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path: root/drivers/mfd/wm831x-irq.c
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Diffstat (limited to 'drivers/mfd/wm831x-irq.c')
-rw-r--r--drivers/mfd/wm831x-irq.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/mfd/wm831x-irq.c b/drivers/mfd/wm831x-irq.c
index 23e66af89dea..42b928ec891e 100644
--- a/drivers/mfd/wm831x-irq.c
+++ b/drivers/mfd/wm831x-irq.c
@@ -515,12 +515,6 @@ int wm831x_irq_init(struct wm831x *wm831x, int irq)
0xffff);
}
- if (!irq) {
- dev_warn(wm831x->dev,
- "No interrupt specified - functionality limited\n");
- return 0;
- }
-
if (!pdata || !pdata->irq_base) {
dev_err(wm831x->dev,
"No interrupt base specified, no interrupts\n");
@@ -567,15 +561,22 @@ int wm831x_irq_init(struct wm831x *wm831x, int irq)
#endif
}
- ret = request_threaded_irq(irq, NULL, wm831x_irq_thread,
- IRQF_TRIGGER_LOW | IRQF_ONESHOT,
- "wm831x", wm831x);
- if (ret != 0) {
- dev_err(wm831x->dev, "Failed to request IRQ %d: %d\n",
- irq, ret);
- return ret;
+ if (irq) {
+ ret = request_threaded_irq(irq, NULL, wm831x_irq_thread,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ "wm831x", wm831x);
+ if (ret != 0) {
+ dev_err(wm831x->dev, "Failed to request IRQ %d: %d\n",
+ irq, ret);
+ return ret;
+ }
+ } else {
+ dev_warn(wm831x->dev,
+ "No interrupt specified - functionality limited\n");
}
+
+
/* Enable top level interrupts, we mask at secondary level */
wm831x_reg_write(wm831x, WM831X_SYSTEM_INTERRUPTS_MASK, 0);