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power: reset: gpio-poweroff: make sys handler priority configurable

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Add a priority property equal to gpio-restart to allow increasing the
priority of the gpio-poweroff handler.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20231006130428.11259-5-francesco@dolcini.it
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Stefan Eichenberger 2023-10-06 10:04:28 -03:00 committed by Sebastian Reichel
parent 4ee17bd307
commit d03d2a8cde
1 changed files with 7 additions and 2 deletions
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9
drivers/power/reset/gpio-poweroff.c
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@ -54,6 +54,7 @@ static int gpio_poweroff_probe(struct platform_device *pdev)
struct gpio_poweroff *gpio_poweroff;
bool input = false;
enum gpiod_flags flags;
int priority = SYS_OFF_PRIO_DEFAULT;
int ret;
gpio_poweroff = devm_kzalloc(&pdev->dev, sizeof(*gpio_poweroff), GFP_KERNEL);
@ -75,14 +76,18 @@ static int gpio_poweroff_probe(struct platform_device *pdev)
device_property_read_u32(&pdev->dev, "inactive-delay-ms",
&gpio_poweroff->inactive_delay_ms);
device_property_read_u32(&pdev->dev, "timeout-ms", &gpio_poweroff->timeout_ms);
device_property_read_u32(&pdev->dev, "priority", &priority);
if (priority > 255) {
dev_err(&pdev->dev, "Invalid priority property: %u\n", priority);
return -EINVAL;
}
gpio_poweroff->reset_gpio = devm_gpiod_get(&pdev->dev, NULL, flags);
if (IS_ERR(gpio_poweroff->reset_gpio))
return PTR_ERR(gpio_poweroff->reset_gpio);
ret = devm_register_sys_off_handler(&pdev->dev, SYS_OFF_MODE_POWER_OFF,
SYS_OFF_PRIO_DEFAULT, gpio_poweroff_do_poweroff,
gpio_poweroff);
priority, gpio_poweroff_do_poweroff, gpio_poweroff);
if (ret)
return dev_err_probe(&pdev->dev, ret, "Cannot register poweroff handler\n");