From: Krzysztof Hałasa <khalasa@piap.pl>
Date: Wed, 16 Jun 2021 05:13:55 +0000 (+0200)
Subject: media: TDA1997x: enable EDID support
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ea3e1c36e38810427485f06c2becc1f29e54521d;p=linux.git

media: TDA1997x: enable EDID support

Without this patch, the TDA19971 chip's EDID is inactive.
EDID never worked with this driver, it was all tested with HDMI signal
sources which don't need EDID support.

Signed-off-by: Krzysztof Halasa <khalasa@piap.pl>
Fixes: 9ac0038db9a7 ("media: i2c: Add TDA1997x HDMI receiver driver")
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---

diff --git a/drivers/media/i2c/tda1997x.c b/drivers/media/i2c/tda1997x.c
index 91e6db847bb5a..3a191e257fad0 100644
--- a/drivers/media/i2c/tda1997x.c
+++ b/drivers/media/i2c/tda1997x.c
@@ -2233,6 +2233,7 @@ static int tda1997x_core_init(struct v4l2_subdev *sd)
 	/* get initial HDMI status */
 	state->hdmi_status = io_read(sd, REG_HDMI_FLAGS);
 
+	io_write(sd, REG_EDID_ENABLE, EDID_ENABLE_A_EN | EDID_ENABLE_B_EN);
 	return 0;
 }