linux-kernel - [PATCH v2] TDA1997x: enable EDID support

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Message-ID: <m3mtrq75nw.fsf@t19.piap.pl>
Date:   Wed, 16 Jun 2021 07:13:55 +0200
From:   Krzysztof Hałasa <khalasa@...p.pl>
To:     Tim Harvey <tharvey@...eworks.com>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, lkml <linux-kernel@...r.kernel.org>
Subject: [PATCH v2] 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@...p.pl>
Fixes: 9ac0038db9a7 ("media: i2c: Add TDA1997x HDMI receiver driver")

--- 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;
 }
 

-- 
Krzysztof Hałasa

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