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dt-bindings: update device tree binding for Allwinner PRCM CCUs

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Many Allwinner SoCs after A31 have a CCU in PRCM block.

Give the ones on H3 and A64 compatible strings.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Icenowy Zheng 2017-04-04 17:50:56 +08:00 committed by Maxime Ripard
parent b0f0daa8fe
commit d4879bda91
1 changed files with 16 additions and 1 deletions
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17
Documentation/devicetree/bindings/clock/sunxi-ccu.txt
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@ -7,9 +7,11 @@ Required properties :
- "allwinner,sun8i-a23-ccu"
- "allwinner,sun8i-a33-ccu"
- "allwinner,sun8i-h3-ccu"
- "allwinner,sun8i-h3-r-ccu"
- "allwinner,sun8i-v3s-ccu"
- "allwinner,sun9i-a80-ccu"
- "allwinner,sun50i-a64-ccu"
- "allwinner,sun50i-a64-r-ccu"
- "allwinner,sun50i-h5-ccu"
- reg: Must contain the registers base address and length
@ -20,7 +22,10 @@ Required properties :
- #clock-cells : must contain 1
- #reset-cells : must contain 1
Example:
For the PRCM CCUs on H3/A64, one more clock is needed:
- "iosc": the SoC's internal frequency oscillator
Example for generic CCU:
ccu: clock@01c20000 {
compatible = "allwinner,sun8i-h3-ccu";
reg = <0x01c20000 0x400>;
@ -29,3 +34,13 @@ ccu: clock@01c20000 {
#clock-cells = <1>;
#reset-cells = <1>;
};
Example for PRCM CCU:
r_ccu: clock@01f01400 {
compatible = "allwinner,sun50i-a64-r-ccu";
reg = <0x01f01400 0x100>;
clocks = <&osc24M>, <&osc32k>, <&iosc>;
clock-names = "hosc", "losc", "iosc";
#clock-cells = <1>;
#reset-cells = <1>;
};