linux-kernel - [PATCH v3 2/3] dt-bindings: arm: Add qcom specific hvc transport for SCMI

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Message-ID: <20230811175719.28378-3-quic_nkela@quicinc.com>
Date:   Fri, 11 Aug 2023 10:57:18 -0700
From:   Nikunj Kela <quic_nkela@...cinc.com>
To:     <sudeep.holla@....com>
CC:     <cristian.marussi@....com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>,
        Nikunj Kela <quic_nkela@...cinc.com>
Subject: [PATCH v3 2/3] dt-bindings: arm: Add qcom specific hvc transport for SCMI

Introduce compatible "qcom,scmi-hvc-shmem" for SCMI
transport channel for Qualcomm virtual platforms.
The compatible mandates a shared memory channel.

Signed-off-by: Nikunj Kela <quic_nkela@...cinc.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 .../devicetree/bindings/firmware/arm,scmi.yaml       | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
index 8d54ea768d38..4090240f45b1 100644
--- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
+++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
@@ -45,6 +45,9 @@ properties:
       - description: SCMI compliant firmware with OP-TEE transport
         items:
           - const: linaro,scmi-optee
+      - description: SCMI compliant firmware with Qualcomm hvc/shmem transport
+        items:
+          - const: qcom,scmi-hvc-shmem
 
   interrupts:
     description:
@@ -320,6 +323,15 @@ allOf:
       required:
         - linaro,optee-channel-id
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: qcom,scmi-hvc-shmem
+    then:
+      required:
+        - shmem
+
 examples:
   - |
     firmware {
-- 
2.17.1