diff options
Diffstat (limited to 'drivers/hwmon/adt7475.c')
| -rw-r--r-- | drivers/hwmon/adt7475.c | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c index c646670b9ea9..c803e3c5fcd4 100644 --- a/drivers/hwmon/adt7475.c +++ b/drivers/hwmon/adt7475.c @@ -13,6 +13,7 @@ */ #include <linux/module.h> +#include <linux/of_device.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/i2c.h> @@ -58,6 +59,8 @@ #define REG_VENDID 0x3E #define REG_DEVID2 0x3F +#define REG_CONFIG1 0x40 + #define REG_STATUS1 0x41 #define REG_STATUS2 0x42 @@ -161,6 +164,27 @@ static const struct i2c_device_id adt7475_id[] = { }; MODULE_DEVICE_TABLE(i2c, adt7475_id); +static const struct of_device_id adt7475_of_match[] = { + { + .compatible = "adi,adt7473", + .data = (void *)adt7473 + }, + { + .compatible = "adi,adt7475", + .data = (void *)adt7475 + }, + { + .compatible = "adi,adt7476", + .data = (void *)adt7476 + }, + { + .compatible = "adi,adt7490", + .data = (void *)adt7490 + }, + { }, +}; +MODULE_DEVICE_TABLE(of, adt7475_of_match); + struct adt7475_data { struct device *hwmon_dev; struct mutex lock; @@ -1250,6 +1274,7 @@ static void adt7475_remove_files(struct i2c_client *client, static int adt7475_probe(struct i2c_client *client, const struct i2c_device_id *id) { + enum chips chip; static const char * const names[] = { [adt7473] = "ADT7473", [adt7475] = "ADT7475", @@ -1268,8 +1293,13 @@ static int adt7475_probe(struct i2c_client *client, mutex_init(&data->lock); i2c_set_clientdata(client, data); + if (client->dev.of_node) + chip = (enum chips)of_device_get_match_data(&client->dev); + else + chip = id->driver_data; + /* Initialize device-specific values */ - switch (id->driver_data) { + switch (chip) { case adt7476: data->has_voltage = 0x0e; /* in1 to in3 */ revision = adt7475_read(REG_DEVID2) & 0x07; @@ -1343,6 +1373,17 @@ static int adt7475_probe(struct i2c_client *client, for (i = 0; i < ADT7475_PWM_COUNT; i++) adt7475_read_pwm(client, i); + /* Start monitoring */ + switch (chip) { + case adt7475: + case adt7476: + i2c_smbus_write_byte_data(client, REG_CONFIG1, + adt7475_read(REG_CONFIG1) | 0x01); + break; + default: + break; + } + ret = sysfs_create_group(&client->dev.kobj, &adt7475_attr_group); if (ret) return ret; @@ -1428,6 +1469,7 @@ static struct i2c_driver adt7475_driver = { .class = I2C_CLASS_HWMON, .driver = { .name = "adt7475", + .of_match_table = of_match_ptr(adt7475_of_match), }, .probe = adt7475_probe, .remove = adt7475_remove, |