linux-kernel - Re: [PATCH v4 02/13] dt-bindings: display: st,stm32-ltdc: add access-controllers property

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Message-ID: <e2a69447-a34c-4e2e-9bbc-3975b9ef08b7@foss.st.com>
Date: Fri, 22 Aug 2025 14:40:12 +0200
From: Yannick FERTRE <yannick.fertre@...s.st.com>
To: Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>,
        Philippe Cornu
	<philippe.cornu@...s.st.com>,
        Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        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>,
        "Maxime
 Coquelin" <mcoquelin.stm32@...il.com>,
        Alexandre Torgue
	<alexandre.torgue@...s.st.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Christophe Roullier
	<christophe.roullier@...s.st.com>
CC: <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 02/13] dt-bindings: display: st,stm32-ltdc: add
 access-controllers property

Hi Raphael,

Thanks for the patch.

Acked-by: Yannick Fertre <yannick.fertre@...s.st.com>


Le 21/08/2025 à 13:08, Raphael Gallais-Pou a écrit :
> access-controllers is an optional property that allows a peripheral to
> refer to one or more domain access controller(s).
>
> This property is added when the peripheral is under the STM32 firewall
> controller.  It allows an accurate representation of the hardware, where
> the peripheral is connected to a firewall bus.  The firewall can then check
> the peripheral accesses before allowing its device to probe.
>
> Acked-by: Rob Herring (Arm) <robh@...nel.org>
> Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>
> ---
>   Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml | 3 +++
>   1 file changed, 3 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml b/Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml
> index bcedcfef5427f5725a0473c09628e70d172c8f58..e27347acee5dacf56cb3971d4b62c34dfc64d7e2 100644
> --- a/Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml
> +++ b/Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml
> @@ -41,6 +41,9 @@ properties:
>     resets:
>       maxItems: 1
>   
> +  access-controllers:
> +    maxItems: 1
> +
>     port:
>       $ref: /schemas/graph.yaml#/properties/port
>       description: |
>