imx-keypad.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/input/imx-keypad.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Freescale i.MX Keypad Port(KPP) device tree bindings
    8 
    9 maintainers:
   10   - Liu Ying <gnuiyl@gmail.com>
   11 
   12 allOf:
   13   - $ref: "/schemas/input/matrix-keymap.yaml#"
   14 
   15 description: |
   16   The KPP is designed to interface with a keypad matrix with 2-point contact
   17   or 3-point contact keys. The KPP is designed to simplify the software task
   18   of scanning a keypad matrix. The KPP is capable of detecting, debouncing,
   19   and decoding one or multiple keys pressed simultaneously on a keypad.
   20 
   21 properties:
   22   compatible:
   23     oneOf:
   24       - const: fsl,imx21-kpp
   25       - items:
   26           - enum:
   27               - fsl,imx25-kpp
   28               - fsl,imx27-kpp
   29               - fsl,imx31-kpp
   30               - fsl,imx35-kpp
   31               - fsl,imx51-kpp
   32               - fsl,imx53-kpp
   33               - fsl,imx50-kpp
   34               - fsl,imx6q-kpp
   35               - fsl,imx6sx-kpp
   36               - fsl,imx6sl-kpp
   37               - fsl,imx6sll-kpp
   38               - fsl,imx6ul-kpp
   39               - fsl,imx7d-kpp
   40           - const: fsl,imx21-kpp
   41 
   42   reg:
   43     maxItems: 1
   44 
   45   interrupts:
   46     maxItems: 1
   47 
   48   clocks:
   49     maxItems: 1
   50 
   51 required:
   52   - compatible
   53   - reg
   54   - interrupts
   55   - clocks
   56   - linux,keymap
   57 
   58 unevaluatedProperties: false
   59 
   60 examples:
   61   - |
   62     keypad@73f94000 {
   63         compatible = "fsl,imx51-kpp", "fsl,imx21-kpp";
   64         reg = <0x73f94000 0x4000>;
   65         interrupts = <60>;
   66         clocks = <&clks 0>;
   67         pinctrl-names = "default";
   68         pinctrl-0 = <&pinctrl_kpp_1>;
   69         linux,keymap = <0x00000067      /* KEY_UP */
   70                         0x0001006c      /* KEY_DOWN */
   71                         0x00020072      /* KEY_VOLUMEDOWN */
   72                         0x00030066      /* KEY_HOME */
   73                         0x0100006a      /* KEY_RIGHT */
   74                         0x01010069      /* KEY_LEFT */
   75                         0x0102001c      /* KEY_ENTER */
   76                         0x01030073      /* KEY_VOLUMEUP */
   77                         0x02000040      /* KEY_F6 */
   78                         0x02010042      /* KEY_F8 */
   79                         0x02020043      /* KEY_F9 */
   80                         0x02030044      /* KEY_F10 */
   81                         0x0300003b      /* KEY_F1 */
   82                         0x0301003c      /* KEY_F2 */
   83                         0x0302003d      /* KEY_F3 */
   84                         0x03030074>;    /* KEY_POWER */
   85     };

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sys/contrib/device-tree/Bindings/input/imx-keypad.yaml