From: Josef Friedl <[email protected]> add documentation for pmic, rtc and power/reset devicetree bindings
Suggested-by: Frank Wunderlich <[email protected]> Signed-off-by: Josef Friedl <[email protected]> Signed-off-by: Frank Wunderlich <[email protected]> --- .../devicetree/bindings/mfd/mt6397.txt | 10 ++++++- .../bindings/power/reset/mt6323-poweroff.txt | 20 +++++++++++++ .../devicetree/bindings/rtc/rtc-mt6397.txt | 29 +++++++++++++++++++ 3 files changed, 58 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt create mode 100644 Documentation/devicetree/bindings/rtc/rtc-mt6397.txt diff --git a/Documentation/devicetree/bindings/mfd/mt6397.txt b/Documentation/devicetree/bindings/mfd/mt6397.txt index 0ebd08af777d..44acb9827716 100644 --- a/Documentation/devicetree/bindings/mfd/mt6397.txt +++ b/Documentation/devicetree/bindings/mfd/mt6397.txt @@ -8,6 +8,7 @@ MT6397/MT6323 is a multifunction device with the following sub modules: - Clock - LED - Keys +- Power controller 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. @@ -22,8 +23,10 @@ compatible: "mediatek,mt6397" or "mediatek,mt6323" Optional subnodes: - rtc - Required properties: + Required properties: Should be one of follows + - compatible: "mediatek,mt6323-rtc" - compatible: "mediatek,mt6397-rtc" + For details, see Documentation/devicetree/bindings/rtc/rtc-mt6397.txt - regulators Required properties: - compatible: "mediatek,mt6397-regulator" @@ -46,6 +49,11 @@ Optional subnodes: - compatible: "mediatek,mt6397-keys" or "mediatek,mt6323-keys" see Documentation/devicetree/bindings/input/mtk-pmic-keys.txt +- power-controller + Required properties: + - compatible: "mediatek,mt6323-pwrc" + For details, see Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt + Example: pwrap: pwrap@1000f000 { compatible = "mediatek,mt8135-pwrap"; diff --git a/Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt b/Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt new file mode 100644 index 000000000000..933f0c48e887 --- /dev/null +++ b/Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt @@ -0,0 +1,20 @@ +Device Tree Bindings for Power Controller on MediaTek PMIC + +The power controller which could be found on PMIC is responsible for externally +powering off or on the remote MediaTek SoC through the circuit BBPU. + +Required properties: +- compatible: Should be one of follows + "mediatek,mt6323-pwrc": for MT6323 PMIC + +Example: + + pmic { + compatible = "mediatek,mt6323"; + + ... + + power-controller { + compatible = "mediatek,mt6323-pwrc"; + }; + } diff --git a/Documentation/devicetree/bindings/rtc/rtc-mt6397.txt b/Documentation/devicetree/bindings/rtc/rtc-mt6397.txt new file mode 100644 index 000000000000..ebd1cf80dcc8 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/rtc-mt6397.txt @@ -0,0 +1,29 @@ +Device-Tree bindings for MediaTek PMIC based RTC + +MediaTek PMIC based RTC is an independent function of MediaTek PMIC that works +as a type of multi-function device (MFD). The RTC can be configured and set up +with PMIC wrapper bus which is a common resource shared with the other +functions found on the same PMIC. + +For MediaTek PMIC MFD bindings, see: +Documentation/devicetree/bindings/mfd/mt6397.txt + +For MediaTek PMIC wrapper bus bindings, see: +Documentation/devicetree/bindings/soc/mediatek/pwrap.txt + +Required properties: +- compatible: Should be one of follows + "mediatek,mt6323-rtc": for MT6323 PMIC + "mediatek,mt6397-rtc": for MT6397 PMIC + +Example: + + pmic { + compatible = "mediatek,mt6323"; + + ... + + rtc { + compatible = "mediatek,mt6323-rtc"; + }; + }; -- 2.17.1
