dt-bindings: mfd: mt6397: Add compatibles for MT6331 RTC and keys

The MT6331 PMIC provides many sub modules: regulators, audio
codec, LED controller, keys, RTC and some GPIOs.
It is always paired with a MT6332 Companion PMIC, which provides
thermistors, WLEDs (display LED backlight), secondary AP cluster
regulators, modem clocks, battery charger and fuel gauge.

Add the necessary compatibles to start implementing the basics.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220617110728.90132-2-angelogioacchino.delregno@collabora.com

diff --git a/Documentation/devicetree/bindings/mfd/mt6397.txt b/Documentation/devicetree/bindings/mfd/mt6397.txt
index d59063503b0d94ee61ddfef0fd249045df95b883..0088442efca1afb58fb10a2cd26cba9aab3fd578 100644 (file)
--- a/Documentation/devicetree/bindings/mfd/mt6397.txt
+++ b/Documentation/devicetree/bindings/mfd/mt6397.txt
@@ -30,6 +30,7 @@ Optional subnodes:
 - rtc
        Required properties: Should be one of follows
                - compatible: "mediatek,mt6323-rtc"
+               - compatible: "mediatek,mt6331-rtc"
                - compatible: "mediatek,mt6358-rtc"
                - compatible: "mediatek,mt6397-rtc"
        For details, see ../rtc/rtc-mt6397.txt
@@ -53,8 +54,10 @@ Optional subnodes:
        see ../leds/leds-mt6323.txt
 
 - keys
-       Required properties:
-               - compatible: "mediatek,mt6397-keys" or "mediatek,mt6323-keys"
+       Required properties: Should be one of the following
+               - compatible: "mediatek,mt6323-keys"
+               - compatible: "mediatek,mt6331-keys"
+               - compatible: "mediatek,mt6397-keys"
        see ../input/mtk-pmic-keys.txt
 
 - power-controller