Re: [Xen-devel] [PATCH v1] xen/arm: Add r1p12 to the list of supported Cadence UARTs

["Edgar E. Iglesias" <edgar.iglesias@xxxxxxxxx>]

On Fri, Jan 15, 2016 at 01:46:05PM +0000, Ian Campbell wrote:
> On Fri, 2016-01-15 at 14:30 +0100, Edgar E. Iglesias wrote:
> > On Fri, Jan 15, 2016 at 12:30:27PM +0000, Ian Campbell wrote:
> > > On Thu, 2016-01-14 at 19:44 +0100, Edgar E. Iglesias wrote:
> > > > From: "Edgar E. Iglesias" <edgar.iglesias@xxxxxxxxxx>
> > > 
> > > Where are the bindings for cdns,uart-r1p12 defined? I don't see it
> > > mentioned in the Documentation/devicetree/bindings/serial/cdns,uart.txt
> > > in
> > > mainline Linux.
> > 
> > Hi Ian,
> > 
> > The bindings are currently in our queue:
> > https://github.com/Xilinx/linux-
> > xlnx/blob/master/Documentation/devicetree/bindings/serial/cdns%2Cuart.txt
> 
> Great, thanks.
> > 
> > > Does the driver need to differ at all compared with what is needed for
> > > r1p8? Normally if there is no (practical/visible) difference then in
> > > DT-
> > > world there is no need for a new compatible string, since the device is
> > > still compatible.
> > > 
> > > If there are differences in the h/w but they are not relevant to our
> > > particular driven then please say so in the commit log.
> > 
> > Right, there are SW visible differences (the Linux driver uses them) but
> > none affecting XEN. I'll note that in the commit message.
> 
> If you want to just supply some words here I'll fold them in upon commit.
> Or feel free to send a v2 if you prefer.

Thanks Ian, I've inlined something here.
BTW, what is the policy for getting patches into -stable?
It would be great if this patch could be taken in to have
XEN 4.6.x work out of the box on ZynqMPSoC with updated
DTBs.

Best regards,
Edgar

New commit message:
xen/arm: Add r1p12 to the list of supported Cadence UARTs

Add r1p12 to the list of supported Cadence UARTs. XEN only
uses the subset of features available in r1p8, so we don't
need to differentiate between r1p8 and r1p12 yet.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xxxxxxxxxx>

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