linux-kernel - Re: [PATCH 2/8] dt-bindings: display: panel-simple-dsi: Remove Samsung S6E3FC2 compatible

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Message-ID: <20251002010512.GA2810258-robh@kernel.org>
Date: Wed, 1 Oct 2025 20:05:12 -0500
From: Rob Herring <robh@...nel.org>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: david@...t.cz, Neil Armstrong <neil.armstrong@...aro.org>,
	Jessica Zhang <jessica.zhang@....qualcomm.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Sam Ravnborg <sam@...nborg.org>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	Casey Connolly <casey.connolly@...aro.org>,
	dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	phone-devel@...r.kernel.org
Subject: Re: [PATCH 2/8] dt-bindings: display: panel-simple-dsi: Remove
 Samsung S6E3FC2 compatible

On Thu, Sep 25, 2025 at 11:51:47PM +0300, Dmitry Baryshkov wrote:
> On Thu, Sep 25, 2025 at 11:12:48AM +0200, David Heidelberg via B4 Relay wrote:
> > From: David Heidelberg <david@...t.cz>
> > 
> > Follow up commit introduce the proper device tree definition for the DDIC.
> 
> And the reason being?
> 
> > 
> > Signed-off-by: David Heidelberg <david@...t.cz>
> > ---
> >  Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml | 2 --
> >  1 file changed, 2 deletions(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
> > index 9b92a05791ccf99061ab7a1e01937bb832a96fe6..6c1249a224c8a170b33fd3f331f985f16914cb2c 100644
> > --- a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
> > +++ b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
> > @@ -56,8 +56,6 @@ properties:
> >        - panasonic,vvx10f034n00
> >          # Samsung s6e3fa7 1080x2220 based AMS559NK06 AMOLED panel
> >        - samsung,s6e3fa7-ams559nk06
> > -        # Samsung s6e3fc2x01 1080x2340 AMOLED panel
> > -      - samsung,s6e3fc2x01

If this is already in use, you can't just remove it. In the end, 
compatible is just a unique id. So if this referred to a specific panel 
used, then we are stuck with it even if the naming is not ideal.

Rob