linux-kernel - Re: [PATCH v2 8/9] arm64: dts: rockchip: Enable HDMI output on RK3368-Lion-Haikou

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Message-ID: <50d9a41c-d35b-4489-af1e-a5f7eef303f1@cherry.de>
Date: Tue, 2 Dec 2025 11:41:43 +0100
From: Quentin Schulz <quentin.schulz@...rry.de>
To: Heiko Stuebner <heiko@...ech.de>
Cc: maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
 tzimmermann@...e.de, robh@...nel.org, krzk+dt@...nel.org,
 conor+dt@...nel.org, andy.yan@...k-chips.com,
 dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
 linux-kernel@...r.kernel.org, cn.liweihao@...il.com,
 Heiko Stuebner <heiko.stuebner@...rry.de>
Subject: Re: [PATCH v2 8/9] arm64: dts: rockchip: Enable HDMI output on
 RK3368-Lion-Haikou

Hi Heiko,

On 10/21/25 9:42 AM, Heiko Stuebner wrote:
> From: Heiko Stuebner <heiko.stuebner@...rry.de>
> 
> Enable the VOP and HDMI controller on the Lion-Haikou board.
> 
> Signed-off-by: Heiko Stuebner <heiko.stuebner@...rry.de>
> ---
>   .../boot/dts/rockchip/rk3368-lion-haikou.dts   | 18 ++++++++++++++++++
>   1 file changed, 18 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3368-lion-haikou.dts b/arch/arm64/boot/dts/rockchip/rk3368-lion-haikou.dts
> index abd1af97456a..a8eb4e9c2778 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3368-lion-haikou.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3368-lion-haikou.dts
> @@ -58,6 +58,16 @@ vcc5v0_otg: regulator-vcc5v0-otg {
>   	};
>   };
>   
> +&display_subsystem {
> +	status = "okay";
> +};
> +
> +&hdmi {
> +	avdd-0v9-supply = <&vdd10_video>;
> +	avdd-1v8-supply = <&vcc18_video>;

After a long night of sleep, I believe this should be specified in 
rk3368-lion.dtsi SoM DTSI and not in rk3368-lion-haikou.dts as it's 
SoM-specific.

Cheers,
Quentin