mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 08:19:28 +00:00
gpio: pca953x: Add wake-up support
Implement the irq_set_wake() method in the (optional) irq_chip of the GPIO expander, and propagate wake-up settings to the upstream interrupt controller. This allows GPIOs connected to a PCA953X GPIO expander to serve as wake-up sources. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
parent
2f7db3c70f
commit
2a9a2f27d3
1 changed files with 9 additions and 0 deletions
|
@ -576,6 +576,14 @@ static void pca953x_irq_unmask(struct irq_data *d)
|
|||
chip->irq_mask[d->hwirq / BANK_SZ] |= 1 << (d->hwirq % BANK_SZ);
|
||||
}
|
||||
|
||||
static int pca953x_irq_set_wake(struct irq_data *d, unsigned int on)
|
||||
{
|
||||
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
|
||||
struct pca953x_chip *chip = gpiochip_get_data(gc);
|
||||
|
||||
return irq_set_irq_wake(chip->client->irq, on);
|
||||
}
|
||||
|
||||
static void pca953x_irq_bus_lock(struct irq_data *d)
|
||||
{
|
||||
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
|
||||
|
@ -795,6 +803,7 @@ static int pca953x_irq_setup(struct pca953x_chip *chip,
|
|||
irq_chip->name = dev_name(&chip->client->dev);
|
||||
irq_chip->irq_mask = pca953x_irq_mask;
|
||||
irq_chip->irq_unmask = pca953x_irq_unmask;
|
||||
irq_chip->irq_set_wake = pca953x_irq_set_wake;
|
||||
irq_chip->irq_bus_lock = pca953x_irq_bus_lock;
|
||||
irq_chip->irq_bus_sync_unlock = pca953x_irq_bus_sync_unlock;
|
||||
irq_chip->irq_set_type = pca953x_irq_set_type;
|
||||
|
|
Loading…
Reference in a new issue