From: Hans Verkuil <hverkuil@xxxxxxxxx>
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@xxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
---
Hi Arnd, Olof,
One fix for this cycle (v4.13) for feature (HDMI CEC) added in v4.13. Patch
is necessary for this feature to work on Odroid XU3/XU4 family.
Best regards,
Krzysztof
---
arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 1 +
1 file changed, 1 insertion(+)
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 {
--
2.11.0
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