gpiolib: Introduce gpiochip_irqchip_add_domain() (6a45b0e2) · Commits · 戴 / test

The function connects an IRQ domain to a gpiochip and reuses gpiochip_to_irq() which is provided by gpiolib. gpiochip_irqchip_* and regmap_irq partially provide the same functionality. This function will help to connect just the minimal functionality of the gpiochip_irqchip which is needed to work together with regmap-irq. Signed-off-by:

Michael Walle <michael@walle.cc> Reviewed-by:

Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20200528145845.31436-2-michael@walle.cc Signed-off-by:

Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpiolib.c

+20 −0

Original line number	Diff line number	Diff line
		@@ -2779,6 +2779,26 @@ int gpiochip_irqchip_add_key(struct gpio_chip *gc,
		}
		EXPORT_SYMBOL_GPL(gpiochip_irqchip_add_key);

		/**
		* gpiochip_irqchip_add_domain() - adds an irqdomain to a gpiochip
		* @gc: the gpiochip to add the irqchip to
		* @domain: the irqdomain to add to the gpiochip
		*
		* This function adds an IRQ domain to the gpiochip.
		*/
		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;

		return 0;
		}
		EXPORT_SYMBOL_GPL(gpiochip_irqchip_add_domain);

		#else /* CONFIG_GPIOLIB_IRQCHIP */

		static inline int gpiochip_add_irqchip(struct gpio_chip *gc,

include/linux/gpio/driver.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -612,6 +612,9 @@ int gpiochip_irqchip_add_key(struct gpio_chip *gc,
		bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gc,
		unsigned int offset);

		int gpiochip_irqchip_add_domain(struct gpio_chip *gc,
		struct irq_domain *domain);

		#ifdef CONFIG_LOCKDEP

		/*

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