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

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commit 5a78d5db9c 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: cb8c474e79 ("gpio: sim: new testing module")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bartosz Golaszewski
2023-08-01 21:09:51 +02:00
committed by Greg Kroah-Hartman
parent 227bd2c1ea
commit b8cd871d0a
1 changed files with 1 additions and 0 deletions
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1
drivers/gpio/gpio-sim.c
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@@ -425,6 +425,7 @@ static int gpio_sim_add_bank(struct fwnode_handle *swnode, struct device *dev)
gc->set_config = gpio_sim_set_config; gc->set_config = gpio_sim_set_config;
gc->to_irq = gpio_sim_to_irq; gc->to_irq = gpio_sim_to_irq;
gc->free = gpio_sim_free; gc->free = gpio_sim_free;
gc->can_sleep = true;
ret = devm_gpiochip_add_data(dev, gc, chip); ret = devm_gpiochip_add_data(dev, gc, chip);
if (ret) if (ret)