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Make HDMI To Work On All Distros Reliably #1

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opened 2024-02-22 00:31:11 +01:00 by kreyren · 0 comments
kreyren commented 2024-02-22 00:31:11 +01:00
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Requires the following or alike addition to the DTS:

hdmi-connector {
		compatible = "hdmi-connector";
		type = "c";

		port {
			hdmi_con_in: endpoint {
				remote-endpoint = <&hdmi_out_con>;
			};
		};
	};

Reference: https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/allwinner/sun50i-a64-pinetab.dts#L39

Suggested by apritzel of sunxi-linux

To be tested:

From 64b9bb446fae4b83f482b2cb43812454e420d4f3 Mon Sep 17 00:00:00 2001
From: REDACTED
Date: Thu, 22 Feb 2024 00:04:10 +0100
Subject: [PATCH] Temporary debug patch (--amend later) for HDMI

---
 .../boot/dts/allwinner/sun50i-a64-teres-i.dts | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts
index 1128030e4c25..42b5be01b87d 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts
@@ -20,6 +20,18 @@ aliases {
 		serial0 = &uart0;
 	};
 
+	hdmi-connector {
+		compatible = "hdmi-connector";
+		type = "c";
+
+		port {
+			hdmi_con_in: endpoint {
+				remote-endpoint = <&hdmi_out_con>;
+			};
+		};
+	};
+
+
 	backlight: backlight {
 		compatible = "pwm-backlight";
 		pwms = <&pwm 0 50000 0>;
@@ -343,6 +355,18 @@ &simplefb_hdmi {
 	vcc-hdmi-supply = <&reg_dldo1>;
 };
 
+&hdmi {
+	hvcc-supply = <&reg_dldo1>;
+	status = "okay";
+};
+
+&hdmi_out {
+	hdmi_out_con: endpoint {
+		remote-endpoint = <&hdmi_con_in>;
+	};
+};
+
+
 &sound {
 	simple-audio-card,aux-devs = <&codec_analog>, <&speaker_amp>;
 	simple-audio-card,widgets = "Headphone", "Headphone Jack",
-- 
2.43.2

This patch is insufficient on UEFI assuming that the linux kernel is built without dtbs makeflag and instead will pull the dtb from u-boot

Requires the following or alike addition to the DTS: ``` hdmi-connector { compatible = "hdmi-connector"; type = "c"; port { hdmi_con_in: endpoint { remote-endpoint = <&hdmi_out_con>; }; }; }; ``` Reference: https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/allwinner/sun50i-a64-pinetab.dts#L39 Suggested by apritzel of sunxi-linux --- To be tested: ``` From 64b9bb446fae4b83f482b2cb43812454e420d4f3 Mon Sep 17 00:00:00 2001 From: REDACTED Date: Thu, 22 Feb 2024 00:04:10 +0100 Subject: [PATCH] Temporary debug patch (--amend later) for HDMI --- .../boot/dts/allwinner/sun50i-a64-teres-i.dts | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts index 1128030e4c25..42b5be01b87d 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-teres-i.dts @@ -20,6 +20,18 @@ aliases { serial0 = &uart0; }; + hdmi-connector { + compatible = "hdmi-connector"; + type = "c"; + + port { + hdmi_con_in: endpoint { + remote-endpoint = <&hdmi_out_con>; + }; + }; + }; + + backlight: backlight { compatible = "pwm-backlight"; pwms = <&pwm 0 50000 0>; @@ -343,6 +355,18 @@ &simplefb_hdmi { vcc-hdmi-supply = <&reg_dldo1>; }; +&hdmi { + hvcc-supply = <&reg_dldo1>; + status = "okay"; +}; + +&hdmi_out { + hdmi_out_con: endpoint { + remote-endpoint = <&hdmi_con_in>; + }; +}; + + &sound { simple-audio-card,aux-devs = <&codec_analog>, <&speaker_amp>; simple-audio-card,widgets = "Headphone", "Headphone Jack", -- 2.43.2 ``` This patch is insufficient on UEFI assuming that the linux kernel is built without `dtbs` makeflag and instead will pull the dtb from u-boot
kreyren added this to the Maintanance milestone 2024-02-22 13:43:54 +01:00
kreyren changed title from Make HDMI to work to Make HDMI To Work On All Distros Reliably 2024-02-22 13:44:17 +01:00
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Reference: KREYLIMEX/TERES#1