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
37 - dmas: Should contain one entry pointing to the DMA channel used to
39 - dma-names: Should contain "audio-rx"
41 Required properties for DPI:
42 - compatible: Should be "brcm,bcm2835-dpi"
43 - reg: Physical base address and length of the registers
44 - clocks: a) core: The core clock the unit runs on
45 b) pixel: The pixel clock that feeds the pixelvalve
46 - port: Port node with a single endpoint connecting to the panel
47 device, as defined in [1]
49 Required properties for VEC:
50 - compatible: Should be "brcm,bcm2835-vec"
51 - reg: Physical base address and length of the registers
52 - clocks: The core clock the unit runs on
53 - interrupts: The interrupt number
54 See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
56 Required properties for V3D:
57 - compatible: Should be "brcm,bcm2835-v3d"
58 - reg: Physical base address and length of the V3D's registers
59 - interrupts: The interrupt number
60 See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
62 Required properties for DSI:
63 - compatible: Should be "brcm,bcm2835-dsi0" or "brcm,bcm2835-dsi1"
64 - reg: Physical base address and length of the DSI block's registers
65 - interrupts: The interrupt number
66 See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
67 - clocks: a) phy: The DSI PLL clock feeding the DSI analog PHY
68 b) escape: The DSI ESC clock from CPRMAN
69 c) pixel: The DSI pixel clock from CPRMAN
71 The 3 clocks output from the DSI analog PHY: dsi[01]_byte,
72 dsi[01]_ddr2, and dsi[01]_ddr
74 [1] Documentation/devicetree/bindings/media/video-interfaces.txt
78 compatible = "brcm,bcm2835-pixelvalve2";
79 reg = <0x7e807000 0x100>;
80 interrupts = <2 10>; /* pixelvalve */
84 compatible = "brcm,bcm2835-hvs";
85 reg = <0x7e400000 0x6000>;
90 compatible = "brcm,bcm2835-hdmi";
91 reg = <0x7e902000 0x600>,
93 interrupts = <2 8>, <2 9>;
95 hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
96 clocks = <&clocks BCM2835_PLLH_PIX>,
97 <&clocks BCM2835_CLOCK_HSM>;
98 clock-names = "pixel", "hdmi";
102 compatible = "brcm,bcm2835-dpi";
103 reg = <0x7e208000 0x8c>;
104 clocks = <&clocks BCM2835_CLOCK_VPU>,
105 <&clocks BCM2835_CLOCK_DPI>;
106 clock-names = "core", "pixel";
107 #address-cells = <1>;
111 dpi_out: endpoint@0 {
112 remote-endpoint = <&panel_in>;
118 compatible = "brcm,bcm2835-dsi1";
119 reg = <0x7e700000 0x8c>;
121 #address-cells = <1>;
125 clocks = <&clocks BCM2835_PLLD_DSI1>,
126 <&clocks BCM2835_CLOCK_DSI1E>,
127 <&clocks BCM2835_CLOCK_DSI1P>;
128 clock-names = "phy", "escape", "pixel";
130 clock-output-names = "dsi1_byte", "dsi1_ddr2", "dsi1_ddr";
132 pitouchscreen: panel@0 {
133 compatible = "raspberrypi,touchscreen";
141 compatible = "brcm,bcm2835-vec";
142 reg = <0x7e806000 0x1000>;
143 clocks = <&clocks BCM2835_CLOCK_VEC>;
148 compatible = "brcm,bcm2835-v3d";
149 reg = <0x7ec00000 0x1000>;
154 compatible = "brcm,bcm2835-vc4";
158 compatible = "ontat,yx700wv03", "simple-panel";
162 remote-endpoint = <&dpi_out>;