linux-kernel - Re: [PATCH v2 04/21] dt-bindings: gpu: img: Allow dma-coherent

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Message-ID: <dvqeqopwztjk2odgtdzsncklj36aaii3wsmzsf4b2qlsv55ru5@wplvvf6oqmvz>
Date: Wed, 20 Nov 2024 09:27:56 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Matt Coster <matt.coster@...tec.com>
Cc: Frank Binns <frank.binns@...tec.com>, David Airlie <airlied@...il.com>, 
	Simona Vetter <simona@...ll.ch>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Nishanth Menon <nm@...com>, 
	Vignesh Raghavendra <vigneshr@...com>, Tero Kristo <kristo@...nel.org>, dri-devel@...ts.freedesktop.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, Randolph Sapp <rs@...com>, Darren Etheridge <detheridge@...com>
Subject: Re: [PATCH v2 04/21] dt-bindings: gpu: img: Allow dma-coherent

On Mon, Nov 18, 2024 at 01:01:56PM +0000, Matt Coster wrote:
> This attribute will be required for the BXS-4-64 MC1 and will be enabled in
> the DTS for the TI k3-j721s2 in a subsequent patch; add it now so
> dtbs_check doesn't complain later.

That's not a reason. You add it because device is DMA coherent, not for
some imaginary future checker errors.

Best regards,
Krzysztof