From a7aa874b69460896349985833059a764e688f1d0 Mon Sep 17 00:00:00 2001
From: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Date: Tue, 10 Mar 2026 00:24:57 +0800
Subject: [PATCH 1/2] riscv: dts: thead: th1520: add coefficients to the PVT
 node

The manual of TH1520 contains a set of coefficients a little different
to the driver default ones.

Add them to the device tree node of PVT.

Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Signed-off-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Reviewed-by: Drew Fustini <fustini@kernel.org>
Signed-off-by: Drew Fustini <fustini@kernel.org>
---
 arch/riscv/boot/dts/thead/th1520.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
index b66307742894..5e91dc1d2b9b 100644
--- a/arch/riscv/boot/dts/thead/th1520.dtsi
+++ b/arch/riscv/boot/dts/thead/th1520.dtsi
@@ -819,6 +819,10 @@ pvt: pvt@fffff4e000 {
 			reg-names = "common", "ts", "pd", "vm";
 			clocks = <&aonsys_clk>;
 			#thermal-sensor-cells = <1>;
+			moortec,ts-coeff-g = <42740>;
+			moortec,ts-coeff-h = <220500>;
+			moortec,ts-coeff-j = <(-160)>;
+			moortec,ts-coeff-cal5 = <4094>;
 		};
 
 		gpio@fffff52000 {

From 74ec3d52c0035b662ec295bef2bbffad68446391 Mon Sep 17 00:00:00 2001
From: Robert Mazur <robert.mazur@imgtec.com>
Date: Wed, 25 Mar 2026 09:18:59 +0100
Subject: [PATCH 2/2] riscv: dts: thead: beaglev-ahead: enable HDMI output

The BeagleV Ahead board includes a micro HDMI connector (Type-D)
wired to the TH1520 SoC's HDMI transmitter.

Enable the display pipeline by adding the HDMI connector node,
connecting it to the HDMI controller, and activating the DPU
and HDMI nodes.

Signed-off-by: Robert Mazur <robert.mazur@imgtec.com>
Signed-off-by: Drew Fustini <fustini@kernel.org>
---
 .../boot/dts/thead/th1520-beaglev-ahead.dts   | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
index 21c33f165ba9..91f3f9b987bc 100644
--- a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
+++ b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
@@ -75,6 +75,17 @@ led-5 {
 			label = "led5";
 		};
 	};
+
+	hdmi-connector {
+		compatible = "hdmi-connector";
+		type = "d";
+
+		port {
+			hdmi_con_in: endpoint {
+				remote-endpoint = <&hdmi_out_con>;
+			};
+		};
+	};
 };
 
 &osc {
@@ -236,6 +247,20 @@ &sdio0 {
 	status = "okay";
 };
 
+&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>;