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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /Documentation/devicetree/bindings/clock/ti/composite.txt | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/clock/ti/composite.txt')
-rw-r--r-- | Documentation/devicetree/bindings/clock/ti/composite.txt | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/ti/composite.txt b/Documentation/devicetree/bindings/clock/ti/composite.txt new file mode 100644 index 000000000..33ac7c9ad --- /dev/null +++ b/Documentation/devicetree/bindings/clock/ti/composite.txt @@ -0,0 +1,57 @@ +Binding for TI composite clock. + +Binding status: Unstable - ABI compatibility may be broken in the future + +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] + +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 + +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. + +Optional properties: +- clock-output-names : from common clock binding. + +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>; +}; |