1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/display/rockchip/rockchip-vop.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Rockchip SoC display controller (VOP)
8
9 description:
10 VOP (Video Output Processor) is the display controller for the Rockchip
11 series of SoCs which transfers the image data from a video memory
12 buffer to an external LCD interface.
13
14 maintainers:
15 - Sandy Huang <hjc@rock-chips.com>
16 - Heiko Stuebner <heiko@sntech.de>
17
18 properties:
19 compatible:
20 enum:
21 - rockchip,px30-vop-big
22 - rockchip,px30-vop-lit
23 - rockchip,rk3036-vop
24 - rockchip,rk3066-vop
25 - rockchip,rk3126-vop
26 - rockchip,rk3188-vop
27 - rockchip,rk3228-vop
28 - rockchip,rk3288-vop
29 - rockchip,rk3328-vop
30 - rockchip,rk3366-vop
31 - rockchip,rk3368-vop
32 - rockchip,rk3399-vop-big
33 - rockchip,rk3399-vop-lit
34 - rockchip,rv1126-vop
35
36 reg:
37 minItems: 1
38 items:
39 - description:
40 Must contain one entry corresponding to the base address and length
41 of the register space.
42 - description:
43 Can optionally contain a second entry corresponding to
44 the CRTC gamma LUT address.
45
46 interrupts:
47 maxItems: 1
48 description:
49 The VOP interrupt is shared by several interrupt sources, such as
50 frame start (VSYNC), line flag and other status interrupts.
51
52 clocks:
53 items:
54 - description: Clock for ddr buffer transfer.
55 - description: Pixel clock.
56 - description: Clock for the ahb bus to R/W the phy regs.
57
58 clock-names:
59 items:
60 - const: aclk_vop
61 - const: dclk_vop
62 - const: hclk_vop
63
64 resets:
65 maxItems: 3
66
67 reset-names:
68 items:
69 - const: axi
70 - const: ahb
71 - const: dclk
72
73 port:
74 $ref: /schemas/graph.yaml#/properties/port
75
76 assigned-clocks:
77 maxItems: 2
78
79 assigned-clock-rates:
80 maxItems: 2
81
82 iommus:
83 maxItems: 1
84
85 power-domains:
86 maxItems: 1
87
88 required:
89 - compatible
90 - reg
91 - interrupts
92 - clocks
93 - clock-names
94 - resets
95 - reset-names
96 - port
97
98 additionalProperties: false
99
100 examples:
101 - |
102 #include <dt-bindings/clock/rk3288-cru.h>
103 #include <dt-bindings/interrupt-controller/arm-gic.h>
104 #include <dt-bindings/power/rk3288-power.h>
105 vopb: vopb@ff930000 {
106 compatible = "rockchip,rk3288-vop";
107 reg = <0xff930000 0x19c>,
108 <0xff931000 0x1000>;
109 interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
110 clocks = <&cru ACLK_VOP0>,
111 <&cru DCLK_VOP0>,
112 <&cru HCLK_VOP0>;
113 clock-names = "aclk_vop", "dclk_vop", "hclk_vop";
114 power-domains = <&power RK3288_PD_VIO>;
115 resets = <&cru SRST_LCDC1_AXI>,
116 <&cru SRST_LCDC1_AHB>,
117 <&cru SRST_LCDC1_DCLK>;
118 reset-names = "axi", "ahb", "dclk";
119 iommus = <&vopb_mmu>;
120 vopb_out: port {
121 #address-cells = <1>;
122 #size-cells = <0>;
123 vopb_out_edp: endpoint@0 {
124 reg = <0>;
125 remote-endpoint = <&edp_in_vopb>;
126 };
127 vopb_out_hdmi: endpoint@1 {
128 reg = <1>;
129 remote-endpoint = <&hdmi_in_vopb>;
130 };
131 };
132 };
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