| Message ID | 1700629624-23571-1-git-send-email-quic_ziqichen@quicinc.com |
|---|---|
| State | Accepted |
| Commit | af85d689ae08860e4f9648f05e09f1de868091f4 |
| Headers | show |
| Series | [v2] dt-bindings: ufs: Add msi-parent for UFS MCQ | expand |
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 ]
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@quicinc.com> Changes to v1: - Rebased on Linux 6.7-rc1. - Updated the commit message to incorporate the details about when MCQ/MSI got introduced. --- Documentation/devicetree/bindings/ufs/ufs-common.yaml | 2 ++ 1 file changed, 2 insertions(+)