linux-kernel - Re: [PATCH v3 2/2] dt-bindings: imx: ldb: Add ddc-i2c-bus property

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Message-ID: <1461915852.3521.3.camel@pengutronix.de>
Date:	Fri, 29 Apr 2016 09:44:12 +0200
From:	Philipp Zabel <p.zabel@...gutronix.de>
To:	Rob Herring <robh@...nel.org>
Cc:	Akshay Bhat <akshay.bhat@...esys.com>, airlied@...ux.ie,
	steve_longerbeam@...tor.com, dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/2] dt-bindings: imx: ldb: Add ddc-i2c-bus property

Am Donnerstag, den 28.04.2016, 16:48 -0500 schrieb Rob Herring:
> On Wed, Apr 27, 2016 at 04:23:34PM -0400, Akshay Bhat wrote:
> > Document the ddc-i2c-bus property used by imx-ldb driver to read EDID
> > information via I2C interface.
> > 
> > Signed-off-by: Akshay Bhat <akshay.bhat@...esys.com>
> > ---
> > 
> > v3:
> > Newly added.
> > 
> >  Documentation/devicetree/bindings/display/imx/ldb.txt | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/display/imx/ldb.txt b/Documentation/devicetree/bindings/display/imx/ldb.txt
> > index 0a175d9..a407462 100644
> > --- a/Documentation/devicetree/bindings/display/imx/ldb.txt
> > +++ b/Documentation/devicetree/bindings/display/imx/ldb.txt
> > @@ -62,6 +62,7 @@ Required properties:
> >     display-timings are used instead.
> >  
> >  Optional properties (required if display-timings are used):
> 
> The required part doesn't make sense if you add this, but...
> 
> > + - ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
> 
> Really, this should be part of a connector node since i2c goes from the 
> i2c controller to a connector and is not part of the display controller.

If the ddc i2c bus does indeed go through a connector, yes. Would that
warrant a generic "lvds-connector" binding for all those different types
of internal LVDS connectors?

regards
Philipp