cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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allwinner,sun4i-a10-display-engine.yaml (3632B)

      1# SPDX-License-Identifier: GPL-2.0
      2%YAML 1.2
      3---
      4$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-display-engine.yaml#
      5$schema: http://devicetree.org/meta-schemas/core.yaml#
      6
      7title: Allwinner A10 Display Engine Pipeline Device Tree Bindings
      8
      9maintainers:
     10  - Chen-Yu Tsai <wens@csie.org>
     11  - Maxime Ripard <mripard@kernel.org>
     12
     13description: |
     14  The display engine pipeline (and its entry point, since it can be
     15  either directly the backend or the frontend) is represented as an
     16  extra node.
     17
     18  The Allwinner A10 Display pipeline is composed of several components
     19  that are going to be documented below:
     20
     21  For all connections between components up to the TCONs in the
     22  display pipeline, when there are multiple components of the same
     23  type at the same depth, the local endpoint ID must be the same as
     24  the remote component's index. For example, if the remote endpoint is
     25  Frontend 1, then the local endpoint ID must be 1.
     26
     27  Frontend 0  [0] ------- [0]  Backend 0  [0] ------- [0]  TCON 0
     28              [1] --   -- [1]             [1] --   -- [1]
     29                    \ /                         \ /
     30                     X                           X
     31                    / \                         / \
     32              [0] --   -- [0]             [0] --   -- [0]
     33  Frontend 1  [1] ------- [1]  Backend 1  [1] ------- [1]  TCON 1
     34
     35  For a two pipeline system such as the one depicted above, the lines
     36  represent the connections between the components, while the numbers
     37  within the square brackets corresponds to the ID of the local endpoint.
     38
     39  The same rule also applies to DE 2.0 mixer-TCON connections:
     40
     41  Mixer 0  [0] ----------- [0]  TCON 0
     42           [1] ----   ---- [1]
     43                   \ /
     44                    X
     45                   / \
     46           [0] ----   ---- [0]
     47  Mixer 1  [1] ----------- [1]  TCON 1
     48
     49properties:
     50  compatible:
     51    enum:
     52      - allwinner,sun4i-a10-display-engine
     53      - allwinner,sun5i-a10s-display-engine
     54      - allwinner,sun5i-a13-display-engine
     55      - allwinner,sun6i-a31-display-engine
     56      - allwinner,sun6i-a31s-display-engine
     57      - allwinner,sun7i-a20-display-engine
     58      - allwinner,sun8i-a23-display-engine
     59      - allwinner,sun8i-a33-display-engine
     60      - allwinner,sun8i-a83t-display-engine
     61      - allwinner,sun8i-h3-display-engine
     62      - allwinner,sun8i-r40-display-engine
     63      - allwinner,sun8i-v3s-display-engine
     64      - allwinner,sun9i-a80-display-engine
     65      - allwinner,sun20i-d1-display-engine
     66      - allwinner,sun50i-a64-display-engine
     67      - allwinner,sun50i-h6-display-engine
     68
     69  allwinner,pipelines:
     70    $ref: /schemas/types.yaml#/definitions/phandle-array
     71    minItems: 1
     72    maxItems: 2
     73    items:
     74      maxItems: 1
     75    description: |
     76      Available display engine frontends (DE 1.0) or mixers (DE
     77      2.0/3.0) available.
     78
     79required:
     80  - compatible
     81  - allwinner,pipelines
     82
     83additionalProperties: false
     84
     85if:
     86  properties:
     87    compatible:
     88      contains:
     89        enum:
     90          - allwinner,sun4i-a10-display-engine
     91          - allwinner,sun6i-a31-display-engine
     92          - allwinner,sun6i-a31s-display-engine
     93          - allwinner,sun7i-a20-display-engine
     94          - allwinner,sun8i-a83t-display-engine
     95          - allwinner,sun8i-r40-display-engine
     96          - allwinner,sun9i-a80-display-engine
     97          - allwinner,sun50i-a64-display-engine
     98
     99then:
    100  properties:
    101    allwinner,pipelines:
    102      minItems: 2
    103
    104else:
    105  properties:
    106    allwinner,pipelines:
    107      maxItems: 1
    108
    109examples:
    110  - |
    111      de: display-engine {
    112          compatible = "allwinner,sun4i-a10-display-engine";
    113          allwinner,pipelines = <&fe0>, <&fe1>;
    114      };
    115
    116...