linux-kernel - Re: [PATCH v4 1/1] usb: ulpi: ulpi_init should be executed in subsys

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Message-ID: <20150604121700.GA6283@kuha.fi.intel.com>
Date:	Thu, 4 Jun 2015 15:17:00 +0300
From:	Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:	"Lu, Baolu" <baolu.lu@...ux.intel.com>
Cc:	David Cohen <david.a.cohen@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, balbi@...com,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	qiuxu.zhuo@...el.com
Subject: Re: [PATCH v4 1/1] usb: ulpi: ulpi_init should be executed in
 subsys_initcall

Hi Baolu,

On Thu, May 28, 2015 at 08:50:12AM +0800, Lu, Baolu wrote:
> On 05/28/2015 12:53 AM, David Cohen wrote:
> >Hi,
> >
> >On Tue, May 26, 2015 at 07:37:02PM -0700, Greg Kroah-Hartman wrote:
> >>On Wed, May 27, 2015 at 09:45:37AM +0800, Lu Baolu wrote:
> >>>Phy drivers and the ulpi interface providers depend on the
> >>>registration of the ulpi bus.  Ulpi registers the bus in
> >>>module_init(). This could cause unnecessary probe delays.
> >>What do you mean by "probe delays"?
> >I believe he meant the bus users' probe delays. i.e. unnecessary
> >-EPROBE_DEFER happening on ulpi_drivers in case they're registered
> >before ulpi bus itself.
> >
> >Is that correct, Baolu?
> 
> Yes.

Could you prepare one more version of this patche with the change log
included.


Thanks,

-- 
heikki
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