linux-kernel - [PATCH v3 15/15] dt-bindings: cpufreq: qcom-hw: Add bindings for 8998

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Date:   Tue, 12 Jan 2021 19:20:52 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>
To:     linux-arm-msm@...r.kernel.org
Cc:     konrad.dybcio@...ainline.org, marijn.suijten@...ainline.org,
        martin.botka@...ainline.org, phone-devel@...r.kernel.org,
        linux-kernel@...r.kernel.org, robh+dt@...nel.org,
        rjw@...ysocki.net, viresh.kumar@...aro.org, nks@...wful.org,
        agross@...nel.org, bjorn.andersson@...aro.org,
        daniel.lezcano@...aro.org, manivannan.sadhasivam@...aro.org,
        devicetree@...r.kernel.org, linux-pm@...r.kernel.org,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>
Subject: [PATCH v3 15/15] dt-bindings: cpufreq: qcom-hw: Add bindings for 8998

The OSM programming addition has been done under the
qcom,cpufreq-hw-8998 compatible name: specify the requirement
of two additional register spaces for this functionality.
This implementation, with the same compatible, has been
tested on MSM8998 and SDM630.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>
---
 .../bindings/cpufreq/cpufreq-qcom-hw.yaml     | 66 +++++++++++++++----
 1 file changed, 52 insertions(+), 14 deletions(-)

diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
index bc81b6203e27..17fd6a6cefb0 100644
--- a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
+++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
@@ -18,6 +18,10 @@ description: |
 properties:
   compatible:
     oneOf:
+      - description: Non-secure v1 of CPUFREQ HW
+        items:
+          - const: qcom,cpufreq-hw-8998
+
       - description: v1 of CPUFREQ HW
         items:
           - const: qcom,cpufreq-hw
@@ -28,21 +32,9 @@ properties:
               - qcom,sm8250-cpufreq-epss
           - const: qcom,cpufreq-epss
 
-  reg:
-    minItems: 2
-    maxItems: 3
-    items:
-      - description: Frequency domain 0 register region
-      - description: Frequency domain 1 register region
-      - description: Frequency domain 2 register region
+  reg: {}
 
-  reg-names:
-    minItems: 2
-    maxItems: 3
-    items:
-      - const: freq-domain0
-      - const: freq-domain1
-      - const: freq-domain2
+  reg-names: {}
 
   clocks:
     items:
@@ -57,6 +49,52 @@ properties:
   '#freq-domain-cells':
     const: 1
 
+if:
+  properties:
+    compatible:
+      contains:
+        const: qcom,cpufreq-hw-8998
+then:
+  properties:
+    reg:
+      minItems: 2
+      maxItems: 6
+      items:
+        - description: Frequency domain 0 register region
+        - description: Operating State Manager domain 0 register region
+        - description: Frequency domain 1 register region
+        - description: Operating State Manager domain 1 register region
+        - description: PLL ACD domain 0 register region (if ACD programming required)
+        - description: PLL ACD domain 1 register region (if ACD programming required)
+
+    reg-names:
+      minItems: 2
+      maxItems: 6
+      items:
+        - const: "osm-domain0"
+        - const: "freq-domain0"
+        - const: "osm-domain1"
+        - const: "freq-domain1"
+        - const: "osm-acd0"
+        - const: "osm-acd1"
+
+else:
+  properties:
+    reg:
+      minItems: 2
+      maxItems: 3
+      items:
+        - description: Frequency domain 0 register region
+        - description: Frequency domain 1 register region
+        - description: Frequency domain 2 register region
+    reg-names:
+      minItems: 2
+      maxItems: 3
+      items:
+        - const: "freq-domain0"
+        - const: "freq-domain1"
+        - const: "freq-domain2"
+
 required:
   - compatible
   - reg
-- 
2.29.2