Commit db6b3ad1 authored by Linus Walleij's avatar Linus Walleij

gpio: bcm-kona: lock IRQs when starting them

This uses the new API for tagging GPIO lines as in use by
IRQs. This enforces a few semantic checks on how the underlying
GPIO line is used.

Cc: Christian Daudt <>
Cc: Grygorii Strashko <>
Reviewed-by: default avatarMarkus Mayer <>
Tested-by: default avatarMarkus Mayer <>
Reviewed-by: default avatarJavier Martinez Canillas <>
Signed-off-by: Linus Walleij's avatarLinus Walleij <>
parent f41cd3c2
......@@ -449,12 +449,34 @@ static void bcm_kona_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
chained_irq_exit(chip, desc);
static unsigned int bcm_kona_gpio_irq_startup(struct irq_data *d)
struct bcm_kona_gpio *kona_gpio = irq_data_get_irq_chip_data(d);
if (gpio_lock_as_irq(&kona_gpio->gpio_chip, d->hwirq))
"unable to lock HW IRQ %lu for IRQ\n",
return 0;
static void bcm_kona_gpio_irq_shutdown(struct irq_data *d)
struct bcm_kona_gpio *kona_gpio = irq_data_get_irq_chip_data(d);
gpio_unlock_as_irq(&kona_gpio->gpio_chip, d->hwirq);
static struct irq_chip bcm_gpio_irq_chip = {
.name = "bcm-kona-gpio",
.irq_ack = bcm_kona_gpio_irq_ack,
.irq_mask = bcm_kona_gpio_irq_mask,
.irq_unmask = bcm_kona_gpio_irq_unmask,
.irq_set_type = bcm_kona_gpio_irq_set_type,
.irq_startup = bcm_kona_gpio_irq_startup,
.irq_shutdown = bcm_kona_gpio_irq_shutdown,
static struct __initconst of_device_id bcm_kona_gpio_of_match[] = {
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