xref: /freebsd/sys/contrib/device-tree/Bindings/display/rockchip/rockchip,rk3066-hdmi.yaml (revision cfd6422a5217410fbd66f7a7a8a64d9d85e61229) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/rockchip/rockchip,rk3066-hdmi.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Rockchip rk3066 HDMI controller
8
9maintainers:
10  - Sandy Huang <hjc@rock-chips.com>
11  - Heiko Stuebner <heiko@sntech.de>
12
13properties:
14  compatible:
15    const: rockchip,rk3066-hdmi
16
17  reg:
18    maxItems: 1
19
20  interrupts:
21    maxItems: 1
22
23  clocks:
24    maxItems: 1
25
26  clock-names:
27    const: hclk
28
29  pinctrl-0:
30    maxItems: 2
31
32  pinctrl-names:
33    const: default
34    description:
35      Switch the iomux for the HPD/I2C pins to HDMI function.
36
37  power-domains:
38    maxItems: 1
39
40  rockchip,grf:
41    $ref: /schemas/types.yaml#/definitions/phandle
42    description:
43      This soc uses GRF regs to switch the HDMI TX input between vop0 and vop1.
44
45  ports:
46    type: object
47
48    properties:
49      "#address-cells":
50        const: 1
51
52      "#size-cells":
53        const: 0
54
55      port@0:
56        type: object
57        description:
58          Port node with two endpoints, numbered 0 and 1,
59          connected respectively to vop0 and vop1.
60
61      port@1:
62        type: object
63        description:
64          Port node with one endpoint connected to a hdmi-connector node.
65
66    required:
67      - "#address-cells"
68      - "#size-cells"
69      - port@0
70      - port@1
71
72    additionalProperties: false
73
74required:
75  - compatible
76  - reg
77  - interrupts
78  - clocks
79  - clock-names
80  - pinctrl-0
81  - pinctrl-names
82  - power-domains
83  - rockchip,grf
84  - ports
85
86additionalProperties: false
87
88examples:
89  - |
90    #include <dt-bindings/clock/rk3066a-cru.h>
91    #include <dt-bindings/interrupt-controller/arm-gic.h>
92    #include <dt-bindings/pinctrl/rockchip.h>
93    #include <dt-bindings/power/rk3066-power.h>
94    hdmi: hdmi@10116000 {
95      compatible = "rockchip,rk3066-hdmi";
96      reg = <0x10116000 0x2000>;
97      interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
98      clocks = <&cru HCLK_HDMI>;
99      clock-names = "hclk";
100      pinctrl-0 = <&hdmii2c_xfer>, <&hdmi_hpd>;
101      pinctrl-names = "default";
102      power-domains = <&power RK3066_PD_VIO>;
103      rockchip,grf = <&grf>;
104
105      ports {
106        #address-cells = <1>;
107        #size-cells = <0>;
108        hdmi_in: port@0 {
109          reg = <0>;
110          #address-cells = <1>;
111          #size-cells = <0>;
112          hdmi_in_vop0: endpoint@0 {
113            reg = <0>;
114            remote-endpoint = <&vop0_out_hdmi>;
115          };
116          hdmi_in_vop1: endpoint@1 {
117            reg = <1>;
118            remote-endpoint = <&vop1_out_hdmi>;
119          };
120        };
121        hdmi_out: port@1 {
122          reg = <1>;
123          hdmi_out_con: endpoint {
124            remote-endpoint = <&hdmi_con_in>;
125          };
126        };
127      };
128    };
129
130    pinctrl {
131      hdmi {
132        hdmi_hpd: hdmi-hpd {
133          rockchip,pins = <0 RK_PA0 1 &pcfg_pull_default>;
134        };
135        hdmii2c_xfer: hdmii2c-xfer {
136          rockchip,pins = <0 RK_PA1 1 &pcfg_pull_none>,
137                          <0 RK_PA2 1 &pcfg_pull_none>;
138        };
139      };
140    };
141