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Commit 15edc1cc authored by Martin Bugge's avatar Martin Bugge Committed by Mauro Carvalho Chehab
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[media] ad9389b: trigger edid re-read by power-cycle chip 



Signed-off-by: default avatarMartin Bugge <marbugge@cisco.com>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent 7be4f888

drivers/media/i2c/ad9389b.c

+4 −3
Original line number Diff line number Diff line
@@ -855,8 +855,10 @@ static void ad9389b_edid_handler(struct work_struct *work) 
		 * (DVI connectors are particularly prone to this problem). */

		if (state->edid.read_retries) {

			state->edid.read_retries--;

			/* EDID read failed, trigger a retry */

			ad9389b_wr(sd, 0xc9, 0xf);

			v4l2_dbg(1, debug, sd, "%s: edid read failed\n", __func__);

			state->have_monitor = false;

			ad9389b_s_power(sd, false);

			ad9389b_s_power(sd, true);

			queue_delayed_work(state->work_queue,

					&state->edid_handler, EDID_DELAY);

			return;
@@ -1019,7 +1021,6 @@ static bool ad9389b_check_edid_status(struct v4l2_subdev *sd) 
	segment = ad9389b_rd(sd, 0xc4);

	if (segment >= EDID_MAX_SEGM) {

		v4l2_err(sd, "edid segment number too big\n");

		state->have_monitor = false;

		return false;

	}

	v4l2_dbg(1, debug, sd, "%s: got segment %d\n", __func__, segment);