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dt-bindings: ath10k: Add wifi-firmware subnode for wifi node

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Add a wifi-firmware subnode for the wifi node.
This wifi-firmware subnode is needed for the
targets which do not support TrustZone.

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1586971906-20985-2-git-send-email-pillair@codeaurora.org
This commit is contained in:
Rakesh Pillai 2020-05-04 12:03:33 +03:00 committed by Kalle Valo
parent d431f8939c
commit 85325c24d5
1 changed files with 14 additions and 0 deletions
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14
Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
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@ -96,6 +96,17 @@ Optional properties:
- qcom,coexist-gpio-pin : gpio pin number information to support coex
which will be used by wifi firmware.
* Subnodes
The ath10k wifi node can contain one optional firmware subnode.
Firmware subnode is needed when the platform does not have TustZone.
The firmware subnode must have:
- iommus:
Usage: required
Value type: <prop-encoded-array>
Definition: A list of phandle and IOMMU specifier pairs.
Example (to supply PCI based wifi block details):
In this example, the node is defined as child node of the PCI controller.
@ -196,4 +207,7 @@ wifi@18000000 {
memory-region = <&wifi_msa_mem>;
iommus = <&apps_smmu 0x0040 0x1>;
qcom,msa-fixed-perm;
wifi-firmware {
iommus = <&apps_iommu 0xc22 0x1>;
};
};