mfd: Don't try to flag IRQ 0 as a wm831x wake source

If we've not got a primary IRQ we shouldn't be trying to flag IRQ 0 as a
wake source.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 12 insertions, 11 deletions

diff --git a/drivers/mfd/wm831x-irq.c b/drivers/mfd/wm831x-irq.c
index bec4d0539160..2be9628074bd 100644
--- a/drivers/mfd/wm831x-irq.c
+++ b/drivers/mfd/wm831x-irq.c
@@ -565,17 +565,6 @@ int wm831x_irq_init(struct wm831x *wm831x, int irq)
         wm831x_set_bits(wm831x, WM831X_IRQ_CONFIG,
                         WM831X_IRQ_OD, i);
 
-        /* Try to flag /IRQ as a wake source; there are a number of
-         * unconditional wake sources in the PMIC so this isn't
-         * conditional but we don't actually care *too* much if it
-         * fails.
-         */
-        ret = enable_irq_wake(irq);
-        if (ret != 0) {
-                dev_warn(wm831x->dev, "Can't enable IRQ as wake source: %d\n",
-                         ret);
-        }
-
         wm831x->irq = irq;
 
         /* Register them with genirq */
@@ -597,6 +586,18 @@ int wm831x_irq_init(struct wm831x *wm831x, int irq)
         }
 
         if (irq) {
+                /* Try to flag /IRQ as a wake source; there are a number of
+                 * unconditional wake sources in the PMIC so this isn't
+                 * conditional but we don't actually care *too* much if it
+                 * fails.
+                 */
+                ret = enable_irq_wake(irq);
+                if (ret != 0) {
+                        dev_warn(wm831x->dev,
+                                 "Can't enable IRQ as wake source: %d\n",
+                                 ret);
+                }
+
                 ret = request_threaded_irq(irq, NULL, wm831x_irq_thread,
                                            IRQF_TRIGGER_LOW | IRQF_ONESHOT,
                                            "wm831x", wm831x);