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?
> Add binding documentation for phandle to the IOMMU and
> the stream id of wifi iommu block.
>
> Signed-off-by: Govind Singh <govi...@codeaurora.org>
> ---
> .../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
>
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