diff options
| author | Thierry Reding <treding@nvidia.com> | 2017-11-07 19:15:58 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-11-08 14:17:12 +0100 |
| commit | 8302cf585288f75fd253f6b9a094d51ae371a3f3 (patch) | |
| tree | cacc2410c43290426bfe27da4d721e52282994ac /drivers/gpio/gpiolib.c | |
| parent | 60ed54cae8dc0f2d41cafbd477bbed6deb716615 (diff) | |
gpio: Introduce struct gpio_irq_chip.first
Some GPIO chips cannot support sparse IRQ numbering and therefore need
to manually allocate their interrupt descriptors statically. For these
cases, a driver can pass the first allocated IRQ via the struct
gpio_irq_chip's "first" field and thereby cause the IRQ domain to map
all IRQs during initialization.
Suggested-by: Grygorii Strashko <grygorii.strashko@ti.com>
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>
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 389257f97e45..6d5c366a1378 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1778,7 +1778,8 @@ static int gpiochip_add_irqchip(struct gpio_chip *gpiochip) ops = &gpiochip_domain_ops; gpiochip->irq.domain = irq_domain_add_simple(np, gpiochip->ngpio, - 0, ops, gpiochip); + gpiochip->irq.first, + ops, gpiochip); if (!gpiochip->irq.domain) return -EINVAL; |