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gpio: sim: lock GPIOs as interrupts when they are requested

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Use the extended irq_sim interface to supply the simulated interrupt
domain with callbacks allowing the GPIO sim to lock/unlock GPIOs
requested as interrupts.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240624093934.17089-3-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Bartosz Golaszewski 2024-06-24 11:39:33 +02:00
parent 011f583781
commit 9d9c1796a6
1 changed files with 24 additions and 1 deletions
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25
drivers/gpio/gpio-sim.c
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@ -227,6 +227,27 @@ static void gpio_sim_free(struct gpio_chip *gc, unsigned int offset)
}
}
static int gpio_sim_irq_requested(struct irq_domain *domain,
irq_hw_number_t hwirq, void *data)
{
struct gpio_sim_chip *chip = data;
return gpiochip_lock_as_irq(&chip->gc, hwirq);
}
static void gpio_sim_irq_released(struct irq_domain *domain,
irq_hw_number_t hwirq, void *data)
{
struct gpio_sim_chip *chip = data;
gpiochip_unlock_as_irq(&chip->gc, hwirq);
}
static const struct irq_sim_ops gpio_sim_irq_sim_ops = {
.irq_sim_irq_requested = gpio_sim_irq_requested,
.irq_sim_irq_released = gpio_sim_irq_released,
};
static void gpio_sim_dbg_show(struct seq_file *seq, struct gpio_chip *gc)
{
struct gpio_sim_chip *chip = gpiochip_get_data(gc);
@ -443,7 +464,9 @@ static int gpio_sim_add_bank(struct fwnode_handle *swnode, struct device *dev)
if (!chip->pull_map)
return -ENOMEM;
chip->irq_sim = devm_irq_domain_create_sim(dev, swnode, num_lines);
chip->irq_sim = devm_irq_domain_create_sim_full(dev, swnode, num_lines,
&gpio_sim_irq_sim_ops,
chip);
if (IS_ERR(chip->irq_sim))
return PTR_ERR(chip->irq_sim);