[PATCH 3/7] gpio/mvebu: convert to use irq_domain_add_simple()

From: Linus Walleij
Date: Tue Oct 16 2012 - 15:34:26 EST

The MVEBU driver probably just wants a few IRQs. Using the simple
domain has the upside of allocating IRQ descriptors if need be,
especially in a SPARSE_IRQ environment.

Also replace one instance of irq_create_mapping() with
irq_find_mapping(), the domain is registered in probe() so
the irq is sure there to be found, no reason to ask for
on-the-fly remappings here.

Cc: Rob Herring <rob.herring@xxxxxxxxxxx>
Cc: Grant Likely <grant.likely@xxxxxxxxxxxx>
Cc: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
Cc: Andrew Lunn <andrew@xxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
drivers/gpio/gpio-mvebu.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index 902af43..8fdeed2 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -257,7 +257,7 @@ static int mvebu_gpio_to_irq(struct gpio_chip *chip, unsigned pin)
struct mvebu_gpio_chip *mvchip =
container_of(chip, struct mvebu_gpio_chip, chip);
- return irq_create_mapping(mvchip->domain, pin);
+ return irq_find_mapping(mvchip->domain, pin);

@@ -645,8 +645,8 @@ static int __devinit mvebu_gpio_probe(struct platform_device *pdev)

/* Setup irq domain on top of the generic chip. */
- mvchip->domain = irq_domain_add_legacy(np, mvchip->chip.ngpio,
- mvchip->irqbase, 0,
+ mvchip->domain = irq_domain_add_simple(np, mvchip->chip.ngpio,
+ mvchip->irqbase,
if (!mvchip->domain) {

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