arm64: dts: meson-gx: add support for simplefb

SimpleFB allows transferring a framebuffer from the firmware/bootloader
to the kernel, while making sure the related clocks and power supplies
stay enabled.

Add nodes for CVBS and HDMI Simple Framebuffers.
Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm64/boot/dts/amlogic/meson-gx.dtsi

@@ -50,6 +50,28 @@ linux,cma {
 		};
 	};
 
+	chosen {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		simplefb_cvbs: framebuffer-cvbs {
+			compatible = "amlogic,simple-framebuffer",
+				     "simple-framebuffer";
+			amlogic,pipeline = "vpu-cvbs";
+			power-domains = <&pwrc_vpu>;
+			status = "disabled";
+		};
+
+		simplefb_hdmi: framebuffer-hdmi {
+			compatible = "amlogic,simple-framebuffer",
+				     "simple-framebuffer";
+			amlogic,pipeline = "vpu-hdmi";
+			power-domains = <&pwrc_vpu>;
+			status = "disabled";
+		};
+	};
+
 	cpus {
 		#address-cells = <0x2>;
 		#size-cells = <0x0>;

arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi

@@ -784,6 +784,12 @@ &sd_emmc_c {
 	resets = <&reset RESET_SD_EMMC_C>;
 };
 
+&simplefb_hdmi {
+	clocks = <&clkc CLKID_HDMI_PCLK>,
+		 <&clkc CLKID_CLK81>,
+		 <&clkc CLKID_GCLK_VENCI_INT0>;
+};
+
 &spicc {
 	clocks = <&clkc CLKID_SPICC>;
 	clock-names = "core";

arch/arm64/boot/dts/amlogic/meson-gxl.dtsi

@@ -787,6 +787,12 @@ &sd_emmc_c {
 	resets = <&reset RESET_SD_EMMC_C>;
 };
 
+&simplefb_hdmi {
+	clocks = <&clkc CLKID_HDMI_PCLK>,
+		 <&clkc CLKID_CLK81>,
+		 <&clkc CLKID_GCLK_VENCI_INT0>;
+};
+
 &spicc {
 	clocks = <&clkc CLKID_SPICC>;
 	clock-names = "core";