diff mbox series

gpio: sim: mark the GPIO chip as a one that can sleep

Message ID 20230801190951.51818-1-brgl@bgdev.pl
State New
Headers show
Series gpio: sim: mark the GPIO chip as a one that can sleep | expand

Commit Message

Bartosz Golaszewski Aug. 1, 2023, 7:09 p.m. UTC 
From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Simulated chips use a mutex for synchronization in driver callbacks so
they must not be called from interrupt context. Set the can_sleep field
of the GPIO chip to true to force users to only use threaded irqs.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 drivers/gpio/gpio-sim.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c
index cfbdade841e8..5f8723ad0048 100644
--- a/drivers/gpio/gpio-sim.c
+++ b/drivers/gpio/gpio-sim.c
@@ -429,6 +429,7 @@  static int gpio_sim_add_bank(struct fwnode_handle *swnode, struct device *dev)
 	gc->set_config = gpio_sim_set_config;
 	gc->to_irq = gpio_sim_to_irq;
 	gc->free = gpio_sim_free;
+	gc->can_sleep = true;
 
 	ret = devm_gpiochip_add_data(dev, gc, chip);
 	if (ret)