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Commit a483ab79 authored by Linus Walleij's avatar Linus Walleij Committed by Jonathan Cameron
Browse files

iio: accel: kxsd9: Add I2C transport 



This adds I2C regmap transport for the KXSD9 driver.
Tested on the KXSD9 sensor on the APQ8060 Dragonboard.

Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 0d1fb2d5

drivers/iio/accel/Kconfig

+11 −1
Original line number Original line Diff line number Diff line
@@ -121,7 +121,7 @@ config KXSD9 
	tristate "Kionix KXSD9 Accelerometer Driver"

	tristate "Kionix KXSD9 Accelerometer Driver"

	help

	help

	  Say yes here to build support for the Kionix KXSD9 accelerometer.

	  Say yes here to build support for the Kionix KXSD9 accelerometer.

	  Currently this only supports the device via an SPI interface.

	  It can be accessed using an (optional) SPI or I2C interface.





	  To compile this driver as a module, choose M here: the module

	  To compile this driver as a module, choose M here: the module

	  will be called kxsd9.

	  will be called kxsd9.
@@ -136,6 +136,16 @@ config KXSD9_SPI 
	  Say yes here to enable the Kionix KXSD9 accelerometer

	  Say yes here to enable the Kionix KXSD9 accelerometer

	  SPI transport channel.

	  SPI transport channel.





config KXSD9_I2C

	tristate "Kionix KXSD9 I2C transport"

	depends on KXSD9

	depends on I2C

	default KXSD9

	select REGMAP_I2C

	help

	  Say yes here to enable the Kionix KXSD9 accelerometer

	  I2C transport channel.



config KXCJK1013

config KXCJK1013

	tristate "Kionix 3-Axis Accelerometer Driver"

	tristate "Kionix 3-Axis Accelerometer Driver"

	depends on I2C

	depends on I2C

drivers/iio/accel/Makefile

+1 −0
Original line number Original line Diff line number Diff line
@@ -14,6 +14,7 @@ obj-$(CONFIG_HID_SENSOR_ACCEL_3D) += hid-sensor-accel-3d.o 
obj-$(CONFIG_KXCJK1013) += kxcjk-1013.o

obj-$(CONFIG_KXCJK1013) += kxcjk-1013.o

obj-$(CONFIG_KXSD9)	+= kxsd9.o

obj-$(CONFIG_KXSD9)	+= kxsd9.o

obj-$(CONFIG_KXSD9_SPI)	+= kxsd9-spi.o

obj-$(CONFIG_KXSD9_SPI)	+= kxsd9-spi.o

obj-$(CONFIG_KXSD9_I2C)	+= kxsd9-i2c.o





obj-$(CONFIG_MMA7455)		+= mma7455_core.o

obj-$(CONFIG_MMA7455)		+= mma7455_core.o

obj-$(CONFIG_MMA7455_I2C)	+= mma7455_i2c.o

obj-$(CONFIG_MMA7455_I2C)	+= mma7455_i2c.o

drivers/iio/accel/kxsd9-i2c.c

0 → 100644
+63 −0
Original line number Original line Diff line number Diff line 
#include <linux/device.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/slab.h>

#include <linux/i2c.h>

#include <linux/delay.h>

#include <linux/regmap.h>



#include "kxsd9.h"



static int kxsd9_i2c_probe(struct i2c_client *i2c,

			   const struct i2c_device_id *id)

{

	static const struct regmap_config config = {

		.reg_bits = 8,

		.val_bits = 8,

		.max_register = 0x0e,

	};

	struct regmap *regmap;



	regmap = devm_regmap_init_i2c(i2c, &config);

	if (IS_ERR(regmap)) {

		dev_err(&i2c->dev, "Failed to register i2c regmap %d\n",

			(int)PTR_ERR(regmap));

		return PTR_ERR(regmap);

	}



	return kxsd9_common_probe(&i2c->dev,

				  regmap,

				  i2c->name);

}



static int kxsd9_i2c_remove(struct i2c_client *client)

{

	return kxsd9_common_remove(&client->dev);

}



#ifdef CONFIG_OF

static const struct of_device_id kxsd9_of_match[] = {

	{ .compatible = "kionix,kxsd9", },

	{ },

};

MODULE_DEVICE_TABLE(of, kxsd9_of_match);

#else

#define kxsd9_of_match NULL

#endif



static const struct i2c_device_id kxsd9_i2c_id[] = {

	{"kxsd9", 0},

	{ },

};

MODULE_DEVICE_TABLE(i2c, kxsd9_i2c_id);



static struct i2c_driver kxsd9_i2c_driver = {

	.driver = {

		.name	= "kxsd9",

		.of_match_table = of_match_ptr(kxsd9_of_match),

	},

	.probe		= kxsd9_i2c_probe,

	.remove		= kxsd9_i2c_remove,

	.id_table	= kxsd9_i2c_id,

};

module_i2c_driver(kxsd9_i2c_driver);