[v4] Enable display support for STM32MP25

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

Posted by Raphael Gallais-Pou 1 month, 1 week ago

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@kernel.org>
Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.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: |

-- 
2.25.1

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

Posted by Yannick FERTRE 1 month, 1 week ago

Hi Raphael,

Thanks for the patch.

Acked-by: Yannick Fertre <yannick.fertre@foss.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@kernel.org>
> Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.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: |
>