[PATCH v2 09/13] arm64: dts: st: add ltdc support on stm32mp251
Raphael Gallais-Pou
raphael.gallais-pou at foss.st.com
Tue Aug 12 13:49:06 UTC 2025
The LCD-TFT Display Controller (LTDC) handles display composition,
scaling and rotation. It provides a parallel digital RGB flow to be
used by display interfaces.
Add the LTDC node.
Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou at foss.st.com>
---
arch/arm64/boot/dts/st/stm32mp251.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index 8d87865850a7a6e8095c36acdef83c8e3a73ae54..6e8f76aa4680d5c253bae882edc455f4e95413f3 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -1052,6 +1052,18 @@ dcmipp: dcmipp at 48030000 {
status = "disabled";
};
+ ltdc: display-controller at 48010000 {
+ compatible = "st,stm32mp251-ltdc";
+ reg = <0x48010000 0x400>;
+ interrupts = <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&rcc CK_KER_LTDC>, <&rcc CK_BUS_LTDC>;
+ clock-names = "lcd", "bus";
+ resets = <&rcc LTDC_R>;
+ access-controllers = <&rifsc 80>;
+ status = "disabled";
+ };
+
combophy: phy at 480c0000 {
compatible = "st,stm32mp25-combophy";
reg = <0x480c0000 0x1000>;
--
2.25.1
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