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gpiolib: Split out gpiochip_irqchip_add_allocated_domain() helper

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The gpiochip_irqchip_add_allocated_domain() can be used
in another place in the code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Andy Shevchenko 2023-06-21 20:49:42 +03:00 committed by Bartosz Golaszewski
parent 39f3ad73d4
commit 081bfdb303
1 changed files with 23 additions and 16 deletions
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39
drivers/gpio/gpiolib.c
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@ -1638,6 +1638,28 @@ static void gpiochip_set_irq_hooks(struct gpio_chip *gc)
}
}
static int gpiochip_irqchip_add_allocated_domain(struct gpio_chip *gc,
struct irq_domain *domain,
bool allocated_externally)
{
if (!domain)
return -EINVAL;
gc->to_irq = gpiochip_to_irq;
gc->irq.domain = domain;
gc->irq.domain_is_allocated_externally = allocated_externally;
/*
* Using barrier() here to prevent compiler from reordering
* gc->irq.initialized before adding irqdomain.
*/
barrier();
gc->irq.initialized = true;
return 0;
}
/**
* gpiochip_add_irqchip() - adds an IRQ chip to a GPIO chip
* @gc: the GPIO chip to add the IRQ chip to
@ -1791,22 +1813,7 @@ static void gpiochip_irqchip_remove(struct gpio_chip *gc)
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;
gc->irq.domain_is_allocated_externally = true;
/*
* Using barrier() here to prevent compiler from reordering
* gc->irq.initialized before adding irqdomain.
*/
barrier();
gc->irq.initialized = true;
return 0;
return gpiochip_irqchip_add_allocated_domain(gc, domain, true);
}
EXPORT_SYMBOL_GPL(gpiochip_irqchip_add_domain);