[PATCH v6 RESEND 2/3] dt-bindings: input: mtk-pmic-keys: add MT6392 binding definition

[Fabien Parent]

Add the binding documentation of the mtk-pmic-keys for the MT6392 PMICs.

Signed-off-by: Fabien Parent <fparent@xxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---

v6:
	* No changes

v5:
	* rebased
	* Rename MT6397/MT6392/MT6323 into MT63XX to make it more readable when
	the list of support PMIC increase
	* Removed Reviewed-by from Rob Herring because of the new extra changes
	made to this patch
	* change the compatible for MT6392 to also contains MT6397 since MT6392 PMIC
	key driver is compatible with mt6397.

v4:
	* Patch was previously sent separately but merge to this patch series
	since there is a hard dependency on the MFD patch.

 .../devicetree/bindings/input/mtk-pmic-keys.txt     | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/mtk-pmic-keys.txt b/Documentation/devicetree/bindings/input/mtk-pmic-keys.txt
index 535d92885372..71c82687ab92 100644
--- a/Documentation/devicetree/bindings/input/mtk-pmic-keys.txt
+++ b/Documentation/devicetree/bindings/input/mtk-pmic-keys.txt
@@ -1,15 +1,18 @@
-MediaTek MT6397/MT6323 PMIC Keys Device Driver
+MediaTek MT63xx PMIC Keys Device Driver
 
-There are two key functions provided by MT6397/MT6323 PMIC, pwrkey
+There are two key functions provided by MT63xx 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
+node provided by MT63xx PMIC that is being defined as one kind
 of Muti-Function Device (MFD)
 
-For MT6397/MT6323 MFD bindings see:
+For MT63xx MFD bindings see:
 Documentation/devicetree/bindings/mfd/mt6397.txt
 
 Required properties:
-- compatible: "mediatek,mt6397-keys" or "mediatek,mt6323-keys"
+- compatible: Should be one of:
+	- "mediatek,mt6323-keys" for MT6323 PMIC
+	- "mediatek,mt6392-keys", "mediatek,mt6397-keys" for MT6392 PMIC
+	- "mediatek,mt6397-keys" for MT6397 PMIC
 - linux,keycodes: See Documentation/devicetree/bindings/input/input.yaml
 
 Optional Properties:
-- 
2.28.0