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mfd: Fix asic3_gpio_to_irq

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Assumption that irq numbers of asic3 gpios start at
IRQ_BOARD_START is certainly wrong - driver may as well
use any other base for its irqs (consider for example
the imaginary case of two ASIC3 chips onboard)

Furthermore, some platforms even don't have IRQ_BOARD_START
defined, so driver will fail to build on them:
-------------------------------------------------------
drivers/mfd/asic3.c: In function 'asic3_gpio_to_irq':
drivers/mfd/asic3.c:530: error: 'IRQ_BOARD_START' undeclared (first use in this function)
drivers/mfd/asic3.c:530: error: (Each undeclared identifier is reported only once
drivers/mfd/asic3.c:530: error: for each function it appears in.)
-------------------------------------------------------

Fix it by using irq_base from driver data.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Dmitry Artamonow 2012-04-12 15:33:34 +04:00 committed by Samuel Ortiz
parent 1fcb57d0f6
commit 02269ab10f
1 changed files with 3 additions and 1 deletions
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4
drivers/mfd/asic3.c
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@ -527,7 +527,9 @@ static void asic3_gpio_set(struct gpio_chip *chip,
static int asic3_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
{
return (offset < ASIC3_NUM_GPIOS) ? IRQ_BOARD_START + offset : -ENXIO;
struct asic3 *asic = container_of(chip, struct asic3, gpio);
return (offset < ASIC3_NUM_GPIOS) ? asic->irq_base + offset : -ENXIO;
}
static __init int asic3_gpio_probe(struct platform_device *pdev,