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.

Cc: Enric Balletbo i Serra <[email protected]>
Cc: Grant Likely <[email protected]>
Cc: Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
Cc: Santosh Shilimkar <[email protected]>
Cc: Stephen Warren <[email protected]>
Cc: Javier Martinez Canillas <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
---
 drivers/pinctrl/pinctrl-nomadik.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-nomadik.c 
b/drivers/pinctrl/pinctrl-nomadik.c
index d7c3ae3..7111c3b 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -634,6 +634,10 @@ static unsigned int nmk_gpio_irq_startup(struct irq_data 
*d)
 {
        struct nmk_gpio_chip *nmk_chip = irq_data_get_irq_chip_data(d);
 
+       if (gpio_lock_as_irq(&nmk_chip->chip, d->hwirq))
+               dev_err(nmk_chip->chip.dev,
+                       "unable to lock HW IRQ %lu for IRQ\n",
+                       d->hwirq);
        clk_enable(nmk_chip->clk);
        nmk_gpio_irq_unmask(d);
        return 0;
@@ -645,6 +649,7 @@ static void nmk_gpio_irq_shutdown(struct irq_data *d)
 
        nmk_gpio_irq_mask(d);
        clk_disable(nmk_chip->clk);
+       gpio_unlock_as_irq(&nmk_chip->chip, d->hwirq);
 }
 
 static struct irq_chip nmk_gpio_irq_chip = {
-- 
1.8.3.1

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