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

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Message-ID: <20241105-linseed-steadfast-98cd8abe898c@spud>
Date: Tue, 5 Nov 2024 18:06:44 +0000
From: Conor Dooley <conor@...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 04/21] dt-bindings: gpu: img: Allow dma-coherent

On Tue, Nov 05, 2024 at 03:58:10PM +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.

Sounds like the property should be made required for that integration.

> 
> Signed-off-by: Matt Coster <matt.coster@...tec.com>
> ---
>  Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
> index 55f422be1bc5b7564e3e81f24c4b93857f3e12fe..8a1861ca960c48853b2ceef414f588cc343b49b2 100644
> --- a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
> +++ b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
> @@ -60,6 +60,8 @@ properties:
>            - const: a
>            - const: b
>  
> +  dma-coherent: true
> +
>  required:
>    - compatible
>    - reg
> 
> -- 
> 2.47.0
> 

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