On Tue, May 08, 2012 at 11:42:42AM -0700, Rhyland Klein wrote:

> +	if (pdata->irq_base <= 0)
> +		pdata->irq_base = irq_alloc_descs(-1, 0, tps65910->irq_num, -1);
> +
> +	if (pdata->irq_base <= 0) {
> +		dev_err(tps65910->dev, "Failed to allocate irq descs: %d\n",
> +			pdata->irq_base);
> +		return pdata->irq_base;
> +	}

I'd expect the driver to always call irq_alloc_descs() but to use the
value specified in platform data if there is any.  This is the normal
way of doing things, anyway.