diff options
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-pca953x.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index a610864b7e13..ce5736e83620 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -474,12 +474,16 @@ static int pca953x_irq_setup(struct pca953x_chip *chip, * this purpose. */ chip->irq_stat &= chip->reg_direction; - chip->irq_base = pdata->irq_base; mutex_init(&chip->irq_lock); + chip->irq_base = irq_alloc_descs(-1, pdata->irq_base, chip->gpio_chip.ngpio, -1); + if (chip->irq_base < 0) + goto out_failed; + for (lvl = 0; lvl < chip->gpio_chip.ngpio; lvl++) { int irq = lvl + chip->irq_base; + irq_clear_status_flags(irq, IRQ_NOREQUEST); irq_set_chip_data(irq, chip); irq_set_chip_and_handler(irq, &pca953x_irq_chip, handle_simple_irq); |