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

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Message-ID: <52A5A7B2.4000509@st.com>
Date:	Mon, 9 Dec 2013 11:21:22 +0000
From:	srinivas kandagatla <srinivas.kandagatla@...com>
To:	Chen-Yu Tsai <wens@...e.org>
Cc:	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	<netdev@...r.kernel.org>, Rob Herring <rob.herring@...xeda.com>,
	<devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-sunxi@...glegroups.com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>
Subject: Re: [PATCH 04/10] net: stmmac: sunxi platfrom extensions for GMAC
 in Allwinner A20 SoC's

On 06/12/13 17:29, Chen-Yu Tsai 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;
> +	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.

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

--srini
> +
> +	/* Get GMAC clock register in CCU */
> +	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
> +	addr = devm_ioremap_resource(dev, res);
> +	if (IS_ERR(addr))

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