linux-kernel - Re: [PATCH 5/5] iio: inv_mpu6050: Add explicit support for MPU9150

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Date:	Sun, 24 Apr 2016 12:16:19 +0100
From:	Jonathan Cameron <jic23@...nel.org>
To:	Crestez Dan Leonard <leonard.crestez@...el.com>,
	linux-iio@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Hartmut Knaack <knaack.h@....de>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Peter Meerwald-Stadler <pmeerw@...erw.net>,
	Daniel Baluta <daniel.baluta@...el.com>,
	Ge Gao <ggao@...ensense.com>
Subject: Re: [PATCH 5/5] iio: inv_mpu6050: Add explicit support for MPU9150

On 20/04/16 14:15, Crestez Dan Leonard wrote:
> 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.crestez@...el.com>
Looks good.  Will just wait for Ge to hopefully have time to take a look
at the whole series.  For future reference, it's always worth making sure
you have cc'd the original author of a driver unless you know someone
else is definitely maintaining it.

Ge was reply to emails recently so I guess he is still very much active!

Jonathan
> ---
>  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},
>  	{}
>  };
>  
>