ARM: dts: sun4i: Add device nodes for display pipelines

This change “ARM: dts: sun4i: Add device nodes for display pipelines” (commit 0df4cf3) in Linux kernel is authored by Chen-Yu Tsai <wens [at] csie.org> on Tue Oct 17 20:18:04 2017 +0800.

Description of "ARM: dts: sun4i: Add device nodes for display pipelines"

The change “ARM: dts: sun4i: Add device nodes for display pipelines” introduces changes as follows.

ARM: dts: sun4i: Add device nodes for display pipelines

The A10 has two interconnected display pipelines, much like the A31,
but without the DRCs between the backend and TCONs.

Add all the device nodes for them, including the downstream HDMI
controller that we already support.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

Linux kernel releases containing commit 0df4cf3

The Linux kernel releases containing this commit are as follows.

Linux kernel code changes from "ARM: dts: sun4i: Add device nodes for display pipelines"

There are 306 lines of Linux source code added/deleted in this change. Code changes to Linux kernel are as follows.

 arch/arm/boot/dts/sun4i-a10.dtsi | 306 +++++++++++++++++++++++++++++++
 1 file changed, 306 insertions(+)
 
diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index eb5256685de0..b91300d49a31 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -180,6 +180,12 @@
 		};
 	};
 
+	de: display-engine {
+		compatible = "allwinner,sun4i-a10-display-engine";
+		allwinner,pipelines = <&fe0>, <&fe1>;
+		status = "disabled";
+	};
+
 	soc {
 		compatible = "simple-bus";
 		#address-cells = <1>;
@@ -292,6 +298,104 @@
 			#size-cells = <0>;
 		};
 
+		tcon0: lcd-controller@1c0c000 {
+			compatible = "allwinner,sun4i-a10-tcon";
+			reg = <0x01c0c000 0x1000>;
+			interrupts = <44>;
+			resets = <&ccu RST_TCON0>;
+			reset-names = "lcd";
+			clocks = <&ccu CLK_AHB_LCD0>,
+				 <&ccu CLK_TCON0_CH0>,
+				 <&ccu CLK_TCON0_CH1>;
+			clock-names = "ahb",
+				      "tcon-ch0",
+				      "tcon-ch1";
+			clock-output-names = "tcon0-pixel-clock";
+			dmas = <&dma SUN4I_DMA_DEDICATED 14>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				tcon0_in: port@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+
+					tcon0_in_be0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&be0_out_tcon0>;
+					};
+
+					tcon0_in_be1: endpoint@1 {
+						reg = <1>;
+						remote-endpoint = <&be1_out_tcon0>;
+					};
+				};
+
+				tcon0_out: port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+
+					tcon0_out_hdmi: endpoint@1 {
+						reg = <1>;
+						remote-endpoint = <&hdmi_in_tcon0>;
+						allwinner,tcon-channel = <1>;
+					};
+				};
+			};
+		};
+
+		tcon1: lcd-controller@1c0d000 {
+			compatible = "allwinner,sun4i-a10-tcon";
+			reg = <0x01c0d000 0x1000>;
+			interrupts = <45>;
+			resets = <&ccu RST_TCON1>;
+			reset-names = "lcd";
+			clocks = <&ccu CLK_AHB_LCD1>,
+				 <&ccu CLK_TCON1_CH0>,
+				 <&ccu CLK_TCON1_CH1>;
+			clock-names = "ahb",
+				      "tcon-ch0",
+				      "tcon-ch1";
+			clock-output-names = "tcon1-pixel-clock";
+			dmas = <&dma SUN4I_DMA_DEDICATED 15>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				tcon1_in: port@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+
+					tcon1_in_be0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&be0_out_tcon1>;
+					};
+
+					tcon1_in_be1: endpoint@1 {
+						reg = <1>;
+						remote-endpoint = <&be1_out_tcon1>;
+					};
+				};
+
+				tcon1_out: port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+
+					tcon1_out_hdmi: endpoint@1 {
+						reg = <1>;
+						remote-endpoint = <&hdmi_in_tcon1>;
+						allwinner,tcon-channel = <1>;
+					};
+				};
+			};
+		};
+
 		mmc0: mmc@1c0f000 {
 			compatible = "allwinner,sun4i-a10-mmc";
 			reg = <0x01c0f000 0x1000>;
@@ -393,6 +497,48 @@
 			clock-names = "ahb", "mod";
 		};
 
+		hdmi: hdmi@1c16000 {
+			compatible = "allwinner,sun4i-a10-hdmi";
+			reg = <0x01c16000 0x1000>;
+			interrupts = <58>;
+			clocks = <&ccu CLK_AHB_HDMI0>, <&ccu CLK_HDMI>,
+				 <&ccu 9>,
+				 <&ccu 18>;
+			clock-names = "ahb", "mod", "pll-0", "pll-1";
+			dmas = <&dma SUN4I_DMA_NORMAL 16>,
+			       <&dma SUN4I_DMA_NORMAL 16>,
+			       <&dma SUN4I_DMA_DEDICATED 24>;
+			dma-names = "ddc-tx", "ddc-rx", "audio-tx";
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				hdmi_in: port@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+
+					hdmi_in_tcon0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&tcon0_out_hdmi>;
+					};
+
+					hdmi_in_tcon1: endpoint@1 {
+						reg = <1>;
+						remote-endpoint = <&tcon1_out_hdmi>;
+					};
+				};
+
+				hdmi_out: port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+				};
+			};
+		};
+
 		spi2: spi@1c17000 {
 			compatible = "allwinner,sun4i-a10-spi";
 			reg = <0x01c17000 0x1000>;
@@ -856,5 +1002,165 @@
 			clocks = <&ccu CLK_APB1_CAN>;
 			status = "disabled";
 		};
+
+		fe0: display-frontend@1e00000 {
+			compatible = "allwinner,sun4i-a10-display-frontend";
+			reg = <0x01e00000 0x20000>;
+			interrupts = <47>;
+			clocks = <&ccu CLK_AHB_DE_FE0>, <&ccu CLK_DE_FE0>,
+				 <&ccu CLK_DRAM_DE_FE0>;
+			clock-names = "ahb", "mod",
+				      "ram";
+			resets = <&ccu RST_DE_FE0>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				fe0_out: port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+
+					fe0_out_be0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&be0_in_fe0>;
+					};
+
+					fe0_out_be1: endpoint@1 {
+						reg = <1>;
+						remote-endpoint = <&be1_in_fe0>;
+					};
+				};
+			};
+		};
+
+		fe1: display-frontend@1e20000 {
+			compatible = "allwinner,sun4i-a10-display-frontend";
+			reg = <0x01e20000 0x20000>;
+			interrupts = <48>;
+			clocks = <&ccu CLK_AHB_DE_FE1>, <&ccu CLK_DE_FE1>,
+				 <&ccu CLK_DRAM_DE_FE1>;
+			clock-names = "ahb", "mod",
+				      "ram";
+			resets = <&ccu RST_DE_FE1>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				fe1_out: port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+
+					fe1_out_be0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&be0_in_fe1>;
+					};
+
+					fe1_out_be1: endpoint@1 {
+						reg = <1>;
+						remote-endpoint = <&be1_in_fe1>;
+					};
+				};
+			};
+		};
+
+		be1: display-backend@1e40000 {
+			compatible = "allwinner,sun4i-a10-display-backend";
+			reg = <0x01e40000 0x10000>;
+			interrupts = <48>;
+			clocks = <&ccu CLK_AHB_DE_BE1>, <&ccu CLK_DE_BE1>,
+				 <&ccu CLK_DRAM_DE_BE1>;
+			clock-names = "ahb", "mod",
+				      "ram";
+			resets = <&ccu RST_DE_BE1>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				be1_in: port@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+
+					be1_in_fe0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&fe0_out_be1>;
+					};
+
+					be1_in_fe1: endpoint@1 {
+						reg = <1>;
+						remote-endpoint = <&fe1_out_be1>;
+					};
+				};
+
+				be1_out: port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+
+					be1_out_tcon0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&tcon1_in_be0>;
+					};
+
+					be1_out_tcon1: endpoint@1 {
+						reg = <1>;
+						remote-endpoint = <&tcon1_in_be1>;
+					};
+				};
+			};
+		};
+
+		be0: display-backend@1e60000 {
+			compatible = "allwinner,sun4i-a10-display-backend";
+			reg = <0x01e60000 0x10000>;
+			interrupts = <47>;
+			clocks = <&ccu CLK_AHB_DE_BE0>, <&ccu CLK_DE_BE0>,
+				 <&ccu CLK_DRAM_DE_BE0>;
+			clock-names = "ahb", "mod",
+				      "ram";
+			resets = <&ccu RST_DE_BE0>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				be0_in: port@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+
+					be0_in_fe0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&fe0_out_be0>;
+					};
+
+					be0_in_fe1: endpoint@1 {
+						reg = <1>;
+						remote-endpoint = <&fe1_out_be0>;
+					};
+				};
+
+				be0_out: port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+
+					be0_out_tcon0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&tcon0_in_be0>;
+					};
+
+					be0_out_tcon1: endpoint@1 {
+						reg = <1>;
+						remote-endpoint = <&tcon1_in_be0>;
+					};
+				};
+			};
+		};
 	};
 };

The commit for this change in Linux stable tree is 0df4cf3 (patch).

Last modified: 2020/02/09