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Commit fd64df16 authored by Adriana Reus's avatar Adriana Reus Committed by Jonathan Cameron
Browse files

iio: imu: inv_mpu6050: Add SPI support for MPU6000 



The only difference between the MPU6000 and the
MPU6050 is that the first also supports SPI.
Add SPI driver for this chip.

Signed-off-by: default avatarAdriana Reus <adriana.reus@intel.com>
Reviewed-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent b3eea8da

drivers/iio/imu/inv_mpu6050/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -20,3 +20,14 @@ config INV_MPU6050_I2C 
	  It is a gyroscope/accelerometer combo device.

	  This driver can be built as a module. The module will be called

	  inv-mpu6050-i2c.



config INV_MPU6050_SPI

	tristate "Invensense MPU6050 devices (SPI)"

	depends on SPI_MASTER

	select INV_MPU6050_IIO

	select REGMAP_SPI

	help

	  This driver supports the Invensense MPU6050 devices.

	  It is a gyroscope/accelerometer combo device.

	  This driver can be built as a module. The module will be called

	  inv-mpu6050-spi.

drivers/iio/imu/inv_mpu6050/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -7,3 +7,6 @@ inv-mpu6050-objs := inv_mpu_core.o inv_mpu_ring.o inv_mpu_trigger.o 


obj-$(CONFIG_INV_MPU6050_I2C) += inv-mpu6050-i2c.o

inv-mpu6050-i2c-objs := inv_mpu_i2c.o inv_mpu_acpi.o



obj-$(CONFIG_INV_MPU6050_SPI) += inv-mpu6050-spi.o

inv-mpu6050-spi-objs := inv_mpu_spi.o

drivers/iio/imu/inv_mpu6050/inv_mpu_core.c

+6 −1
Original line number Diff line number Diff line
@@ -152,6 +152,7 @@ int inv_mpu6050_set_power_itg(struct inv_mpu6050_state *st, bool power_on) 


	return 0;

}

EXPORT_SYMBOL_GPL(inv_mpu6050_set_power_itg);



/**

 *  inv_mpu6050_init_config() - Initialize hardware, disable FIFO.
@@ -676,7 +677,8 @@ static int inv_check_and_setup_chip(struct inv_mpu6050_state *st) 
	return 0;

}



int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name)

int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,

		       int (*inv_mpu_bus_setup)(struct iio_dev *))

{

	struct inv_mpu6050_state *st;

	struct iio_dev *indio_dev;
@@ -700,6 +702,9 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name) 
	if (result)

		return result;



	if (inv_mpu_bus_setup)

		inv_mpu_bus_setup(indio_dev);



	result = inv_mpu6050_init_config(indio_dev);

	if (result) {

		dev_err(dev, "Could not initialize device.\n");

drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c

+1 −1
Original line number Diff line number Diff line
@@ -129,7 +129,7 @@ static int inv_mpu_probe(struct i2c_client *client, 
		return PTR_ERR(regmap);

	}



	result = inv_mpu_core_probe(regmap, client->irq, name);

	result = inv_mpu_core_probe(regmap, client->irq, name, NULL);

	if (result < 0)

		return result;

drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h

+5 −1
Original line number Diff line number Diff line
@@ -62,6 +62,7 @@ struct inv_mpu6050_reg_map { 
enum inv_devices {

	INV_MPU6050,

	INV_MPU6500,

	INV_MPU6000,

	INV_NUM_PARTS

};
@@ -154,6 +155,7 @@ struct inv_mpu6050_state { 
#define INV_MPU6050_BIT_I2C_MST_EN          0x20

#define INV_MPU6050_BIT_FIFO_EN             0x40

#define INV_MPU6050_BIT_DMP_EN              0x80

#define INV_MPU6050_BIT_I2C_IF_DIS          0x10



#define INV_MPU6050_REG_PWR_MGMT_1          0x6B

#define INV_MPU6050_BIT_H_RESET             0x80
@@ -258,6 +260,8 @@ int inv_mpu6050_write_reg(struct inv_mpu6050_state *st, int reg, u8 val); 
int inv_mpu6050_set_power_itg(struct inv_mpu6050_state *st, bool power_on);

int inv_mpu_acpi_create_mux_client(struct i2c_client *client);

void inv_mpu_acpi_delete_mux_client(struct i2c_client *client);

int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name);

int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,

		      int (*inv_mpu_bus_setup)(struct iio_dev *));

int inv_mpu_core_remove(struct device *dev);

int inv_mpu6050_set_power_itg(struct inv_mpu6050_state *st, bool power_on);

extern const struct dev_pm_ops inv_mpu_pmops;