hwmon: (lm85) Return standard values in pwmN_enable

The values returned by the lm85 driver in pwmN_enable sysfs files do
not match the standard. Fix that.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>

1 files changed, 13 insertions, 2 deletions

diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
index a02480be65f2..194b8fb52f0e 100644
--- a/drivers/hwmon/lm85.c
+++ b/drivers/hwmon/lm85.c
@@ -519,10 +519,21 @@ static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
 {
         int nr = to_sensor_dev_attr(attr)->index;
         struct lm85_data *data = lm85_update_device(dev);
-        int     pwm_zone;
+        int pwm_zone, enable;
 
         pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
-        return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) );
+        switch (pwm_zone) {
+        case -1:        /* PWM is always at 100% */
+                enable = 0;
+                break;
+        case 0:         /* PWM is always at 0% */
+        case -2:        /* PWM responds to manual control */
+                enable = 1;
+                break;
+        default:        /* PWM in automatic mode */
+                enable = 2;
+        }
+        return sprintf(buf, "%d\n", enable);
 }
 
 #define show_pwm_reg(offset)                                            \