1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/display/brc 4 $id: http://devicetree.org/schemas/display/brcm,bcm2835-hdmi.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Broadcom VC4 (VideoCore4) HDMI Controll 7 title: Broadcom VC4 (VideoCore4) HDMI Controller
8 8
9 maintainers: 9 maintainers:
10 - Eric Anholt <eric@anholt.net> 10 - Eric Anholt <eric@anholt.net>
11 11
12 properties: 12 properties:
13 compatible: 13 compatible:
14 const: brcm,bcm2835-hdmi 14 const: brcm,bcm2835-hdmi
15 15
16 reg: 16 reg:
17 items: 17 items:
18 - description: HDMI register range 18 - description: HDMI register range
19 - description: HD register range 19 - description: HD register range
20 20
21 interrupts: 21 interrupts:
22 minItems: 2 22 minItems: 2
23 23
24 clocks: 24 clocks:
25 items: 25 items:
26 - description: The pixel clock 26 - description: The pixel clock
27 - description: The HDMI state machine cl 27 - description: The HDMI state machine clock
28 28
29 clock-names: 29 clock-names:
30 items: 30 items:
31 - const: pixel 31 - const: pixel
32 - const: hdmi 32 - const: hdmi
33 33
34 ddc: 34 ddc:
35 $ref: /schemas/types.yaml#/definitions/pha 35 $ref: /schemas/types.yaml#/definitions/phandle
36 description: > 36 description: >
37 Phandle of the I2C controller used for D 37 Phandle of the I2C controller used for DDC EDID probing
38 38
39 hpd-gpios: 39 hpd-gpios:
40 maxItems: 1 40 maxItems: 1
41 description: > 41 description: >
42 The GPIO pin for the HDMI hotplug detect 42 The GPIO pin for the HDMI hotplug detect (if it doesn't appear
43 as an interrupt/status bit in the HDMI c 43 as an interrupt/status bit in the HDMI controller itself)
44 44
45 dmas: 45 dmas:
46 maxItems: 1 46 maxItems: 1
47 description: > 47 description: >
48 Should contain one entry pointing to the 48 Should contain one entry pointing to the DMA channel used to
49 transfer audio data. 49 transfer audio data.
50 50
51 dma-names: 51 dma-names:
52 const: audio-rx 52 const: audio-rx
53 53
54 power-domains: 54 power-domains:
55 maxItems: 1 55 maxItems: 1
56 56
57 required: 57 required:
58 - compatible 58 - compatible
59 - reg 59 - reg
60 - interrupts 60 - interrupts
61 - clocks 61 - clocks
62 - ddc 62 - ddc
63 63
64 additionalProperties: false 64 additionalProperties: false
65 65
66 examples: 66 examples:
67 - | 67 - |
68 #include <dt-bindings/clock/bcm2835.h> 68 #include <dt-bindings/clock/bcm2835.h>
69 #include <dt-bindings/gpio/gpio.h> 69 #include <dt-bindings/gpio/gpio.h>
70 70
71 hdmi: hdmi@7e902000 { 71 hdmi: hdmi@7e902000 {
72 compatible = "brcm,bcm2835-hdmi"; 72 compatible = "brcm,bcm2835-hdmi";
73 reg = <0x7e902000 0x600>, 73 reg = <0x7e902000 0x600>,
74 <0x7e808000 0x100>; 74 <0x7e808000 0x100>;
75 interrupts = <2 8>, <2 9>; 75 interrupts = <2 8>, <2 9>;
76 ddc = <&i2c2>; 76 ddc = <&i2c2>;
77 hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH 77 hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
78 clocks = <&clocks BCM2835_PLLH_PIX>, 78 clocks = <&clocks BCM2835_PLLH_PIX>,
79 <&clocks BCM2835_CLOCK_HSM>; 79 <&clocks BCM2835_CLOCK_HSM>;
80 clock-names = "pixel", "hdmi"; 80 clock-names = "pixel", "hdmi";
81 }; 81 };
82 82
83 ... 83 ...
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.