[PATCH v4 1/3] dt-bindings: PCI: dwc: Add one more reference clock
Frank Li
Frank.li at nxp.com
Thu Jun 26 11:31:41 PDT 2025
On Thu, Jun 26, 2025 at 03:38:02PM +0800, Richard Zhu wrote:
> Add one more reference clock "extref" to be onhalf the reference clock
> that comes from external crystal oscillator.
>
> Signed-off-by: Richard Zhu <hongxing.zhu at nxp.com>
> ---
> .../devicetree/bindings/pci/snps,dw-pcie-common.yaml | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/pci/snps,dw-pcie-common.yaml b/Documentation/devicetree/bindings/pci/snps,dw-pcie-common.yaml
> index 34594972d8db..ee09e0d3bbab 100644
> --- a/Documentation/devicetree/bindings/pci/snps,dw-pcie-common.yaml
> +++ b/Documentation/devicetree/bindings/pci/snps,dw-pcie-common.yaml
> @@ -105,6 +105,12 @@ properties:
> define it with this name (for instance pipe, core and aux can
> be connected to a single source of the periodic signal).
> const: ref
> + - description:
> + Some dwc wrappers (like i.MX95 PCIes) have two reference clock
> + inputs, one from internal PLL, the other from off chip crystal
> + oscillator. Use extref clock name to be onhalf of the reference
> + clock comes form external crystal oscillator.
typo form, should be 'from'
Frank
> + const: extref
> - description:
> Clock for the PHY registers interface. Originally this is
> a PHY-viewport-based interface, but some platform may have
> --
> 2.37.1
>
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