[RFC PATCH 2/2] net: stmmac: dwmac-sun8i: Allow runtime AC200/AC300 phy selection

[Russell King (Oracle)]

On Sun, May 25, 2025 at 06:29:22PM -0600, James Hilliard wrote:
> +	if (!nvmem_cell_read_u16(dev, "ac300", &val)) {
> +		const char *phy_name = (val & AC300_KEY) ? "ac300" : "ac200";
> +		int index = of_property_match_string(dev->of_node, "phy-names", phy_name);
> +		if (index < 0) {
> +			dev_err(dev, "PHY name not found in device tree\n");
> +			return -EINVAL;
> +		}
> +
> +		plat_dat->phy_node = of_parse_phandle(dev->of_node, "phys", index);
> +		if (!plat_dat->phy_node) {
> +			dev_err(dev, "Failed to get PHY node from phys property\n");
> +			return -EINVAL;
> +		}
> +	}

1. You are re-using the drivers/phy binding for ethernet PHYs driven by
   phylib here.
2. You need to update
   Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml
   in a separate patch.

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