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