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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tpo,tpg110.yaml (2445B)

      1# SPDX-License-Identifier: GPL-2.0
      2%YAML 1.2
      3---
      4$id: http://devicetree.org/schemas/display/panel/tpo,tpg110.yaml#
      5$schema: http://devicetree.org/meta-schemas/core.yaml#
      6
      7title: TPO TPG110 Panel
      8
      9maintainers:
     10  - Linus Walleij <linus.walleij@linaro.org>
     11  - Thierry Reding <thierry.reding@gmail.com>
     12
     13description: |+
     14  This panel driver is a component that acts as an intermediary
     15  between an RGB output and a variety of panels. The panel
     16  driver is strapped up in electronics to the desired resolution
     17  and other properties, and has a control interface over 3WIRE
     18  SPI. By talking to the TPG110 over SPI, the strapped properties
     19  can be discovered and the hardware is therefore mostly
     20  self-describing.
     21
     22         +--------+
     23  SPI -> |  TPO   | -> physical display
     24  RGB -> | TPG110 |
     25         +--------+
     26
     27  If some electrical strap or alternate resolution is desired,
     28  this can be set up by taking software control of the display
     29  over the SPI interface. The interface can also adjust
     30  for properties of the display such as gamma correction and
     31  certain electrical driving levels.
     32
     33  The TPG110 does not know the physical dimensions of the panel
     34  connected, so this needs to be specified in the device tree.
     35
     36  It requires a GPIO line for control of its reset line.
     37
     38  The serial protocol has line names that resemble I2C but the
     39  protocol is not I2C but 3WIRE SPI.
     40
     41
     42allOf:
     43  - $ref: panel-common.yaml#
     44
     45properties:
     46  compatible:
     47    oneOf:
     48      - items:
     49          - enum:
     50              - ste,nomadik-nhk15-display
     51          - const: tpo,tpg110
     52      - const: tpo,tpg110
     53
     54  reg: true
     55
     56  grestb-gpios:
     57    maxItems: 1
     58    description: panel reset GPIO
     59
     60  spi-3wire: true
     61
     62  spi-max-frequency:
     63    const: 3000000
     64
     65required:
     66  - compatible
     67  - reg
     68  - grestb-gpios
     69  - width-mm
     70  - height-mm
     71  - spi-3wire
     72  - spi-max-frequency
     73  - port
     74
     75unevaluatedProperties: false
     76
     77examples:
     78  - |+
     79    spi {
     80      #address-cells = <1>;
     81      #size-cells = <0>;
     82
     83      panel: display@0 {
     84        compatible = "tpo,tpg110";
     85        reg = <0>;
     86        spi-3wire;
     87        /* 320 ns min period ~= 3 MHz */
     88        spi-max-frequency = <3000000>;
     89        /* Width and height from data sheet */
     90        width-mm = <116>;
     91        height-mm = <87>;
     92        grestb-gpios = <&foo_gpio 5 1>;
     93        backlight = <&bl>;
     94
     95        port {
     96          nomadik_clcd_panel: endpoint {
     97            remote-endpoint = <&foo>;
     98          };
     99        };
    100      };
    101    };
    102
    103...