Re: [rtc-linux] [PATCH] rtc: s3c: Document required clocks in the DT binding
From: Krzysztof Kozlowski <hidden>
Date: 2016-02-14 06:34:14
Also in:
linux-rtc, linux-samsung-soc, lkml
W dniu 10.02.2016 o 02:23, Javier Martinez Canillas pisze:
The S3C Real Time Clock driver requires the clock and source clock to be defined in the device node but that requirement is not documented.
+Cc: Alessandro Zummo No, not entirely. The samsung,s3c6410-rtc needs rtc and rtc_src clocks but rest of compatible devices need only rtc clock. Best regards, Krzysztof
quoted hunk ↗ jump to hunk
Signed-off-by: Javier Martinez Canillas <redacted> --- Documentation/devicetree/bindings/rtc/s3c-rtc.txt | 6 ++++++ 1 file changed, 6 insertions(+)diff --git a/Documentation/devicetree/bindings/rtc/s3c-rtc.txt b/Documentation/devicetree/bindings/rtc/s3c-rtc.txt index ac2fcd6ff4b8..1068ffce9f91 100644 --- a/Documentation/devicetree/bindings/rtc/s3c-rtc.txt +++ b/Documentation/devicetree/bindings/rtc/s3c-rtc.txt@@ -14,6 +14,10 @@ Required properties: interrupt number is the rtc alarm interrupt and second interrupt number is the rtc tick interrupt. The number of cells representing a interrupt depends on the parent interrupt controller. +- clocks: Must contain a list of phandle and clock specifier for the rtc + and source clocks. +- clock-names: Must contain "rtc" and "rtc_src" entries sorted in the + same order as the clocks property. Example:@@ -21,4 +25,6 @@ Example: compatible = "samsung,s3c6410-rtc"; reg = <0x10070000 0x100>; interrupts = <44 0 45 0>; + clocks = <&clock CLK_RTC>, <&s2mps11_osc S2MPS11_CLK_AP>; + clock-names = "rtc", "rtc_src"; };
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