linux-kernel - Re: [PATCH V2] acpi:apd:add AMD ACPI2Platform device support for x86 system.

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Date:	Tue, 3 Feb 2015 12:15:33 +0200
From:	"mika.westerberg@...ux.intel.com" <mika.westerberg@...ux.intel.com>
To:	Ken Xue <Ken.Xue@....com>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"andy.shevchenko@...il.com" <andy.shevchenko@...il.com>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2] acpi:apd:add AMD ACPI2Platform device support for x86
 system.

On Tue, Feb 03, 2015 at 05:55:25PM +0800, Ken Xue wrote:
> On Tue, 2015-02-03 at 11:53 +0200, mika.westerberg@...ux.intel.com
> wrote:
> > On Tue, Feb 03, 2015 at 09:04:55AM +0800, Ken Xue wrote:
> > > as you said, platform_drv_probe calls dev_pm_domain_attach(). but
> > > platform_drv_probe just is a default probe routine. Not all platform
> > > device drivers use this probe routine. so, codes here may be still
> > > necessary.
> > 
> > Are you saying that for platform devices there is some other path to get
> > a driver probed, other than platform_drv_probe()? Can you point me to
> > it?
> >From the codes, i can see there is a possibility that drv->driver.probe
> may not be set in __platform_driver_register. But i really can not point
> out a use case that platform device driver without probe.
> so, it is safe to remove "dev_pm_domain_attach" in
> "acpi_apd_platform_notify". right?

In that case, I think so, yes.
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