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authorManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>2018-09-20 23:01:00 -0700
committerStephen Boyd <sboyd@kernel.org>2018-10-16 14:46:56 -0700
commit3b6b13ede0e3129e4449a83dced7d7fd1cd32e8a (patch)
tree54de8809871be1717d1b94bc00b0c5ae9e31154f /Documentation/devicetree/bindings/clock/hi3670-clock.txt
parent5b394b2ddf0347bef56e50c69a58773c94343ff3 (diff)
dt-bindings: clk: hisilicon: Add bindings for Hi3670 clk
Add devicetree bindings for HiSilicon Hi3670 clock controller. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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+* Hisilicon Hi3670 Clock Controller
+
+The Hi3670 clock controller generates and supplies clock to various
+controllers within the Hi3670 SoC.
+
+Required Properties:
+
+- compatible: the compatible should be one of the following strings to
+ indicate the clock controller functionality.
+
+ - "hisilicon,hi3670-crgctrl"
+ - "hisilicon,hi3670-pctrl"
+ - "hisilicon,hi3670-pmuctrl"
+ - "hisilicon,hi3670-sctrl"
+ - "hisilicon,hi3670-iomcu"
+ - "hisilicon,hi3670-media1-crg"
+ - "hisilicon,hi3670-media2-crg"
+
+- reg: physical base address of the controller and length of memory mapped
+ region.
+
+- #clock-cells: should be 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/hi3670-clock.h>.
+
+Examples:
+ crg_ctrl: clock-controller@fff35000 {
+ compatible = "hisilicon,hi3670-crgctrl", "syscon";
+ reg = <0x0 0xfff35000 0x0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ uart0: serial@fdf02000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0 0xfdf02000 0x0 0x1000>;
+ interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3670_CLK_GATE_UART0>,
+ <&crg_ctrl HI3670_PCLK>;
+ clock-names = "uartclk", "apb_pclk";
+ };