| Message ID | 1432806373-17372-2-git-send-email-u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Johannes Berg |
| Headers | show |
On Thu, 2015-05-28 at 11:46 +0200, Uwe Kleine-König wrote: > 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. > > Note this makes error checking more strict because only -ENOENT is > ignored when searching for the GPIOs which is good. > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Applied. johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c index d978f2f46ff3..d5d58d919552 100644 --- a/net/rfkill/rfkill-gpio.c +++ b/net/rfkill/rfkill-gpio.c @@ -112,21 +112,17 @@ static int rfkill_gpio_probe(struct platform_device *pdev) rfkill->clk = devm_clk_get(&pdev->dev, NULL); - gpio = devm_gpiod_get(&pdev->dev, "reset"); - if (!IS_ERR(gpio)) { - ret = gpiod_direction_output(gpio, 0); - if (ret) - return ret; - rfkill->reset_gpio = gpio; - } + gpio = devm_gpiod_get_optional(&pdev->dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(gpio)) + return PTR_ERR(gpio); - gpio = devm_gpiod_get(&pdev->dev, "shutdown"); - if (!IS_ERR(gpio)) { - ret = gpiod_direction_output(gpio, 0); - if (ret) - return ret; - rfkill->shutdown_gpio = gpio; - } + rfkill->reset_gpio = gpio; + + gpio = devm_gpiod_get_optional(&pdev->dev, "shutdown", GPIOD_OUT_LOW); + if (IS_ERR(gpio)) + return PTR_ERR(gpio); + + rfkill->shutdown_gpio = gpio; /* Make sure at-least one of the GPIO is defined and that * a name is specified for this instance
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. Note this makes error checking more strict because only -ENOENT is ignored when searching for the GPIOs which is good. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- net/rfkill/rfkill-gpio.c | 24 ++++++++++-------------- 1 file changed, 10 insertions(+), 14 deletions(-)