1 ZTE VOU Display Controller
3 This is a display controller found on ZTE ZX296718 SoC. It includes multiple
4 Graphic Layer (GL) and Video Layer (VL), two Mixers/Channels, and a few blocks
5 handling scaling, color space conversion etc. VOU also integrates the support
6 for typical output devices, like HDMI, TV Encoder, VGA, and RGB LCD.
10 It must be the parent node of all the sub-device nodes.
13 - compatible: should be "zte,zx296718-vou"
14 - #address-cells: should be <1>
15 - #size-cells: should be <1>
16 - ranges: list of address translations between VOU and sub-devices
21 - compatible: should be "zte,zx296718-dpc"
22 - reg: Physical base address and length of DPC register regions, one for each
24 - reg-names: The names of register regions. The following regions are required:
30 - interrupts: VOU DPC interrupt number to CPU
31 - clocks: A list of phandle + clock-specifier pairs, one for each entry
33 - clock-names: A list of clock names. The following clocks are required:
42 - compatible: should be "zte,zx296718-hdmi"
43 - reg: Physical base address and length of the HDMI device IO region
44 - interrupts : HDMI interrupt number to CPU
45 - clocks: A list of phandle + clock-specifier pairs, one for each entry
47 - clock-names: A list of clock names. The following clocks are required:
52 * TV Encoder output device
55 - compatible: should be "zte,zx296718-tvenc"
56 - reg: Physical base address and length of the TVENC device IO region
57 - zte,tvenc-power-control: the phandle to SYSCTRL block followed by two
58 integer cells. The first cell is the offset of SYSCTRL register used
59 to control TV Encoder DAC power, and the second cell is the bit mask.
64 - compatible: should be "zte,zx296718-vga"
65 - reg: Physical base address and length of the VGA device IO region
66 - interrupts : VGA interrupt number to CPU
67 - clocks: Phandle with clock-specifier pointing to VGA I2C clock.
68 - clock-names: Must be "i2c_wclk".
69 - zte,vga-power-control: the phandle to SYSCTRL block followed by two
70 integer cells. The first cell is the offset of SYSCTRL register used
71 to control VGA DAC power, and the second cell is the bit mask.
76 compatible = "zte,zx296718-vou";
79 ranges = <0 0x1440000 0x10000>;
82 compatible = "zte,zx296718-dpc";
83 reg = <0x0000 0x1000>, <0x1000 0x1000>,
84 <0x5000 0x1000>, <0x6000 0x1000>,
86 reg-names = "osd", "timing_ctrl",
89 interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
90 clocks = <&topcrm VOU_ACLK>, <&topcrm VOU_PPU_WCLK>,
91 <&topcrm VOU_MAIN_WCLK>, <&topcrm VOU_AUX_WCLK>;
92 clock-names = "aclk", "ppu_wclk",
93 "main_wclk", "aux_wclk";
97 compatible = "zte,zx296718-vga";
98 reg = <0x8000 0x1000>;
99 interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
100 clocks = <&topcrm VGA_I2C_WCLK>;
101 clock-names = "i2c_wclk";
102 zte,vga-power-control = <&sysctrl 0x170 0xe0>;
106 compatible = "zte,zx296718-hdmi";
107 reg = <0xc000 0x4000>;
108 interrupts = <GIC_SPI 82 IRQ_TYPE_EDGE_RISING>;
109 clocks = <&topcrm HDMI_OSC_CEC>,
110 <&topcrm HDMI_OSC_CLK>,
112 clock-names = "osc_cec", "osc_clk", "xclk";
116 compatible = "zte,zx296718-tvenc";
117 reg = <0x2000 0x1000>;
118 zte,tvenc-power-control = <&sysctrl 0x170 0x10>;