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dt: bindings: ath10k: add bindings for wifi iommu node

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WCN3990 wifi module can optionally make use of the IOMMU.
Add binding documentation for phandle to the IOMMU and
the stream id of wifi iommu block.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Govind Singh 2018-12-20 14:24:23 +02:00 committed by Kalle Valo
parent 5fac78aac9
commit a3542d0c73
1 changed files with 5 additions and 0 deletions
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5
Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
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@ -71,6 +71,10 @@ Optional properties:
Value type: <phandle>
Definition: reference to the reserved-memory for the msa region
used by the wifi firmware running in Q6.
- iommus:
Usage: optional
Value type: <prop-encoded-array>
Definition: A list of phandle and IOMMU specifier pairs.
Example (to supply the calibration data alone):
@ -168,4 +172,5 @@ wifi@18000000 {
vdd-1.3-rfa-supply = <&vreg_l17a_1p3>;
vdd-3.3-ch0-supply = <&vreg_l25a_3p3>;
memory-region = <&wifi_msa_mem>;
iommus = <&apps_smmu 0x0040 0x1>;
};