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authorSteve French <sfrench@us.ibm.com>2010-05-13 18:19:32 -0400
committerSteve French <sfrench@us.ibm.com>2010-05-13 18:19:32 -0400
commitbaa456331738b4e76a92318b62b354377a30ad80 (patch)
tree75c828a7c8a9f1b5f7f41b2e53271eafb7e561ef /drivers/gpio/pca953x.c
parentaa3e5572c538d753dce11bf93532a75f95d22b40 (diff)
parent4462dc02842698f173f518c1f5ce79c0fb89395a (diff)
Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: fs/cifs/inode.c
Diffstat (limited to 'drivers/gpio/pca953x.c')
-rw-r--r--drivers/gpio/pca953x.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
index 7d521e1d17e1..b827c976dc62 100644
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -252,6 +252,18 @@ static void pca953x_irq_bus_lock(unsigned int irq)
252static void pca953x_irq_bus_sync_unlock(unsigned int irq) 252static void pca953x_irq_bus_sync_unlock(unsigned int irq)
253{ 253{
254 struct pca953x_chip *chip = get_irq_chip_data(irq); 254 struct pca953x_chip *chip = get_irq_chip_data(irq);
255 uint16_t new_irqs;
256 uint16_t level;
257
258 /* Look for any newly setup interrupt */
259 new_irqs = chip->irq_trig_fall | chip->irq_trig_raise;
260 new_irqs &= ~chip->reg_direction;
261
262 while (new_irqs) {
263 level = __ffs(new_irqs);
264 pca953x_gpio_direction_input(&chip->gpio_chip, level);
265 new_irqs &= ~(1 << level);
266 }
255 267
256 mutex_unlock(&chip->irq_lock); 268 mutex_unlock(&chip->irq_lock);
257} 269}
@@ -278,7 +290,7 @@ static int pca953x_irq_set_type(unsigned int irq, unsigned int type)
278 else 290 else
279 chip->irq_trig_raise &= ~mask; 291 chip->irq_trig_raise &= ~mask;
280 292
281 return pca953x_gpio_direction_input(&chip->gpio_chip, level); 293 return 0;
282} 294}
283 295
284static struct irq_chip pca953x_irq_chip = { 296static struct irq_chip pca953x_irq_chip = {