On 2018-09-25 04:23, Rob Herring wrote:
On Fri, Sep 21, 2018 at 02:39:06PM +0530, Govind Singh wrote:
WCN3990 wifi module can optionally make use of the IOMMU.
Can the other compatibles use IOMMU too?
No, only wcn3990 can optionally use IOMMU.
Add binding documentation for phandle to the IOMMU and
the stream id of wifi iommu block.
Signed-off-by: Govind Singh <govinds@xxxxxxxxxxxxxx>
---
.../devicetree/bindings/net/wireless/qcom,ath10k.txt | 5
+++++
1 file changed, 5 insertions(+)
diff --git
a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
index 22dea7d83ee8..07e58008c665 100644
--- a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
+++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
@@ -59,6 +59,10 @@ Optional properties:
- <supply-name>-supply: handle to the regulator device tree node
optional "supply-name" are "vdd-0.8-cx-mx",
"vdd-1.8-xo", "vdd-1.3-rfa" and "vdd-3.3-ch0".
+- iommus:
+ Usage: optional
+ Value type: <prop-encoded-array>
+ Definition: A list of phandle and IOMMU specifier pairs.
Example (to supply the calibration data alone):
@@ -157,4 +161,5 @@ wifi@18000000 {
vdd-1.8-xo-supply = <&vreg_l7a_1p8>;
vdd-1.3-rfa-supply = <&vreg_l17a_1p3>;
vdd-3.3-ch0-supply = <&vreg_l25a_3p3>;
+ iommus = <&apps_smmu 0x0040 0x1>;
};
--
2.17.0
BR,
Govind
