diff mbox series

[v4] dt-bindings: ufs: Add msi-parent for UFS MCQ

Message ID 1701144469-1018-1-git-send-email-quic_ziqichen@quicinc.com
State New
Headers show
Series [v4] dt-bindings: ufs: Add msi-parent for UFS MCQ | expand

Commit Message

Ziqi Chen Nov. 28, 2023, 4:07 a.m. UTC 
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.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Ziqi Chen <quic_ziqichen@quicinc.com>
---
V3 -> V4: Corrected version change format.
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.
---
 Documentation/devicetree/bindings/ufs/ufs-common.yaml | 2 ++
 1 file changed, 2 insertions(+)

Comments

Martin K. Petersen Dec. 14, 2023, 4:29 a.m. UTC | #1 
On Tue, 28 Nov 2023 12:07:47 +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.
> 
> 
> [...]

Applied to 6.8/scsi-queue, thanks!

[1/1] dt-bindings: ufs: Add msi-parent for UFS MCQ
      https://git.kernel.org/mkp/scsi/c/af85d689ae08
diff mbox series

Patch

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 ]