linux-kernel - RE: [EXT] Re: [v1 1/4] dt-bindings: display: Add DT bindings for LS1028A HDP-TX PHY.

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Message-ID: <DB7PR04MB51951DC431B5810DCDD9C776E2E40@DB7PR04MB5195.eurprd04.prod.outlook.com>
Date:   Thu, 20 Jun 2019 03:35:28 +0000
From:   Wen He <wen.he_1@....com>
To:     Rob Herring <robh@...nel.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        Leo Li <leoyang.li@....com>
Subject: RE: [EXT] Re: [v1 1/4] dt-bindings: display: Add DT bindings for
 LS1028A HDP-TX PHY.



> -----Original Message-----
> From: Rob Herring <robh@...nel.org>
> Sent: 2019年6月19日 22:07
> To: Wen He <wen.he_1@....com>
> Cc: linux-kernel@...r.kernel.org; linux-arm-kernel@...ts.infradead.org;
> devicetree@...r.kernel.org; shawnguo@...nel.org; Leo Li
> <leoyang.li@....com>
> Subject: Re: [EXT] Re: [v1 1/4] dt-bindings: display: Add DT bindings for
> LS1028A HDP-TX PHY.
> 
> Caution: EXT Email
> 
> On Sun, Jun 16, 2019 at 7:45 PM Wen He <wen.he_1@....com> wrote:
> >
> >
> >
> > > -----Original Message-----
> > > From: Rob Herring <robh@...nel.org>
> > > Sent: 2019年6月14日 4:08
> > > To: Wen He <wen.he_1@....com>
> > > Cc: linux-kernel@...r.kernel.org;
> > > linux-arm-kernel@...ts.infradead.org;
> > > devicetree@...r.kernel.org; shawnguo@...nel.org; Leo Li
> > > <leoyang.li@....com>
> > > Subject: [EXT] Re: [v1 1/4] dt-bindings: display: Add DT bindings
> > > for LS1028A HDP-TX PHY.
> > >
> > > Caution: EXT Email
> > >
> > > On Wed, May 08, 2019 at 10:35:25AM +0000, Wen He wrote:
> > > > Add DT bindings documentmation for the HDP-TX PHY controller. The
> > > > describes which could be found on NXP Layerscape ls1028a platform.
> > >
> > > Drop the hard stop (.) from the subject.
> > >
> > > >
> > > > Signed-off-by: Wen He <wen.he_1@....com>
> > > > ---
> > > >  .../devicetree/bindings/display/fsl,hdp.txt   | 56
> +++++++++++++++++++
> > > >  1 file changed, 56 insertions(+)
> > > >  create mode 100644
> > > > Documentation/devicetree/bindings/display/fsl,hdp.txt
> > > >
> > > > diff --git a/Documentation/devicetree/bindings/display/fsl,hdp.txt
> > > > b/Documentation/devicetree/bindings/display/fsl,hdp.txt
> > > > new file mode 100644
> > > > index 000000000000..36b5687a1261
> > > > --- /dev/null
> > > > +++ b/Documentation/devicetree/bindings/display/fsl,hdp.txt
> > > > @@ -0,0 +1,56 @@
> > > > +NXP Layerscpae ls1028a HDP-TX PHY Controller
> > > > +============================================
> > > > +
> > > > +The following bindings describe the Cadence HDP TX PHY on ls1028a
> > > > +that offer multi-protocol support of standars such as eDP and
> > > > +Displayport, supports for 25-600MHz pixel clock and up to 4k2k at
> > > > +60MHz
> > > resolution.
> > > > +The HDP transmitter is a Cadence HDP TX controller IP with a
> > > > +companion PHY IP.
> > >
> > > I'm confused. This binding covers both blocks or is just one of them?
> > >
> >
> > Hi Rob,
> >
> > This binding covers both blocks(HDP TX PHY and HDP TX Controller),
> > Because they are belong to the one IP.
> 
> In that case, you should also have an output port to a DP connector node (or
> DP panel).

Hi Rob,

I remember there are included the DP connector node description as see below.

---
Required sub-nodes:
- port

It there should be right?

Best Regards,
Wen

> 
> Rob