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Date: Mon, 01 Dec 2014 14:11:36 -0600
From: Timur Tabi <timur@tabi.org>
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To: Arnd Bergmann <arnd@arndb.de>
Subject: Re: [alsa-devel] [PATCH] ASoC: fsl_ssi: free irq before
 irq_dispose_mapping()
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Cc: alsa-devel@alsa-project.org, Lars-Peter Clausen <lars@metafoo.de>,
 Jiada Wang <jiada_wang@mentor.com>, Li.Xiubo@freescale.com,
 linux-kernel@vger.kernel.org, lgirdwood@gmail.com, nicoleotsuka@gmail.com,
 tiwai@suse.de, Mark Brown <broonie@kernel.org>,
 Markus Pargmann <mpa@pengutronix.de>, linuxppc-dev@lists.ozlabs.org
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On 12/01/2014 02:01 PM, Arnd Bergmann wrote:
>> >Does this mean that fsl_ssi.c should not be calling
>> >irq_of_parse_and_map?  How else should it get the IRQ?
> platform_get_irq()

Ok, but that function also calls irq_create_of_mapping().  So it still 
appears that the only way to get the IRQ is to map it, but then we can't 
use devm_request_irq().