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| author | Sinan Kaya <okaya@codeaurora.org> | 2016-10-07 01:25:06 -0400 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-10-19 19:02:58 +0530 |
| commit | ef6661bfdf1b34f86c946fcff127cb67d6d6cfb7 (patch) | |
| tree | 7962c07a7d6dbaaa469ea5e68bc361ea90dcb652 /Documentation/devicetree/bindings/dma | |
| parent | b5b809532e7b070374d98c90f8f423c63f3655f5 (diff) | |
| download | linux-ef6661bfdf1b34f86c946fcff127cb67d6d6cfb7.tar.gz linux-ef6661bfdf1b34f86c946fcff127cb67d6d6cfb7.tar.xz | |
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>
Diffstat (limited to 'Documentation/devicetree/bindings/dma')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt b/Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt index fd5618bd8fbc..2c5e4b8f1d52 100644 --- a/Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt +++ b/Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt @@ -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: |