tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1Renesas Gen3 DWC HDMI TX Encoder
2================================
3
4The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP
5with a companion PHY IP.
6
7These DT bindings follow the Synopsys DWC HDMI TX bindings defined in
8Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt with the
9following device-specific properties.
10
11
12Required properties:
13
14- compatible : Shall contain one or more of
15 - "renesas,r8a774a1-hdmi" for R8A774A1 (RZ/G2M) compatible HDMI TX
16 - "renesas,r8a774b1-hdmi" for R8A774B1 (RZ/G2N) compatible HDMI TX
17 - "renesas,r8a7795-hdmi" for R8A7795 (R-Car H3) compatible HDMI TX
18 - "renesas,r8a7796-hdmi" for R8A7796 (R-Car M3-W) compatible HDMI TX
19 - "renesas,r8a77965-hdmi" for R8A77965 (R-Car M3-N) compatible HDMI TX
20 - "renesas,rcar-gen3-hdmi" for the generic R-Car Gen3 and RZ/G2 compatible
21 HDMI TX
22
23 When compatible with generic versions, nodes must list the SoC-specific
24 version corresponding to the platform first, followed by the
25 family-specific version.
26
27- reg: See dw_hdmi.txt.
28- interrupts: HDMI interrupt number
29- clocks: See dw_hdmi.txt.
30- clock-names: Shall contain "iahb" and "isfr" as defined in dw_hdmi.txt.
31- ports: See dw_hdmi.txt. The DWC HDMI shall have one port numbered 0
32 corresponding to the video input of the controller and one port numbered 1
33 corresponding to its HDMI output, and one port numbered 2 corresponding to
34 sound input of the controller. Each port shall have a single endpoint.
35
36Optional properties:
37
38- power-domains: Shall reference the power domain that contains the DWC HDMI,
39 if any.
40
41
42Example:
43
44 hdmi0: hdmi@fead0000 {
45 compatible = "renesas,r8a7795-dw-hdmi";
46 reg = <0 0xfead0000 0 0x10000>;
47 interrupts = <0 389 IRQ_TYPE_LEVEL_HIGH>;
48 clocks = <&cpg CPG_CORE R8A7795_CLK_S0D4>, <&cpg CPG_MOD 729>;
49 clock-names = "iahb", "isfr";
50 power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
51
52 ports {
53 #address-cells = <1>;
54 #size-cells = <0>;
55 port@0 {
56 reg = <0>;
57 dw_hdmi0_in: endpoint {
58 remote-endpoint = <&du_out_hdmi0>;
59 };
60 };
61 port@1 {
62 reg = <1>;
63 rcar_dw_hdmi0_out: endpoint {
64 remote-endpoint = <&hdmi0_con>;
65 };
66 };
67 port@2 {
68 reg = <2>;
69 rcar_dw_hdmi0_sound_in: endpoint {
70 remote-endpoint = <&hdmi_sound_out>;
71 };
72 };
73 };
74 };
75
76 hdmi0-out {
77 compatible = "hdmi-connector";
78 label = "HDMI0 OUT";
79 type = "a";
80
81 port {
82 hdmi0_con: endpoint {
83 remote-endpoint = <&rcar_dw_hdmi0_out>;
84 };
85 };
86 };