linux-kernel - Re: [PATCH 1/6] dt-bindings: ti, sci: Add property for partial-io-wakeup-sources

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Message-ID: <c4e7ea45-bd81-49c1-a461-e418a32d6122@linaro.org>
Date: Mon, 27 May 2024 21:07:32 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Markus Schneider-Pargmann <msp@...libre.com>, Nishanth Menon <nm@...com>,
 Tero Kristo <kristo@...nel.org>, Santosh Shilimkar <ssantosh@...nel.org>,
 Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Vignesh Raghavendra <vigneshr@...com>
Cc: Vibhore Vardhan <vibhore@...com>, Kevin Hilman <khilman@...libre.com>,
 Dhruva Gole <d-gole@...com>, linux-arm-kernel@...ts.infradead.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/6] dt-bindings: ti, sci: Add property for
 partial-io-wakeup-sources

On 23/05/2024 10:02, Markus Schneider-Pargmann wrote:
> Add a property with an array of phandles to devices that have pins that
> are capable to wakeup the SoC from Partial-IO. In Partial-IO everything
> is powered off including the DDR. Only pins belonging to a couple of
> devices are active and wakeup the system on activity.
> 
> Signed-off-by: Markus Schneider-Pargmann <msp@...libre.com>
> ---
>  Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml b/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
> index 7f06b1080244..c8ed0dd4fee4 100644
> --- a/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
> +++ b/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
> @@ -61,6 +61,12 @@ properties:
>    mboxes:
>      minItems: 2
>  
> +  ti,partial-io-wakeup-sources:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    description: |
> +      List of phandles to devicetree nodes that can wakeup the SoC from the
> +      Partial IO poweroff mode.

We have binding for this - wakeup-source in each device - what's wrong
with it?

Best regards,
Krzysztof