hwmon: (applesmc) Skip sensor mapping

The special motion sensor mapping is unnecessary; remove it.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 2cde9ec..0162f55 100644 (file)
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -96,10 +96,6 @@ static const char *const fan_speed_fmt[] = {
 #define APPLESMC_INPUT_FUZZ    4       /* input event threshold */
 #define APPLESMC_INPUT_FLAT    4
 
-#define SENSOR_X 0
-#define SENSOR_Y 1
-#define SENSOR_Z 2
-
 #define to_index(attr) (to_sensor_dev_attr(attr)->index & 0xffff)
 #define to_option(attr) (to_sensor_dev_attr(attr)->index >> 16)
 
@@ -432,30 +428,19 @@ static int applesmc_has_key(const char *key, bool *value)
 }
 
 /*
- * applesmc_read_motion_sensor - Read motion sensor (X, Y or Z).
+ * applesmc_read_s16 - Read 16-bit signed big endian register
  */
-static int applesmc_read_motion_sensor(int index, s16 *value)
+static int applesmc_read_s16(const char *key, s16 *value)
 {
        u8 buffer[2];
        int ret;
 
-       switch (index) {
-       case SENSOR_X:
-               ret = applesmc_read_key(MOTION_SENSOR_X_KEY, buffer, 2);
-               break;
-       case SENSOR_Y:
-               ret = applesmc_read_key(MOTION_SENSOR_Y_KEY, buffer, 2);
-               break;
-       case SENSOR_Z:
-               ret = applesmc_read_key(MOTION_SENSOR_Z_KEY, buffer, 2);
-               break;
-       default:
-               ret = -EINVAL;
-       }
+       ret = applesmc_read_key(key, buffer, 2);
+       if (ret)
+               return ret;
 
        *value = ((s16)buffer[0] << 8) | buffer[1];
-
-       return ret;
+       return 0;
 }
 
 /*
@@ -624,8 +609,8 @@ static struct platform_driver applesmc_driver = {
  */
 static void applesmc_calibrate(void)
 {
-       applesmc_read_motion_sensor(SENSOR_X, &rest_x);
-       applesmc_read_motion_sensor(SENSOR_Y, &rest_y);
+       applesmc_read_s16(MOTION_SENSOR_X_KEY, &rest_x);
+       applesmc_read_s16(MOTION_SENSOR_Y_KEY, &rest_y);
        rest_x = -rest_x;
 }
 
@@ -634,9 +619,9 @@ static void applesmc_idev_poll(struct input_polled_dev *dev)
        struct input_dev *idev = dev->input;
        s16 x, y;
 
-       if (applesmc_read_motion_sensor(SENSOR_X, &x))
+       if (applesmc_read_s16(MOTION_SENSOR_X_KEY, &x))
                return;
-       if (applesmc_read_motion_sensor(SENSOR_Y, &y))
+       if (applesmc_read_s16(MOTION_SENSOR_Y_KEY, &y))
                return;
 
        x = -x;
@@ -659,13 +644,13 @@ static ssize_t applesmc_position_show(struct device *dev,
        int ret;
        s16 x, y, z;
 
-       ret = applesmc_read_motion_sensor(SENSOR_X, &x);
+       ret = applesmc_read_s16(MOTION_SENSOR_X_KEY, &x);
        if (ret)
                goto out;
-       ret = applesmc_read_motion_sensor(SENSOR_Y, &y);
+       ret = applesmc_read_s16(MOTION_SENSOR_Y_KEY, &y);
        if (ret)
                goto out;
-       ret = applesmc_read_motion_sensor(SENSOR_Z, &z);
+       ret = applesmc_read_s16(MOTION_SENSOR_Z_KEY, &z);
        if (ret)
                goto out;