linux-kernel - [PATCH] dt-bindings: remoteproc: qcom,adsp: Allow cx-supply on qcom,sdm845-slpi-pas

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Message-ID: <20251229152658.284199-2-krzysztof.kozlowski@oss.qualcomm.com>
Date: Mon, 29 Dec 2025 16:26:59 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@....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>, linux-arm-msm@...r.kernel.org,
        linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
Subject: [PATCH] dt-bindings: remoteproc: qcom,adsp: Allow cx-supply on qcom,sdm845-slpi-pas

One SDM845 board uses cx-supply, which is not allowed by the bindings,
as reported by dtbs_check:

  sdm845-samsung-starqltechn.dtb: remoteproc@...0000 (qcom,sdm845-slpi-pas): Unevaluated properties are not allowed ('cx-supply' was unexpected)

The SDM845 SLPI binding already allows lcx and lmx domains, thus the
cx-supply seems like a fake name for something else, e.g. some
enable pin.  The qcom_q6v5_pas.c driver parses cx-supply, so it is an
established ABI, therefore document it for this device only.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
---
 Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
index 137f95028313..16a245fe2738 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
@@ -32,6 +32,8 @@ properties:
   reg:
     maxItems: 1
 
+  cx-supply: true
+
   px-supply:
     description: Phandle to the PX regulator
 
@@ -159,6 +161,9 @@ allOf:
           items:
             - const: lcx
             - const: lmx
+    else:
+      properties:
+        cx-supply: false
 
   - if:
       properties:
-- 
2.51.0