diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2013-10-14 10:25:59 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-10-16 09:59:55 +0200 |
| commit | 873ee9ed2c020b59e22a5082f73fc2960ec959bf (patch) | |
| tree | 1553361b004e79db524f8f804a6f93a3d877e92e /drivers | |
| parent | 494336f3a6eabeede8ce07b73f5023ff4f7c745d (diff) | |
pinctrl: coh901: mark GPIO lines used for IRQ
When an IRQ is started on a GPIO line, mark this GPIO as IRQ in
the gpiolib so we can keep track of the usage centrally.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pinctrl/pinctrl-coh901.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c index f22a2193d949..162ac0d73739 100644 --- a/drivers/pinctrl/pinctrl-coh901.c +++ b/drivers/pinctrl/pinctrl-coh901.c @@ -529,6 +529,10 @@ static void u300_gpio_irq_enable(struct irq_data *d) dev_dbg(gpio->dev, "enable IRQ for hwirq %lu on port %s, offset %d\n", d->hwirq, port->name, offset); + if (gpio_lock_as_irq(&gpio->chip, d->hwirq)) + dev_err(gpio->dev, + "unable to lock HW IRQ %lu for IRQ\n", + d->hwirq); local_irq_save(flags); val = readl(U300_PIN_REG(offset, ien)); writel(val | U300_PIN_BIT(offset), U300_PIN_REG(offset, ien)); @@ -547,6 +551,7 @@ static void u300_gpio_irq_disable(struct irq_data *d) val = readl(U300_PIN_REG(offset, ien)); writel(val & ~U300_PIN_BIT(offset), U300_PIN_REG(offset, ien)); local_irq_restore(flags); + gpio_unlock_as_irq(&gpio->chip, d->hwirq); } static struct irq_chip u300_gpio_irqchip = { |