From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Wed, 23 Aug 2017 16:24:50 +0000 (+0200)
Subject: ARM: dts: exynos: add needs-hpd for Odroid-XU3/4
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=93a4c8355e0e448d83f31801b4c72f66e4360975;p=openwrt%2Fstaging%2Fblogic.git

ARM: dts: exynos: add needs-hpd for Odroid-XU3/4

CEC support was added for Exynos5 in 4.13, but for the Odroids we need to set
'needs-hpd' as well since CEC is disabled when there is no HDMI hotplug signal,
just as for the exynos4 Odroid-U3.

This is due to the level-shifter that is disabled when there is no HPD, thus
blocking the CEC signal as well. Same close-but-no-cigar board design as the
Odroid-U3.

Tested with my Odroid XU4.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---

diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index f92f95741207..a183b56283f8 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -266,6 +266,7 @@
 
 &hdmicec {
 	status = "okay";
+	needs-hpd;
 };
 
 &hsi2c_4 {