linux-kernel - [PATCH v1 02/16] dt-bindings: rtc: mediatek: add bindings for PMIC RTC

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Date:   Fri, 23 Mar 2018 17:14:59 +0800
From:   <sean.wang@...iatek.com>
To:     <robh+dt@...nel.org>, <mark.rutland@....com>, <sre@...nel.org>,
        <lee.jones@...aro.org>, <a.zummo@...ertech.it>,
        <alexandre.belloni@...e-electrons.com>, <eddie.huang@...iatek.com>
CC:     <devicetree@...r.kernel.org>, <linux-rtc@...r.kernel.org>,
        <linux-pm@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, Sean Wang <sean.wang@...iatek.com>
Subject: [PATCH v1 02/16] dt-bindings: rtc: mediatek: add bindings for PMIC RTC

From: Sean Wang <sean.wang@...iatek.com>

Add device-tree binding for MediaTek PMIC based RTC.

Signed-off-by: Sean Wang <sean.wang@...iatek.com>
---
 .../devicetree/bindings/rtc/rtc-mt6397.txt         | 39 ++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rtc/rtc-mt6397.txt

diff --git a/Documentation/devicetree/bindings/rtc/rtc-mt6397.txt b/Documentation/devicetree/bindings/rtc/rtc-mt6397.txt
new file mode 100644
index 0000000..83ff6be
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/rtc-mt6397.txt
@@ -0,0 +1,39 @@
+Device-Tree bindings for MediaTek PMIC based RTC
+
+MediaTek PMIC based RTC is an independent function of MediaTek PMIC which
+is working as a multi-function device (MFD). And the RTC can be configured and
+set up via PMIC wrapper bus. Which is also common resource shared among the
+other functions present on the PMIC.
+
+For MediaTek PMIC wrapper bus bindings, see:
+Documentation/devicetree/bindings/soc/mediatek/pwrap.txt
+
+Required parent node:
+- pmic
+  For MediaTek PMIC MFD bindings, see:
+  Documentation/devicetree/bindings/mfd/mt6397.txt
+
+Required properties:
+- compatible: Should be one of follows
+	"mediatek,mt6323-rtc": for MT6323 PMIC
+	"mediatek,mt6397-rtc": for MT6397 PMIC
+
+Optional child node:
+- power-off
+  For Power-Off Device for MediaTek PMIC RTC bindings, see:
+  Documentation/devicetree/bindings/power/reset/mt6397-rtc-poweroff.txt
+
+Example:
+
+	pmic {
+		compatible = "mediatek,mt6323";
+
+		...
+		rtc {
+			compatible = "mediatek,mt6323-rtc";
+
+			power-off {
+				compatible = "mediatek,mt6323-rtc-poweroff";
+			};
+		};
+};
-- 
2.7.4