commit 64c240898eb2316dc0d703d20330a33ad3042ca6
author Dario Binacchi <dario.binacchi@amarulasolutions.com> Sun Sep 03 22:48:46 2023 +0200
committer Patrice Chotard <patrice.chotard@foss.st.com> Wed Oct 04 13:26:02 2023 +0200
tree bed4333b7f89adac7246e59ec6013d0937cb9746
parent 2d89c64643588a1f1fa9c56ad2a3c63d55d8df93

ARM: dts: stm32: add ltdc support on stm32f746 MCU

The patch applies the changes from Linux commit 008ef8b3a1a00 ("Add LTDC
(Lcd-tft Display Controller) support") and removes the same settings
from stm32f746-disco-u-boot.dtsi.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

arch/arm/dts/stm32f746-disco-u-boot.dtsi

diff --git a/arch/arm/dts/stm32f746-disco-u-boot.dtsi b/arch/arm/dts/stm32f746-disco-u-boot.dtsi
index 522cffb..3c2b9fc 100644
--- a/arch/arm/dts/stm32f746-disco-u-boot.dtsi
+++ b/arch/arm/dts/stm32f746-disco-u-boot.dtsi
@@ -63,19 +63,13 @@
 			};
 		};
 	};
-
-	soc {
-		ltdc: display-controller@40016800 {
-			compatible = "st,stm32-ltdc";
-			reg = <0x40016800 0x200>;
-			resets = <&rcc STM32F7_APB2_RESET(LTDC)>;
-			clocks = <&rcc 0 STM32F7_APB2_CLOCK(LTDC)>;
-			pinctrl-0 = <&ltdc_pins>;
+};
 
-			status = "okay";
-			bootph-all;
-		};
-	};
+&ltdc {
+	clocks = <&rcc 0 STM32F7_APB2_CLOCK(LTDC)>;
+	pinctrl-0 = <&ltdc_pins>;
+	status = "okay";
+	bootph-all;
 };
 
 &fmc {

arch/arm/dts/stm32f746.dtsi

diff --git a/arch/arm/dts/stm32f746.dtsi b/arch/arm/dts/stm32f746.dtsi
index 7b4bd80..79dad31 100644
--- a/arch/arm/dts/stm32f746.dtsi
+++ b/arch/arm/dts/stm32f746.dtsi
@@ -518,6 +518,16 @@
 			};
 		};
 
+		ltdc: display-controller@40016800 {
+			compatible = "st,stm32-ltdc";
+			reg = <0x40016800 0x200>;
+			interrupts = <88>, <89>;
+			resets = <&rcc STM32F7_APB2_RESET(LTDC)>;
+			clocks = <&rcc 1 CLK_LCD>;
+			clock-names = "lcd";
+			status = "disabled";
+		};
+
 		pwrcfg: power-config@40007000 {
 			compatible = "st,stm32-power-config", "syscon";
 			reg = <0x40007000 0x400>;