From 8456c54408a21cddc5c5a3b35d2e77ddd58d20bc Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Mon, 4 May 2020 12:58:56 -0500 Subject: dt-bindings: net: add IPA iommus property The IPA accesses "IMEM" and main system memory through an SMMU, so its DT node requires an iommus property to define range of stream IDs it uses. Signed-off-by: Alex Elder Signed-off-by: David S. Miller --- Documentation/devicetree/bindings/net/qcom,ipa.yaml | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/net/qcom,ipa.yaml b/Documentation/devicetree/bindings/net/qcom,ipa.yaml index 140f15245654..7b749fc04c32 100644 --- a/Documentation/devicetree/bindings/net/qcom,ipa.yaml +++ b/Documentation/devicetree/bindings/net/qcom,ipa.yaml @@ -20,7 +20,10 @@ description: The GSI is an integral part of the IPA, but it is logically isolated and has a distinct interrupt and a separately-defined address space. - See also soc/qcom/qcom,smp2p.txt and interconnect/interconnect.txt. + See also soc/qcom/qcom,smp2p.txt and interconnect/interconnect.txt. See + iommu/iommu.txt and iommu/arm,smmu.yaml for more information about SMMU + bindings. + - | -------- --------- @@ -54,6 +57,9 @@ properties: - const: ipa-shared - const: gsi + iommus: + maxItems: 1 + clocks: maxItems: 1 @@ -126,6 +132,7 @@ properties: required: - compatible + - iommus - reg - clocks - interrupts @@ -164,6 +171,7 @@ examples: modem-init; modem-remoteproc = <&mss_pil>; + iommus = <&apps_smmu 0x720 0x3>; reg = <0 0x1e40000 0 0x7000>, <0 0x1e47000 0 0x2000>, <0 0x1e04000 0 0x2c000>; -- cgit v1.2.3