From b240562170c34ad647284623f0cb39deae4e9d3b Mon Sep 17 00:00:00 2001
From: Mohammed Aakib Patel <quic_maiyubpa@quicinc.com>
Date: Tue, 13 May 2025 11:59:01 +0530
Subject: [PATCH] dt-bindings: add "qcom,no-nvmem-cell-support" for reboot
 reason

Add "qcom,no-nvmem-cell-support" property for reboot-reason.

Change-Id: I060546389c88be59bf3810e75b60c674b6e9d2a3
Signed-off-by: Mohammed Aakib Patel <quic_maiyubpa@quicinc.com>
---
 bindings/power/reset/qcom,reboot-reason.yaml | 37 ++++++++++++++------
 1 file changed, 26 insertions(+), 11 deletions(-)

diff --git a/bindings/power/reset/qcom,reboot-reason.yaml b/bindings/power/reset/qcom,reboot-reason.yaml
index 1f871355..588cf763 100644
--- a/bindings/power/reset/qcom,reboot-reason.yaml
+++ b/bindings/power/reset/qcom,reboot-reason.yaml
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/power/reset/qcom-reboot-reason.yaml#"
+$id: "http://devicetree.org/schemas/power/reset/qcom,reboot-reason.yaml#"
 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
 
 title: Qualcomm Technologies, Inc. Reboot Reason
@@ -15,26 +15,35 @@ description: |
   restarting into a ramdump collection mode (CrashDump), or restarting
   into "emergency download mode".
 
+allOf:
+  - $ref: /schemas/nvmem/nvmem-consumer.yaml#
+
 properties:
   compatible:
     items:
       - const: qcom,reboot-mode
 
-  allOf:
-    - $ref: /schemas/nvmem/nvmem-consumer.yaml#/properties
-    - items:
-      nvmem-cell-names:
-        items:
-          - const: restart_reason
+  nvmem-cells:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: Phandle to the nvmem cell providing the reboot reason.
+
+  nvmem-cell-names:
+    items:
+      - const: restart_reason
+
+  qcom,no-nvmem-cell-support:
+    type: boolean
+    description: "bool property for device not having nvmem cell support."
+
 
 required:
   - compatible
-  - nvmem-cells-names
 
-dependencies:
-  allOf:
-    - $ref: /schemas/nvmem/nvmem-consumer.yaml#/dependencies
+oneOf:
+  - required: [nvmem-cell-names]
+  - required: [qcom,no-nvmem-cell-support]
 
+additionalProperties: false
 
 examples:
   - |
@@ -43,3 +52,9 @@ examples:
       nvmem-cells = <&restart_reason>;
       nvmem-cell-names = "restart_reason";
     };
+
+  - |
+    reboot-reason {
+      compatible = "qcom,reboot-reason";
+      qcom,no-nvmem-cell-support;
+    };
\ No newline at end of file