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From 36991ce6ffece72d961a474f994ed5a05efaaca8 Mon Sep 17 00:00:00 2001
From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Date: Wed, 20 Sep 2023 18:07:19 +0200
Subject: [PATCH 4/4] power: reset: gpio-poweroff: make sys handler priority
configurable
Add a priority property equal to gpio-restart to allow increasing the
priority of the gpio-poweroff handler.
Upstream-Status: Submitted [https://lore.kernel.org/all/20231006130428.11259-1-francesco@dolcini.it/]
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
---
drivers/power/reset/gpio-poweroff.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/power/reset/gpio-poweroff.c b/drivers/power/reset/gpio-poweroff.c
index d2548010369b0..46d94f660f87d 100644
--- a/drivers/power/reset/gpio-poweroff.c
+++ b/drivers/power/reset/gpio-poweroff.c
@@ -53,6 +53,7 @@ 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);
@@ -74,14 +75,18 @@ 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");
--
2.39.2
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