dt-bindings: mfd: Add bindings for the keys as subnode of PMIC

This patch adds documentation for device tree bindings for keys support
as the subnode of MT6397/MT6323 PMIC.

Signed-off-by: Chen Zhong <chen.zhong@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Chen Zhong 2017-10-25 21:16:02 +08:00 committed by Lee Jones
parent 61217795de
commit 8f59e8cb90
1 changed files with 6 additions and 0 deletions

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@ -7,6 +7,7 @@ MT6397/MT6323 is a multifunction device with the following sub modules:
- GPIO
- Clock
- LED
- Keys
It is interfaced to host controller using SPI interface by a proprietary hardware
called PMIC wrapper or pwrap. MT6397/MT6323 MFD is a child device of pwrap.
@ -40,6 +41,11 @@ Optional subnodes:
- compatible: "mediatek,mt6323-led"
see Documentation/devicetree/bindings/leds/leds-mt6323.txt
- keys
Required properties:
- compatible: "mediatek,mt6397-keys" or "mediatek,mt6323-keys"
see Documentation/devicetree/bindings/input/mtk-pmic-keys.txt
Example:
pwrap: pwrap@1000f000 {
compatible = "mediatek,mt8135-pwrap";