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Commit 354c879d authored by Viorel Suman's avatar Viorel Suman Committed by Jonathan Cameron
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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: default avatarViorel Suman <viorel.suman@intel.com>
Signed-off-by: default avatarDaniel Baluta <daniel.baluta@intel.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 3ceaa2c2

drivers/iio/magnetometer/mmc35240.c

+4 −3
Original line number Diff line number Diff line
@@ -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;