ARM: dts: sun7i: Add device nodes for display pipelines

The A20 has two interconnected display pipelines, mirroring the A10.

Add all the device nodes for them, including the downstream HDMI
controller that we already support.
Signed-off-by: Jonathan Liu <net147@gmail.com>
[wens@csie.org: Squashed in HDMI and provided commit message]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun7i-a20.dtsi

@@ -228,6 +228,12 @@ gmac_tx_clk: clk@1c20164 {
 		};
 	};
 
+	de: display-engine {
+		compatible = "allwinner,sun7i-a20-display-engine";
+		allwinner,pipelines = <&fe0>, <&fe1>;
+		status = "disabled";
+	};
+
 	soc@1c00000 {
 		compatible = "simple-bus";
 		#address-cells = <1>;
@@ -346,6 +352,104 @@ mdio: mdio@1c0b080 {
 			#size-cells = <0>;
 		};
 
+		tcon0: lcd-controller@1c0c000 {
+			compatible = "allwinner,sun7i-a20-tcon";
+			reg = <0x01c0c000 0x1000>;
+			interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+			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,sun7i-a20-tcon";
+			reg = <0x01c0d000 0x1000>;
+			interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+			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,sun7i-a20-mmc";
 			reg = <0x01c0f000 0x1000>;
@@ -470,6 +574,49 @@ crypto: crypto-engine@1c15000 {
 			clock-names = "ahb", "mod";
 		};
 
+		hdmi: hdmi@1c16000 {
+			compatible = "allwinner,sun7i-a20-hdmi",
+				     "allwinner,sun5i-a10s-hdmi";
+			reg = <0x01c16000 0x1000>;
+			interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
+			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>;
@@ -1104,5 +1251,165 @@ gic: interrupt-controller@1c81000 {
 			#interrupt-cells = <3>;
 			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
 		};
+
+		fe0: display-frontend@1e00000 {
+			compatible = "allwinner,sun7i-a20-display-frontend";
+			reg = <0x01e00000 0x20000>;
+			interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+			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,sun7i-a20-display-frontend";
+			reg = <0x01e20000 0x20000>;
+			interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+			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,sun7i-a20-display-backend";
+			reg = <0x01e40000 0x10000>;
+			interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+			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,sun7i-a20-display-backend";
+			reg = <0x01e60000 0x10000>;
+			interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+			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>;
+					};
+				};
+			};
+		};
 	};
 };