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Commit 64ff2c8e authored by Stephen Boyd's avatar Stephen Boyd Committed by Linus Walleij
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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: default avatarStephen Boyd <sboyd@codeaurora.org>
Acked-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 9961dbcd

drivers/gpio/gpiolib.c

+3 −2
Original line number Diff line number Diff line
@@ -1501,7 +1501,7 @@ 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,

bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gpiochip,

				unsigned int offset)

{

	/* No mask means all valid */
@@ -1509,6 +1509,7 @@ static bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gpiochip, 
		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

include/linux/gpio/driver.h

+3 −0
Original line number Diff line number Diff line
@@ -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



/*