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| author |   Chen-Yu Tsai <wens@csie.org> | 2018-12-03 22:58:15 +0800 |
|---|---|---|
| committer |   Alexandre Belloni <alexandre.belloni@bootlin.com> | 2018-12-06 18:13:38 +0100 |
| commit | 9cd3558678385329709b6d52f639d1f918e04aae (patch) | |
| tree | 72ed92c2075f44bb171354cfb8510577e431e9f4 /Documentation/devicetree/bindings/rtc | |
| parent | dt-bindings: rtc: sun6i-rtc: Deprecate external clock output for A31 (diff) | |
| download | linux-dev-9cd3558678385329709b6d52f639d1f918e04aae.tar.xz linux-dev-9cd3558678385329709b6d52f639d1f918e04aae.zip | |
dt-bindings: rtc: sun6i-rtc: Export internal RC oscillator
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>
Diffstat (limited to 'Documentation/devicetree/bindings/rtc')
| -rw-r--r-- | Documentation/devicetree/bindings/rtc/sun6i-rtc.txt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt index dba4d32cfbad..ceb38abf1ea2 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 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: |