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ARM: mmp: clear gpio edge detect 

Append code to clear gpio edge detect in gpio-pxa driver.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
This commit is contained in:
Haojian Zhuang 2011-10-17 21:07:15 +08:00 committed by Haojian Zhuang
parent 157d2644cb
commit be24168f14
1 changed files with 4 additions and 0 deletions
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4
drivers/gpio/gpio-pxa.c
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@ -46,6 +46,7 @@
#define GFER_OFFSET 0x3C
#define GEDR_OFFSET 0x48
#define GAFR_OFFSET 0x54
#define ED_MASK_OFFSET 0x9C /* GPIO edge detection for AP side */
#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
@ -496,6 +497,9 @@ static int __devinit pxa_gpio_probe(struct platform_device *pdev)
writel_relaxed(0, c->regbase + GFER_OFFSET);
writel_relaxed(0, c->regbase + GRER_OFFSET);
writel_relaxed(~0,c->regbase + GEDR_OFFSET);
/* unmask GPIO edge detect for AP side */
if (gpio_is_mmp_type(gpio_type))
writel_relaxed(~0, c->regbase + ED_MASK_OFFSET);
}
#ifdef CONFIG_ARCH_PXA