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    SubjectRe: [PATCH v3 2/5] dt-bindings: input: Add document bindings for mtk-pmic-keys
    On Fri, Aug 25, 2017 at 02:32:30PM +0800, Chen Zhong wrote:
    > This patch adds the device tree binding documentation for the MediaTek
    > pmic keys found on PMIC MT6397/MT6323.
    >
    > Signed-off-by: Chen Zhong <chen.zhong@mediatek.com>
    > ---
    > .../devicetree/bindings/input/mtk-pmic-keys.txt | 38 ++++++++++++++++++++
    > 1 file changed, 38 insertions(+)
    > create mode 100644 Documentation/devicetree/bindings/input/mtk-pmic-keys.txt
    >
    > diff --git a/Documentation/devicetree/bindings/input/mtk-pmic-keys.txt b/Documentation/devicetree/bindings/input/mtk-pmic-keys.txt
    > new file mode 100644
    > index 0000000..100ec44
    > --- /dev/null
    > +++ b/Documentation/devicetree/bindings/input/mtk-pmic-keys.txt
    > @@ -0,0 +1,38 @@
    > +MediaTek MT6397/MT6323 PMIC Keys Device Driver
    > +
    > +There are two key functions provided by MT6397/MT6323 PMIC, pwrkey
    > +and homekey. The key functions are defined as the subnode of the function
    > +node provided by MT6397/MT6323 PMIC that is being defined as one kind
    > +of Muti-Function Device (MFD)
    > +
    > +For MT6397/MT6323 MFD bindings see:
    > +Documentation/devicetree/bindings/mfd/mt6397.txt
    > +
    > +Required properties:
    > +- compatible: "mediatek,mt6397-keys" or "mediatek,mt6323-keys"
    > +- linux,keycodes: Specifies the numeric keycode values to
    > + be used for reporting keys presses. The array can
    > + contain up to 2 entries.
    > +
    > +Optional Properties:
    > +- wakeup-source: each key can be used as a wakeup source.

    wakeup-source is defined as a boolean.

    > +- mediatek,long-press-mode: Long press key shutdown setting, 1 for
    > + pwrkey only, 2 for pwrkey/homekey together, others for disabled.
    > +- debounce-interval: Long press key shutdown debouncing interval time
    > + in seconds. 0/1/2/3 for 8/11/14/5 seconds. If not specified defaults to 0.
    > +
    > +Example:
    > +
    > + pmic: mt6397 {
    > + compatible = "mediatek,mt6397";
    > +
    > + ...
    > +
    > + mt6397keys: mt6397keys {
    > + compatible = "mediatek,mt6397-keys";
    > + linux,keycodes = <KEY_POWER>, <KEY_VOLUMEDOWN>;
    > + wakeup-source = <1>, <0>;
    > + mediatek,long-press-mode = <1>;
    > + debounce-interval = <0>;
    > + };
    > + };
    > --
    > 1.7.9.5
    >

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