diff options
| author | Michael Walle <michael@walle.cc> | 2020-05-28 16:58:43 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2020-06-03 10:48:37 +0200 |
| commit | 6a45b0e2589fafd7fc501a5fbd0ab56689a08124 (patch) | |
| tree | 354473198d7559b15863615df6963a840d2b9998 /drivers/gpio | |
| parent | gpio: gpiolib: Allow GPIO IRQs to lazy disable (diff) | |
| download | linux-6a45b0e2589fafd7fc501a5fbd0ab56689a08124.tar.xz linux-6a45b0e2589fafd7fc501a5fbd0ab56689a08124.zip | |
gpiolib: Introduce gpiochip_irqchip_add_domain()
The function connects an IRQ domain to a gpiochip and reuses
gpiochip_to_irq() which is provided by gpiolib.
gpiochip_irqchip_* and regmap_irq partially provide the same
functionality. This function will help to connect just the
minimal functionality of the gpiochip_irqchip which is needed to
work together with regmap-irq.
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200528145845.31436-2-michael@walle.cc
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 167860684be6..0a54a759dd40 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2779,6 +2779,26 @@ int gpiochip_irqchip_add_key(struct gpio_chip *gc, } EXPORT_SYMBOL_GPL(gpiochip_irqchip_add_key); +/** + * gpiochip_irqchip_add_domain() - adds an irqdomain to a gpiochip + * @gc: the gpiochip to add the irqchip to + * @domain: the irqdomain to add to the gpiochip + * + * This function adds an IRQ domain to the gpiochip. + */ +int gpiochip_irqchip_add_domain(struct gpio_chip *gc, + struct irq_domain *domain) +{ + if (!domain) + return -EINVAL; + + gc->to_irq = gpiochip_to_irq; + gc->irq.domain = domain; + + return 0; +} +EXPORT_SYMBOL_GPL(gpiochip_irqchip_add_domain); + #else /* CONFIG_GPIOLIB_IRQCHIP */ static inline int gpiochip_add_irqchip(struct gpio_chip *gc, |