Commit 4029ea3a authored by Andrew Lunn's avatar Andrew Lunn Committed by David S. Miller
Browse files

net: phy: mdio-gpio: Parse properties directly into bitbang structure 



The same parsing code can be used for both OF and platform devices, if
the platform device uses a gpiod_lookup_table. Parse these properties
directly into the bitbang structure, rather than use an intermediate
platform data structure.

Signed-off-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fb766421

drivers/net/phy/mdio-gpio.c

+16 −29
Original line number Diff line number Diff line
@@ -35,27 +35,20 @@ struct mdio_gpio_info { 
	struct gpio_desc *mdc, *mdio, *mdo;

};



static void *mdio_gpio_of_get_data(struct device *dev)

static int mdio_gpio_get_data(struct device *dev,

			      struct mdio_gpio_info *bitbang)

{

	struct mdio_gpio_platform_data *pdata;

	bitbang->mdc = devm_gpiod_get_index(dev, NULL, 0, GPIOD_OUT_LOW);

	if (IS_ERR(bitbang->mdc))

		return PTR_ERR(bitbang->mdc);



	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);

	if (!pdata)

		return NULL;



	pdata->mdc = devm_gpiod_get_index(dev, NULL, 0, GPIOD_OUT_LOW);

	if (IS_ERR(pdata->mdc))

		return ERR_CAST(pdata->mdc);



	pdata->mdio = devm_gpiod_get_index(dev, NULL, 1, GPIOD_IN);

	if (IS_ERR(pdata->mdio))

		return ERR_CAST(pdata->mdio);

	bitbang->mdio = devm_gpiod_get_index(dev, NULL, 1, GPIOD_IN);

	if (IS_ERR(bitbang->mdio))

		return PTR_ERR(bitbang->mdio);



	pdata->mdo = devm_gpiod_get_index_optional(dev, NULL, 2, GPIOD_OUT_LOW);

	if (IS_ERR(pdata->mdo))

		return ERR_CAST(pdata->mdo);



	return pdata;

	bitbang->mdo = devm_gpiod_get_index_optional(dev, NULL, 2,

						     GPIOD_OUT_LOW);

	return PTR_ERR_OR_ZERO(bitbang->mdo);

}



static void mdio_dir(struct mdiobb_ctrl *ctrl, int dir)
@@ -116,15 +109,11 @@ static const struct mdiobb_ops mdio_gpio_ops = { 


static struct mii_bus *mdio_gpio_bus_init(struct device *dev,

					  struct mdio_gpio_info *bitbang,

					  struct mdio_gpio_platform_data *pdata,

					  int bus_id)

{

	struct mii_bus *new_bus;



	bitbang->ctrl.ops = &mdio_gpio_ops;

	bitbang->mdc = pdata->mdc;

	bitbang->mdio = pdata->mdio;

	bitbang->mdo = pdata->mdo;



	new_bus = alloc_mdio_bitbang(&bitbang->ctrl);

	if (!new_bus)
@@ -160,7 +149,6 @@ static void mdio_gpio_bus_destroy(struct device *dev) 


static int mdio_gpio_probe(struct platform_device *pdev)

{

	struct mdio_gpio_platform_data *pdata;

	struct mdio_gpio_info *bitbang;

	struct mii_bus *new_bus;

	int ret, bus_id;
@@ -169,22 +157,21 @@ static int mdio_gpio_probe(struct platform_device *pdev) 
	if (!bitbang)

		return -ENOMEM;



	ret = mdio_gpio_get_data(&pdev->dev, bitbang);

	if (ret)

		return ret;



	if (pdev->dev.of_node) {

		pdata = mdio_gpio_of_get_data(&pdev->dev);

		bus_id = of_alias_get_id(pdev->dev.of_node, "mdio-gpio");

		if (bus_id < 0) {

			dev_warn(&pdev->dev, "failed to get alias id\n");

			bus_id = 0;

		}

	} else {

		pdata = dev_get_platdata(&pdev->dev);

		bus_id = pdev->id;

	}



	if (!pdata)

		return -ENODEV;



	new_bus = mdio_gpio_bus_init(&pdev->dev, bitbang, pdata, bus_id);

	new_bus = mdio_gpio_bus_init(&pdev->dev, bitbang, bus_id);

	if (!new_bus)

		return -ENODEV;

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