1 Broadcom VC4 (VideoCore4) GPU
3 The VC4 device present on the Raspberry Pi includes a display system
4 with HDMI output and the HVS (Hardware Video Scaler) for compositing
7 Required properties for VC4:
8 - compatible: Should be "brcm,bcm2835-vc4"
10 Required properties for Pixel Valve:
11 - compatible: Should be one of "brcm,bcm2835-pixelvalve0",
12 "brcm,bcm2835-pixelvalve1", or "brcm,bcm2835-pixelvalve2"
13 - reg: Physical base address and length of the PV's registers
14 - interrupts: The interrupt number
15 See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
17 Required properties for HVS:
18 - compatible: Should be "brcm,bcm2835-hvs"
19 - reg: Physical base address and length of the HVS's registers
20 - interrupts: The interrupt number
21 See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
23 Required properties for HDMI
24 - compatible: Should be "brcm,bcm2835-hdmi"
25 - reg: Physical base address and length of the two register ranges
26 ("HDMI" and "HD", in that order)
27 - interrupts: The interrupt numbers
28 See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
29 - ddc: phandle of the I2C controller used for DDC EDID probing
30 - clocks: a) hdmi: The HDMI state machine clock
31 b) pixel: The pixel clock.
33 Optional properties for HDMI:
34 - hpd-gpios: The GPIO pin for HDMI hotplug detect (if it doesn't appear
35 as an interrupt/status bit in the HDMI controller
36 itself). See bindings/pinctrl/brcm,bcm2835-gpio.txt
38 Required properties for DPI:
39 - compatible: Should be "brcm,bcm2835-dpi"
40 - reg: Physical base address and length of the registers
41 - clocks: a) core: The core clock the unit runs on
42 b) pixel: The pixel clock that feeds the pixelvalve
43 - port: Port node with a single endpoint connecting to the panel
44 device, as defined in [1]
46 Required properties for VEC:
47 - compatible: Should be "brcm,bcm2835-vec"
48 - reg: Physical base address and length of the registers
49 - clocks: The core clock the unit runs on
50 - interrupts: The interrupt number
51 See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
53 Required properties for V3D:
54 - compatible: Should be "brcm,bcm2835-v3d"
55 - reg: Physical base address and length of the V3D's registers
56 - interrupts: The interrupt number
57 See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
59 [1] Documentation/devicetree/bindings/media/video-interfaces.txt
63 compatible = "brcm,bcm2835-pixelvalve2";
64 reg = <0x7e807000 0x100>;
65 interrupts = <2 10>; /* pixelvalve */
69 compatible = "brcm,bcm2835-hvs";
70 reg = <0x7e400000 0x6000>;
75 compatible = "brcm,bcm2835-hdmi";
76 reg = <0x7e902000 0x600>,
78 interrupts = <2 8>, <2 9>;
80 hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
81 clocks = <&clocks BCM2835_PLLH_PIX>,
82 <&clocks BCM2835_CLOCK_HSM>;
83 clock-names = "pixel", "hdmi";
87 compatible = "brcm,bcm2835-dpi";
88 reg = <0x7e208000 0x8c>;
89 clocks = <&clocks BCM2835_CLOCK_VPU>,
90 <&clocks BCM2835_CLOCK_DPI>;
91 clock-names = "core", "pixel";
97 remote-endpoint = <&panel_in>;
103 compatible = "brcm,bcm2835-vec";
104 reg = <0x7e806000 0x1000>;
105 clocks = <&clocks BCM2835_CLOCK_VEC>;
110 compatible = "brcm,bcm2835-v3d";
111 reg = <0x7ec00000 0x1000>;
116 compatible = "brcm,bcm2835-vc4";
120 compatible = "ontat,yx700wv03", "simple-panel";
124 remote-endpoint = <&dpi_out>;