linux-kernel - [PATCH v3 01/12] dt-bindings: remoteproc: qcom,pas: Add iommus property

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Message-Id: <20250921-kvm_rproc_pas-v3-1-458f09647920@oss.qualcomm.com>
Date: Sun, 21 Sep 2025 01:10:59 +0530
From: Mukesh Ojha <mukesh.ojha@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Mukesh Ojha <mukesh.ojha@....qualcomm.com>
Subject: [PATCH v3 01/12] dt-bindings: remoteproc: qcom,pas: Add iommus
 property

Most Qualcomm platforms feature Gunyah hypervisor which handles IOMMU
configuration for remote processor and when it is not present, the
operating system must perform these configurations instead and for that
firmware stream should be presented to the operating system. Hence, add
iommus property as optional property for PAS supported devices.

Signed-off-by: Mukesh Ojha <mukesh.ojha@....qualcomm.com>
---
 Documentation/devicetree/bindings/remoteproc/qcom,pas-common.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,pas-common.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,pas-common.yaml
index 63a82e7a8bf8..8bd7d718be57 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,pas-common.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,pas-common.yaml
@@ -44,6 +44,9 @@ properties:
       - const: stop-ack
       - const: shutdown-ack
 
+  iommus:
+    minItems: 1
+
   power-domains:
     minItems: 1
     maxItems: 3

-- 
2.50.1