linux-kernel - Re: [PATCH v5 02/10] dt-bindings: mailbox: Add mboxes property for CMDQ secure driver

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Date: Wed, 3 Apr 2024 16:46:33 +0100
From: Conor Dooley <conor@...nel.org>
To: Shawn Sung <shawn.sung@...iatek.com>
Cc: CK Hu <ck.hu@...iatek.com>, Jassi Brar <jassisinghbrar@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	"Jason-JH . Lin" <jason-jh.lin@...iatek.com>,
	Houlong Wei <houlong.wei@...iatek.com>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v5 02/10] dt-bindings: mailbox: Add mboxes property for
 CMDQ secure driver

On Wed, Apr 03, 2024 at 06:25:54PM +0800, Shawn Sung wrote:
> From: "Jason-JH.Lin" <jason-jh.lin@...iatek.com>
> 
> Add mboxes to define a GCE loopping thread as a secure irq handler.
> This property is only required if CMDQ secure driver is supported.
> 
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>
> Signed-off-by: Hsiao Chien Sung <shawn.sung@...iatek.com>
> ---
>  .../bindings/mailbox/mediatek,gce-mailbox.yaml         | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml
> index cef9d76013985..c0d80cc770899 100644
> --- a/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml
> +++ b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml
> @@ -49,6 +49,16 @@ properties:
>      items:
>        - const: gce
>  
> +  mediatek,gce-events:
> +    description:
> +      The event id which is mapping to the specific hardware event signal
> +      to gce. The event id is defined in the gce header
> +      include/dt-bindings/gce/<chip>-gce.h of each chips.

Missing any info here about when this should be used, hint - you have it
in the commit message.

> +    $ref: /schemas/types.yaml#/definitions/uint32-arrayi

Why is the ID used by the CMDQ service not fixed for each SoC?

Cheers,
Conor

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