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authorMaxime Ripard <maxime.ripard@free-electrons.com>2016-06-29 21:05:22 +0200
committerMichael Turquette <mturquette@baylibre.com>2016-07-08 18:04:21 -0700
commitc0692d68a88a108fd0a34f0a9bc9c3781b49d6d6 (patch)
tree5033774d07b10bb29416c76ab212ace1baec7d46
parent1a695a905c18548062509178b98bc91e67510864 (diff)
dt-bindings: sunxi: Add CCU binding documentation
Introduce a new binding with its documentation for the brand new clock sub-framework. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Michael Turquette <mturquette@baylibre.com> Link: lkml.kernel.org/r/20160629190535.11855-2-maxime.ripard@free-electrons.com
-rw-r--r--Documentation/devicetree/bindings/clock/sunxi-ccu.txt24
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diff --git a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
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+++ b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
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+Allwinner Clock Control Unit Binding
+------------------------------------
+
+Required properties :
+- compatible: must contain one of the following compatible:
+ - "allwinner,sun8i-h3-ccu"
+
+- reg: Must contain the registers base address and length
+- clocks: phandle to the oscillators feeding the CCU. Two are needed:
+ - "hosc": the high frequency oscillator (usually at 24MHz)
+ - "losc": the low frequency oscillator (usually at 32kHz)
+- clock-names: Must contain the clock names described just above
+- #clock-cells : must contain 1
+- #reset-cells : must contain 1
+
+Example:
+ccu: clock@01c20000 {
+ compatible = "allwinner,sun8i-h3-ccu";
+ reg = <0x01c20000 0x400>;
+ clocks = <&osc24M>, <&osc32k>;
+ clock-names = "hosc", "losc";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+};