[PATCH v2 1/6] dt-bindings: clock: imx8m-anatop: support spread spectrum clocking
From: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Date: 2024-09-29 17:27:49
Also in:
imx, linux-clk, linux-devicetree, lkml
Subsystem:
common clk framework, nxp i.mx clock drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Michael Turquette, Stephen Boyd, Abel Vesa, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
The patch adds the DT bindings for enabling and tuning spread spectrum clocking generation. Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> --- Changes in v2: - Add "allOf:" and place it after "required:" block, like in the example schema. - Move the properties definition to the top-level. - Drop unit types as requested by the "make dt_binding_check" command. .../bindings/clock/fsl,imx8m-anatop.yaml | 45 +++++++++++++++++++ 1 file changed, 45 insertions(+)
diff --git a/Documentation/devicetree/bindings/clock/fsl,imx8m-anatop.yaml b/Documentation/devicetree/bindings/clock/fsl,imx8m-anatop.yaml
index bbd22e95b319..a142c04fef00 100644
--- a/Documentation/devicetree/bindings/clock/fsl,imx8m-anatop.yaml
+++ b/Documentation/devicetree/bindings/clock/fsl,imx8m-anatop.yaml@@ -33,11 +33,56 @@ properties: '#clock-cells': const: 1 + fsl,ssc-clocks: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: + List of phandle and clock specifier pairs of PLLs with spread + spectrum generation hardware capability. + maxItems: 4 + + fsl,ssc-modfreq-hz: + description: + The values of modulation frequency (Hz unit) of spread spectrum + clocking for each PLL. + maxItems: 4 + + fsl,ssc-modrate-percent: + description: + The percentage values of modulation rate of spread spectrum + clocking for each PLL. + maxItems: 4 + + fsl,ssc-modmethod: + $ref: /schemas/types.yaml#/definitions/string-array + description: + The modulation techniques of spread spectrum clocking for + each PLL. + oneOf: + - enum: + - down-spread + - up-spread + - center-spread + maxItems: 4 + required: - compatible - reg - '#clock-cells' +allOf: + - if: + not: + properties: + compatible: + contains: + const: fsl,imx8mm-anatop + then: + properties: + fsl,ssc-clocks: false + fsl,ssc-modfreq-hz: false + fsl,ssc-modrate-percent: false + fsl,ssc-modmethod: false + additionalProperties: false examples:
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2.43.0