iio: gyro: st_gyro: fix L3GD20H support

Add proper support for L3GD20H gyroscope sensor. In particular:
- use L3GD20H as device name instead of L3GD20
- fix available full scales
- fix available sample frequencies

Note that the original patch listed first below introduced broken support for
this part.  The second patch drops the support as it didn't work.

This new patch brings in working support.

Fixes: 9444a300c2be (IIO: Add support for L3GD20H gyroscope)
Fixes: a0657716416f ("iio:gyro: bug on L3GD20H gyroscope support")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/gyro/st_gyro.h

@@ -19,6 +19,7 @@
 #define LSM330DL_GYRO_DEV_NAME		"lsm330dl_gyro"
 #define LSM330DLC_GYRO_DEV_NAME		"lsm330dlc_gyro"
 #define L3GD20_GYRO_DEV_NAME		"l3gd20"
+#define L3GD20H_GYRO_DEV_NAME		"l3gd20h"
 #define L3G4IS_GYRO_DEV_NAME		"l3g4is_ui"
 #define LSM330_GYRO_DEV_NAME		"lsm330_gyro"
 #define LSM9DS0_GYRO_DEV_NAME		"lsm9ds0_gyro"

drivers/iio/gyro/st_gyro_core.c

@@ -35,6 +35,7 @@
 #define ST_GYRO_DEFAULT_OUT_Z_L_ADDR		0x2c
 
 /* FULLSCALE */
+#define ST_GYRO_FS_AVL_245DPS			245
 #define ST_GYRO_FS_AVL_250DPS			250
 #define ST_GYRO_FS_AVL_500DPS			500
 #define ST_GYRO_FS_AVL_2000DPS			2000
@@ -196,17 +197,17 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
 		.wai = 0xd7,
 		.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
 		.sensors_supported = {
-			[0] = L3GD20_GYRO_DEV_NAME,
+			[0] = L3GD20H_GYRO_DEV_NAME,
 		},
 		.ch = (struct iio_chan_spec *)st_gyro_16bit_channels,
 		.odr = {
 			.addr = 0x20,
 			.mask = 0xc0,
 			.odr_avl = {
-				{ .hz = 95, .value = 0x00, },
-				{ .hz = 190, .value = 0x01, },
-				{ .hz = 380, .value = 0x02, },
-				{ .hz = 760, .value = 0x03, },
+				{ .hz = 100, .value = 0x00, },
+				{ .hz = 200, .value = 0x01, },
+				{ .hz = 400, .value = 0x02, },
+				{ .hz = 800, .value = 0x03, },
 			},
 		},
 		.pw = {
@@ -224,7 +225,7 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
 			.mask = 0x30,
 			.fs_avl = {
 				[0] = {
-					.num = ST_GYRO_FS_AVL_250DPS,
+					.num = ST_GYRO_FS_AVL_245DPS,
 					.value = 0x00,
 					.gain = IIO_DEGREE_TO_RAD(8750),
 				},

drivers/iio/gyro/st_gyro_i2c.c

@@ -40,6 +40,10 @@ static const struct of_device_id st_gyro_of_match[] = {
 		.compatible = "st,l3gd20-gyro",
 		.data = L3GD20_GYRO_DEV_NAME,
 	},
+	{
+		.compatible = "st,l3gd20h-gyro",
+		.data = L3GD20H_GYRO_DEV_NAME,
+	},
 	{
 		.compatible = "st,l3g4is-gyro",
 		.data = L3G4IS_GYRO_DEV_NAME,
@@ -95,6 +99,7 @@ static const struct i2c_device_id st_gyro_id_table[] = {
 	{ LSM330DL_GYRO_DEV_NAME },
 	{ LSM330DLC_GYRO_DEV_NAME },
 	{ L3GD20_GYRO_DEV_NAME },
+	{ L3GD20H_GYRO_DEV_NAME },
 	{ L3G4IS_GYRO_DEV_NAME },
 	{ LSM330_GYRO_DEV_NAME },
 	{ LSM9DS0_GYRO_DEV_NAME },

drivers/iio/gyro/st_gyro_spi.c

@@ -52,6 +52,7 @@ static const struct spi_device_id st_gyro_id_table[] = {
 	{ LSM330DL_GYRO_DEV_NAME },
 	{ LSM330DLC_GYRO_DEV_NAME },
 	{ L3GD20_GYRO_DEV_NAME },
+	{ L3GD20H_GYRO_DEV_NAME },
 	{ L3G4IS_GYRO_DEV_NAME },
 	{ LSM330_GYRO_DEV_NAME },
 	{ LSM9DS0_GYRO_DEV_NAME },