diff options
Diffstat (limited to 'drivers/hwmon/tmp102.c')
| -rw-r--r-- | drivers/hwmon/tmp102.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/hwmon/tmp102.c b/drivers/hwmon/tmp102.c index 8af44a33055f..5b10c395a84d 100644 --- a/drivers/hwmon/tmp102.c +++ b/drivers/hwmon/tmp102.c @@ -10,12 +10,11 @@ #include <linux/slab.h> #include <linux/i2c.h> #include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> #include <linux/err.h> -#include <linux/mutex.h> #include <linux/device.h> #include <linux/jiffies.h> #include <linux/regmap.h> +#include <linux/regulator/consumer.h> #include <linux/of.h> #define DRIVER_NAME "tmp102" @@ -52,6 +51,7 @@ #define CONVERSION_TIME_MS 35 /* in milli-seconds */ struct tmp102 { + const char *label; struct regmap *regmap; u16 config_orig; unsigned long ready_time; @@ -69,6 +69,16 @@ static inline u16 tmp102_mC_to_reg(int val) return (val * 128) / 1000; } +static int tmp102_read_string(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, const char **str) +{ + struct tmp102 *tmp102 = dev_get_drvdata(dev); + + *str = tmp102->label; + + return 0; +} + static int tmp102_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long *temp) { @@ -127,12 +137,18 @@ static int tmp102_write(struct device *dev, enum hwmon_sensor_types type, static umode_t tmp102_is_visible(const void *data, enum hwmon_sensor_types type, u32 attr, int channel) { + const struct tmp102 *tmp102 = data; + if (type != hwmon_temp) return 0; switch (attr) { case hwmon_temp_input: return 0444; + case hwmon_temp_label: + if (tmp102->label) + return 0444; + return 0; case hwmon_temp_max_hyst: case hwmon_temp_max: return 0644; @@ -145,12 +161,13 @@ static const struct hwmon_channel_info * const tmp102_info[] = { HWMON_CHANNEL_INFO(chip, HWMON_C_REGISTER_TZ), HWMON_CHANNEL_INFO(temp, - HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST), + HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_MAX | HWMON_T_MAX_HYST), NULL }; static const struct hwmon_ops tmp102_hwmon_ops = { .is_visible = tmp102_is_visible, + .read_string = tmp102_read_string, .read = tmp102_read, .write = tmp102_write, }; @@ -204,10 +221,16 @@ static int tmp102_probe(struct i2c_client *client) return -ENODEV; } + err = devm_regulator_get_enable_optional(dev, "vcc"); + if (err < 0 && err != -ENODEV) + return dev_err_probe(dev, err, "Failed to enable regulator\n"); + tmp102 = devm_kzalloc(dev, sizeof(*tmp102), GFP_KERNEL); if (!tmp102) return -ENOMEM; + of_property_read_string(dev->of_node, "label", &tmp102->label); + i2c_set_clientdata(client, tmp102); tmp102->regmap = devm_regmap_init_i2c(client, &tmp102_regmap_config); |