| 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 |
| register-mapped composite clock with multiple different sub-types; |
| |
| a multiplexer clock with multiple input clock signals or parents, one |
| of which can be selected as output, this behaves exactly as [2] |
| |
| 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 |
| clock, this behaves exactly as [4] |
| |
| The binding must provide a list of the component clocks that shall be |
| merged to this clock. The component clocks shall be of one of the |
| "ti,*composite*-clock" types. |
| |
| [1] Documentation/devicetree/bindings/clock/clock-bindings.txt |
| [2] Documentation/devicetree/bindings/clock/ti/mux.txt |
| [3] Documentation/devicetree/bindings/clock/ti/divider.txt |
| [4] Documentation/devicetree/bindings/clock/ti/gate.txt |
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| Required properties: |
| - compatible : shall be: "ti,composite-clock" |
| - clocks : link phandles of component clocks |
| - #clock-cells : from common clock binding; shall be set to 0. |
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| Examples: |
| |
| usb_l4_gate_ick: usb_l4_gate_ick { |
| #clock-cells = <0>; |
| compatible = "ti,composite-interface-clock"; |
| clocks = <&l4_ick>; |
| ti,bit-shift = <5>; |
| reg = <0x0a10>; |
| }; |
| |
| usb_l4_div_ick: usb_l4_div_ick { |
| #clock-cells = <0>; |
| compatible = "ti,composite-divider-clock"; |
| clocks = <&l4_ick>; |
| ti,bit-shift = <4>; |
| ti,max-div = <1>; |
| reg = <0x0a40>; |
| ti,index-starts-at-one; |
| }; |
| |
| usb_l4_ick: usb_l4_ick { |
| #clock-cells = <0>; |
| compatible = "ti,composite-clock"; |
| clocks = <&usb_l4_gate_ick>, <&usb_l4_div_ick>; |
| }; |