[PATCH v2 4/5] gpio: sysfs: emit chardev line-state events on active-low changes

From: Bartosz Golaszewski
Date: Fri Oct 25 2024 - 08:19:40 EST


From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>

The sysfs active_low attribute doesn't go through the usual paths so it
doesn't emit the line-state event. Add the missing call to
gpiod_line_state_notify() to gpio_sysfs_set_active_low().

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
---
drivers/gpio/gpiolib-sysfs.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c
index de3ed75b097e..cc5c51ca9478 100644
--- a/drivers/gpio/gpiolib-sysfs.c
+++ b/drivers/gpio/gpiolib-sysfs.c
@@ -306,6 +306,8 @@ static int gpio_sysfs_set_active_low(struct device *dev, int value)
status = gpio_sysfs_request_irq(dev, flags);
}

+ gpiod_line_state_notify(desc, GPIO_V2_LINE_CHANGED_CONFIG);
+
return status;
}


--
2.45.2