linux-kernel - [PATCH V4 1/3] dt-bindings: sram: qcom,imem: Add Boot Stat region within IMEM

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Message-ID: <bd3350e3b0b02669cffa4bdaf9a0a1d8ae9072d1.1681742910.git.quic_schowdhu@quicinc.com>
Date:   Mon, 17 Apr 2023 20:38:14 +0530
From:   Souradeep Chowdhury <quic_schowdhu@...cinc.com>
To:     Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, Sibi Sankar <quic_sibis@...cinc.com>,
        Rajendra Nayak <quic_rjendra@...cinc.com>,
        Souradeep Chowdhury <quic_schowdhu@...cinc.com>
Subject: [PATCH V4 1/3] dt-bindings: sram: qcom,imem: Add Boot Stat region within IMEM

All Qualcomm bootloaders log useful timestamp information related
to bootloader stats in the IMEM region. Add the child node within
IMEM for the boot stat region containing register address and
compatible string.

Signed-off-by: Souradeep Chowdhury <quic_schowdhu@...cinc.com>
---
 .../devicetree/bindings/sram/qcom,imem.yaml        | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/Documentation/devicetree/bindings/sram/qcom,imem.yaml b/Documentation/devicetree/bindings/sram/qcom,imem.yaml
index ba694ce..d028bed 100644
--- a/Documentation/devicetree/bindings/sram/qcom,imem.yaml
+++ b/Documentation/devicetree/bindings/sram/qcom,imem.yaml
@@ -49,6 +49,28 @@ patternProperties:
     $ref: /schemas/remoteproc/qcom,pil-info.yaml#
     description: Peripheral image loader relocation region
 
+  "^stats@[0-9a-f]+$":
+    type: object
+    description:
+      Imem region dedicated for storing timestamps related
+      information regarding bootstats.
+
+    additionalProperties: false
+
+    properties:
+      compatible:
+        items:
+          - enum:
+              - qcom,sm8450-bootstats
+          - const: qcom,imem-bootstats
+
+      reg:
+        maxItems: 1
+
+    required:
+      - compatible
+      - reg
+
 required:
   - compatible
   - reg
-- 
2.7.4