projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| e4a70e3e LB |
1 | /* |
| 2 | * STMicroelectronics hts221 i2c driver | |
| 3 | * | |
| 4 | * Copyright 2016 STMicroelectronics Inc. | |
| 5 | * | |
| 6 | * Lorenzo Bianconi <lorenzo.bianconi@st.com> | |
| 7 | * | |
| 8 | * Licensed under the GPL-2. | |
| 9 | */ | |
| 10 | ||
| 11 | #include <linux/kernel.h> | |
| 12 | #include <linux/module.h> | |
| 25fc503e | 13 | #include <linux/acpi.h> |
| e4a70e3e LB |
14 | #include <linux/i2c.h> |
| 15 | #include <linux/slab.h> | |
| 62177922 | 16 | #include <linux/regmap.h> |
| e4a70e3e | 17 | |
| 62177922 | 18 | #include "hts221.h" |
| e4a70e3e | 19 | |
| 62177922 | 20 | #define HTS221_I2C_AUTO_INCREMENT BIT(7) |
| e4a70e3e | 21 | |
| 62177922 LB |
22 | static const struct regmap_config hts221_i2c_regmap_config = { |
| 23 | .reg_bits = 8, | |
| 24 | .val_bits = 8, | |
| 25 | .write_flag_mask = HTS221_I2C_AUTO_INCREMENT, | |
| 26 | .read_flag_mask = HTS221_I2C_AUTO_INCREMENT, | |
| e4a70e3e LB |
27 | }; |
| 28 | ||
| 29 | static int hts221_i2c_probe(struct i2c_client *client, | |
| 30 | const struct i2c_device_id *id) | |
| 31 | { | |
| 62177922 LB |
32 | struct regmap *regmap; |
| 33 | ||
| 34 | regmap = devm_regmap_init_i2c(client, &hts221_i2c_regmap_config); | |
| 35 | if (IS_ERR(regmap)) { | |
| 36 | dev_err(&client->dev, "Failed to register i2c regmap %d\n", | |
| 37 | (int)PTR_ERR(regmap)); | |
| 38 | return PTR_ERR(regmap); | |
| 39 | } | |
| 40 | ||
| e1ca1141 | 41 | return hts221_probe(&client->dev, client->irq, |
| 62177922 | 42 | client->name, regmap); |
| e4a70e3e LB |
43 | } |
| 44 | ||
| 25fc503e SB |
45 | static const struct acpi_device_id hts221_acpi_match[] = { |
| 46 | {"SMO9100", 0}, | |
| 47 | { }, | |
| 48 | }; | |
| 49 | MODULE_DEVICE_TABLE(acpi, hts221_acpi_match); | |
| 50 | ||
| e4a70e3e LB |
51 | static const struct of_device_id hts221_i2c_of_match[] = { |
| 52 | { .compatible = "st,hts221", }, | |
| 53 | {}, | |
| 54 | }; | |
| 55 | MODULE_DEVICE_TABLE(of, hts221_i2c_of_match); | |
| 56 | ||
| 57 | static const struct i2c_device_id hts221_i2c_id_table[] = { | |
| 58 | { HTS221_DEV_NAME }, | |
| 59 | {}, | |
| 60 | }; | |
| 61 | MODULE_DEVICE_TABLE(i2c, hts221_i2c_id_table); | |
| 62 | ||
| 63 | static struct i2c_driver hts221_driver = { | |
| 64 | .driver = { | |
| 65 | .name = "hts221_i2c", | |
| b7079eea | 66 | .pm = &hts221_pm_ops, |
| e4a70e3e | 67 | .of_match_table = of_match_ptr(hts221_i2c_of_match), |
| 25fc503e | 68 | .acpi_match_table = ACPI_PTR(hts221_acpi_match), |
| e4a70e3e LB |
69 | }, |
| 70 | .probe = hts221_i2c_probe, | |
| 71 | .id_table = hts221_i2c_id_table, | |
| 72 | }; | |
| 73 | module_i2c_driver(hts221_driver); | |
| 74 | ||
| 75 | MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>"); | |
| 76 | MODULE_DESCRIPTION("STMicroelectronics hts221 i2c driver"); | |
| 77 | MODULE_LICENSE("GPL v2"); |