linux-kernel - Re: [PATCH 3/5] gpu: drm: adp: Add a backlight driver for the Summit LCD

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Message-ID: <CAMT+MTSetzODw-cbteQOgEYmEgpiFBVP5eDgjvyHGqofCU=VXg@mail.gmail.com>
Date: Tue, 26 Nov 2024 17:34:09 +0100
From: Sasha Finkelstein <fnkl.kernel@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: Nick Chan <towinchenmi@...il.com>, 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>, 
	Neil Armstrong <neil.armstrong@...aro.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
Subject: Re: [PATCH 3/5] gpu: drm: adp: Add a backlight driver for the Summit LCD

On Mon, 25 Nov 2024 at 16:07, Krzysztof Kozlowski <krzk@...nel.org> wrote:
>
> BTW, max-brightness is a property of backlight, not panel, I think.
This is an oled panel, so no separate backlight device, the mipi commands
just change the pixel brightness. There is prior art in other bindings on having
the max-brightness property attached to the panel itself.