = {
+                        .addr = ST_GYRO_3_BDU_ADDR,
+                        .mask = ST_GYRO_3_BDU_MASK,
+                },
+                .drdy_irq = {
+                        .addr = ST_GYRO_3_DRDY_IRQ_ADDR,
+                        .mask_int2 = ST_GYRO_3_DRDY_IRQ_INT2_MASK,
+                },
+                .multi_read_bit = ST_GYRO_3_MULTIREAD_BIT,
+                .bootime = 2,
+        },
 };
 
 static int st_gyro_read_raw(struct iio_dev *indio_dev,