linux-kernel - [PATCH v2 6/8] dt-bindings: iommu: qcom,iommu: Document QSMMU v2 compatibles

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Date:   Fri, 11 Nov 2022 15:59:17 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     agross@...nel.org
Cc:     andersson@...nel.org, konrad.dybcio@...aro.org, joro@...tes.org,
        will@...nel.org, robin.murphy@....com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, robdclark@...il.com,
        linux-arm-msm@...r.kernel.org, iommu@...ts.linux.dev,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        marijn.suijten@...ainline.org, kernel@...labora.com,
        luca@...tu.xyz, a39.skl@...il.com, phone-devel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: [PATCH v2 6/8] dt-bindings: iommu: qcom,iommu: Document QSMMU v2 compatibles

Add compatible strings for "qcom,msm-iommu-v2" for the inner node,
"qcom,msm-iommu-v2-ns" and "qcom,msm-iommu-v2-sec" for the context
bank nodes to support Qualcomm's secure fw "SMMU v2" implementation.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 Documentation/devicetree/bindings/iommu/qcom,iommu.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/iommu/qcom,iommu.txt b/Documentation/devicetree/bindings/iommu/qcom,iommu.txt
index 7d4e0a18b08e..b762772f80e7 100644
--- a/Documentation/devicetree/bindings/iommu/qcom,iommu.txt
+++ b/Documentation/devicetree/bindings/iommu/qcom,iommu.txt
@@ -11,7 +11,10 @@ to non-secure vs secure interrupt line.
 
                         "qcom,msm8916-iommu"
 
-                     Followed by "qcom,msm-iommu-v1".
+                     Followed by one of:
+
+                        - "qcom,msm-iommu-v1"
+                        - "qcom,msm-iommu-v2"
 
 - clock-names      : Should be a pair of "iface" (required for IOMMUs
                      register group access) and "bus" (required for
@@ -36,6 +39,8 @@ to non-secure vs secure interrupt line.
   - compatible     : Should be one of:
         - "qcom,msm-iommu-v1-ns"  : non-secure context bank
         - "qcom,msm-iommu-v1-sec" : secure context bank
+        - "qcom,msm-iommu-v2-ns"  : non-secure QSMMUv2/QSMMU500 context bank
+        - "qcom,msm-iommu-v2-sec" : secure QSMMUv2/QSMMU500 context bank
   - reg            : Base address and size of context bank within the iommu
   - interrupts     : The context fault irq.
 
-- 
2.38.1