Commit 6f79309a authored by Thierry Reding's avatar Thierry Reding Committed by Linus Walleij
Browse files

gpio: Use unsigned int for interrupt numbers 



Interrupt numbers are never negative, zero serves as the special invalid
value.

Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent d69843e4

drivers/gpio/gpiolib.c

+3 −3
Original line number Diff line number Diff line
@@ -1522,7 +1522,7 @@ static bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gpiochip, 
 */

static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip,

					  struct irq_chip *irqchip,

					  int parent_irq,

					  unsigned int parent_irq,

					  irq_flow_handler_t parent_handler)

{

	unsigned int offset;
@@ -1571,7 +1571,7 @@ static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip, 
 */

void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,

				  struct irq_chip *irqchip,

				  int parent_irq,

				  unsigned int parent_irq,

				  irq_flow_handler_t parent_handler)

{

	gpiochip_set_cascaded_irqchip(gpiochip, irqchip, parent_irq,
@@ -1588,7 +1588,7 @@ EXPORT_SYMBOL_GPL(gpiochip_set_chained_irqchip); 
 */

void gpiochip_set_nested_irqchip(struct gpio_chip *gpiochip,

				 struct irq_chip *irqchip,

				 int parent_irq)

				 unsigned int parent_irq)

{

	if (!gpiochip->irq_nested) {

		chip_err(gpiochip, "tried to nest a chained gpiochip\n");

include/linux/gpio/driver.h

+3 −3
Original line number Diff line number Diff line
@@ -168,7 +168,7 @@ struct gpio_chip { 
	unsigned int		irq_base;

	irq_flow_handler_t	irq_handler;

	unsigned int		irq_default_type;

	int			irq_chained_parent;

	unsigned int		irq_chained_parent;

	bool			irq_nested;

	bool			irq_need_valid_mask;

	unsigned long		*irq_valid_mask;
@@ -244,12 +244,12 @@ int bgpio_init(struct gpio_chip *gc, struct device *dev, 


void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,

		struct irq_chip *irqchip,

		int parent_irq,

		unsigned int parent_irq,

		irq_flow_handler_t parent_handler);



void gpiochip_set_nested_irqchip(struct gpio_chip *gpiochip,

		struct irq_chip *irqchip,

		int parent_irq);

		unsigned int parent_irq);



int gpiochip_irqchip_add_key(struct gpio_chip *gpiochip,

			     struct irq_chip *irqchip,