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Commit fc2e991e authored by Martin Bugge's avatar Martin Bugge Committed by Mauro Carvalho Chehab
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[media] adv7842: clear edid, if no edid just disable Edid-DDC access 



Signed-off-by: default avatarMartin Bugge <marbugge@cisco.com>
Cc: Mats Randgaard <matrandg@cisco.com>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent 5b64b205

drivers/media/i2c/adv7842.c

+5 −2
Original line number Diff line number Diff line
@@ -700,6 +700,9 @@ static int edid_write_hdmi_segment(struct v4l2_subdev *sd, u8 port) 
	/* Disable I2C access to internal EDID ram from HDMI DDC ports */

	rep_write_and_or(sd, 0x77, 0xf3, 0x00);



	if (!state->hdmi_edid.present)

		return 0;



	/* edid segment pointer '0' for HDMI ports */

	rep_write_and_or(sd, 0x77, 0xef, 0x00);
@@ -2638,8 +2641,8 @@ static int adv7842_command_ram_test(struct v4l2_subdev *sd) 
	adv7842_s_dv_timings(sd, &state->timings);



	edid_write_vga_segment(sd);

	edid_write_hdmi_segment(sd, 0);

	edid_write_hdmi_segment(sd, 1);

	edid_write_hdmi_segment(sd, ADV7842_EDID_PORT_A);

	edid_write_hdmi_segment(sd, ADV7842_EDID_PORT_B);



	return ret;

}