[PATCH v2] dt-bindings: remoteproc: qcom,shikra-pas: Allow bam-dmux subnode

[Vishnu Santhosh]

The BAM-DMUX node lives as a direct child of the modem PAS remoteproc
node, but qcom,shikra-pas.yaml has unevaluatedProperties: false and
does not list bam-dmux, so any DT adding this subnode fails schema
validation.

Add an optional bam-dmux property referencing qcom,bam-dmux.yaml,
mirroring qcom,msm8916-mss-pil.yaml.

Co-developed-by: Deepak Kumar Singh <deepak.singh@xxxxxxxxxxxxxxxx>
Signed-off-by: Deepak Kumar Singh <deepak.singh@xxxxxxxxxxxxxxxx>
Signed-off-by: Vishnu Santhosh <vishnu.santhosh@xxxxxxxxxxxxxxxx>
---
Changes in v2:
- Restrict bam-dmux to the qcom,shikra-mpss-pas compatible.
- Link to v1: https://lore.kernel.org/r/20260727-shikra-pas-bam-dmux-binding-v1-1-c0159c7c3ed4@xxxxxxxxxxxxxxxx
---
 .../devicetree/bindings/remoteproc/qcom,shikra-pas.yaml   | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,shikra-pas.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,shikra-pas.yaml
index 253b14eb2b598f0ca91854c8ff4d0b785090e621..eeb87aa5fae7ad9022fc800075c2f9e906b16ae6 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,shikra-pas.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,shikra-pas.yaml
@@ -44,6 +44,11 @@ properties:
       - description: Firmware name of the Hexagon core
       - description: Firmware name of the Hexagon Devicetree
 
+  bam-dmux:
+    $ref: /schemas/net/qcom,bam-dmux.yaml#
+    description:
+      Qualcomm BAM Data Multiplexer (provides network interface to the modem)
+
   glink-edge:
     $ref: /schemas/remoteproc/qcom,glink-edge.yaml#
     description:
@@ -117,6 +122,16 @@ allOf:
         power-domains: false
         power-domain-names: false
 
+  - if:
+      properties:
+        compatible:
+          enum:
+            - qcom,shikra-cdsp-pas
+            - qcom,shikra-lpaicp-pas
+    then:
+      properties:
+        bam-dmux: false
+
 unevaluatedProperties: false
 
 examples:

---
base-commit: f5098b6bae761e346ebcd9da7f95622c04733cff
change-id: 20260727-shikra-pas-bam-dmux-binding-28a6bf97857c

Best regards,
-- 
Vishnu Santhosh <vishnu.santhosh@xxxxxxxxxxxxxxxx>