diff options
| author | Imre Deak <imre.deak@nokia.com> | 2006-06-27 01:16:07 +0200 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2006-06-27 01:16:07 +0200 |
| commit | 99c477074de4a91a388aff863646dc3e2eb783e2 (patch) | |
| tree | d3cd4f913d4c7a2113167a6007fd33397335dac6 /arch | |
| parent | ARM: OMAP: DMA transfer parameter configuration fix (diff) | |
| download | linux-99c477074de4a91a388aff863646dc3e2eb783e2.tar.xz linux-99c477074de4a91a388aff863646dc3e2eb783e2.zip | |
ARM: OMAP: Fix GPIO IRQ mask handling
The GPIO IRQ mask was retrieved incorrectly in cases where we have a mask
register instead of an enable register. Also we should only return the
valid bits depending on the bank size.
This fixes a bug on 1510/1610 based OMAPs where GPIO IRQs are not
delivered.
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/plat-omap/gpio.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index cd1e508f90c1..e75a2ca70ba1 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -540,29 +540,44 @@ static inline void _clear_gpio_irqstatus(struct gpio_bank *bank, int gpio) static u32 _get_gpio_irqbank_mask(struct gpio_bank *bank) { void __iomem *reg = bank->base; + int inv = 0; + u32 l; + u32 mask; switch (bank->method) { case METHOD_MPUIO: reg += OMAP_MPUIO_GPIO_MASKIT; + mask = 0xffff; + inv = 1; break; case METHOD_GPIO_1510: reg += OMAP1510_GPIO_INT_MASK; + mask = 0xffff; + inv = 1; break; case METHOD_GPIO_1610: reg += OMAP1610_GPIO_IRQENABLE1; + mask = 0xffff; break; case METHOD_GPIO_730: reg += OMAP730_GPIO_INT_MASK; + mask = 0xffffffff; + inv = 1; break; case METHOD_GPIO_24XX: reg += OMAP24XX_GPIO_IRQENABLE1; + mask = 0xffffffff; break; default: BUG(); return 0; } - return __raw_readl(reg); + l = __raw_readl(reg); + if (inv) + l = ~l; + l &= mask; + return l; } static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enable) |