Re: Mainpine IQ Express Rev3 problems beginning 2.6.36

[Greg KH <greg@kroah.com>]

On Fri, Dec 17, 2010 at 05:25:19AM -0800, Lee Howard wrote:
> > -----Original Message-----
> > From: linux-serial-owner@vger.kernel.org 
> > [mailto:linux-serial-owner@vger.kernel.org] On Behalf Of Lee Howard
> > Sent: Tuesday, December 14, 2010 11:50 AM
> > To: 'Greg KH'
> > Cc: linux-serial@vger.kernel.org
> > Subject: RE: Mainpine IQ Express Rev3 problems beginning 2.6.36
> > 
> > > -----Original Message-----
> > > From: Greg KH [mailto:greg@kroah.com]
> > > Sent: Sunday, December 12, 2010 8:52 AM
> > 
> > > As for build issues, try to make a minimal working config for your 
> > > system, using 'make localmodconfig'.  That will speed up your build 
> > > time immensely as well as reduce your chances of build and runtime 
> > > problems with the intermediate kernels.
> > 
> > Thank-you, that did help immensely.
> > 
> > Here's the 'git bisect' result...
> > 
> > --------------
> > 7a56aa45982bb87bfca98a2832b5ae782c03364a is the first bad 
> > commit commit 7a56aa45982bb87bfca98a2832b5ae782c03364a
> > Author: Yegor Yefremov <yegor_sub1@visionsystems.de>
> > Date:   Wed Jun 16 16:29:55 2010 +0200
> > 
> >     serial: add UART_CAP_EFR and UART_CAP_SLEEP flags to 
> > 16C950 UARTs definition
> >     
> >     Adding UART_CAP_EFR and UART_CAP_SLEEP flags will enable 
> > sleep mode
> >     and automatic CTS flow control for 16C950 UARTs. It will 
> > also avoid
> >     capabilities detection warning like this:
> >     
> >     "ttyS0: detected caps 00000700 should be 00000100"
> >     
> >     Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
> >     Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
> > 
> > :040000 040000 1776ca8d5c653834363c0778b5b404ee52bd2d69
> > b81cfe4f302a674935181bd248641873820517e5 M      drivers
> > --------------
> > 
> > Indeed, if I remove the UART_CAP_EFR flag from later kernel 
> > revisions there is no problem.
> 
> Greg,
> 
> What's to be done?

Sorry for the delay, I think Pavel's posted patch will solve this issue
for you, right?

thanks,

greg k-h