FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/clock/sprd,sc9860-clk.txt

     Spreadtrum SC9860 Clock Binding
     ------------------------
     
     Required properties:
     - compatible: should contain the following compatible strings:
             - "sprd,sc9860-pmu-gate"
             - "sprd,sc9860-pll"
             - "sprd,sc9860-ap-clk"
             - "sprd,sc9860-aon-prediv"
            - "sprd,sc9860-apahb-gate"
            - "sprd,sc9860-aon-gate"
            - "sprd,sc9860-aonsecure-clk"
            - "sprd,sc9860-agcp-gate"
            - "sprd,sc9860-gpu-clk"
            - "sprd,sc9860-vsp-clk"
            - "sprd,sc9860-vsp-gate"
            - "sprd,sc9860-cam-clk"
            - "sprd,sc9860-cam-gate"
            - "sprd,sc9860-disp-clk"
            - "sprd,sc9860-disp-gate"
            - "sprd,sc9860-apapb-gate"
    
    - #clock-cells: must be 1
    
    - clocks : Should be the input parent clock(s) phandle for the clock, this
               property here just simply shows which clock group the clocks'
               parents are in, since each clk node would represent many clocks
               which are defined in the driver.  The detailed dependency
               relationship (i.e. how many parents and which are the parents)
               are implemented in driver code.
    
    Optional properties:
    
    - reg:  Contain the registers base address and length. It must be configured
            only if no 'sprd,syscon' under the node.
    
    - sprd,syscon: phandle to the syscon which is in the same address area with
                   the clock, and so we can get regmap for the clocks from the
                   syscon device.
    
    Example:
    
            pmu_gate: pmu-gate {
                    compatible = "sprd,sc9860-pmu-gate";
                    sprd,syscon = <&pmu_regs>;
                    clocks = <&ext_26m>;
                    #clock-cells = <1>;
            };
    
            pll: pll {
                    compatible = "sprd,sc9860-pll";
                    sprd,syscon = <&ana_regs>;
                    clocks = <&pmu_gate 0>;
                    #clock-cells = <1>;
            };
    
            ap_clk: clock-controller@20000000 {
                    compatible = "sprd,sc9860-ap-clk";
                    reg = <0 0x20000000 0 0x400>;
                    clocks = <&ext_26m>, <&pll 0>,
                             <&pmu_gate 0>;
                    #clock-cells = <1>;
            };

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