iio: imu: inv_mpu6050: add support for IAM-20680HT/HP

IAM-20680HT & HP are 2 variants of IAM-20680 with better specs,
wider temperature range, and a bigger FIFO (4k).

Fully compatible with IAM-20680, FIFO is 512 bytes by default and
with correct register setting we expand it to full 4k.

Signed-off-by: Jean-Baptiste Maneyrol <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Jonathan Cameron <[e-mail]>

drivers/iio/imu/inv_mpu6050/inv_mpu_core.c

···
 		.temp = {INV_ICM20608_TEMP_OFFSET, INV_ICM20608_TEMP_SCALE},
 		.startup_time = {INV_MPU6500_GYRO_STARTUP_TIME, INV_MPU6500_ACCEL_STARTUP_TIME},
 	},
+	{
+		.whoami = INV_IAM20680HP_WHOAMI_VALUE,
+		.name = "IAM20680HP",
+		.reg = &reg_set_6500,
+		.config = &chip_config_6500,
+		.fifo_size = 4 * 1024,
+		.temp = {INV_ICM20608_TEMP_OFFSET, INV_ICM20608_TEMP_SCALE},
+		.startup_time = {INV_MPU6500_GYRO_STARTUP_TIME, INV_MPU6500_ACCEL_STARTUP_TIME},
+	},
+	{
+		.whoami = INV_IAM20680HT_WHOAMI_VALUE,
+		.name = "IAM20680HT",
+		.reg = &reg_set_6500,
+		.config = &chip_config_6500,
+		.fifo_size = 4 * 1024,
+		.temp = {INV_ICM20608_TEMP_OFFSET, INV_ICM20608_TEMP_SCALE},
+		.startup_time = {INV_MPU6500_GYRO_STARTUP_TIME, INV_MPU6500_ACCEL_STARTUP_TIME},
+	},
 };
 
 static int inv_mpu6050_pwr_mgmt_1_write(struct inv_mpu6050_state *st, bool sleep,
···
 		return 0;
 	case INV_ICM20689:
 	case INV_ICM20690:
+	case INV_IAM20680HT:
+	case INV_IAM20680HP:
 		/* set FIFO size to maximum value */
 		val |= INV_ICM20689_BITS_FIFO_SIZE_MAX;
 		break;

drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c

···
 	{"icm20602", INV_ICM20602},
 	{"icm20690", INV_ICM20690},
 	{"iam20680", INV_IAM20680},
+	{"iam20680hp", INV_IAM20680HP},
+	{"iam20680ht", INV_IAM20680HT},
 	{}
 };
 
···
 	{
 		.compatible = "invensense,iam20680",
 		.data = (void *)INV_IAM20680
+	},
+	{
+		.compatible = "invensense,iam20680hp",
+		.data = (void *)INV_IAM20680HP
+	},
+	{
+		.compatible = "invensense,iam20680ht",
+		.data = (void *)INV_IAM20680HT
 	},
 	{ }
 };

drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h

···
 	INV_ICM20602,
 	INV_ICM20690,
 	INV_IAM20680,
+	INV_IAM20680HP,
+	INV_IAM20680HT,
 	INV_NUM_PARTS
 };
 
···
 #define INV_ICM20602_WHOAMI_VALUE		0x12
 #define INV_ICM20690_WHOAMI_VALUE		0x20
 #define INV_IAM20680_WHOAMI_VALUE		0xA9
+#define INV_IAM20680HP_WHOAMI_VALUE		0xF8
+#define INV_IAM20680HT_WHOAMI_VALUE		0xFA
 
 /* scan element definition for generic MPU6xxx devices */
 enum inv_mpu6050_scan {

drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c

···
 	{"icm20602", INV_ICM20602},
 	{"icm20690", INV_ICM20690},
 	{"iam20680", INV_IAM20680},
+	{"iam20680hp", INV_IAM20680HP},
+	{"iam20680ht", INV_IAM20680HT},
 	{}
 };
 
···
 	{
 		.compatible = "invensense,iam20680",
 		.data = (void *)INV_IAM20680
+	},
+	{
+		.compatible = "invensense,iam20680hp",
+		.data = (void *)INV_IAM20680HP
+	},
+	{
+		.compatible = "invensense,iam20680ht",
+		.data = (void *)INV_IAM20680HT
 	},
 	{ }
 };