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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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