linux-kernel - Re: [PATCH 2/5] gpu: drm: adp: Add Apple Display Pipe driver

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Message-ID: <CAMT+MTS3Nmy=RzsE4wUf=jHBsu8ghyyqpXWPyB8qoR+W3EUscw@mail.gmail.com>
Date: Mon, 25 Nov 2024 14:14:47 +0100
From: Sasha Finkelstein <fnkl.kernel@...il.com>
To: neil.armstrong@...aro.org
Cc: Hector Martin <marcan@...can.st>, Sven Peter <sven@...npeter.dev>, 
	Alyssa Rosenzweig <alyssa@...enzweig.io>, 
	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>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Jessica Zhang <quic_jesszhan@...cinc.com>, asahi@...ts.linux.dev, 
	linux-arm-kernel@...ts.infradead.org, dri-devel@...ts.freedesktop.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Janne Grunau <j@...nau.net>
Subject: Re: [PATCH 2/5] gpu: drm: adp: Add Apple Display Pipe driver

On Mon, 25 Nov 2024 at 13:57, <neil.armstrong@...aro.org> wrote:
>
> On 25/11/2024 12:24, Sasha Finkelstein wrote:
> > On Mon, 25 Nov 2024 at 09:50, Neil Armstrong <neil.armstrong@...aro.org> wrote:
> >>
> >> So this controller only supports a single mode ???????
> >>
> > Most likely. On all devices it is connected to a single built-in display.
> >
> > Ack on all other changes, will be fixed for v2.
>
> OK, so instead make the panel driver return this single mode
> and from the display driver just filter out anything that's
> not ADP_SCREEN_VSIZE & ADP_SCREEN_HSIZE.

Not sure i follow, you want the mode hardcoded in the panel driver
and the controller driver to fetch and return that?