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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: Sinan Kaya <okaya@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
zero-colors
Sinan Kaya 2016-10-07 01:25:06 -04:00 committed by Vinod Koul
parent b5b809532e
commit ef6661bfdf
1 changed files with 7 additions and 1 deletions
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8
Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt
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@ -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: