Re: [PATCH v1] USB: OTG should be linked before Host

[Felipe Balbi]

On Wed, Nov 23, 2011 at 11:19:44PM -0800, Neil Zhang wrote:
> > -----Original Message-----
> > From: Peter Chen [mailto:hzpeterchen@xxxxxxxxx]
> > Sent: 2011å11æ24æ 14:06
> > To: Greg KH
> > Cc: Neil Zhang; balbi@xxxxxx; Haojian Zhuang; linux-usb@xxxxxxxxxxxxxxx
> > Subject: Re: [PATCH v1] USB: OTG should be linked before Host
> > 
> > On Thu, Nov 24, 2011 at 12:17 AM, Greg KH <gregkh@xxxxxxx> wrote:
> > > On Wed, Nov 23, 2011 at 06:38:48PM +0800, Neil Zhang wrote:
> > >> For OTG controller, the host driver will call function
> > >> otg_get_transceiver to get the otg transceiver, so we need to init
> > the
> > >> OTG driver before HOST.
> > >
> > I agree with it, at freescale i.mx platform, we also need to init otg
> > first, then the host
> > if otg function is enabled.
> > 
> > > How do you handle this if these drivers are built as modules?
> > We require the user load module by order, and write it at UserGuide.
> > 
> > I find at older kernel version, like 2.6.38, the otg was built firstly
> > at usb module.
> 
> Actually, it was changed by the following patch.
> 
> commit 4661ffc91befc8c5ee080720120da1d53851060a
> Author: Felipe Balbi <balbi@xxxxxx>
> Date:   Thu Apr 7 10:59:34 2011 +0300
> 
>     usb: don't enter usb subdirectories directly
> 
>     Instead, make we enter usb/ directory on all
>     needed cases and enter the subdirectories from
>     drivers/usb/Makefile.
> 
>     Signed-off-by: Felipe Balbi <balbi@xxxxxx>
>     Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
> 
> Hi Balbi,
> Do you have any concern to change it?

not from my side, we need the transceivers before the DRD controllers
can probe.

FWIW:

Acked-by: Felipe Balbi <balbi@xxxxxx>

-- 
balbi

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