netdev - Re: [PATCH v2 07/10] net: stmmac: dwmac-loongson: Add LS7A support

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Date: Thu, 27 Jul 2023 12:35:39 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Feiyang Chen <chenfeiyang@...ngson.cn>
Cc: hkallweit1@...il.com, peppe.cavallaro@...com,
	alexandre.torgue@...s.st.com, joabreu@...opsys.com,
	chenhuacai@...ngson.cn, linux@...linux.org.uk, dongbiao@...ngson.cn,
	loongson-kernel@...ts.loongnix.cn, netdev@...r.kernel.org,
	loongarch@...ts.linux.dev, chris.chenfeiyang@...il.com
Subject: Re: [PATCH v2 07/10] net: stmmac: dwmac-loongson: Add LS7A support

> +static int loongson_dwmac_probe(struct pci_dev *pdev,
> +				const struct pci_device_id *id)
>  {
> +	int ret, i, bus_id, phy_mode;
>  	struct plat_stmmacenet_data *plat;
> +	struct stmmac_pci_info *info;
>  	struct stmmac_resources res;
>  	struct device_node *np;
> -	int ret, i, phy_mode;
> -
> -	np = dev_of_node(&pdev->dev);
> -
> -	if (!np) {
> -		pr_info("dwmac_loongson_pci: No OF node\n");
> -		return -ENODEV;
> -	}
> -
> -	if (!of_device_is_compatible(np, "loongson, pci-gmac")) {
> -		pr_info("dwmac_loongson_pci: Incompatible OF node\n");
> -		return -ENODEV;
> -	}

There are a lot of changes here, and it is not easy to review.  I
would suggest you first do a refactoring patch, moving all handling of
DT into a helper. Since it is just moving code around, it should be
easy to review. Then you can add support for platforms which don't
support DT.

	Andrew