iio: magnetometer: mmc35240: fix SET/RESET sequence

The RESET operation invoked in the last instance will align
in the natural way all 3 axis and the chip top view.

Without this, north and south are swapped.

Signed-off-by: Viorel Suman <viorel.suman@intel.com>
Signed-off-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/magnetometer/mmc35240.c b/drivers/iio/magnetometer/mmc35240.c
index e9dfa0e..706ebfd 100644 (file)
--- a/drivers/iio/magnetometer/mmc35240.c
+++ b/drivers/iio/magnetometer/mmc35240.c
@@ -222,14 +222,15 @@ static int mmc35240_init(struct mmc35240_data *data)
 
        /*
         * make sure we restore sensor characteristics, by doing
-        * a RESET/SET sequence
+        * a SET/RESET sequence, the axis polarity being naturally
+        * aligned after RESET
         */
-       ret = mmc35240_hw_set(data, false);
+       ret = mmc35240_hw_set(data, true);
        if (ret < 0)
                return ret;
        usleep_range(MMC53240_WAIT_SET_RESET, MMC53240_WAIT_SET_RESET + 1);
 
-       ret = mmc35240_hw_set(data, true);
+       ret = mmc35240_hw_set(data, false);
        if (ret < 0)
                return ret;