[PATCH 1/6] ARM: dts: stm32: add DSI support on stm32f769

[Dario Binacchi]

[backport from Linux commit a995fd2e8b3c6defd1dcdd3fb350c224e41ea1d0]

Add support for MIPI DSI Host controller. Since MIPI DSI is not
available on stm32f746, the patch adds the "stm32f769.dtsi" file
containing the dsi node inside.

Signed-off-by: Dario Binacchi <dario.binacchi at amarulasolutions.com>
---

 arch/arm/dts/stm32f769-disco-u-boot.dtsi | 41 +++++++++++-------------
 arch/arm/dts/stm32f769-disco.dts         |  2 +-
 arch/arm/dts/stm32f769.dtsi              | 20 ++++++++++++
 3 files changed, 39 insertions(+), 24 deletions(-)
 create mode 100644 arch/arm/dts/stm32f769.dtsi

diff --git a/arch/arm/dts/stm32f769-disco-u-boot.dtsi b/arch/arm/dts/stm32f769-disco-u-boot.dtsi
index add55c96e21f..c5ae753debe6 100644
--- a/arch/arm/dts/stm32f769-disco-u-boot.dtsi
+++ b/arch/arm/dts/stm32f769-disco-u-boot.dtsi
@@ -44,30 +44,25 @@
 			};
 		};
 	};
+};
 
-	soc {
-		dsi: dsi at 40016c00 {
-			compatible = "st,stm32-dsi";
-			reg = <0x40016c00 0x800>;
-			resets = <&rcc STM32F7_APB2_RESET(DSI)>;
-			clocks = <&rcc 0 STM32F7_APB2_CLOCK(DSI)>,
-				  <&rcc 0 STM32F7_APB2_CLOCK(LTDC)>,
-				  <&clk_hse>;
-			clock-names = "pclk", "px_clk", "ref";
-			bootph-all;
-			status = "okay";
-
-			ports {
-				port at 0 {
-					dsi_out: endpoint {
-						remote-endpoint = <&panel_in>;
-					};
-				};
-				port at 1 {
-					dsi_in: endpoint {
-						remote-endpoint = <&dp_out>;
-					};
-				};
+&dsi {
+	clocks = <&rcc 0 STM32F7_APB2_CLOCK(DSI)>,
+		 <&rcc 0 STM32F7_APB2_CLOCK(LTDC)>,
+		 <&clk_hse>;
+	clock-names = "pclk", "px_clk", "ref";
+	bootph-all;
+	status = "okay";
+
+	ports {
+		port at 0 {
+			dsi_out: endpoint {
+				remote-endpoint = <&panel_in>;
+			};
+		};
+		port at 1 {
+			dsi_in: endpoint {
+				remote-endpoint = <&dp_out>;
 			};
 		};
 	};
diff --git a/arch/arm/dts/stm32f769-disco.dts b/arch/arm/dts/stm32f769-disco.dts
index d63cd2ba7eb4..ad1b442055e1 100644
--- a/arch/arm/dts/stm32f769-disco.dts
+++ b/arch/arm/dts/stm32f769-disco.dts
@@ -5,7 +5,7 @@
  */
 
 /dts-v1/;
-#include "stm32f746.dtsi"
+#include "stm32f769.dtsi"
 #include "stm32f769-pinctrl.dtsi"
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/gpio.h>
diff --git a/arch/arm/dts/stm32f769.dtsi b/arch/arm/dts/stm32f769.dtsi
new file mode 100644
index 000000000000..4e7d9032149c
--- /dev/null
+++ b/arch/arm/dts/stm32f769.dtsi
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023 Dario Binacchi <dario.binacchi at amarulasolutions.com>
+ */
+
+#include "stm32f746.dtsi"
+
+/ {
+	soc {
+		dsi: dsi at 40016c00 {
+			compatible = "st,stm32-dsi";
+			reg = <0x40016c00 0x800>;
+			clocks = <&rcc 1 CLK_F769_DSI>, <&clk_hse>;
+			clock-names = "pclk", "ref";
+			resets = <&rcc STM32F7_APB2_RESET(DSI)>;
+			reset-names = "apb";
+			status = "disabled";
+		};
+	};
+};
-- 
2.43.0