55 lines
1.6 KiB
Plaintext
55 lines
1.6 KiB
Plaintext
Binding for TI composite clock.
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Binding status: Unstable - ABI compatibility may be broken in the future
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This binding uses the common clock binding[1]. It assumes a
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register-mapped composite clock with multiple different sub-types;
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a multiplexer clock with multiple input clock signals or parents, one
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of which can be selected as output, this behaves exactly as [2]
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an adjustable clock rate divider, this behaves exactly as [3]
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a gating function which can be used to enable and disable the output
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clock, this behaves exactly as [4]
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The binding must provide a list of the component clocks that shall be
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merged to this clock. The component clocks shall be of one of the
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"ti,*composite*-clock" types.
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[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
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[2] Documentation/devicetree/bindings/clock/ti/mux.txt
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[3] Documentation/devicetree/bindings/clock/ti/divider.txt
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[4] Documentation/devicetree/bindings/clock/ti/gate.txt
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Required properties:
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- compatible : shall be: "ti,composite-clock"
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- clocks : link phandles of component clocks
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- #clock-cells : from common clock binding; shall be set to 0.
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Examples:
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usb_l4_gate_ick: usb_l4_gate_ick {
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#clock-cells = <0>;
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compatible = "ti,composite-interface-clock";
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clocks = <&l4_ick>;
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ti,bit-shift = <5>;
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reg = <0x0a10>;
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};
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usb_l4_div_ick: usb_l4_div_ick {
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#clock-cells = <0>;
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compatible = "ti,composite-divider-clock";
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clocks = <&l4_ick>;
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ti,bit-shift = <4>;
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ti,max-div = <1>;
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reg = <0x0a40>;
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ti,index-starts-at-one;
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};
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usb_l4_ick: usb_l4_ick {
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#clock-cells = <0>;
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compatible = "ti,composite-clock";
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clocks = <&usb_l4_gate_ick>, <&usb_l4_div_ick>;
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};
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