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Message-ID: <20231127-glimpse-demotion-6adae40eee30@spud>
Date:   Mon, 27 Nov 2023 17:40:45 +0000
From:   Conor Dooley <conor@...nel.org>
To:     Ziqi Chen <quic_ziqichen@...cinc.com>
Cc:     quic_asutoshd@...cinc.com, quic_cang@...cinc.com,
        bvanassche@....org, mani@...nel.org, stanley.chu@...iatek.com,
        adrian.hunter@...el.com, beanhuo@...ron.com, avri.altman@....com,
        junwoo80.lee@...sung.com, martin.petersen@...cle.com,
        quic_nguyenb@...cinc.com, quic_nitirawa@...cinc.com,
        linux-scsi@...r.kernel.org, Alim Akhtar <alim.akhtar@...sung.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Wolfram Sang <wsa@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] dt-bindings: ufs: Add msi-parent for UFS MCQ

On Mon, Nov 27, 2023 at 01:36:02PM +0800, Ziqi Chen wrote:
> The Message Signaled Interrupts (MSI) support has been introduced in
> UFSHCI version 4.0 (JESD223E). The MSI is the recommended interrupt
> approach for MCQ. If choose to use MSI, In UFS DT, we need to provide
> msi-parent property that point to the hardware entity which serves as
> the MSI controller for this UFS controller.
> 
> Signed-off-by: Ziqi Chen <quic_ziqichen@...cinc.com>
> 

> V2 -> V3: Wrap commit message to meet Linux coding style.
> V1 -> V2: Rebased on Linux 6.7-rc1 and updated the commit message to
>           incorporate the details about when MCQ/MSI got introduced.

This should be below the --- line FYI. With that fixed,
Acked-by: Conor Dooley <conor.dooley@...rochip.com>

Cheers,
Conor.

> ---
>  Documentation/devicetree/bindings/ufs/ufs-common.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/ufs/ufs-common.yaml b/Documentation/devicetree/bindings/ufs/ufs-common.yaml
> index 985ea8f..31fe7f3 100644
> --- a/Documentation/devicetree/bindings/ufs/ufs-common.yaml
> +++ b/Documentation/devicetree/bindings/ufs/ufs-common.yaml
> @@ -87,6 +87,8 @@ properties:
>      description:
>        Specifies max. load that can be drawn from VCCQ2 supply.
>  
> +  msi-parent: true
> +
>  dependencies:
>    freq-table-hz: [ clocks ]
>    operating-points-v2: [ clocks, clock-names ]
> -- 
> 2.7.4
> 

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