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From: Eric Anholt <eric@anholt.net>
To: Stefan Wahren <stefan.wahren@i2se.com>,
	Rob Herring <robh+dt@kernel.org>,
	bcm-kernel-feedback-list@broadcom.com,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	linux-rpi-kernel@lists.infradead.org,
	Mark Rutland <mark.rutland@arm.com>,
	Jon Mason <jonmason@broadcom.com>,
	dri-devel@lists.freedesktop.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/3] drm/vc4: Remove the need for the GPU-subsystem DT node.
Date: Tue, 10 Apr 2018 12:39:22 -0700	[thread overview]
Message-ID: <87efjmq2ad.fsf@anholt.net> (raw)
In-Reply-To: <8806871.109949.1523384893773@email.1und1.de>

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Stefan Wahren <stefan.wahren@i2se.com> writes:

> Hi Eric,
>
>> Eric Anholt <eric@anholt.net> hat am 10. April 2018 um 01:00 geschrieben:
>> 
>> 
>> The GPU subsystem node was a workaround to have a central device to
>> bind V3D and display to.  Following the lead of 246774d17fc0
>> ("drm/etnaviv: remove the need for a gpu-subsystem DT node"), remove
>> the subsystem node usage and just create a platform device for the DRM
>> device to attach to if any of the subsystem devices are present.
>
> i didn't test it. Does the code change keep the backward compatibility with older DT?

Yes.

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  reply	other threads:[~2018-04-10 19:39 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-09 23:00 Eric Anholt
2018-04-09 23:00 ` [PATCH 2/3] ARM: dts: bcm283x: Remove the vc4 GPU subsystem node Eric Anholt
2018-04-09 23:00 ` [PATCH 3/3] ARM: dts: cygnus: " Eric Anholt
2018-04-10 18:28 ` [PATCH 1/3] drm/vc4: Remove the need for the GPU-subsystem DT node Stefan Wahren
2018-04-10 19:39   ` Eric Anholt [this message]
2018-04-13 17:56 ` Rob Herring
2018-04-16 17:25   ` [PATCH v2 " Eric Anholt
2018-04-16 20:33     ` Rob Herring
2018-04-16 22:52       ` [PATCH v3 " Eric Anholt
2018-04-17 13:09         ` Rob Herring
2018-04-17 21:48           ` Eric Anholt

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