linux-kernel - Re: [PATCH v4 7/9] riscv: dts: thead: lichee-pi-4a: enable HDMI

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Message-Id: <EEB07B95-C9D7-4B8B-9FAD-105A0287CC6F@gmail.com>
Date: Thu, 25 Dec 2025 17:47:04 +0800
From: "Han Gao (Revy)" <rabenda.cn@...il.com>
To: Icenowy Zheng <zhengxingda@...as.ac.cn>
Cc: "Han Gao (Revy)" <rabenda.cn@...il.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>,
 Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>,
 Simona Vetter <simona@...ll.ch>,
 Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Drew Fustini <fustini@...nel.org>,
 Guo Ren <guoren@...nel.org>,
 Fu Wei <wefu@...hat.com>,
 Philipp Zabel <p.zabel@...gutronix.de>,
 Heiko Stuebner <heiko@...ech.de>,
 Andrzej Hajda <andrzej.hajda@...el.com>,
 Neil Armstrong <neil.armstrong@...aro.org>,
 Robert Foss <rfoss@...nel.org>,
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
 Jonas Karlman <jonas@...boo.se>,
 Jernej Skrabec <jernej.skrabec@...il.com>,
 Michal Wilczynski <m.wilczynski@...sung.com>,
 Yao Zi <ziyao@...root.org>,
 dri-devel@...ts.freedesktop.org,
 devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org,
 linux-riscv@...ts.infradead.org,
 Icenowy Zheng <uwu@...nowy.me>
Subject: Re: [PATCH v4 7/9] riscv: dts: thead: lichee-pi-4a: enable HDMI



> On Dec 25, 2025, at 00:12, Icenowy Zheng <zhengxingda@...as.ac.cn> wrote:
> 
> Lichee Pi 4A board features a HDMI Type-A connector connected to the
> HDMI TX controller of TH1520 SoC.
> 
> Add a device tree node describing the connector, connect it to the HDMI
> controller, and enable everything on this display pipeline.
> 
> Signed-off-by: Icenowy Zheng <uwu@...nowy.me>
> Signed-off-by: Icenowy Zheng <zhengxingda@...as.ac.cn>
> ---
> Changes in v4:
> - Rebased on top of v6.19-rc1.
> 
> No changes in v2, v3.
> 
> .../boot/dts/thead/th1520-lichee-pi-4a.dts    | 25 +++++++++++++++++++
> 1 file changed, 25 insertions(+)
> 
> diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
> index c58c2085ca92a..7cb7d28683bce 100644
> --- a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
> +++ b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
> @@ -29,6 +29,17 @@ chosen {
> stdout-path = "serial0:115200n8";
> };
> 
> + hdmi-connector {
> + compatible = "hdmi-connector";
> + type = "a";
> +
> + port {
> + hdmi_con_in: endpoint {
> + remote-endpoint = <&hdmi_out_con>;
> + };
> + };
> + };
> +
> thermal-zones {
> cpu-thermal {
> polling-delay = <1000>;
> @@ -121,6 +132,20 @@ rx-pins {
> };
> };
> 
> +&dpu {
> + status = "okay";
> +};
> +
> +&hdmi {
> + status = "okay";
> +};
> +
> +&hdmi_out_port {
> + hdmi_out_con: endpoint {
> + remote-endpoint = <&hdmi_con_in>;
> + };
> +};
> +
> &uart0 {
> pinctrl-names = "default";
> pinctrl-0 = <&uart0_pins>;
> -- 
> 2.52.0
> 
Tested-by: Han Gao <gaohan@...as.ac.cn>