gpio: Implement tighter IRQ chip integration
Currently GPIO drivers are required to add the GPIO chip and its
corresponding IRQ chip separately, which can result in a lot of
boilerplate. Use the newly introduced struct gpio_irq_chip, embedded in
struct gpio_chip, that drivers can fill in if they want the GPIO core
to automatically register the IRQ chip associated with a GPIO chip.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index c363ee1..51fc7b0 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -101,6 +101,13 @@ struct gpio_irq_chip {
unsigned int *parents;
/**
+ * @map:
+ *
+ * A list of interrupt parents for each line of a GPIO chip.
+ */
+ unsigned int *map;
+
+ /**
* @nested:
*
* True if set the interrupt handling is nested.