linux-kernel - [PATCH v2 6/6] arm64: dts: exynos7870-j6lte: 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: <20250627-exynos7870-drm-dts-v2-6-d4a59207390d@disroot.org>
Date: Fri, 27 Jun 2025 01:43:29 +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 v2 6/6] arm64: dts: exynos7870-j6lte: enable display panel
 support

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

This device has a 720x1480 AMOLED Samsung S6E8AA5X01 display panel.

Signed-off-by: Kaustabh Chakraborty <kauschluss@...root.org>
---
 arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts | 49 ++++++++++++++++++-------
 1 file changed, 36 insertions(+), 13 deletions(-)

diff --git a/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts b/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts
index 61eec1aff32ef397c69ee3f0cba8050755f74fc6..6d57f583d687003850f0b03bd19fa9e2f6e33332 100644
--- a/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts
@@ -27,20 +27,7 @@ aliases {
 	};
 
 	chosen {
-		#address-cells = <2>;
-		#size-cells = <1>;
-		ranges;
-
 		stdout-path = &serial2;
-
-		framebuffer@...00000 {
-			compatible = "simple-framebuffer";
-			reg = <0x0 0x67000000 (720 * 1480 * 4)>;
-			width = <720>;
-			height = <1480>;
-			stride = <(720 * 4)>;
-			format = "a8r8g8b8";
-		};
 	};
 
 	gpio-hall-effect-sensor {
@@ -133,6 +120,42 @@ vibrator {
 	};
 };
 
+&decon {
+	status = "okay";
+};
+
+&dsi {
+	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	samsung,burst-clock-frequency = <500000000>;
+	samsung,esc-clock-frequency = <16000000>;
+	samsung,pll-clock-frequency = <26000000>;
+
+	panel@0 {
+		compatible = "samsung,s6e8aa5x01";
+		reg = <0>;
+
+		width-mm = <62>;
+		height-mm = <128>;
+
+		panel-timing {
+			clock-frequency = <73094400>;
+
+			hactive = <720>;
+			hsync-len = <2>;
+			hfront-porch = <62>;
+			hback-porch = <26>;
+
+			vactive = <1480>;
+			vsync-len = <2>;
+			vfront-porch = <12>;
+			vback-porch = <10>;
+		};
+	};
+};
+
 &gpu {
 	status = "okay";
 };

-- 
2.49.0