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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atmel,maxtouch.yaml (3279B)

      1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
      2%YAML 1.2
      3---
      4$id: http://devicetree.org/schemas/input/atmel,maxtouch.yaml#
      5$schema: http://devicetree.org/meta-schemas/core.yaml#
      6
      7title: Atmel maXTouch touchscreen/touchpad
      8
      9maintainers:
     10  - Nick Dyer <nick@shmanahar.org>
     11  - Linus Walleij <linus.walleij@linaro.org>
     12
     13description: |
     14  Atmel maXTouch touchscreen or touchpads such as the mXT244
     15  and similar devices.
     16
     17properties:
     18  compatible:
     19    const: atmel,maxtouch
     20
     21  reg:
     22    maxItems: 1
     23
     24  interrupts:
     25    maxItems: 1
     26
     27  vdda-supply:
     28    description:
     29      Optional regulator for the AVDD analog voltage.
     30
     31  vdd-supply:
     32    description:
     33      Optional regulator for the VDD digital voltage.
     34
     35  reset-gpios:
     36    maxItems: 1
     37    description:
     38      Optional GPIO specifier for the touchscreen's reset pin
     39      (active low). The line must be flagged with
     40      GPIO_ACTIVE_LOW.
     41
     42  wake-gpios:
     43    maxItems: 1
     44    description:
     45      Optional GPIO specifier for the touchscreen's wake pin
     46      (active low). The line must be flagged with
     47      GPIO_ACTIVE_LOW.
     48
     49  linux,gpio-keymap:
     50    $ref: /schemas/types.yaml#/definitions/uint32-array
     51    description: |
     52      When enabled, the SPT_GPIOPWN_T19 object sends messages
     53      on GPIO bit changes. An array of up to 8 entries can be provided
     54      indicating the Linux keycode mapped to each bit of the status byte,
     55      starting at the LSB. Linux keycodes are defined in
     56      <dt-bindings/input/input.h>.
     57
     58      Note: the numbering of the GPIOs and the bit they start at varies
     59      between maXTouch devices. You must either refer to the documentation,
     60      or experiment to determine which bit corresponds to which input. Use
     61      KEY_RESERVED for unused padding values.
     62
     63  atmel,wakeup-method:
     64    $ref: /schemas/types.yaml#/definitions/uint32
     65    description: |
     66      The WAKE line is an active-low input that is used to wake up the touch
     67      controller from deep-sleep mode before communication with the controller
     68      could be started. This optional feature used to minimize current
     69      consumption when the controller is in deep sleep mode. This feature is
     70      relevant only to some controller families, like mXT1386 controller for
     71      example.
     72
     73      The WAKE pin can be connected in one of the following ways:
     74       1) left permanently low
     75       2) connected to the I2C-compatible SCL pin
     76       3) connected to a GPIO pin on the host
     77    enum:
     78      - 0 # ATMEL_MXT_WAKEUP_NONE
     79      - 1 # ATMEL_MXT_WAKEUP_I2C_SCL
     80      - 2 # ATMEL_MXT_WAKEUP_GPIO
     81    default: 0
     82
     83  wakeup-source:
     84    type: boolean
     85
     86required:
     87  - compatible
     88  - reg
     89  - interrupts
     90
     91additionalProperties: false
     92
     93examples:
     94  - |
     95    #include <dt-bindings/interrupt-controller/irq.h>
     96    #include <dt-bindings/input/atmel-maxtouch.h>
     97    #include <dt-bindings/gpio/gpio.h>
     98    i2c {
     99      #address-cells = <1>;
    100      #size-cells = <0>;
    101      touchscreen@4a {
    102        compatible = "atmel,maxtouch";
    103        reg = <0x4a>;
    104        interrupt-parent = <&gpio>;
    105        interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
    106        reset-gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
    107        vdda-supply = <&ab8500_ldo_aux2_reg>;
    108        vdd-supply = <&ab8500_ldo_aux5_reg>;
    109        atmel,wakeup-method = <ATMEL_MXT_WAKEUP_I2C_SCL>;
    110      };
    111    };
    112
    113...