[PATCH v2 4/6] arm64: dts: exynos7870-on7xelte: enable display panel support

Kaustabh Chakraborty kauschluss at disroot.org
Thu Jun 26 13:13:27 PDT 2025


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 1080x1920 Synaptics TD4300 display panel.

Signed-off-by: Kaustabh Chakraborty <kauschluss at disroot.org>
---
 arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts | 51 ++++++++++++++++------
 1 file changed, 38 insertions(+), 13 deletions(-)

diff --git a/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts b/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts
index eb97dcc415423f405d7df9b9869b2db3432fb483..149c72676c3c337388b1e4b631e563362750d4ee 100644
--- a/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts
@@ -27,20 +27,7 @@ aliases {
 	};
 
 	chosen {
-		#address-cells = <2>;
-		#size-cells = <1>;
-		ranges;
-
 		stdout-path = &serial2;
-
-		framebuffer at 67000000 {
-			compatible = "simple-framebuffer";
-			reg = <0x0 0x67000000 (1080 * 1920 * 4)>;
-			width = <1080>;
-			height = <1920>;
-			stride = <(1080 * 4)>;
-			format = "a8r8g8b8";
-		};
 	};
 
 	gpio-keys {
@@ -122,6 +109,44 @@ vibrator {
 	};
 };
 
+&decon {
+	status = "okay";
+};
+
+&dsi {
+	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	samsung,burst-clock-frequency = <1001000000>;
+	samsung,esc-clock-frequency = <16000000>;
+	samsung,pll-clock-frequency = <26000000>;
+
+	panel at 0 {
+		compatible = "syna,td4300-panel";
+		reg = <0>;
+
+		backlight-gpios = <&gpd3 5 GPIO_ACTIVE_LOW>;
+
+		width-mm = <68>;
+		height-mm = <121>;
+
+		panel-timing {
+			clock-frequency = <144389520>;
+
+			hactive = <1080>;
+			hsync-len = <4>;
+			hfront-porch = <120>;
+			hback-porch = <32>;
+
+			vactive = <1920>;
+			vsync-len = <2>;
+			vfront-porch = <21>;
+			vback-porch = <4>;
+		};
+	};
+};
+
 &gpu {
 	status = "okay";
 };

-- 
2.49.0




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