From 85325c24d5d2c8fcde35a634742d14d45bf7326e Mon Sep 17 00:00:00 2001 From: Rakesh Pillai Date: Mon, 4 May 2020 12:03:33 +0300 Subject: dt-bindings: ath10k: Add wifi-firmware subnode for wifi node 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 Acked-by: Rob Herring Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1586971906-20985-2-git-send-email-pillair@codeaurora.org --- .../devicetree/bindings/net/wireless/qcom,ath10k.txt | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt index 71bf91f97386..65ee68efd574 100644 --- a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt +++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt @@ -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: + 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>; + }; }; -- cgit v1.2.3