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+Broadcom VC4 (VideoCore4) GPU
+
+The VC4 device present on the Raspberry Pi includes a display system
+with HDMI output and the HVS (Hardware Video Scaler) for compositing
+display planes.
+
+Required properties for VC4:
+- compatible:	Should be "brcm,bcm2835-vc4"
+
+Required properties for Pixel Valve:
+- compatible:	Should be one of "brcm,bcm2835-pixelvalve0",
+		  "brcm,bcm2835-pixelvalve1", or "brcm,bcm2835-pixelvalve2"
+- reg:		Physical base address and length of the PV's registers
+- interrupts:	The interrupt number
+		  See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
+
+Required properties for HVS:
+- compatible:	Should be "brcm,bcm2835-hvs"
+- reg:		Physical base address and length of the HVS's registers
+- interrupts:	The interrupt number
+		  See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
+
+Required properties for HDMI
+- compatible:	Should be "brcm,bcm2835-hdmi"
+- reg:		Physical base address and length of the two register ranges
+		  ("HDMI" and "HD", in that order)
+- interrupts:	The interrupt numbers
+		  See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
+- ddc:		phandle of the I2C controller used for DDC EDID probing
+- clocks:	a) hdmi: The HDMI state machine clock
+		b) pixel: The pixel clock.
+
+Optional properties for HDMI:
+- hpd-gpios:	The GPIO pin for HDMI hotplug detect (if it doesn't appear
+		  as an interrupt/status bit in the HDMI controller
+		  itself).  See bindings/pinctrl/brcm,bcm2835-gpio.txt
+
+Example:
+pixelvalve@7e807000 {
+	compatible = "brcm,bcm2835-pixelvalve2";
+	reg = <0x7e807000 0x100>;
+	interrupts = <2 10>; /* pixelvalve */
+};
+
+hvs@7e400000 {
+	compatible = "brcm,bcm2835-hvs";
+	reg = <0x7e400000 0x6000>;
+	interrupts = <2 1>;
+};
+
+hdmi: hdmi@7e902000 {
+	compatible = "brcm,bcm2835-hdmi";
+	reg = <0x7e902000 0x600>,
+	      <0x7e808000 0x100>;
+	interrupts = <2 8>, <2 9>;
+	ddc = <&i2c2>;
+	hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
+	clocks = <&clocks BCM2835_PLLH_PIX>,
+		 <&clocks BCM2835_CLOCK_HSM>;
+	clock-names = "pixel", "hdmi";
+};
+
+vc4: gpu {
+	compatible = "brcm,bcm2835-vc4";
+};