From: Maxime Ripard <maxime@cerno.tech>
To: Rob Herring <robh@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej.skrabec@siol.net>,
devicetree@vger.kernel.org, Frank Rowand <frowand.list@gmail.com>,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@googlegroups.com, dri-devel@lists.freedesktop.org,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Sam Ravnborg <sam@ravnborg.org>,
Thierry Reding <thierry.reding@gmail.com>
Subject: Re: [PATCH 10/54] dt-bindings: display: panel-lvds: Document panel compatibles
Date: Wed, 18 Aug 2021 14:43:04 +0200 [thread overview]
Message-ID: <20210818124304.2jxsf44bcbprcvbk@gilmour> (raw)
In-Reply-To: <20210722022947.GA3168293@robh.at.kernel.org>
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Hi Rob, Sam,
On Wed, Jul 21, 2021 at 08:29:47PM -0600, Rob Herring wrote:
> On Wed, Jul 21, 2021 at 04:03:40PM +0200, Maxime Ripard wrote:
> > The binding mentions that all the drivers using that driver must use a
> > vendor-specific compatible but never enforces it, nor documents the
> > vendor-specific compatibles.
> >
> > Let's make we document all of them, and that the binding will create an
> > error if we add one that isn't.
> >
> > Cc: dri-devel@lists.freedesktop.org
> > Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> > Cc: Sam Ravnborg <sam@ravnborg.org>
> > Cc: Thierry Reding <thierry.reding@gmail.com>
> > Signed-off-by: Maxime Ripard <maxime@cerno.tech>
> > ---
> > .../bindings/display/panel/lvds.yaml | 18 ++++++++++++------
> > 1 file changed, 12 insertions(+), 6 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/display/panel/lvds.yaml b/Documentation/devicetree/bindings/display/panel/lvds.yaml
> > index 49460c9dceea..d1513111eb48 100644
> > --- a/Documentation/devicetree/bindings/display/panel/lvds.yaml
> > +++ b/Documentation/devicetree/bindings/display/panel/lvds.yaml
> > @@ -31,12 +31,18 @@ allOf:
> >
> > properties:
> > compatible:
> > - contains:
> > - const: panel-lvds
> > - description:
> > - Shall contain "panel-lvds" in addition to a mandatory panel-specific
> > - compatible string defined in individual panel bindings. The "panel-lvds"
> > - value shall never be used on its own.
> > + items:
> > + - enum:
> > + - advantech,idk-1110wr
>
> At least this one is documented elsewhere.
Indeed, I missed it.
> You can add 'minItems: 2' if you want to just enforce having 2 compatibles. Or do:
>
> items:
> - {}
> - const: panel-lvds
>
> Which also enforces the order.
It's not just about the order since a missing compatible will also raise
a warning.
Some of those panels have a binding of their own, but some probably
won't (and I can't find anything specific about the one I'm most
interested in: tbs,a711-panel)
Can we have something like:
compatible:
oneOf:
- items:
- enum:
- tbs,a711-panel
- const: panel-lvds
- items:
- {}
- const: panel-lvds
That would work for both cases I guess?
Maxime
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next prev parent reply other threads:[~2021-08-18 12:43 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210721140424.725744-1-maxime@cerno.tech>
2021-07-21 14:03 ` [PATCH 10/54] dt-bindings: display: panel-lvds: Document panel compatibles Maxime Ripard
2021-07-21 14:14 ` Sam Ravnborg
2021-07-22 2:09 ` Rob Herring
2021-07-22 2:29 ` Rob Herring
2021-08-18 12:43 ` Maxime Ripard [this message]
2021-08-18 13:48 ` Rob Herring
2021-08-23 16:31 ` Maxime Ripard
2021-07-21 14:03 ` [PATCH 11/54] dt-bindings: display: simple-bridge: Add corpro, gm7123 compatible Maxime Ripard
2021-07-21 14:16 ` Sam Ravnborg
2021-07-22 9:44 ` Maxime Ripard
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