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gpio: add irq domain activate/deactivate functions

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This adds the two new functions gpiochip_irq_domain_activate and
gpiochip_irq_domain_deactivate that can be used as the activate and
deactivate functions in the struct irq_domain_ops. This is for
situations where only gpiochip_{lock,unlock}_as_irq needs to be called.
SPMI and SSBI GPIO are two users that will initially use these
functions.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Suggested-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Brian Masney 2019-01-19 15:42:42 -05:00 • committed by Linus Walleij
parent 12a9eeaebb
commit ef74f70e5a
2 changed files with 42 additions and 0 deletions
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5
include/linux/gpio/driver.h
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@ -472,6 +472,11 @@ 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);
int gpiochip_irq_domain_activate(struct irq_domain *domain,
struct irq_data *data, bool reserve);
void gpiochip_irq_domain_deactivate(struct irq_domain *domain,
struct irq_data *data);
void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,
struct irq_chip *irqchip,
unsigned int parent_irq,