linux-kernel - Re: [alsa-devel] [PATCH] ASoC: fsl_ssi: free irq before irq_dispose

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Message-ID: <CAOMZO5Cz60D5V2uKM4ivWp9s44XXqVsuEJhpmSWoBuq+yUvNMw@mail.gmail.com>
Date:	Mon, 1 Dec 2014 19:03:27 -0200
From:	Fabio Estevam <festevam@...il.com>
To:	Timur Tabi <timur@...i.org>
Cc:	Lars-Peter Clausen <lars@...afoo.de>,
	Arnd Bergmann <arnd@...db.de>,
	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	Jiada Wang <jiada_wang@...tor.com>,
	Xiubo Li <Li.Xiubo@...escale.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Nicolin Chen <nicoleotsuka@...il.com>,
	Takashi Iwai <tiwai@...e.de>, Mark Brown <broonie@...nel.org>,
	Markus Pargmann <mpa@...gutronix.de>,
	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>
Subject: Re: [alsa-devel] [PATCH] ASoC: fsl_ssi: free irq before irq_dispose_mapping()

On Mon, Dec 1, 2014 at 6:42 PM, Timur Tabi <timur@...i.org> wrote:

> Would the mapping continue to exist after the driver is unloaded?  Can you
> try multiple loads/unloads and see if interrupts still work?

I tried multiple loads/unloads and audio works fine with those changes.

About the ssi irq we have:

- With the ssi driver loaded:
root@...escale /home$ cat /proc/interrupts | grep ssi
 79:          0          0          0          0       GIC  79  202c000.ssi

- After removing the ssi driver:
root@...escale /home$ rmmod   snd-soc-fsl-ssi
root@...escale /home$ cat /proc/interrupts | grep ssi
root@...escale /home$

,so it seems to behave properly.
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