From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lucas Stach <l.stach@pengutronix.de>
Subject: Re: [Sound-open-firmware] [PATCH v2 1/5] ASoC: SOF: imx: Add i.MX8
 HW support
Date: Wed, 24 Jul 2019 10:32:44 +0200
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To: Daniel Baluta <daniel.baluta@gmail.com>, Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>, Aisheng Dong <aisheng.dong@nxp.com>, Peng Fan <peng.fan@nxp.com>, Fabio Estevam <festevam@gmail.com>, Anson Huang <anson.huang@nxp.com>, Devicetree List <devicetree@vger.kernel.org>, Daniel Baluta <daniel.baluta@nxp.com>, "S.j. Wang" <shengjiu.wang@nxp.com>, Marco Felsch <m.felsch@pengutronix.de>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Paul Olaru <paul.olaru@nxp.com>, Rob Herring <robh+dt@kernel.org>, dl-linux-imx <linux-imx@nxp.com>, Pengutronix Kernel Team <kernel@pengutronix.de>, Leonard Crestez <leonard.crestez@nxp.com>, Shawn Guo <shawnguo@kernel.org>, linux-arm-kernel <linux-arm-kernel@lists.infradead.org>, sound-open-firmware@alsa-project.org
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Hi Daniel,

Am Mittwoch, den 24.07.2019, 09:54 +0300 schrieb Daniel Baluta:
> On Tue, Jul 23, 2019 at 6:18 PM Pierre-Louis Bossart
[...]
> 
> > Also are all the resources device-managed, I don't see a remove()?
> 
> Good catch for pm stuff. We mostly didn't care about remove because
> drivers are always Y in our distribution.

Linux drivers need to be hotplug aware, even if they are not built as a
module. You can test things by manually unbinding the driver from the
device via sysfs.

Regards,
Lucas