From 9d9c1796a6ae70290c2e013fe4d79e99039a1015 Mon Sep 17 00:00:00 2001 From: Bartosz Golaszewski Date: Mon, 24 Jun 2024 11:39:33 +0200 Subject: gpio: sim: lock GPIOs as interrupts when they are requested 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 Acked-by: Linus Walleij Link: https://lore.kernel.org/r/20240624093934.17089-3-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpio-sim.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c index 4157735ea791..dcca1d7f173e 100644 --- a/drivers/gpio/gpio-sim.c +++ b/drivers/gpio/gpio-sim.c @@ -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); -- cgit v1.2.3-73-gaa49b