linux-kernel - Re: [PATCH v7 2/5] drm: adp: Add Apple Display Pipe driver

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Message-ID: <CAMT+MTS016CLK7cawdF2kKv2tpGH-N4p3rqGLBPLkPv4A=j67g@mail.gmail.com>
Date: Mon, 17 Feb 2025 14:30:13 +0100
From: Sasha Finkelstein <fnkl.kernel@...il.com>
To: Thomas Zimmermann <tzimmermann@...e.de>
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>, 
	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, Janne Grunau <j@...nau.net>, linux-arm-kernel@...ts.infradead.org, 
	dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Alyssa Ross <hi@...ssa.is>, 
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, Neal Gompa <neal@...pa.dev>
Subject: Re: [PATCH v7 2/5] drm: adp: Add Apple Display Pipe driver

On Mon, 17 Feb 2025 at 14:22, Thomas Zimmermann <tzimmermann@...e.de> wrote:
> Unless the described problem really happens
> in practice, I'd drop this workaround. There's no point in working
> around legacy userspace in modern drivers.

This workaround was put in place after we noticed x11 either preventing
the userspace daemon from working, or breaking itself. So, yes,
it does happen in practice.