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

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Date:	Mon, 7 Mar 2016 02:35:28 +0000
From:	Qiang Zhao <qiang.zhao@....com>
To:	Rob Herring <robh@...nel.org>
CC:	"oss@...error.net" <oss@...error.net>,
	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 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.

> 
> > +
> > +Properties for ucc_uart:
> > +port-number : port number of UCC-UART tx/rx-clock-name : should be
> > +"brg1"-"brg16" for internal clock source,
> > +		   should be "clk1"-"clk28" for external clock source.
> > +
> > +Example:
> > +
> > +	ucc_serial: ucc@...0 {
> > +		device_type = "serial";
> 
> Drop device_type. It should only be used in a few legacy cases.
> 
> Looks like the driver is matching on this. Please drop it from the driver too. I'd
> leave dts files for now, but they should be updated too later.

Ok, Thank you for your Reviewing, I will drop it

> 
> > +		compatible = "ucc_uart";
> > +		port-number = <1>;
> > +		rx-clock-name = "brg2";
> > +		tx-clock-name = "brg2";
> > +	};
> > --
> > 2.1.0.27.g96db324
> >