From 3047444def125d9e1fb788541e8dc18a7058a47a Mon Sep 17 00:00:00 2001 From: Jernej Skrabec Date: Sat, 20 Nov 2021 08:34:47 +0100 Subject: [PATCH] arm64: dts: allwinner: a64: Add CEC clock to HDMI Experimentation determined that HDMI CEC controller inside DW HDMI block depends on 32k clock from RTC. If this clock is tampered with, HDMI CEC communication starts or stops working, depending on situation. SoC user manual doesn't say anything about CEC, so this was overlooked. Fix this by adding dependency to RTC 32k clock. Signed-off-by: Jernej Skrabec Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20211120073448.32480-2-jernej.skrabec@gmail.com --- arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi index 5ba379078500f..741bd19fa8ec2 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi @@ -1220,8 +1220,8 @@ reg-io-width = <1>; interrupts = ; clocks = <&ccu CLK_BUS_HDMI>, <&ccu CLK_HDMI_DDC>, - <&ccu CLK_HDMI>; - clock-names = "iahb", "isfr", "tmds"; + <&ccu CLK_HDMI>, <&rtc 0>; + clock-names = "iahb", "isfr", "tmds", "cec"; resets = <&ccu RST_BUS_HDMI1>; reset-names = "ctrl"; phys = <&hdmi_phy>; -- 2.30.2