linux-kernel - Re: [PATCH v3 3/7] QE: Add uqe

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Date:	Mon, 07 Mar 2016 11:28:06 -0600
From:	Scott Wood <oss@...error.net>
To:	Qiang Zhao <qiang.zhao@....com>, Rob Herring <robh@...nel.org>
Cc:	Yang-Leo Li <leoyang.li@....com>, Xiaobo Xie <xiaobo.xie@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>
Subject: Re: [PATCH v3 3/7] QE: Add uqe_serial document to bindings

On Mon, 2016-03-07 at 02:35 +0000, Qiang Zhao wrote:
> On Tue, Mar 05, 2016 at 12:26PM, Rob Herring wrote:
> > -----Original Message-----
> > From: Rob Herring [mailto:robh@...nel.org]
> > Sent: Saturday, March 05, 2016 12:26 PM
> > To: Qiang Zhao <qiang.zhao@....com>
> > Cc: oss@...error.net; Yang-Leo Li <leoyang.li@....com>; Xiaobo Xie
> > <xiaobo.xie@....com>; linux-kernel@...r.kernel.org;
> > devicetree@...r.kernel.org; linuxppc-dev@...ts.ozlabs.org
> > Subject: Re: [PATCH v3 3/7] QE: Add uqe_serial document to bindings
> > 
> > On Tue, Mar 01, 2016 at 03:09:39PM +0800, Zhao Qiang wrote:
> > > Add uqe_serial document to
> > > Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/uqe_serial.txt
> > > 
> > > Signed-off-by: Zhao Qiang <qiang.zhao@....com>
> > > ---
> > > Changes for v2
> > > 	- modify tx/rx-clock-name specification Changes for v2
> > > 	- NA
> > > 
> > >  .../bindings/powerpc/fsl/cpm_qe/uqe_serial.txt        | 19
> > +++++++++++++++++++
> > >  1 file changed, 19 insertions(+)
> > >  create mode 100644
> > > Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/uqe_serial.txt
> > > 
> > > diff --git
> > > a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/uqe_serial.txt
> > > b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/uqe_serial.txt
> > > new file mode 100644
> > > index 0000000..436c71c
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/uqe_serial.
> > > +++ txt
> > > @@ -0,0 +1,19 @@
> > > +* Serial
> > > +
> > > +Currently defined compatibles:
> > > +- ucc_uart
> > 
> > I guess this is in use already and okay. However, looking at the driver
> > there
> > really should be SoC specific compatible strings here since the driver is
> > looking
> > up the SoC compatible string and composing the firmware filename from
> > that.
> 
> Ok, I will changed both driver and this compatible.

But don't break existing device trees while doing so.

-Scott