diff options
| author | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-06-24 11:39:33 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-07-04 09:25:59 +0200 |
| commit | 9d9c1796a6ae70290c2e013fe4d79e99039a1015 (patch) | |
| tree | 896d3a5f47ccd0a8820775708aa6a177ef40a955 /drivers/gpio | |
| parent | genirq/irq_sim: add an extended irq_sim initializer (diff) | |
| download | linux-9d9c1796a6ae70290c2e013fe4d79e99039a1015.tar.xz linux-9d9c1796a6ae70290c2e013fe4d79e99039a1015.zip | |
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 <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>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-sim.c | 25 |
1 files changed, 24 insertions, 1 deletions
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); |