Subject: [PATCH 04/10] net: stmmac: sunxi platfrom extensions for GMAC in Allwinner A20 SoC's

From: [email-masked] (Sergei Shtylyov)
Date: Mon, 09 Dec 2013 17:44:48 +0400

Hello.

On 09-12-2013 15:21, srinivas kandagatla wrote:

>> +static int sun7i_gmac_init(struct platform_device *pdev)
>> +{
>> +	struct resource *res;
>> +	struct device *dev = &pdev->dev;
>> +	void __iomem *addr = NULL;
>> +	struct plat_stmmacenet_data *plat_dat = NULL;

    No need to initialize it since you're assigning to it right below.

>> +	u32 priv_clk_reg;
>> +
>> +	plat_dat = dev_get_platdata(&pdev->dev);
>> +	if (!plat_dat)
>> +		return -EINVAL;

> dev_get_platdata will return NULL for DT, So this function will fail all
> the time.

    Indeed, unless the probe() method assigns it from the 'data' field of
'struct of_device_id'.

> How is it supposed to work?
> Am I missing some thing?

    Look at stmmac_pltfr_probe().

> --srini

WBR, Sergei