diff options
| author | David S. Miller <davem@davemloft.net> | 2010-05-12 07:05:35 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-12 07:05:35 (GMT) |
| commit | 278554bd6579206921f5d8a523649a7a57f8850d (patch) | |
| tree | 4e6c527daf0910e455b3aa72e2c96b0479e430be /drivers/gpio/pca953x.c | |
| parent | 5a147e8bf982f9dd414c1dd751fe02c1942506b2 (diff) | |
| parent | cea0d767c29669bf89f86e4aee46ef462d2ebae8 (diff) | |
| download | linux-fsl-qoriq-278554bd6579206921f5d8a523649a7a57f8850d.tar.xz | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
Documentation/feature-removal-schedule.txt
drivers/net/wireless/ath/ar9170/usb.c
drivers/scsi/iscsi_tcp.c
net/ipv4/ipmr.c
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 7d521e1..b827c97 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 = { |