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Commit f4f8dfde authored by Joachim Eastwood's avatar Joachim Eastwood Committed by David S. Miller
Browse files

stmmac: add proper probe function to dwmac-lpc18xx 



By using a few functions from stmmac_platform we can now create
a proper probe function in this driver. By doing so we can drop
the OF match data and simplify the overall driver.

Signed-off-by: default avatarJoachim Eastwood <manabian@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 402dae0b

drivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c

+23 −36
Original line number Diff line number Diff line
@@ -25,66 +25,53 @@ 
# define LPC18XX_CREG_CREG6_ETHMODE_MII		0x0

# define LPC18XX_CREG_CREG6_ETHMODE_RMII	0x4



struct lpc18xx_dwmac_priv_data {

	struct regmap *reg;

	int interface;

};



static void *lpc18xx_dwmac_setup(struct platform_device *pdev)

static int lpc18xx_dwmac_probe(struct platform_device *pdev)

{

	struct lpc18xx_dwmac_priv_data *dwmac;

	struct plat_stmmacenet_data *plat_dat;

	struct stmmac_resources stmmac_res;

	struct regmap *reg;

	u8 ethmode;

	int ret;



	dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);

	if (!dwmac)

		return ERR_PTR(-ENOMEM);

	ret = stmmac_get_platform_resources(pdev, &stmmac_res);

	if (ret)

		return ret;



	dwmac->interface = of_get_phy_mode(pdev->dev.of_node);

	if (dwmac->interface < 0)

		return ERR_PTR(dwmac->interface);

	plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac);

	if (IS_ERR(plat_dat))

		return PTR_ERR(plat_dat);



	dwmac->reg = syscon_regmap_lookup_by_compatible("nxp,lpc1850-creg");

	if (IS_ERR(dwmac->reg)) {

		dev_err(&pdev->dev, "Syscon lookup failed\n");

		return dwmac->reg;

	}

	plat_dat->has_gmac = true;



	return dwmac;

	reg = syscon_regmap_lookup_by_compatible("nxp,lpc1850-creg");

	if (IS_ERR(reg)) {

		dev_err(&pdev->dev, "syscon lookup failed\n");

		return PTR_ERR(reg);

	}



static int lpc18xx_dwmac_init(struct platform_device *pdev, void *priv)

{

	struct lpc18xx_dwmac_priv_data *dwmac = priv;

	u8 ethmode;



	if (dwmac->interface == PHY_INTERFACE_MODE_MII) {

	if (plat_dat->interface == PHY_INTERFACE_MODE_MII) {

		ethmode = LPC18XX_CREG_CREG6_ETHMODE_MII;

	} else if (dwmac->interface == PHY_INTERFACE_MODE_RMII) {

	} else if (plat_dat->interface == PHY_INTERFACE_MODE_RMII) {

		ethmode = LPC18XX_CREG_CREG6_ETHMODE_RMII;

	} else {

		dev_err(&pdev->dev, "Only MII and RMII mode supported\n");

		return -EINVAL;

	}



	regmap_update_bits(dwmac->reg, LPC18XX_CREG_CREG6,

	regmap_update_bits(reg, LPC18XX_CREG_CREG6,

			   LPC18XX_CREG_CREG6_ETHMODE_MASK, ethmode);



	return 0;

	return stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);

}



static const struct stmmac_of_data lpc18xx_dwmac_data = {

	.has_gmac = 1,

	.setup = lpc18xx_dwmac_setup,

	.init = lpc18xx_dwmac_init,

};



static const struct of_device_id lpc18xx_dwmac_match[] = {

	{ .compatible = "nxp,lpc1850-dwmac", .data = &lpc18xx_dwmac_data },

	{ .compatible = "nxp,lpc1850-dwmac" },

	{ }

};

MODULE_DEVICE_TABLE(of, lpc18xx_dwmac_match);



static struct platform_driver lpc18xx_dwmac_driver = {

	.probe  = stmmac_pltfr_probe,

	.probe  = lpc18xx_dwmac_probe,

	.remove = stmmac_pltfr_remove,

	.driver = {

		.name           = "lpc18xx-dwmac",