dt-bindings: rtc: sun6i-rtc: Export internal RC oscillator (9cd35586) · Commits · 戴 / test

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. Tested-by:

Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by:

Chen-Yu Tsai <wens@csie.org> Acked-by:

Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by:

Alexandre Belloni <alexandre.belloni@bootlin.com>

Documentation/devicetree/bindings/rtc/sun6i-rtc.txt

+2 −1

Original line number	Diff line number	Diff line
		@@ -24,7 +24,7 @@ Required properties:

		Required properties for new device trees
		- clocks : phandle to the 32kHz external oscillator
		- clock-output-names : names of up to two clock outputs. See below.
		- clock-output-names : names of up to 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 (A64/H3/H5 only)

		Example:

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