[PATCH] tty: add a DesignWare 8250 driver

Greg KH greg at kroah.com
Sat Aug 27 03:57:11 EST 2011


On Fri, Aug 26, 2011 at 05:20:21PM +0100, Jamie Iles wrote:
> On Fri, Aug 26, 2011 at 06:04:02PM +0200, Arnd Bergmann wrote:
> > On Friday 26 August 2011, Jamie Iles wrote:
> > > The Synopsys DesignWare 8250 is an 8250 that has an extra interrupt that
> > > gets raised when writing to the LCR when busy.  To handle this we need
> > > special serial_out, serial_in and handle_irq methods.  Add a new
> > > platform driver that uses these accessors.
> > > 
> > > Cc: Alan Cox <alan at linux.intel.com>
> > > Cc: Greg Kroah-Hartman <gregkh at suse.de>
> > > Cc: Arnd Bergmann <arnd at arndb.de>
> > > Signed-off-by: Jamie Iles <jamie at jamieiles.com>
> > 
> > The driver looks good to me,
> > 
> > Acked-by: Arnd Bergmann <arnd at arndb.de>
> > 
> > Is the patch to export serial8250_handle_irq already in Greg's tree or is that
> > still missing?
> 
> No, and I really don't know how I missed it.  I was sure an allmodconfig 
> build worked, but perhaps 8250_dw wasn't selected.  Anyhow, here's the 
> patch that does that.
> 
> Apologies again for making such a mess out of this series!
> 
> Thanks,
> 
> Jamie
> 
> 8<---
> 
> From: Jamie Iles <jamie at jamieiles.com>
> Subject: [PATCH] tty: 8250: export serial8250_handle_irq
> 
> Allow modules to use the normal 8250 irq handler inside their own.

So this patch needs to be applied before the first one here, right?

Care to just resend the patches again, in the right order, so I am sure
to get it correct?

confused,

greg k-h


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