[PATCH 5/5] iio: inv_mpu6050: Add explicit support for MPU9150

[Crestez Dan Leonard]

This device is a package containing a MPU6050-like sensor and an AK8975
magnetometer. The magnetometer component is supported by the existing
ak8975 driver.

This patch also rephrases the Kconfig descriptions.

Signed-off-by: Crestez Dan Leonard <leonard.cres...@intel.com>
---
 drivers/iio/imu/inv_mpu6050/Kconfig        | 10 ++++------
 drivers/iio/imu/inv_mpu6050/inv_mpu_core.c |  6 ++++++
 drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c  |  1 +
 drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h  |  2 ++
 drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c  |  1 +
 5 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/imu/inv_mpu6050/Kconfig 
b/drivers/iio/imu/inv_mpu6050/Kconfig
index a7f557a..c05d474 100644
--- a/drivers/iio/imu/inv_mpu6050/Kconfig
+++ b/drivers/iio/imu/inv_mpu6050/Kconfig
@@ -14,10 +14,8 @@ config INV_MPU6050_I2C
        select I2C_MUX
        select REGMAP_I2C
        help
-         This driver supports the Invensense MPU6050 devices.
-         This driver can also support MPU6500 in MPU6050 compatibility mode
-         and also in MPU6500 mode with some limitations.
-         It is a gyroscope/accelerometer combo device.
+         This driver supports the Invensense MPU6050/6500/9150 motion tracking
+         devices over I2C.
          This driver can be built as a module. The module will be called
          inv-mpu6050-i2c.
 
@@ -27,7 +25,7 @@ config INV_MPU6050_SPI
        select INV_MPU6050_IIO
        select REGMAP_SPI
        help
-         This driver supports the Invensense MPU6050 devices.
-         It is a gyroscope/accelerometer combo device.
+         This driver supports the Invensense MPU6000/6500/9150 motion tracking
+         devices over SPI.
          This driver can be built as a module. The module will be called
          inv-mpu6050-spi.
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c 
b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 273b7fa7..3a82a49 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -108,6 +108,12 @@ static const struct inv_mpu6050_hw hw_info[] = {
                .reg = &reg_set_6050,
                .config = &chip_config_6050,
        },
+       {
+               .whoami = INV_MPU9150_WHOAMI_VALUE,
+               .name = "MPU9150",
+               .reg = &reg_set_6050,
+               .config = &chip_config_6050,
+       },
 };
 
 int inv_mpu6050_switch_engine(struct inv_mpu6050_state *st, bool en, u32 mask)
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c 
b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c
index bb1a7b1..1a424a6 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c
@@ -202,6 +202,7 @@ static int inv_mpu_remove(struct i2c_client *client)
 static const struct i2c_device_id inv_mpu_id[] = {
        {"mpu6050", INV_MPU6050},
        {"mpu6500", INV_MPU6500},
+       {"mpu9150", INV_MPU9150},
        {}
 };
 
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h 
b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
index 564cabd..38d6a09 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
@@ -68,6 +68,7 @@ enum inv_devices {
        INV_MPU6050,
        INV_MPU6500,
        INV_MPU6000,
+       INV_MPU9150,
        INV_NUM_PARTS
 };
 
@@ -220,6 +221,7 @@ struct inv_mpu6050_state {
 #define INV_MPU6000_WHOAMI_VALUE               0x68
 #define INV_MPU6050_WHOAMI_VALUE               0x68
 #define INV_MPU6500_WHOAMI_VALUE               0x70
+#define INV_MPU9150_WHOAMI_VALUE               0x68
 
 /* scan element definition */
 enum inv_mpu6050_scan {
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c 
b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c
index a0f8df2..190a4a5 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c
@@ -81,6 +81,7 @@ static int inv_mpu_remove(struct spi_device *spi)
 static const struct spi_device_id inv_mpu_id[] = {
        {"mpu6000", INV_MPU6000},
        {"mpu6500", INV_MPU6500},
+       {"mpu9150", INV_MPU9150},
        {}
 };
 
-- 
2.5.5