linux-kernel - [PATCH] dt-bindings: ufs: qcom: Add msi-parent for UFS MCQ

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Date:   Wed,  1 Nov 2023 12:01:09 +0800
From:   Ziqi Chen <quic_ziqichen@...cinc.com>
To:     quic_asutoshd@...cinc.com, quic_cang@...cinc.com,
        bvanassche@....org, mani@...nel.org, beanhuo@...ron.com,
        avri.altman@....com, junwoo80.lee@...sung.com,
        martin.petersen@...cle.com, quic_ziqichen@...cinc.com,
        quic_nguyenb@...cinc.com, quic_nitirawa@...cinc.com,
        quic_rampraka@...cinc.com
Cc:     linux-scsi@...r.kernel.org, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.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>,
        linux-arm-msm@...r.kernel.org (open list:ARM/QUALCOMM SUPPORT),
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] dt-bindings: ufs: qcom: Add msi-parent for UFS MCQ

The Message Signaled Interrupt (MSI) has been used
by UFS driver since the MCQ be enabled. Hence in UFS
DT node, we need to give the msi-parent property that
point to the hardware entity that serves as the MSI
controller for this UFS controller.

Signed-off-by: Ziqi Chen <quic_ziqichen@...cinc.com>
---
 Documentation/devicetree/bindings/ufs/qcom,ufs.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
index 462ead5..d2f505a 100644
--- a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
+++ b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
@@ -103,6 +103,8 @@ properties:
     description:
       GPIO connected to the RESET pin of the UFS memory device.
 
+  msi-parent: true
+
 required:
   - compatible
   - reg
@@ -318,5 +320,6 @@ examples:
                             <0 0>,
                             <0 0>;
             qcom,ice = <&ice>;
+            msi-parent = <&gic_its 0x60>;
         };
     };
-- 
2.7.4