Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ef6661bf authored by Sinan Kaya's avatar Sinan Kaya Committed by Vinod Koul
Browse files

Documentation: DT: qcom_hidma: update binding for MSI 



Adding a new binding for qcom,hidma-1.1 to distinguish HW supporting
MSI interrupts from the older revision.

Signed-off-by: default avatarSinan Kaya <okaya@codeaurora.org>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent b5b80953

Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt

+7 −1
Original line number Diff line number Diff line
@@ -47,12 +47,18 @@ When the OS is not in control of the management interface (i.e. it's a guest), 
the channel nodes appear on their own, not under a management node.



Required properties:

- compatible: must contain "qcom,hidma-1.0"

- compatible: must contain "qcom,hidma-1.0" for initial HW or "qcom,hidma-1.1"

for MSI capable HW.

- reg: Addresses for the transfer and event channel

- interrupts: Should contain the event interrupt

- desc-count: Number of asynchronous requests this channel can handle

- iommus: required a iommu node



Optional properties for MSI:

- msi-parent : See the generic MSI binding described in

 devicetree/bindings/interrupt-controller/msi.txt for a description of the

 msi-parent property.



Example:



Hypervisor OS configuration: