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gpio: Export gpiochip_irq_{map,unmap}()

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Export these functions so that drivers can explicitly use these when
setting up their IRQ domain.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Thierry Reding 2017-11-07 19:15:55 +01:00 • committed by Linus Walleij
parent e0d8972898
commit 1b95b4eb56
2 changed files with 9 additions and 3 deletions
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8
drivers/gpio/gpiolib.c
View file

@ -1638,8 +1638,8 @@ EXPORT_SYMBOL_GPL(gpiochip_set_nested_irqchip);
* gpiochip by assigning the gpiochip as chip data, and using the irqchip * gpiochip by assigning the gpiochip as chip data, and using the irqchip
* stored inside the gpiochip. * stored inside the gpiochip.
*/ */
static int gpiochip_irq_map(struct irq_domain *d, unsigned int irq, int gpiochip_irq_map(struct irq_domain *d, unsigned int irq,
irq_hw_number_t hwirq) irq_hw_number_t hwirq)
{ {
struct gpio_chip *chip = d->host_data; struct gpio_chip *chip = d->host_data;
int err = 0; int err = 0;
@ -1676,8 +1676,9 @@ static int gpiochip_irq_map(struct irq_domain *d, unsigned int irq,
return 0; return 0;
} }
EXPORT_SYMBOL_GPL(gpiochip_irq_map);
static void gpiochip_irq_unmap(struct irq_domain *d, unsigned int irq) void gpiochip_irq_unmap(struct irq_domain *d, unsigned int irq)
{ {
struct gpio_chip *chip = d->host_data; struct gpio_chip *chip = d->host_data;
@ -1686,6 +1687,7 @@ static void gpiochip_irq_unmap(struct irq_domain *d, unsigned int irq)
irq_set_chip_and_handler(irq, NULL, NULL); irq_set_chip_and_handler(irq, NULL, NULL);
irq_set_chip_data(irq, NULL); irq_set_chip_data(irq, NULL);
} }
EXPORT_SYMBOL_GPL(gpiochip_irq_unmap);
static const struct irq_domain_ops gpiochip_domain_ops = { static const struct irq_domain_ops gpiochip_domain_ops = {
.map = gpiochip_irq_map, .map = gpiochip_irq_map,

4
include/linux/gpio/driver.h
View file

@ -367,6 +367,10 @@ int bgpio_init(struct gpio_chip *gc, struct device *dev,
#ifdef CONFIG_GPIOLIB_IRQCHIP #ifdef CONFIG_GPIOLIB_IRQCHIP
int gpiochip_irq_map(struct irq_domain *d, unsigned int irq,
irq_hw_number_t hwirq);
void gpiochip_irq_unmap(struct irq_domain *d, unsigned int irq);
void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip, void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,
struct irq_chip *irqchip, struct irq_chip *irqchip,
unsigned int parent_irq, unsigned int parent_irq,