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From:   Chen-Yu Tsai <wens@csie.org>
To:     Maxime Ripard <maxime.ripard@bootlin.com>,
        Alexandre Belloni <alexandre.belloni@bootlin.com>,
        Alessandro Zummo <a.zummo@towertech.it>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>
Cc:     Chen-Yu Tsai <wens@csie.org>, linux-arm-kernel@lists.infradead.org,
        linux-rtc@vger.kernel.org, linux-clk@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-sunxi@googlegroups.com
Subject: [PATCH 04/15] dt-bindings: rtc: sun6i-rtc: Export internal RC oscillator
Date:   Wed, 28 Nov 2018 17:30:01 +0800
Message-Id: <20181128093013.24442-5-wens@csie.org>
In-Reply-To: <20181128093013.24442-1-wens@csie.org>
References: <20181128093013.24442-1-wens@csie.org>
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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 <wens@csie.org>
---
 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