arm64: dts: meson-g12: 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, based on the GXBB/GXL/GXM
support at [1].

[1] 03b370357907 ("arm64: dts: meson-gx: add support for simplef")

Cc: Maxime Jourdan <[e-mail]>
Signed-off-by: Neil Armstrong <[e-mail]>
Reviewed-by: Kevin Hilman <[e-mail]>
Signed-off-by: Kevin Hilman <[e-mail]>

arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi

···
 	#address-cells = <2>;
 	#size-cells = <2>;
 
+	chosen {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		simplefb_cvbs: framebuffer-cvbs {
+			compatible = "amlogic,simple-framebuffer",
+				     "simple-framebuffer";
+			amlogic,pipeline = "vpu-cvbs";
+			clocks = <&clkc CLKID_HDMI>,
+				 <&clkc CLKID_HTX_PCLK>,
+				 <&clkc CLKID_VPU_INTR>;
+			status = "disabled";
+		};
+
+		simplefb_hdmi: framebuffer-hdmi {
+			compatible = "amlogic,simple-framebuffer",
+				    "simple-framebuffer";
+			amlogic,pipeline = "vpu-hdmi";
+			clocks = <&clkc CLKID_HDMI>,
+				 <&clkc CLKID_HTX_PCLK>,
+				 <&clkc CLKID_VPU_INTR>;
+			status = "disabled";
+		};
+	};
+
 	efuse: efuse {
 		compatible = "amlogic,meson-gxbb-efuse";
 		clocks = <&clkc CLKID_EFUSE>;

arch/arm64/boot/dts/amlogic/meson-g12.dtsi

···
 &sd_emmc_a {
 	amlogic,dram-access-quirk;
 };
+
+&simplefb_cvbs {
+	power-domains = <&pwrc PWRC_G12A_VPU_ID>;
+};
+
+&simplefb_hdmi {
+	power-domains = <&pwrc PWRC_G12A_VPU_ID>;
+};

arch/arm64/boot/dts/amlogic/meson-sm1.dtsi

···
 	compatible = "amlogic,meson-sm1-pwrc";
 };
 
+&simplefb_cvbs {
+	power-domains = <&pwrc PWRC_SM1_VPU_ID>;
+};
+
+&simplefb_hdmi {
+	power-domains = <&pwrc PWRC_SM1_VPU_ID>;
+};
+
 &vpu {
 	power-domains = <&pwrc PWRC_SM1_VPU_ID>;
 };