linux-kernel - Re: [PATCH v4 2/5] drm: adp: Add Apple Display Pipe driver

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Message-ID: <CAMT+MTTrvXsYONQj0V5U+dPJtCBOAQ-Lfg7NONMB6onMvJ+3QA@mail.gmail.com>
Date: Fri, 17 Jan 2025 15:17:32 +0100
From: Sasha Finkelstein <fnkl.kernel@...il.com>
To: Maxime Ripard <mripard@...nel.org>
Cc: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, Hector Martin <marcan@...can.st>, 
	Sven Peter <sven@...npeter.dev>, Alyssa Rosenzweig <alyssa@...enzweig.io>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 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, Alyssa Ross <hi@...ssa.is>, Janne Grunau <j@...nau.net>
Subject: Re: [PATCH v4 2/5] drm: adp: Add Apple Display Pipe driver

On Fri, 17 Jan 2025 at 11:24, Maxime Ripard <mripard@...nel.org> wrote:
> >
> > I was thinking about using drmm_ here, as the DRM device is also created
> > and destroyed each time. But I might be mistaken here.
>
> Ah, right, it makes sense then, thanks!
> Maxime

Not sure i understand. The drm device is created in probe(), and is
destroyed by devm.
I do not see a path where it can be created/destroyed without a trip
via probe/remove,
and so tying the lifetime of the bridge in question to devm seems correct?