linux-kernel - [PATCH v6 3/3] dt-bindings: opp: opp-v2-kryo-cpu: enlarge opp-supported-hw maximum

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Date:   Wed,  8 Feb 2023 16:39:13 +0100
From:   Christian Marangi <ansuelsmth@...il.com>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Ilia Lin <ilia.lin@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Nishanth Menon <nm@...com>, Stephen Boyd <sboyd@...nel.org>,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Christian Marangi <ansuelsmth@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v6 3/3] dt-bindings: opp: opp-v2-kryo-cpu: enlarge opp-supported-hw maximum

Enlarge opp-supported-hw maximum value. In recent SoC we started
matching more bit and we currently match mask of 112. The old maximum of
7 was good for old SoC that didn't had complex id, but now this is
limiting and we need to enlarge it to support more variants.

Document all the various mask that can be used and limit them to only
reasonable values instead of using a generic maximum limit.

Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
changes v6:
- No change
Changes v5:
- No change
Changes v4:
- Add review tag from Krzysztof
Changes v3:
- Fix dt_binding_check for missing 0x5 and 0x6 value
Changes v2:
- Document additional bit format

 .../devicetree/bindings/opp/opp-v2-kryo-cpu.yaml | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml b/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml
index b4947b326773..bbbad31ae4ca 100644
--- a/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml
+++ b/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml
@@ -50,12 +50,22 @@ patternProperties:
       opp-supported-hw:
         description: |
           A single 32 bit bitmap value, representing compatible HW.
-          Bitmap:
+          Bitmap for MSM8996 format:
           0:  MSM8996, speedbin 0
           1:  MSM8996, speedbin 1
           2:  MSM8996, speedbin 2
-          3-31:  unused
-        maximum: 0x7
+          3:  MSM8996, speedbin 3
+          4-31:  unused
+
+          Bitmap for MSM8996SG format (speedbin shifted of 4 left):
+          0-3:  unused
+          4:  MSM8996SG, speedbin 0
+          5:  MSM8996SG, speedbin 1
+          6:  MSM8996SG, speedbin 2
+          7-31:  unused
+        enum: [0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7,
+               0x9, 0xd, 0xe, 0xf,
+               0x10, 0x20, 0x30, 0x70]
 
       clock-latency-ns: true
 
-- 
2.38.1