Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra210-nvjpg.yaml


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: "http://devicetree.org/schemas/gpu/host1x/nvidia,tegra210-nvjpg.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"

title: NVIDIA Tegra NVJPG

description: |
  NVJPG is the hardware JPEG decoder and encoder present on NVIDIA Tegra210
  and newer chips. It is located on the Host1x bus and typically programmed
  through Host1x channels.

maintainers:
  - Thierry Reding <treding@gmail.com>
  - Mikko Perttunen <mperttunen@nvidia.com>

properties:
  $nodename:
    pattern: "^nvjpg@[0-9a-f]*$"

  compatible:
    enum:
      - nvidia,tegra210-nvjpg
      - nvidia,tegra186-nvjpg
      - nvidia,tegra194-nvjpg

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  clock-names:
    items:
      - const: nvjpg

  resets:
    maxItems: 1

  reset-names:
    items:
      - const: nvjpg

  power-domains:
    maxItems: 1

  iommus:
    maxItems: 1

  dma-coherent: true

  interconnects:
    items:
      - description: DMA read memory client
      - description: DMA write memory client

  interconnect-names:
    items:
      - const: dma-mem
      - const: write

required:
  - compatible
  - reg
  - clocks
  - clock-names
  - resets
  - reset-names
  - power-domains

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/tegra186-clock.h>
    #include <dt-bindings/memory/tegra186-mc.h>
    #include <dt-bindings/power/tegra186-powergate.h>
    #include <dt-bindings/reset/tegra186-reset.h>

    nvjpg@15380000 {
            compatible = "nvidia,tegra186-nvjpg";
            reg = <0x15380000 0x40000>;
            clocks = <&bpmp TEGRA186_CLK_NVJPG>;
            clock-names = "nvjpg";
            resets = <&bpmp TEGRA186_RESET_NVJPG>;
            reset-names = "nvjpg";

            power-domains = <&bpmp TEGRA186_POWER_DOMAIN_NVJPG>;
            interconnects = <&mc TEGRA186_MEMORY_CLIENT_NVJPGSRD &emc>,
                            <&mc TEGRA186_MEMORY_CLIENT_NVJPGSWR &emc>;
            interconnect-names = "dma-mem", "write";
            iommus = <&smmu TEGRA186_SID_NVJPG>;
    };