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gpiolib: Introduce gpiochip_irqchip_add_domain()

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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>
This commit is contained in:
Michael Walle 2020-05-28 16:58:43 +02:00 • committed by Linus Walleij
parent a8173820f4
commit 6a45b0e258
2 changed files with 23 additions and 0 deletions
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3
include/linux/gpio/driver.h
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@ -612,6 +612,9 @@ int gpiochip_irqchip_add_key(struct gpio_chip *gc,
bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gc,
unsigned int offset);
int gpiochip_irqchip_add_domain(struct gpio_chip *gc,
struct irq_domain *domain);
#ifdef CONFIG_LOCKDEP
/*