diff options
Diffstat (limited to 'drivers/net/phy/spi_ks8995.c')
| -rw-r--r-- | drivers/net/phy/spi_ks8995.c | 69 |
1 files changed, 14 insertions, 55 deletions
diff --git a/drivers/net/phy/spi_ks8995.c b/drivers/net/phy/spi_ks8995.c index ff37f8ba6758..d4202d40d47a 100644 --- a/drivers/net/phy/spi_ks8995.c +++ b/drivers/net/phy/spi_ks8995.c @@ -17,7 +17,6 @@ #include <linux/device.h> #include <linux/gpio/consumer.h> #include <linux/of.h> -#include <linux/of_gpio.h> #include <linux/spi/spi.h> @@ -137,15 +136,10 @@ static const struct ks8995_chip_params ks8995_chip[] = { }, }; -struct ks8995_pdata { - int reset_gpio; - enum of_gpio_flags reset_gpio_flags; -}; - struct ks8995_switch { struct spi_device *spi; struct mutex lock; - struct ks8995_pdata *pdata; + struct gpio_desc *reset_gpio; struct bin_attribute regs_attr; const struct ks8995_chip_params *chip; int revision_id; @@ -401,24 +395,6 @@ err_out: return err; } -/* ks8995_parse_dt - setup platform data from devicetree - * @ks: pointer to switch instance - * - * Parses supported DT properties and sets up platform data - * accordingly. - */ -static void ks8995_parse_dt(struct ks8995_switch *ks) -{ - struct device_node *np = ks->spi->dev.of_node; - struct ks8995_pdata *pdata = ks->pdata; - - if (!np) - return; - - pdata->reset_gpio = of_get_named_gpio_flags(np, "reset-gpios", 0, - &pdata->reset_gpio_flags); -} - static const struct bin_attribute ks8995_registers_attr = { .attr = { .name = "registers", @@ -449,38 +425,22 @@ static int ks8995_probe(struct spi_device *spi) ks->spi = spi; ks->chip = &ks8995_chip[variant]; - if (ks->spi->dev.of_node) { - ks->pdata = devm_kzalloc(&spi->dev, sizeof(*ks->pdata), - GFP_KERNEL); - if (!ks->pdata) - return -ENOMEM; - - ks->pdata->reset_gpio = -1; - - ks8995_parse_dt(ks); + ks->reset_gpio = devm_gpiod_get_optional(&spi->dev, "reset", + GPIOD_OUT_HIGH); + err = PTR_ERR_OR_ZERO(ks->reset_gpio); + if (err) { + dev_err(&spi->dev, + "failed to get reset gpio: %d\n", err); + return err; } - if (!ks->pdata) - ks->pdata = spi->dev.platform_data; + err = gpiod_set_consumer_name(ks->reset_gpio, "switch-reset"); + if (err) + return err; /* de-assert switch reset */ - if (ks->pdata && gpio_is_valid(ks->pdata->reset_gpio)) { - unsigned long flags; - - flags = (ks->pdata->reset_gpio_flags == OF_GPIO_ACTIVE_LOW ? - GPIOF_ACTIVE_LOW : 0); - - err = devm_gpio_request_one(&spi->dev, - ks->pdata->reset_gpio, - flags, "switch-reset"); - if (err) { - dev_err(&spi->dev, - "failed to get reset-gpios: %d\n", err); - return -EIO; - } - - gpiod_set_value(gpio_to_desc(ks->pdata->reset_gpio), 0); - } + /* FIXME: this likely requires a delay */ + gpiod_set_value_cansleep(ks->reset_gpio, 0); spi_set_drvdata(spi, ks); @@ -524,8 +484,7 @@ static void ks8995_remove(struct spi_device *spi) sysfs_remove_bin_file(&spi->dev.kobj, &ks->regs_attr); /* assert reset */ - if (ks->pdata && gpio_is_valid(ks->pdata->reset_gpio)) - gpiod_set_value(gpio_to_desc(ks->pdata->reset_gpio), 1); + gpiod_set_value_cansleep(ks->reset_gpio, 1); } /* ------------------------------------------------------------------------ */ |