ARM: dts: sun7i: Add DRAM gates

The DRAM gates controls direct memory access for some peripherals.
These peripherals include the display pipeline, so add the required
gates to the simplefb nodes as well.
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

@@ -68,7 +68,7 @@ framebuffer@0 {
 				     "simple-framebuffer";
 			allwinner,pipeline = "de_be0-lcd0-hdmi";
 			clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 43>,
-				 <&ahb_gates 44>;
+				 <&ahb_gates 44>, <&dram_gates 26>;
 			status = "disabled";
 		};
 
@@ -76,7 +76,8 @@ framebuffer@1 {
 			compatible = "allwinner,simple-framebuffer",
 				     "simple-framebuffer";
 			allwinner,pipeline = "de_be0-lcd0";
-			clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 44>;
+			clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 44>,
+				 <&dram_gates 26>;
 			status = "disabled";
 		};
 
@@ -85,7 +86,7 @@ framebuffer@2 {
 				     "simple-framebuffer";
 			allwinner,pipeline = "de_be0-lcd0-tve0";
 			clocks = <&pll5 1>, <&ahb_gates 34>, <&ahb_gates 36>,
-				 <&ahb_gates 44>;
+				 <&ahb_gates 44>, <&dram_gates 26>;
 			status = "disabled";
 		};
 	};
@@ -501,6 +502,31 @@ spi3_clk: clk@01c200d4 {
 			clock-output-names = "spi3";
 		};
 
+		dram_gates: clk@01c20100 {
+			#clock-cells = <1>;
+			compatible = "allwinner,sun4i-a10-dram-gates-clk";
+			reg = <0x01c20100 0x4>;
+			clocks = <&pll5 0>;
+			clock-indices = <0>,
+					<1>, <2>,
+					<3>,
+					<4>,
+					<5>, <6>,
+					<15>,
+					<24>, <25>,
+					<26>, <27>,
+					<28>, <29>;
+			clock-output-names = "dram_ve",
+					     "dram_csi0", "dram_csi1",
+					     "dram_ts",
+					     "dram_tvd",
+					     "dram_tve0", "dram_tve1",
+					     "dram_output",
+					     "dram_de_fe1", "dram_de_fe0",
+					     "dram_de_be0", "dram_de_be1",
+					     "dram_de_mp", "dram_ace";
+		};
+
 		codec_clk: clk@01c20140 {
 			#clock-cells = <0>;
 			compatible = "allwinner,sun4i-a10-codec-clk";