ARM: dts: imx5: add gpu nodes

This adds the gpu nodes for the adreno 200 GPU on iMX51 and iMX53, now
supported by the freedreno driver.

The compatible for the iMX51 uses a patchid of 1, which is used by drm/msm
driver to identify the smaller 128KiB GMEM size.

Signed-off-by: Jonathan Marek <[e-mail]>
Reviewed-by: Fabio Estevam <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

arch/arm/boot/dts/imx51.dtsi

···
 			reg = <0x1ffe0000 0x20000>;
 		};
 
+		gpu: gpu@30000000 {
+			compatible = "amd,imageon-200.1", "amd,imageon";
+			reg = <0x30000000 0x20000>;
+			reg-names = "kgsl_3d0_reg_memory";
+			interrupts = <12>;
+			interrupt-names = "kgsl_3d0_irq";
+			clocks = <&clks IMX5_CLK_GPU3D_GATE>, <&clks IMX5_CLK_GARB_GATE>;
+			clock-names = "core_clk", "mem_iface_clk";
+		};
+
 		ipu: ipu@40000000 {
 			#address-cells = <1>;
 			#size-cells = <0>;

arch/arm/boot/dts/imx53.dtsi

···
 			};
 		};
 
+		gpu: gpu@30000000 {
+			compatible = "amd,imageon-200.0", "amd,imageon";
+			reg = <0x30000000 0x20000>;
+			reg-names = "kgsl_3d0_reg_memory";
+			interrupts = <12>;
+			interrupt-names = "kgsl_3d0_irq";
+			clocks = <&clks IMX5_CLK_GPU3D_GATE>, <&clks IMX5_CLK_GARB_GATE>;
+			clock-names = "core_clk", "mem_iface_clk";
+		};
+
 		aips@50000000 { /* AIPS1 */
 			compatible = "fsl,aips-bus", "simple-bus";
 			#address-cells = <1>;