[PATCHv1 3/3] net: stmmac: dwmac-meson8b: Add reset controller for ethernet phy

Andrew Lunn andrew at lunn.ch
Thu Jul 29 13:21:01 PDT 2021


> @@ -465,6 +478,13 @@ static int meson8b_dwmac_probe(struct platform_device *pdev)
>  		goto err_remove_config_dt;
>  	}
>  
> +	dwmac->eth_reset = devm_reset_control_get_exclusive(dwmac->dev, "ethreset");
> +	if (IS_ERR_OR_NULL(dwmac->eth_reset)) {
> +		dev_err(dwmac->dev, "Failed to get Ethernet reset\n");
> +		ret = PTR_ERR(dwmac->eth_reset);
> +		goto err_remove_config_dt;
> +	}
> +

Hi Anand

Since this is a new property, you need to handle it not being in the
DT blob. You probably need to use
devm_reset_control_get_optinal_exclusive()

	Andrew



More information about the linux-amlogic mailing list