From: "Krzysztof Hałasa" <khalasa@piap.pl>
To: Tim Harvey <tharvey@gateworks.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>,
linux-media@vger.kernel.org, lkml <linux-kernel@vger.kernel.org>
Subject: [PATCH v2] TDA1997x: enable EDID support
Date: Wed, 16 Jun 2021 07:13:55 +0200 [thread overview]
Message-ID: <m3mtrq75nw.fsf@t19.piap.pl> (raw)
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")
--- 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
Sieć Badawcza Łukasiewicz
Przemysłowy Instytut Automatyki i Pomiarów PIAP
Al. Jerozolimskie 202, 02-486 Warszawa
reply other threads:[~2021-06-16 5:14 UTC|newest]
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