diff options
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/wm831x-irq.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/mfd/wm831x-irq.c b/drivers/mfd/wm831x-irq.c index b23d8d5ee96c..1808deb8083b 100644 --- a/drivers/mfd/wm831x-irq.c +++ b/drivers/mfd/wm831x-irq.c @@ -527,13 +527,22 @@ int wm831x_irq_init(struct wm831x *wm831x, int irq) 0xffff); } - if (!pdata || !pdata->irq_base) { - dev_err(wm831x->dev, - "No interrupt base specified, no interrupts\n"); + /* Try to dynamically allocate IRQs if no base is specified */ + if (!pdata || !pdata->irq_base) + wm831x->irq_base = -1; + else + wm831x->irq_base = pdata->irq_base; + + wm831x->irq_base = irq_alloc_descs(wm831x->irq_base, 0, + WM831X_NUM_IRQS, 0); + if (wm831x->irq_base < 0) { + dev_warn(wm831x->dev, "Failed to allocate IRQs: %d\n", + wm831x->irq_base); + wm831x->irq_base = 0; return 0; } - if (pdata->irq_cmos) + if (pdata && pdata->irq_cmos) i = 0; else i = WM831X_IRQ_OD; @@ -553,7 +562,6 @@ int wm831x_irq_init(struct wm831x *wm831x, int irq) } wm831x->irq = irq; - wm831x->irq_base = pdata->irq_base; /* Register them with genirq */ for (cur_irq = wm831x->irq_base; |