diff options
| author | Kevin Hilman <khilman@deeprootsystems.com> | 2009-04-23 22:10:49 +0400 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2009-04-23 22:10:49 +0400 |
| commit | b3bb4f688c225d9455bbd59e98f634f98c1074d0 (patch) | |
| tree | c5ee29d52785791fbba001dbe65e65f524fb3619 /arch/arm/plat-omap/gpio.c | |
| parent | d94a2eddf50c4aa1553acf3025f45d03704a1f97 (diff) | |
| download | linux-b3bb4f688c225d9455bbd59e98f634f98c1074d0.tar.xz | |
ARM: OMAP2/3: GPIO: do not attempt to wake-enable
The GPIO IRQ enable/disable path attempts to also enable IRQ wake
support for the parent GPIO bank IRQ as well. However, since there is
no 'set_wake' hook for the bank IRQs, these calls will always fail.
Also, since the enable will fail on the suspend path, the disable on
the resume path will trigger unbalanced enable/disable warnings.
This was discovered in the suspend/resume path on OMAP3/Beagle using
the gpio-keys driver which disables/re-enables GPIO IRQ wakeups in the
suspend/resume path.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/plat-omap/gpio.c')
| -rw-r--r-- | arch/arm/plat-omap/gpio.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index d3fa41e3d8c5..210a1c045554 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -921,13 +921,10 @@ static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable) case METHOD_MPUIO: case METHOD_GPIO_1610: spin_lock_irqsave(&bank->lock, flags); - if (enable) { + if (enable) bank->suspend_wakeup |= (1 << gpio); - enable_irq_wake(bank->irq); - } else { - disable_irq_wake(bank->irq); + else bank->suspend_wakeup &= ~(1 << gpio); - } spin_unlock_irqrestore(&bank->lock, flags); return 0; #endif @@ -940,13 +937,10 @@ static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable) return -EINVAL; } spin_lock_irqsave(&bank->lock, flags); - if (enable) { + if (enable) bank->suspend_wakeup |= (1 << gpio); - enable_irq_wake(bank->irq); - } else { - disable_irq_wake(bank->irq); + else bank->suspend_wakeup &= ~(1 << gpio); - } spin_unlock_irqrestore(&bank->lock, flags); return 0; #endif |