diff options
| author | Mårten Wikström <marten.wikstrom@passito.se> | 2006-02-22 23:27:23 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-02-22 23:27:23 +0100 |
| commit | 06e4479bd092eca4125e5507e7c22619a491dab3 (patch) | |
| tree | cc73ceba3232070ce353f297dfdb3535145f5822 /arch/arm | |
| parent | [ARM] 3325/2: GPIO function to control multi-drive (open collector) capability (diff) | |
| download | linux-06e4479bd092eca4125e5507e7c22619a491dab3.tar.xz linux-06e4479bd092eca4125e5507e7c22619a491dab3.zip | |
[ARM] 3347/1: Bugfix for ixp4xx_set_irq_type()
Patch from Mårten Wikström
This patch fixes a bug in ixp4xx_set_irq_type() which leads to
GPIO being incorrectly set to both edge triggered for raising
as well as falling edge interrupt types. See the previous
discussion on patch 3312/1.
Signed-off-by: Mårten Wikström <marten.wikstrom@passito.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-ixp4xx/common.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c index 4bdc9d4526cd..fbadf3021b9e 100644 --- a/arch/arm/mach-ixp4xx/common.c +++ b/arch/arm/mach-ixp4xx/common.c @@ -111,24 +111,30 @@ static int ixp4xx_set_irq_type(unsigned int irq, unsigned int type) if (line < 0) return -EINVAL; - if (type & IRQT_BOTHEDGE) { + switch (type){ + case IRQT_BOTHEDGE: int_style = IXP4XX_GPIO_STYLE_TRANSITIONAL; irq_type = IXP4XX_IRQ_EDGE; - } else if (type & IRQT_RISING) { + break; + case IRQT_RISING: int_style = IXP4XX_GPIO_STYLE_RISING_EDGE; irq_type = IXP4XX_IRQ_EDGE; - } else if (type & IRQT_FALLING) { + break; + case IRQT_FALLING: int_style = IXP4XX_GPIO_STYLE_FALLING_EDGE; irq_type = IXP4XX_IRQ_EDGE; - } else if (type & IRQT_HIGH) { + break; + case IRQT_HIGH: int_style = IXP4XX_GPIO_STYLE_ACTIVE_HIGH; irq_type = IXP4XX_IRQ_LEVEL; - } else if (type & IRQT_LOW) { + break; + case IRQT_LOW: int_style = IXP4XX_GPIO_STYLE_ACTIVE_LOW; irq_type = IXP4XX_IRQ_LEVEL; - } else + break; + default: return -EINVAL; - + } ixp4xx_config_irq(irq, irq_type); if (line >= 8) { /* pins 8-15 */ |