diff options
author | Ingo Molnar <mingo@elte.hu> | 2010-05-07 11:27:54 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2010-05-07 11:27:54 +0200 |
commit | 48652ced1533c3372f996a0d83b6e73b1f1c9381 (patch) | |
tree | 5e17729cfcdc97bf798a17b57cdb888b4ded65b0 /drivers/gpio/pca953x.c | |
parent | 99bd5e2f245d8cd17d040c82d40becdb3efd9b69 (diff) | |
parent | 66f41d4c5c8a5deed66fdcc84509376c9a0bf9d8 (diff) |
Merge commit 'v2.6.34-rc6' into sched/core
Diffstat (limited to 'drivers/gpio/pca953x.c')
-rw-r--r-- | drivers/gpio/pca953x.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c index 7d521e1d17e..b827c976dc6 100644 --- a/drivers/gpio/pca953x.c +++ b/drivers/gpio/pca953x.c @@ -252,6 +252,18 @@ static void pca953x_irq_bus_lock(unsigned int irq) static void pca953x_irq_bus_sync_unlock(unsigned int irq) { struct pca953x_chip *chip = get_irq_chip_data(irq); + uint16_t new_irqs; + uint16_t level; + + /* Look for any newly setup interrupt */ + new_irqs = chip->irq_trig_fall | chip->irq_trig_raise; + new_irqs &= ~chip->reg_direction; + + while (new_irqs) { + level = __ffs(new_irqs); + pca953x_gpio_direction_input(&chip->gpio_chip, level); + new_irqs &= ~(1 << level); + } mutex_unlock(&chip->irq_lock); } @@ -278,7 +290,7 @@ static int pca953x_irq_set_type(unsigned int irq, unsigned int type) else chip->irq_trig_raise &= ~mask; - return pca953x_gpio_direction_input(&chip->gpio_chip, level); + return 0; } static struct irq_chip pca953x_irq_chip = { |