Просмотр исходного кода

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>
Viorel Suman 10 лет назад
Родитель
Сommit
354c879dbd
1 измененных файлов с 4 добавлено и 3 удалено
  1. 4 3
      drivers/iio/magnetometer/mmc35240.c

+ 4 - 3
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;