[PATCH v2] pinctrl/nomadik: use irq_create_mapping()

[PATCH v2] pinctrl/nomadik: use irq_create_mapping()

[Linus Walleij]

From: Linus Walleij <linus.walleij@linaro.org>

Since in the DT case, the linear domain path will not allocate
descriptors for the IRQs, we need to use irq_create_mapping()
for mapping hwirqs to Linux IRQs, so these descriptors get
created on-the-fly in this case.

ChangeLog v1->v2:

- Just use irq_create_mapping() in the .to_irq function since
  this is called before unmasking or enabling any interrupt
  lines, so irq_find_mapping() should be sufficient for the
  IRQ handler function.

Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-nomadik.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index 01aea1c..db5e0b3 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -1056,7 +1056,7 @@ static int nmk_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
 	struct nmk_gpio_chip *nmk_chip =
 		container_of(chip, struct nmk_gpio_chip, chip);
 
-	return irq_find_mapping(nmk_chip->domain, offset);
+	return irq_create_mapping(nmk_chip->domain, offset);
 }
 
 #ifdef CONFIG_DEBUG_FS
-- 
1.7.11.3

[PATCH v2] pinctrl/nomadik: use irq_create_mapping()

[Stephen Warren]

On 10/23/2012 02:35 AM, Linus Walleij wrote:
> From: Linus Walleij <linus.walleij@linaro.org>
> 
> Since in the DT case, the linear domain path will not allocate
> descriptors for the IRQs, we need to use irq_create_mapping()
> for mapping hwirqs to Linux IRQs, so these descriptors get
> created on-the-fly in this case.
> 
> ChangeLog v1->v2:
> 
> - Just use irq_create_mapping() in the .to_irq function since
>   this is called before unmasking or enabling any interrupt
>   lines, so irq_find_mapping() should be sufficient for the
>   IRQ handler function.

Reviewed-by: Stephen Warren <swarren@nvidia.com>