Re: [PATCH net-next v4 4/5] stmmac: intel: add phy-mode and fixed-link ACPI _DSD setting support

[Andrew Lunn]

> +	/* For fixed-link setup, we allow phy-mode setting */
> +	fwnode = dev_fwnode(&pdev->dev);
> +	if (fwnode) {
> +		const char *phy_mode;
> +
> +		if (!fwnode_property_read_string(fwnode, "phy-mode",
> +						 &phy_mode)) {
> +			if (!strcmp(phy_mode, "sgmii"))
> +				plat->phy_interface = PHY_INTERFACE_MODE_SGMII;
> +			if (!strcmp(phy_mode, "1000base-x"))
> +				plat->phy_interface = PHY_INTERFACE_MODE_1000BASEX;
> +		}

fwnode_get_phy_mode() and then validate the value afterwards.

      Andrew