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[PATCH v4 1/5] dt-bindings: update device tree binding for Allwinner PRCM CCUs

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From: Icenowy Zheng <icenowy@aosc.xyz>

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>
---
Changes in v4:
- Add Rob's ACK.
Changes in v3:
- Removed frequency info of iosc in this device tree binding document.
Changes in v2:
- Add iosc for R_CCU's on H3/A64.

 Documentation/devicetree/bindings/clock/sunxi-ccu.txt | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
index 68512aa398a9..e9c5a1d9834a 100644
--- a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
@@ -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>;
+};
-- 
2.12.2

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[PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Icenowy Zheng <icenowy@aosc.io> - 2017-04-04 12:00 +0200
  [PATCH v4 1/5] dt-bindings: update device tree binding for Allwinner PRCM CCUs Icenowy Zheng <icenowy@aosc.io> - 2017-04-04 12:00 +0200
  [PATCH v4 2/5] clk: sunxi-ng: add support for PRCM CCUs Icenowy Zheng <icenowy@aosc.io> - 2017-04-04 12:00 +0200
  [PATCH v4 3/5] arm64: allwinner: a64: add r_ccu node Icenowy Zheng <icenowy@aosc.io> - 2017-04-04 12:20 +0200
  [PATCH v4 4/5] ARM: sunxi: h3/h5: switch apb0-related clocks to r_ccu Icenowy Zheng <icenowy@aosc.io> - 2017-04-04 12:40 +0200
  [PATCH v4 5/5] arm64: allwinner: a64: add R_PIO pinctrl node Icenowy Zheng <icenowy@aosc.io> - 2017-04-04 12:50 +0200
  Re: [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-04-04 17:50 +0200

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