From 62712a1a87724194500e1786a65578964838f4d8 Mon Sep 17 00:00:00 2001 From: Nick Bulleid Date: Thu, 10 May 2018 21:57:02 +0100 Subject: [PATCH 298/454] Add ability to export gpio used by gpio-poweroff Signed-off-by: Nick Bulleid --- drivers/power/reset/gpio-poweroff.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/drivers/power/reset/gpio-poweroff.c +++ b/drivers/power/reset/gpio-poweroff.c @@ -50,6 +50,7 @@ static int gpio_poweroff_probe(struct pl bool input = false; enum gpiod_flags flags; bool force = false; + bool export = false; /* If a pm_power_off function has already been added, leave it alone */ force = of_property_read_bool(pdev->dev.of_node, "force"); @@ -70,6 +71,12 @@ static int gpio_poweroff_probe(struct pl if (IS_ERR(reset_gpio)) return PTR_ERR(reset_gpio); + export = of_property_read_bool(pdev->dev.of_node, "export"); + if (export) { + gpiod_export(reset_gpio, false); + gpiod_export_link(&pdev->dev, "poweroff-gpio", reset_gpio); + } + pm_power_off = &gpio_poweroff_do_poweroff; return 0; } @@ -79,6 +86,8 @@ static int gpio_poweroff_remove(struct p if (pm_power_off == &gpio_poweroff_do_poweroff) pm_power_off = NULL; + gpiod_unexport(reset_gpio); + return 0; }