From a34c0a8bf8caae7a82de08dbcca2c7c11907c805 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Mon, 18 May 2015 22:45:06 +0200 Subject: [PATCH] power: reset: gpio-poweroff: let devm_gpiod_get set direction of gpio MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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. Signed-off-by: Uwe Kleine-König Reviewed-by: Linus Walleij Signed-off-by: Sebastian Reichel --- drivers/power/reset/gpio-poweroff.c | 25 ++++++++----------------- 1 file changed, 8 insertions(+), 17 deletions(-) diff --git a/drivers/power/reset/gpio-poweroff.c b/drivers/power/reset/gpio-poweroff.c index e5332f1db8a7..be3d81ff51cc 100644 --- a/drivers/power/reset/gpio-poweroff.c +++ b/drivers/power/reset/gpio-poweroff.c @@ -48,6 +48,7 @@ static void gpio_poweroff_do_poweroff(void) static int gpio_poweroff_probe(struct platform_device *pdev) { bool input = false; + enum gpiod_flags flags; /* If a pm_power_off function has already been added, leave it alone */ if (pm_power_off != NULL) { @@ -57,25 +58,15 @@ static int gpio_poweroff_probe(struct platform_device *pdev) return -EBUSY; } - reset_gpio = devm_gpiod_get(&pdev->dev, NULL); - if (IS_ERR(reset_gpio)) - return PTR_ERR(reset_gpio); - input = of_property_read_bool(pdev->dev.of_node, "input"); + if (input) + flags = GPIOD_IN; + else + flags = GPIOD_OUT_LOW; - if (input) { - if (gpiod_direction_input(reset_gpio)) { - dev_err(&pdev->dev, - "Could not set direction of reset GPIO to input\n"); - return -ENODEV; - } - } else { - if (gpiod_direction_output(reset_gpio, 0)) { - dev_err(&pdev->dev, - "Could not set direction of reset GPIO\n"); - return -ENODEV; - } - } + reset_gpio = devm_gpiod_get(&pdev->dev, NULL, flags); + if (IS_ERR(reset_gpio)) + return PTR_ERR(reset_gpio); pm_power_off = &gpio_poweroff_do_poweroff; return 0; -- 2.11.0