From mboxrd@z Thu Jan 1 00:00:00 1970 From: wens@csie.org (Chen-Yu Tsai) Date: Wed, 28 Nov 2018 17:30:01 +0800 Subject: [PATCH 04/15] dt-bindings: rtc: sun6i-rtc: Export internal RC oscillator In-Reply-To: <20181128093013.24442-1-wens@csie.org> References: <20181128093013.24442-1-wens@csie.org> Message-ID: <20181128093013.24442-5-wens@csie.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Experiments showed that on at least the H3/H5/A64 the RTC's internal oscillator also feeds the CPUS mux in the PRCM. Export this clock through the device tree, instead of having to use a dummy fixed-clock device node, for the PRCM to consume. This will properly describe the relationship between the clocks. Signed-off-by: Chen-Yu Tsai --- Documentation/devicetree/bindings/rtc/sun6i-rtc.txt | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt index 78c4fb472eb7..1bd37faadecb 100644 --- a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt +++ b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt @@ -24,7 +24,7 @@ Required properties: Required properties for new device trees - clocks : phandle to the 32kHz external oscillator -- clock-output-names : names of the two clock outputs. See below. +- clock-output-names : names of the three clock outputs. See below. - #clock-cells : must be equal to 1. The RTC provides the following clocks at the given indices: @@ -32,6 +32,7 @@ The RTC provides the following clocks at the given indices: - 1: LOSC external output, known as X32KFOUT in the datasheet. This clock is not available on the A31 and is deprecated for old device trees still using the "allwinner,sun6i-a31-rtc" compatible. +- 2: InternalOSC, or internal RC oscillator Example: -- 2.20.0.rc1