Document DT files bindings for Hisilicon hi6220 clock.
Signed-off-by: Bintian Wang <bintian.wang@xxxxxxxxxx>
Acked-by: Haojian Zhuang <haojian.zhuang@xxxxxxxxxx>
Suggested-by: Arnd Bergmann <arnd@xxxxxxxx>
Acked-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
---
.../devicetree/bindings/clock/hi6220-clock.txt | 34 ++++++++++++++++++++++
1 file changed, 34 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/hi6220-clock.txt
diff --git a/Documentation/devicetree/bindings/clock/hi6220-clock.txt b/Documentation/devicetree/bindings/clock/hi6220-clock.txt
new file mode 100644
index 0000000..53ddb19
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+* Hisilicon Hi6220 Clock Controller
+
+Clock control registers reside in different Hi6220 system controllers,
+please refer the following document to know more about the binding rules
+for these system controllers:
+
+Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
+
+Required Properties:
+
+- compatible: the compatible should be one of the following strings to
+ indicate the clock controller functionality.
+
+ - "hisilicon,hi6220-aoctrl"
+ - "hisilicon,hi6220-sysctrl"
+ - "hisilicon,hi6220-mediactrl"
+ - "hisilicon,hi6220-pmctrl"
+
+- reg: physical base address of the controller and length of memory mapped
+ region.
+
+- #clock-cells: should be 1.
+
+For example:
+ sys_ctrl: sys_ctrl {
+ compatible = "hisilicon,hi6220-sysctrl", "syscon";
+ reg = <0x0 0xf7030000 0x0 0x2000>;
+ #clock-cells = <1>;
+ };
+
+Each clock is assigned an identifier and client nodes use this identifier
+to specify the clock which they consume.
+
+All these identifier could be found in <dt-bindings/clock/hi6220-clock.h>.
--
1.9.1
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