The PL061 supports interrupts and those can be wakeup interrupts. We
need to provide support for configuring those interrupts as wakeup
sources.
This patch adds irq_set_wake callback for PL061 so that GPIO interrupts
can be configured as wakeup.
Cc: Linus Walleij <linus.wall...@linaro.org>
Cc: Alexandre Courbot <gnu...@gmail.com>
Signed-off-by: Sudeep Holla <sudeep.ho...@arm.com>
---
drivers/gpio/gpio-pl061.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index 4d4b37676702..8b1cbd5767f9 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/io.h>
#include <linux/ioport.h>
+#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/bitops.h>
@@ -269,12 +270,20 @@ static void pl061_irq_ack(struct irq_data *d)
spin_unlock(&chip->lock);
}
+static int pl061_irq_set_wake(struct irq_data *d, unsigned int state)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+
+ return irq_set_irq_wake(gc->irq_parent, state);
+}
+
static struct irq_chip pl061_irqchip = {
.name = "pl061",
.irq_ack = pl061_irq_ack,
.irq_mask = pl061_irq_mask,
.irq_unmask = pl061_irq_unmask,
.irq_set_type = pl061_irq_type,
+ .irq_set_wake = pl061_irq_set_wake,
};
static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-gpio" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
