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dt-bindings: rtc: mediatek: add bindings for MediaTek SoC based RTC

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Add device-tree binding for MediaTek SoC based RTC

Cc: devicetree@vger.kernel.org
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Sean Wang 2017-10-23 15:16:44 +08:00 • committed by Alexandre Belloni
parent bc3bee0252
commit 1901142ba8
1 changed files with 21 additions and 0 deletions
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Documentation/devicetree/bindings/rtc/rtc-mt7622.txt Normal file
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Device-Tree bindings for MediaTek SoC based RTC
Required properties:
- compatible : Should be
"mediatek,mt7622-rtc", "mediatek,soc-rtc" : for MT7622 SoC
- reg : Specifies base physical address and size of the registers;
- interrupts : Should contain the interrupt for RTC alarm;
- clocks : Specifies list of clock specifiers, corresponding to
entries in clock-names property;
- clock-names : Should contain "rtc" entries
Example:
rtc: rtc@10212800 {
compatible = "mediatek,mt7622-rtc",
"mediatek,soc-rtc";
reg = <0 0x10212800 0 0x200>;
interrupts = <GIC_SPI 129 IRQ_TYPE_LEVEL_LOW>;
clocks = <&topckgen CLK_TOP_RTC>;
clock-names = "rtc";
};