summaryrefslogtreecommitdiffstats
path: root/drivers/mfd/wm831x-irq.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mfd/wm831x-irq.c')
-rw-r--r--drivers/mfd/wm831x-irq.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/mfd/wm831x-irq.c b/drivers/mfd/wm831x-irq.c
index 301327697117..4c1122ceb443 100644
--- a/drivers/mfd/wm831x-irq.c
+++ b/drivers/mfd/wm831x-irq.c
@@ -21,6 +21,7 @@
#include <linux/mfd/wm831x/core.h>
#include <linux/mfd/wm831x/pdata.h>
+#include <linux/mfd/wm831x/gpio.h>
#include <linux/mfd/wm831x/irq.h>
#include <linux/delay.h>
@@ -388,12 +389,41 @@ static void wm831x_irq_mask(unsigned int irq)
wm831x->irq_masks_cur[irq_data->reg - 1] |= irq_data->mask;
}
+static int wm831x_irq_set_type(unsigned int irq, unsigned int type)
+{
+ struct wm831x *wm831x = get_irq_chip_data(irq);
+ int val;
+
+ irq = irq - wm831x->irq_base;
+
+ if (irq < WM831X_IRQ_GPIO_1 || irq > WM831X_IRQ_GPIO_11)
+ return -EINVAL;
+
+ switch (type) {
+ case IRQ_TYPE_EDGE_BOTH:
+ val = WM831X_GPN_INT_MODE;
+ break;
+ case IRQ_TYPE_EDGE_RISING:
+ val = WM831X_GPN_POL;
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ val = 0;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return wm831x_set_bits(wm831x, WM831X_GPIO1_CONTROL + irq,
+ WM831X_GPN_INT_MODE | WM831X_GPN_POL, val);
+}
+
static struct irq_chip wm831x_irq_chip = {
.name = "wm831x",
.bus_lock = wm831x_irq_lock,
.bus_sync_unlock = wm831x_irq_sync_unlock,
.mask = wm831x_irq_mask,
.unmask = wm831x_irq_unmask,
+ .set_type = wm831x_irq_set_type,
};
/* The processing of the primary interrupt occurs in a thread so that