@@ -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:
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> --- Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)