Document support for clock-frequency and add details on why this property is needed and what values are supported. >From internal documentation, while other values are supported, the correct function of the MDIO bus is not assured hence add only the suggested supported values to the property enum. Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx> --- .../devicetree/bindings/net/qcom,ipq4019-mdio.yaml | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml b/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml index 3407e909e8a7..603dbfb95ac9 100644 --- a/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml +++ b/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml @@ -44,6 +44,16 @@ properties: items: - const: gcc_mdio_ahb_clk + clock-frequency: + description: + The MDIO bus clock that must be output by the MDIO bus hardware, if + absent, the default hardware values are used. + + MDC rate is feed by an external clock (fixed 100MHz) and is divider + internally. The default divider is /256 resulting in the default rate + applied of 390KHz. + enum: [ 390625, 781250, 1562500, 3125000, 6250000, 12500000 ] + required: - compatible - reg -- 2.43.0