linux-kernel - Re: [PATCH 5/6 v3] mfd: tps65910-irq: Add devicetree init support

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Date:	Tue, 8 May 2012 16:48:21 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Rhyland Klein <rklein@...dia.com>
Cc:	Samuel Ortiz <sameo@...ux.intel.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	Liam Girdwood <lrg@...com>, linux-kernel@...r.kernel.org,
	devicetree-discuss@...ts.ozlabs.org
Subject: Re: [PATCH 5/6 v3] mfd: tps65910-irq: Add devicetree init support

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.

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