diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/smsc/smc91x.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c index 8678e39aba08..5a1a3e7c93e7 100644 --- a/drivers/net/ethernet/smsc/smc91x.c +++ b/drivers/net/ethernet/smsc/smc91x.c @@ -2204,27 +2204,18 @@ static int try_toggle_control_gpio(struct device *dev, int value, unsigned int nsdelay) { struct gpio_desc *gpio = *desc; + enum gpiod_flags flags = value ? GPIOD_OUT_LOW : GPIOD_OUT_HIGH; int res; - gpio = devm_gpiod_get_index(dev, name, index); - if (IS_ERR(gpio)) { - if (PTR_ERR(gpio) == -ENOENT) { - *desc = NULL; - return 0; - } - + gpio = devm_gpiod_get_index_optional(dev, name, index, flags); + if (IS_ERR(gpio)) return PTR_ERR(gpio); + + if (gpio) { + if (nsdelay) + usleep_range(nsdelay, 2 * nsdelay); + gpiod_set_value_cansleep(gpio, value); } - res = gpiod_direction_output(gpio, !value); - if (res) { - dev_err(dev, "unable to toggle gpio %s: %i\n", name, res); - devm_gpiod_put(dev, gpio); - gpio = NULL; - return res; - } - if (nsdelay) - usleep_range(nsdelay, 2 * nsdelay); - gpiod_set_value_cansleep(gpio, value); *desc = gpio; return 0; |