[PATCH net] net: stmmac: dwmac-socfpga: Don't access SGMII adapter when not available

[Andrew Lunn]

On Tue, Nov 28, 2023 at 10:45:37AM +0100, Maxime Chevallier wrote:
> The SGMII adapter isn't present on all dwmac-socfpga implementations.
> Make sure we don't try to configure it if we don't have this adapter.

If it does not exist, why even try to call socfpga_sgmii_config()?

It seems like this test needs moving up the call stack. socfpga_gen5_set_phy_mode():

	if (phymode == PHY_INTERFACE_MODE_SGMII)
		if (dwmac->sgmii_adapter_base)
			socfpga_sgmii_config(dwmac, true);
		else
			return -EINVAL;
			
Same in socfpga_gen10_set_phy_mode()?

     Andrew