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.
Only compile tested on the lpc32xx. Cc: Lars Poeschel <[email protected]> Cc: Thierry Reding <[email protected]> Signed-off-by: Linus Walleij <[email protected]> --- drivers/gpio/gpio-adnp.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c index b204033acaeb..bf6fb54fa436 100644 --- a/drivers/gpio/gpio-adnp.c +++ b/drivers/gpio/gpio-adnp.c @@ -408,6 +408,24 @@ static void adnp_irq_bus_unlock(struct irq_data *data) mutex_unlock(&adnp->irq_lock); } +static unsigned int adnp_irq_startup(struct irq_data *data) +{ + struct adnp *adnp = irq_data_get_irq_chip_data(data); + + if (gpio_lock_as_irq(&adnp->gpio, data->hwirq)) + dev_err(adnp->gpio.dev, + "unable to lock HW IRQ %lu for IRQ\n", + data->hwirq); + return 0; +} + +static void adnp_irq_shutdown(struct irq_data *data) +{ + struct adnp *adnp = irq_data_get_irq_chip_data(data); + + gpio_unlock_as_irq(&adnp->gpio, data->hwirq); +} + static struct irq_chip adnp_irq_chip = { .name = "gpio-adnp", .irq_mask = adnp_irq_mask, @@ -415,6 +433,8 @@ static struct irq_chip adnp_irq_chip = { .irq_set_type = adnp_irq_set_type, .irq_bus_lock = adnp_irq_bus_lock, .irq_bus_sync_unlock = adnp_irq_bus_unlock, + .irq_startup = adnp_irq_startup, + .irq_shutdown = adnp_irq_shutdown, }; static int adnp_irq_map(struct irq_domain *domain, unsigned int irq, -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
