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

From: Kaustabh Chakraborty
Date: Thu Jun 12 2025 - 11:34:12 EST


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@xxxxxxxxxxx>
---
.../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@67000000 {
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