x86/mm/pat: Don't report PAT on CPUs that don't support it
[linux/fpc-iii.git] / drivers / iio / accel / st_accel_i2c.c
blob543f0ad7fd7e383922201ab258ade3761c766f5a
1 /*
2 * STMicroelectronics accelerometers driver
4 * Copyright 2012-2013 STMicroelectronics Inc.
6 * Denis Ciocca <denis.ciocca@st.com>
8 * Licensed under the GPL-2.
9 */
11 #include <linux/kernel.h>
12 #include <linux/module.h>
13 #include <linux/slab.h>
14 #include <linux/acpi.h>
15 #include <linux/i2c.h>
16 #include <linux/iio/iio.h>
18 #include <linux/iio/common/st_sensors.h>
19 #include <linux/iio/common/st_sensors_i2c.h>
20 #include "st_accel.h"
22 #ifdef CONFIG_OF
23 static const struct of_device_id st_accel_of_match[] = {
25 /* An older compatible */
26 .compatible = "st,lis3lv02d",
27 .data = LIS3LV02DL_ACCEL_DEV_NAME,
30 .compatible = "st,lis3lv02dl-accel",
31 .data = LIS3LV02DL_ACCEL_DEV_NAME,
34 .compatible = "st,lsm303dlh-accel",
35 .data = LSM303DLH_ACCEL_DEV_NAME,
38 .compatible = "st,lsm303dlhc-accel",
39 .data = LSM303DLHC_ACCEL_DEV_NAME,
42 .compatible = "st,lis3dh-accel",
43 .data = LIS3DH_ACCEL_DEV_NAME,
46 .compatible = "st,lsm330d-accel",
47 .data = LSM330D_ACCEL_DEV_NAME,
50 .compatible = "st,lsm330dl-accel",
51 .data = LSM330DL_ACCEL_DEV_NAME,
54 .compatible = "st,lsm330dlc-accel",
55 .data = LSM330DLC_ACCEL_DEV_NAME,
58 .compatible = "st,lis331dl-accel",
59 .data = LIS331DL_ACCEL_DEV_NAME,
62 .compatible = "st,lis331dlh-accel",
63 .data = LIS331DLH_ACCEL_DEV_NAME,
66 .compatible = "st,lsm303dl-accel",
67 .data = LSM303DL_ACCEL_DEV_NAME,
70 .compatible = "st,lsm303dlm-accel",
71 .data = LSM303DLM_ACCEL_DEV_NAME,
74 .compatible = "st,lsm330-accel",
75 .data = LSM330_ACCEL_DEV_NAME,
78 .compatible = "st,lsm303agr-accel",
79 .data = LSM303AGR_ACCEL_DEV_NAME,
82 .compatible = "st,lis2dh12-accel",
83 .data = LIS2DH12_ACCEL_DEV_NAME,
86 .compatible = "st,h3lis331dl-accel",
87 .data = H3LIS331DL_DRIVER_NAME,
90 .compatible = "st,lis3l02dq",
91 .data = LIS3L02DQ_ACCEL_DEV_NAME,
94 .compatible = "st,lng2dm-accel",
95 .data = LNG2DM_ACCEL_DEV_NAME,
97 {},
99 MODULE_DEVICE_TABLE(of, st_accel_of_match);
100 #else
101 #define st_accel_of_match NULL
102 #endif
104 #ifdef CONFIG_ACPI
105 static const struct acpi_device_id st_accel_acpi_match[] = {
106 {"SMO8A90", LNG2DM},
107 { },
109 MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
110 #else
111 #define st_accel_acpi_match NULL
112 #endif
114 static const struct i2c_device_id st_accel_id_table[] = {
115 { LSM303DLH_ACCEL_DEV_NAME, LSM303DLH },
116 { LSM303DLHC_ACCEL_DEV_NAME, LSM303DLHC },
117 { LIS3DH_ACCEL_DEV_NAME, LIS3DH },
118 { LSM330D_ACCEL_DEV_NAME, LSM330D },
119 { LSM330DL_ACCEL_DEV_NAME, LSM330DL },
120 { LSM330DLC_ACCEL_DEV_NAME, LSM330DLC },
121 { LIS331DLH_ACCEL_DEV_NAME, LIS331DLH },
122 { LSM303DL_ACCEL_DEV_NAME, LSM303DL },
123 { LSM303DLM_ACCEL_DEV_NAME, LSM303DLM },
124 { LSM330_ACCEL_DEV_NAME, LSM330 },
125 { LSM303AGR_ACCEL_DEV_NAME, LSM303AGR },
126 { LIS2DH12_ACCEL_DEV_NAME, LIS2DH12 },
127 { LIS3L02DQ_ACCEL_DEV_NAME, LIS3L02DQ },
128 { LNG2DM_ACCEL_DEV_NAME, LNG2DM },
131 MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
133 static int st_accel_i2c_probe(struct i2c_client *client,
134 const struct i2c_device_id *id)
136 struct iio_dev *indio_dev;
137 struct st_sensor_data *adata;
138 int ret;
140 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
141 if (!indio_dev)
142 return -ENOMEM;
144 adata = iio_priv(indio_dev);
146 if (client->dev.of_node) {
147 st_sensors_of_i2c_probe(client, st_accel_of_match);
148 } else if (ACPI_HANDLE(&client->dev)) {
149 ret = st_sensors_match_acpi_device(&client->dev);
150 if ((ret < 0) || (ret >= ST_ACCEL_MAX))
151 return -ENODEV;
153 strncpy(client->name, st_accel_id_table[ret].name,
154 sizeof(client->name));
155 client->name[sizeof(client->name) - 1] = '\0';
156 } else if (!id)
157 return -ENODEV;
160 st_sensors_i2c_configure(indio_dev, client, adata);
162 ret = st_accel_common_probe(indio_dev);
163 if (ret < 0)
164 return ret;
166 return 0;
169 static int st_accel_i2c_remove(struct i2c_client *client)
171 st_accel_common_remove(i2c_get_clientdata(client));
173 return 0;
176 static struct i2c_driver st_accel_driver = {
177 .driver = {
178 .name = "st-accel-i2c",
179 .of_match_table = of_match_ptr(st_accel_of_match),
180 .acpi_match_table = ACPI_PTR(st_accel_acpi_match),
182 .probe = st_accel_i2c_probe,
183 .remove = st_accel_i2c_remove,
184 .id_table = st_accel_id_table,
186 module_i2c_driver(st_accel_driver);
188 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
189 MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
190 MODULE_LICENSE("GPL v2");