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

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Message-ID: <1422957325.18208.13.camel@kxue-X58A-UD3R>
Date:	Tue, 3 Feb 2015 17:55:25 +0800
From:	Ken Xue <Ken.Xue@....com>
To:	"mika.westerberg@...ux.intel.com" <mika.westerberg@...ux.intel.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, 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?

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