From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
commit 5a78d5db9c90c9dc84212f40a5f2687b7cafc8ec upstream.
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.
Fixes: cb8c474e79be ("gpio: sim: new testing module")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpio/gpio-sim.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpio/gpio-sim.c
+++ b/drivers/gpio/gpio-sim.c
@@ -425,6 +425,7 @@ static int gpio_sim_add_bank(struct fwno
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)
