path: root/Documentation/devicetree/bindings
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authorGovind Singh <govinds@codeaurora.org>2018-12-20 14:24:23 +0200
committerKalle Valo <kvalo@codeaurora.org>2018-12-20 19:07:39 +0200
commita3542d0c73cec6a45bde512ea2b43666c05a8c54 (patch)
tree586ca7f2560a272c5b71fc783dda0534ff38ceb6 /Documentation/devicetree/bindings
parentdt: bindings: ath10k: add missing dt properties for WCN3990 wifi node (diff)
dt: bindings: ath10k: add bindings for wifi iommu node
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>
Diffstat (limited to 'Documentation/devicetree/bindings')
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
index 51fcf93d743b..09ae59470f64 100644
--- a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
+++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
@@ -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>;