linux-kernel - [PATCH v4 3/4] dt-bindings: remoteproc: qcom: wcnss: Add qcom,pronto compatible

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Date:   Wed, 21 Sep 2022 10:06:47 +0530
From:   Sireesh Kodali <sireeshkodali1@...il.com>
To:     devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-remoteproc@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, linux-kernel@...r.kernel.org
Cc:     andersson@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        Sireesh Kodali <sireeshkodali1@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
Subject: [PATCH v4 3/4] dt-bindings: remoteproc: qcom: wcnss: Add qcom,pronto compatible

This is not a fallback compatible, it must be present in addition to
"qcom,pronto-v*". It is also not documented in qcom,wcnss-pil.txt.  This
is the reason for documenting it in a separate commit.

This compatible is used in the wcn36xx driver to determine which
register must be accessed. However it isn't immediately clear why the
wcn36xx driver relies on this extra compatible string rather than just
looking for "qcom,pronto-v*".

Signed-off-by: Sireesh Kodali <sireeshkodali1@...il.com>
---
 .../bindings/remoteproc/qcom,wcnss-pil.yaml       | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,wcnss-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,wcnss-pil.yaml
index a99a1e5242f8..31232c59b22b 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,wcnss-pil.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,wcnss-pil.yaml
@@ -15,10 +15,15 @@ description:
 
 properties:
   compatible:
-    enum:
-      - qcom,riva-pil
-      - qcom,pronto-v1-pil
-      - qcom,pronto-v2-pil
+    description:
+      Append "qcom,pronto" if the device is actually pronto, and not riva
+    oneOf:
+      - items:
+          - enum:
+              - qcom,pronto-v1-pil
+              - qcom,pronto-v2-pil
+          - const: qcom,pronto
+      - const: qcom,riva-pil
 
   reg:
     maxItems: 3
@@ -198,7 +203,7 @@ examples:
     #include <dt-bindings/clock/qcom,rpmcc.h>
     #include <dt-bindings/power/qcom-rpmpd.h>
     pronto@...b000 {
-        compatible = "qcom,pronto-v2-pil";
+        compatible = "qcom,pronto-v2-pil", "qcom,pronto";
         reg = <0x0a204000 0x2000>, <0x0a202000 0x1000>, <0x0a21b000 0x3000>;
         reg-names = "ccu", "dxe", "pmu";
 
-- 
2.37.3