hwmon: (lm75) Move updating the sample interval to its own function

We'll need per-chip handling for updating the sample interval.
To prepare for it, separate the code implementing it into its own
function.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index 6474b8f219817f11cb72855f0bde9a04a1f15b6f..644da2620a2647ded6e6d4aa6d0248f2785113f1 100644 (file)
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -388,27 +388,32 @@ static int lm75_write_temp(struct device *dev, u32 attr, long temp)
        return regmap_write(data->regmap, reg, (u16)temp);
 }
 
-static int lm75_write_chip(struct device *dev, u32 attr, long val)
+static int lm75_update_interval(struct device *dev, long val)
 {
        struct lm75_data *data = dev_get_drvdata(dev);
        u8 index;
        s32 err;
 
-       switch (attr) {
-       case hwmon_chip_update_interval:
-               index = find_closest(val, data->params->sample_times,
-                                    (int)data->params->num_sample_times);
+       index = find_closest(val, data->params->sample_times,
+                            (int)data->params->num_sample_times);
 
-               err = lm75_write_config(data,
-                                       lm75_sample_set_masks[index],
-                                       LM75_SAMPLE_CLEAR_MASK);
-               if (err)
-                       return err;
-               data->sample_time = data->params->sample_times[index];
+       err = lm75_write_config(data, lm75_sample_set_masks[index],
+                               LM75_SAMPLE_CLEAR_MASK);
+       if (err)
+               return err;
 
-               if (data->params->resolutions)
-                       data->resolution = data->params->resolutions[index];
-               break;
+       data->sample_time = data->params->sample_times[index];
+       if (data->params->resolutions)
+               data->resolution = data->params->resolutions[index];
+
+       return 0;
+}
+
+static int lm75_write_chip(struct device *dev, u32 attr, long val)
+{
+       switch (attr) {
+       case hwmon_chip_update_interval:
+               return lm75_update_interval(dev, val);
        default:
                return -EINVAL;
        }