From 64ff2c8e468ceff3cd678a4fa2edfc77dadc6bfe Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Tue, 9 Jan 2018 17:58:46 -0800 Subject: [PATCH] gpiolib: Export gpiochip_irqchip_irq_valid() to drivers Some pinctrl drivers can use the gpiochip irq valid information to figure out if certain gpios are exposed to the kernel for usage or not. Expose this API so we can use it in the pinmux_ops::request ops. Signed-off-by: Stephen Boyd Acked-by: Bjorn Andersson Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib.c | 5 +++-- include/linux/gpio/driver.h | 3 +++ 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 0e78a5023cb27..94a5575d1ebe4 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1501,14 +1501,15 @@ static void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gpiochip) gpiochip->irq.valid_mask = NULL; } -static bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gpiochip, - unsigned int offset) +bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gpiochip, + unsigned int offset) { /* No mask means all valid */ if (likely(!gpiochip->irq.valid_mask)) return true; return test_bit(offset, gpiochip->irq.valid_mask); } +EXPORT_SYMBOL_GPL(gpiochip_irqchip_irq_valid); /** * gpiochip_set_cascaded_irqchip() - connects a cascaded irqchip to a gpiochip diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 55e672592fa93..b6a05dd0d10a9 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -431,6 +431,9 @@ int gpiochip_irqchip_add_key(struct gpio_chip *gpiochip, bool threaded, struct lock_class_key *lock_key); +bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gpiochip, + unsigned int offset); + #ifdef CONFIG_LOCKDEP /* -- 2.39.5