Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind...

[pandora-kernel.git] / drivers / mfd / wm831x-irq.c

diff --git a/drivers/mfd/wm831x-irq.c b/drivers/mfd/wm831x-irq.c
index 3013276..4c1122c 100644 (file)
--- 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