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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2015-06-12 08:55:30 +0200 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2015-07-06 10:10:22 +0200 |
| commit | 8e71c68074ff37348d586c87b0ee530e7440b094 (patch) | |
| tree | 352b5fdb9ba64ea4cbf011c7d9418c410caf7b1d /drivers/phy | |
| parent | 3bfe76806f705a24b82bc43c84c8506f3a44f77b (diff) | |
| download | op-kernel-dev-8e71c68074ff37348d586c87b0ee530e7440b094.zip op-kernel-dev-8e71c68074ff37348d586c87b0ee530e7440b094.tar.gz | |
phy: tusb1210: make better use of gpiod API
Since 39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions)
which appeared in v3.17-rc1, the gpiod_get* functions take an additional
parameter that allows to specify direction and initial value for output.
Furthermore there is devm_gpiod_get_optional which is designed to get
optional gpios.
Simplify driver accordingly.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/phy-tusb1210.c | 30 |
1 files changed, 12 insertions, 18 deletions
diff --git a/drivers/phy/phy-tusb1210.c b/drivers/phy/phy-tusb1210.c index 07efdd3..93dd45f 100644 --- a/drivers/phy/phy-tusb1210.c +++ b/drivers/phy/phy-tusb1210.c @@ -61,32 +61,26 @@ static struct phy_ops phy_ops = { static int tusb1210_probe(struct ulpi *ulpi) { - struct gpio_desc *gpio; struct tusb1210 *tusb; u8 val, reg; - int ret; tusb = devm_kzalloc(&ulpi->dev, sizeof(*tusb), GFP_KERNEL); if (!tusb) return -ENOMEM; - gpio = devm_gpiod_get(&ulpi->dev, "reset"); - if (!IS_ERR(gpio)) { - ret = gpiod_direction_output(gpio, 0); - if (ret) - return ret; - gpiod_set_value_cansleep(gpio, 1); - tusb->gpio_reset = gpio; - } + tusb->gpio_reset = devm_gpiod_get_optional(&ulpi->dev, "reset", + GPIOD_OUT_LOW); + if (IS_ERR(tusb->gpio_reset)) + return PTR_ERR(tusb->gpio_reset); - gpio = devm_gpiod_get(&ulpi->dev, "cs"); - if (!IS_ERR(gpio)) { - ret = gpiod_direction_output(gpio, 0); - if (ret) - return ret; - gpiod_set_value_cansleep(gpio, 1); - tusb->gpio_cs = gpio; - } + gpiod_set_value_cansleep(tusb->gpio_reset, 1); + + tusb->gpio_cs = devm_gpiod_get_optional(&ulpi->dev, "cs", + GPIOD_OUT_LOW); + if (IS_ERR(tusb->gpio_cs)) + return PTR_ERR(tusb->gpio_cs); + + gpiod_set_value_cansleep(tusb->gpio_cs, 1); /* * VENDOR_SPECIFIC2 register in TUSB1210 can be used for configuring eye |
