[linux-block.git] / drivers / iio / accel / st_accel_i2c.c

/*
 * STMicroelectronics accelerometers driver
 *
 * Copyright 2012-2013 STMicroelectronics Inc.
 *
 * Denis Ciocca <denis.ciocca@st.com>
 *
 * Licensed under the GPL-2.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/acpi.h>
#include <linux/i2c.h>
#include <linux/iio/iio.h>

#include <linux/iio/common/st_sensors.h>
#include <linux/iio/common/st_sensors_i2c.h>
#include "st_accel.h"

#ifdef CONFIG_OF
static const struct of_device_id st_accel_of_match[] = {
	{
		/* An older compatible */
		.compatible = "st,lis3lv02d",
		.data = LIS3LV02DL_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis3lv02dl-accel",
		.data = LIS3LV02DL_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm303dlh-accel",
		.data = LSM303DLH_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm303dlhc-accel",
		.data = LSM303DLHC_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis3dh-accel",
		.data = LIS3DH_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm330d-accel",
		.data = LSM330D_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm330dl-accel",
		.data = LSM330DL_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm330dlc-accel",
		.data = LSM330DLC_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis331dl-accel",
		.data = LIS331DL_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis331dlh-accel",
		.data = LIS331DLH_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm303dl-accel",
		.data = LSM303DL_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm303dlm-accel",
		.data = LSM303DLM_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm330-accel",
		.data = LSM330_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm303agr-accel",
		.data = LSM303AGR_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis2dh12-accel",
		.data = LIS2DH12_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,h3lis331dl-accel",
		.data = H3LIS331DL_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis3l02dq",
		.data = LIS3L02DQ_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lng2dm-accel",
		.data = LNG2DM_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis2dw12",
		.data = LIS2DW12_ACCEL_DEV_NAME,
	},
	{},
};
MODULE_DEVICE_TABLE(of, st_accel_of_match);
#else
#define st_accel_of_match NULL
#endif

#ifdef CONFIG_ACPI
static const struct acpi_device_id st_accel_acpi_match[] = {
	{"SMO8A90", LNG2DM},
	{ },
};
MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
#else
#define st_accel_acpi_match NULL
#endif

static const struct i2c_device_id st_accel_id_table[] = {
	{ LSM303DLH_ACCEL_DEV_NAME, LSM303DLH },
	{ LSM303DLHC_ACCEL_DEV_NAME, LSM303DLHC },
	{ LIS3DH_ACCEL_DEV_NAME, LIS3DH },
	{ LSM330D_ACCEL_DEV_NAME, LSM330D },
	{ LSM330DL_ACCEL_DEV_NAME, LSM330DL },
	{ LSM330DLC_ACCEL_DEV_NAME, LSM330DLC },
	{ LIS331DLH_ACCEL_DEV_NAME, LIS331DLH },
	{ LSM303DL_ACCEL_DEV_NAME, LSM303DL },
	{ LSM303DLM_ACCEL_DEV_NAME, LSM303DLM },
	{ LSM330_ACCEL_DEV_NAME, LSM330 },
	{ LSM303AGR_ACCEL_DEV_NAME, LSM303AGR },
	{ LIS2DH12_ACCEL_DEV_NAME, LIS2DH12 },
	{ LIS3L02DQ_ACCEL_DEV_NAME, LIS3L02DQ },
	{ LNG2DM_ACCEL_DEV_NAME, LNG2DM },
	{ H3LIS331DL_ACCEL_DEV_NAME, H3LIS331DL },
	{ LIS331DL_ACCEL_DEV_NAME, LIS331DL },
	{ LIS3LV02DL_ACCEL_DEV_NAME, LIS3LV02DL },
	{ LIS2DW12_ACCEL_DEV_NAME, LIS2DW12 },
	{},
};
MODULE_DEVICE_TABLE(i2c, st_accel_id_table);

static int st_accel_i2c_probe(struct i2c_client *client,
						const struct i2c_device_id *id)
{
	struct iio_dev *indio_dev;
	struct st_sensor_data *adata;
	int ret;

	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
	if (!indio_dev)
		return -ENOMEM;

	adata = iio_priv(indio_dev);

	if (client->dev.of_node) {
		st_sensors_of_name_probe(&client->dev, st_accel_of_match,
					 client->name, sizeof(client->name));
	} else if (ACPI_HANDLE(&client->dev)) {
		ret = st_sensors_match_acpi_device(&client->dev);
		if ((ret < 0) || (ret >= ST_ACCEL_MAX))
			return -ENODEV;

		strlcpy(client->name, st_accel_id_table[ret].name,
				sizeof(client->name));
	} else if (!id)
		return -ENODEV;


	st_sensors_i2c_configure(indio_dev, client, adata);

	ret = st_accel_common_probe(indio_dev);
	if (ret < 0)
		return ret;

	return 0;
}

static int st_accel_i2c_remove(struct i2c_client *client)
{
	st_accel_common_remove(i2c_get_clientdata(client));

	return 0;
}

static struct i2c_driver st_accel_driver = {
	.driver = {
		.name = "st-accel-i2c",
		.of_match_table = of_match_ptr(st_accel_of_match),
		.acpi_match_table = ACPI_PTR(st_accel_acpi_match),
	},
	.probe = st_accel_i2c_probe,
	.remove = st_accel_i2c_remove,
	.id_table = st_accel_id_table,
};
module_i2c_driver(st_accel_driver);

MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
d6251168 DC	1	/*
	2	* STMicroelectronics accelerometers driver
	3	*
	4	* Copyright 2012-2013 STMicroelectronics Inc.
	5	*
	6	* Denis Ciocca <denis.ciocca@st.com>
	7	*
	8	* Licensed under the GPL-2.
	9	*/
	10
	11	#include <linux/kernel.h>
	12	#include <linux/module.h>
	13	#include <linux/slab.h>
89a2a93f	14	#include <linux/acpi.h>
d6251168 DC	15	#include <linux/i2c.h>
d6251168 DC	16	#include <linux/iio/iio.h>
d6251168 DC	17
	18	#include <linux/iio/common/st_sensors.h>
	19	#include <linux/iio/common/st_sensors_i2c.h>
	20	#include "st_accel.h"
	21
2d7768a8 LW	22	#ifdef CONFIG_OF
2d7768a8 LW	23	static const struct of_device_id st_accel_of_match[] = {
76222772 LW	24	{
	25	/* An older compatible */
	26	.compatible = "st,lis3lv02d",
	27	.data = LIS3LV02DL_ACCEL_DEV_NAME,
	28	},
3acddf74 LW	29	{
	30	.compatible = "st,lis3lv02dl-accel",
	31	.data = LIS3LV02DL_ACCEL_DEV_NAME,
	32	},
2d7768a8 LW	33	{
	34	.compatible = "st,lsm303dlh-accel",
	35	.data = LSM303DLH_ACCEL_DEV_NAME,
	36	},
	37	{
	38	.compatible = "st,lsm303dlhc-accel",
	39	.data = LSM303DLHC_ACCEL_DEV_NAME,
	40	},
	41	{
	42	.compatible = "st,lis3dh-accel",
	43	.data = LIS3DH_ACCEL_DEV_NAME,
	44	},
	45	{
	46	.compatible = "st,lsm330d-accel",
	47	.data = LSM330D_ACCEL_DEV_NAME,
	48	},
	49	{
	50	.compatible = "st,lsm330dl-accel",
	51	.data = LSM330DL_ACCEL_DEV_NAME,
	52	},
	53	{
	54	.compatible = "st,lsm330dlc-accel",
	55	.data = LSM330DLC_ACCEL_DEV_NAME,
	56	},
bbf5f037 LW	57	{
	58	.compatible = "st,lis331dl-accel",
	59	.data = LIS331DL_ACCEL_DEV_NAME,
	60	},
2d7768a8 LW	61	{
	62	.compatible = "st,lis331dlh-accel",
	63	.data = LIS331DLH_ACCEL_DEV_NAME,
	64	},
	65	{
	66	.compatible = "st,lsm303dl-accel",
	67	.data = LSM303DL_ACCEL_DEV_NAME,
	68	},
	69	{
	70	.compatible = "st,lsm303dlm-accel",
	71	.data = LSM303DLM_ACCEL_DEV_NAME,
	72	},
	73	{
	74	.compatible = "st,lsm330-accel",
	75	.data = LSM330_ACCEL_DEV_NAME,
	76	},
ddc05fa2 GB	77	{
	78	.compatible = "st,lsm303agr-accel",
	79	.data = LSM303AGR_ACCEL_DEV_NAME,
	80	},
34dc578d GB	81	{
	82	.compatible = "st,lis2dh12-accel",
	83	.data = LIS2DH12_ACCEL_DEV_NAME,
	84	},
1e52fefc TB	85	{
1e52fefc TB	86	.compatible = "st,h3lis331dl-accel",
b30f1593	87	.data = H3LIS331DL_ACCEL_DEV_NAME,
1e52fefc	88	},
4e68cfbf JC	89	{
	90	.compatible = "st,lis3l02dq",
	91	.data = LIS3L02DQ_ACCEL_DEV_NAME,
	92	},
dcdb0a78 LB	93	{
	94	.compatible = "st,lng2dm-accel",
	95	.data = LNG2DM_ACCEL_DEV_NAME,
	96	},
f94124f9 LB	97	{
	98	.compatible = "st,lis2dw12",
	99	.data = LIS2DW12_ACCEL_DEV_NAME,
	100	},
2d7768a8 LW	101	{},
	102	};
	103	MODULE_DEVICE_TABLE(of, st_accel_of_match);
	104	#else
	105	#define st_accel_of_match NULL
	106	#endif
	107
89a2a93f SB	108	#ifdef CONFIG_ACPI
	109	static const struct acpi_device_id st_accel_acpi_match[] = {
	110	{"SMO8A90", LNG2DM},
	111	{ },
	112	};
	113	MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
	114	#else
	115	#define st_accel_acpi_match NULL
	116	#endif
	117
	118	static const struct i2c_device_id st_accel_id_table[] = {
	119	{ LSM303DLH_ACCEL_DEV_NAME, LSM303DLH },
	120	{ LSM303DLHC_ACCEL_DEV_NAME, LSM303DLHC },
	121	{ LIS3DH_ACCEL_DEV_NAME, LIS3DH },
	122	{ LSM330D_ACCEL_DEV_NAME, LSM330D },
	123	{ LSM330DL_ACCEL_DEV_NAME, LSM330DL },
	124	{ LSM330DLC_ACCEL_DEV_NAME, LSM330DLC },
	125	{ LIS331DLH_ACCEL_DEV_NAME, LIS331DLH },
	126	{ LSM303DL_ACCEL_DEV_NAME, LSM303DL },
	127	{ LSM303DLM_ACCEL_DEV_NAME, LSM303DLM },
	128	{ LSM330_ACCEL_DEV_NAME, LSM330 },
	129	{ LSM303AGR_ACCEL_DEV_NAME, LSM303AGR },
	130	{ LIS2DH12_ACCEL_DEV_NAME, LIS2DH12 },
	131	{ LIS3L02DQ_ACCEL_DEV_NAME, LIS3L02DQ },
	132	{ LNG2DM_ACCEL_DEV_NAME, LNG2DM },
b30f1593	133	{ H3LIS331DL_ACCEL_DEV_NAME, H3LIS331DL },
6011208d LB	134	{ LIS331DL_ACCEL_DEV_NAME, LIS331DL },
6011208d LB	135	{ LIS3LV02DL_ACCEL_DEV_NAME, LIS3LV02DL },
f94124f9	136	{ LIS2DW12_ACCEL_DEV_NAME, LIS2DW12 },
89a2a93f SB	137	{},
	138	};
	139	MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
	140
d6251168 DC	141	static int st_accel_i2c_probe(struct i2c_client *client,
	142	const struct i2c_device_id *id)
	143	{
	144	struct iio_dev *indio_dev;
	145	struct st_sensor_data *adata;
89a2a93f	146	int ret;
d6251168	147
6b7e0a9c SK	148	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
	149	if (!indio_dev)
	150	return -ENOMEM;
d6251168 DC	151
d6251168 DC	152	adata = iio_priv(indio_dev);
89a2a93f SB	153
89a2a93f SB	154	if (client->dev.of_node) {
250bbbdb LB	155	st_sensors_of_name_probe(&client->dev, st_accel_of_match,
250bbbdb LB	156	client->name, sizeof(client->name));
89a2a93f SB	157	} else if (ACPI_HANDLE(&client->dev)) {
	158	ret = st_sensors_match_acpi_device(&client->dev);
	159	if ((ret < 0) \|\| (ret >= ST_ACCEL_MAX))
	160	return -ENODEV;
	161
cb60610a	162	strlcpy(client->name, st_accel_id_table[ret].name,
89a2a93f	163	sizeof(client->name));
89a2a93f SB	164	} else if (!id)
	165	return -ENODEV;
	166
d6251168 DC	167
	168	st_sensors_i2c_configure(indio_dev, client, adata);
	169
89a2a93f SB	170	ret = st_accel_common_probe(indio_dev);
	171	if (ret < 0)
	172	return ret;
d6251168 DC	173
d6251168 DC	174	return 0;
d6251168 DC	175	}
	176
	177	static int st_accel_i2c_remove(struct i2c_client *client)
	178	{
	179	st_accel_common_remove(i2c_get_clientdata(client));
	180
	181	return 0;
	182	}
	183
d6251168 DC	184	static struct i2c_driver st_accel_driver = {
d6251168 DC	185	.driver = {
d6251168	186	.name = "st-accel-i2c",
2d7768a8	187	.of_match_table = of_match_ptr(st_accel_of_match),
89a2a93f	188	.acpi_match_table = ACPI_PTR(st_accel_acpi_match),
d6251168 DC	189	},
	190	.probe = st_accel_i2c_probe,
	191	.remove = st_accel_i2c_remove,
	192	.id_table = st_accel_id_table,
	193	};
	194	module_i2c_driver(st_accel_driver);
	195
	196	MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
	197	MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
	198	MODULE_LICENSE("GPL v2");