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ARM: pxa: use chained interrupt for GPIO0 and GPIO1

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GPIO0 and GPIO1 are linked to unique interrupt line in PXA series,
others are linked to another interrupt line. All GPIO are linked to one
interrupt line in MMP series.

Since gpio driver is shared between PXA series and MMP series, define
GPIO0 and GPIO1 as chained interrupt chip. So we can move out gpio code
from irq.c to gpio-pxa.c.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Haojian Zhuang
2011-10-10 14:38:46 +08:00
parent 6384fdadb4
commit 87c49e2057
4 changed files with 16 additions and 75 deletions
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14
drivers/gpio/gpio-pxa.c
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@@ -283,6 +283,20 @@ void __init pxa_init_gpio(int mux_irq, int start, int end, set_wake_t fn)
__raw_writel(~0,c->regbase + GEDR_OFFSET);
}
#ifdef CONFIG_ARCH_PXA
irq = gpio_to_irq(0);
irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
handle_edge_irq);
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
irq_set_chained_handler(IRQ_GPIO0, pxa_gpio_demux_handler);
irq = gpio_to_irq(1);
irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
handle_edge_irq);
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
irq_set_chained_handler(IRQ_GPIO1, pxa_gpio_demux_handler);
#endif
for (irq = gpio_to_irq(start); irq <= gpio_to_irq(end); irq++) {
irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
handle_edge_irq);