[v2,3/6] ARM: dts: stm32: add display support on stm32f769-disco
diff mbox series

Message ID 20250401070125.3705126-4-dario.binacchi@amarulasolutions.com
State New
Headers show
Series
  • Support NT35510 panel controller on stm32f769i-disco board
Related show

Commit Message

Dario Binacchi April 1, 2025, 7 a.m. UTC 
[backport from Linux commit 598e5adfeb6062f5d4d352c0ef888b2b29d7e215]

The patch adds display support on the stm32f769-disco board.

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

---

Changes in v2:
- Add Reviewed-by tag of Patrice Chotard

 arch/arm/dts/stm32f769-disco-u-boot.dtsi | 34 --------------
 arch/arm/dts/stm32f769-disco.dts         | 58 ++++++++++++++++++++++++
 2 files changed, 58 insertions(+), 34 deletions(-)

Patch
diff mbox series 

diff --git a/arch/arm/dts/stm32f769-disco-u-boot.dtsi b/arch/arm/dts/stm32f769-disco-u-boot.dtsi
index c5ae753debe6..16a9eecd4a99 100644
--- a/arch/arm/dts/stm32f769-disco-u-boot.dtsi
+++ b/arch/arm/dts/stm32f769-disco-u-boot.dtsi
@@ -32,18 +32,6 @@ 
 		compatible = "st,led1";
 		led-gpio = <&gpioj 5 0>;
 	};
-
-	panel: panel {
-		compatible = "orisetech,otm8009a";
-		reset-gpios = <&gpioj 15 1>;
-		status = "okay";
-
-		port {
-			panel_in: endpoint {
-				remote-endpoint = <&dsi_out>;
-			};
-		};
-	};
 };
 
 &dsi {
@@ -52,33 +40,11 @@ 
 		 <&clk_hse>;
 	clock-names = "pclk", "px_clk", "ref";
 	bootph-all;
-	status = "okay";
-
-	ports {
-		port@0 {
-			dsi_out: endpoint {
-				remote-endpoint = <&panel_in>;
-			};
-		};
-		port@1 {
-			dsi_in: endpoint {
-				remote-endpoint = <&dp_out>;
-			};
-		};
-	};
 };
 
 &ltdc {
 	clocks = <&rcc 0 STM32F7_APB2_CLOCK(LTDC)>;
 	bootph-all;
-
-	ports {
-		port@0 {
-			dp_out: endpoint {
-				remote-endpoint = <&dsi_in>;
-			};
-		};
-	};
 };
 
 &fmc {
diff --git a/arch/arm/dts/stm32f769-disco.dts b/arch/arm/dts/stm32f769-disco.dts
index b4e240a8e3eb..3fd5140ec5eb 100644
--- a/arch/arm/dts/stm32f769-disco.dts
+++ b/arch/arm/dts/stm32f769-disco.dts
@@ -24,6 +24,19 @@ 
 		reg = <0xC0000000 0x1000000>;
 	};
 
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		linux,dma {
+			compatible = "shared-dma-pool";
+			linux,dma-default;
+			no-map;
+			size = <0x100000>;
+		};
+	};
+
 	aliases {
 		serial0 = &usart1;
 	};
@@ -78,6 +91,45 @@ 
 	clock-frequency = <25000000>;
 };
 
+&dsi {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			dsi_in: endpoint {
+				remote-endpoint = <&ltdc_out_dsi>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+			dsi_out: endpoint {
+				remote-endpoint = <&dsi_panel_in>;
+			};
+		};
+	};
+
+	panel0: panel@0 {
+		compatible = "orisetech,otm8009a";
+		reg = <0>; /* dsi virtual channel (0..3) */
+		reset-gpios = <&gpioj 15 GPIO_ACTIVE_LOW>;
+		power-supply = <&vcc_3v3>;
+		status = "okay";
+
+		port {
+			dsi_panel_in: endpoint {
+				remote-endpoint = <&dsi_out>;
+			};
+		};
+	};
+};
+
 &i2c1 {
 	pinctrl-0 = <&i2c1_pins_b>;
 	pinctrl-names = "default";
@@ -88,6 +140,12 @@ 
 
 &ltdc {
 	status = "okay";
+
+	port {
+		ltdc_out_dsi: endpoint {
+			remote-endpoint = <&dsi_in>;
+		};
+	};
 };
 
 &rtc {