linux-kernel - [PATCH 4/5] arch: arm64: dts: exynos7870-a2corelte: enable display panel support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250612-exynos7870-drm-dts-v1-4-88c0779af6cb@disroot.org>
Date: Thu, 12 Jun 2025 20:53:40 +0530
From: Kaustabh Chakraborty <kauschluss@...root.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>
Cc: Krzysztof Kozlowski <krzk@...nel.org>, devicetree@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Kaustabh Chakraborty <kauschluss@...root.org>
Subject: [PATCH 4/5] arch: arm64: dts: exynos7870-a2corelte: enable display
 panel support

Enable DECON and DSI nodes, and add the compatible display panel and
appropriate panel timings for this device. Also, disable the
simple-framebuffer node in favor of the panel.

This device has a 540x960 Synaptics TD4101 display panel.

Signed-off-by: Kaustabh Chakraborty <kauschluss@...root.org>
---
 .../arm64/boot/dts/exynos/exynos7870-a2corelte.dts | 41 ++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts b/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts
index eb7b48593187409ce6653b7d857b63f6946aa4f7..d7104d42240d408f07d4d94750307e51d34b477c 100644
--- a/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts
@@ -40,6 +40,8 @@ framebuffer@...00000 {
 			height = <960>;
 			stride = <(540 * 4)>;
 			format = "a8r8g8b8";
+
+			status = "disabled";
 		};
 	};
 
@@ -124,6 +126,45 @@ vibrator {
 	};
 };
 
+&decon {
+	status = "okay";
+};
+
+&dsi {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	samsung,burst-clock-frequency = <836000000>;
+	samsung,esc-clock-frequency = <16000000>;
+	samsung,pll-clock-frequency = <26000000>;
+
+	status = "okay";
+
+	panel@0 {
+		compatible = "syna,td4101-panel";
+		reg = <0>;
+
+		backlight-gpios = <&gpd3 7 GPIO_ACTIVE_LOW>;
+
+		width-mm = <62>;
+		height-mm = <110>;
+
+		panel-timing {
+			clock-frequency = <69336720>;
+
+			hactive = <540>;
+			hsync-len = <4>;
+			hfront-porch = <364>;
+			hback-porch = <40>;
+
+			vactive = <960>;
+			vsync-len = <2>;
+			vfront-porch = <244>;
+			vback-porch = <13>;
+		};
+	};
+};
+
 &gpu {
 	status = "okay";
 };

-- 
2.49.0