Thread (21 messages) 21 messages, 4 authors, 2023-12-15

Re: [PATCH v7 14/14] dt-bindings: net: ar803x: add qca8084 PHY propetry

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From: Krzysztof Kozlowski <hidden>
Date: 2023-12-15 07:39:45
Also in: linux-devicetree, linux-doc, lkml

On 14/12/2023 10:48, Luo Jie wrote:
The following properties are added for qca8084 PHY.

1. add the compatible string "ethernet-phy-id004d.d180" since
   the PHY device is not accessible during MDIO bus register.
2. add property "qcom,phy-addr-fixup" for customizing MDIO address.
Why? Commit msg must explain why, not "what".
3. add property "qcom,phy-work-mode" for specifying qca8084 PHY
   work mode.
Why?
4. add the initial clocks and resets.
Why only initial, not final?
quoted hunk ↗ jump to hunk
Signed-off-by: Luo Jie <redacted>
---
 .../devicetree/bindings/net/qca,ar803x.yaml   | 158 +++++++++++++++++-
 1 file changed, 155 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/qca,ar803x.yaml b/Documentation/devicetree/bindings/net/qca,ar803x.yaml
index 3acd09f0da86..febff039a44f 100644
--- a/Documentation/devicetree/bindings/net/qca,ar803x.yaml
+++ b/Documentation/devicetree/bindings/net/qca,ar803x.yaml
@@ -14,9 +14,6 @@ maintainers:
 description: |
   Bindings for Qualcomm Atheros AR803x PHYs
 
-allOf:
-  - $ref: ethernet-phy.yaml#
-
 properties:
   qca,clk-out-frequency:
     description: Clock output frequency in Hertz.
@@ -85,6 +82,161 @@ properties:
     $ref: /schemas/regulator/regulator.yaml
     unevaluatedProperties: false
 
+  qcom,phy-addr-fixup:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
Why no constraints?
+    description:
+      MDIO address for 4 PHY devices and 3 PCS devices

Why do you need to change MMIO address?
quoted hunk ↗ jump to hunk
+
+  qcom,phy-work-mode:
+    description: PHY device work mode.
Your description copies property name. Tell us something we don't
know... like the meaning of the vcalues.
quoted hunk ↗ jump to hunk
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1, 2, 3]
+
+  clocks:
+    items:
+      - description: APB bridge clock
+      - description: AHB clock
+      - description: Security control clock
+      - description: TLMM clock
+      - description: TLMM AHB clock
+      - description: CNOC AHB clock
+      - description: MDIO AHB clock
+      - description: MDIO master AHB clock
+      - description: PCS0 system clock
+      - description: PCS1 system clock
+      - description: EPHY0 system clock
+      - description: EPHY1 system clock
+      - description: EPHY2 system clock
+      - description: EPHY3 system clock
+    description: PHY initial common clock configs
+
+  clock-names:
+    items:
+      - const: apb_bridge
+      - const: ahb
+      - const: sec_ctrl_ahb
+      - const: tlmm
+      - const: tlmm_ahb
+      - const: cnoc_ahb
+      - const: mdio_ahb
+      - const: mdio_master_ahb
+      - const: srds0_sys
+      - const: srds1_sys
+      - const: gephy0_sys
+      - const: gephy1_sys
+      - const: gephy2_sys
+      - const: gephy3_sys
+
+  resets:
+    items:
+      - description: PCS0 system reset
+      - description: PCS1 system reset
+      - description: EPHY0 system reset
+      - description: EPHY1 system reset
+      - description: EPHY2 system reset
+      - description: EPHY3 system reset
+      - description: EPHY0 software reset
+      - description: EPHY1 software reset
+      - description: EPHY2 software reset
+      - description: EPHY3 software reset
+      - description: Ethernet DSP reset
+    description: PHY initial common reset configs
+
+  reset-names:
+    items:
+      - const: srds0_sys
+      - const: srds1_sys
+      - const: gephy0_sys
+      - const: gephy1_sys
+      - const: gephy2_sys
+      - const: gephy3_sys
+      - const: gephy0_soft
+      - const: gephy1_soft
+      - const: gephy2_soft
+      - const: gephy3_soft
+      - const: gephy_dsp
+
+allOf:
+  - $ref: ethernet-phy.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - ethernet-phy-id004d.d180
+    then:
+      properties:
+        clocks:
+          items:
+            - description: APB bridge clock
+            - description: AHB clock
+            - description: Security control clock
+            - description: TLMM clock
+            - description: TLMM AHB clock
+            - description: CNOC AHB clock
+            - description: MDIO AHB clock
+            - description: MDIO master AHB clock
+            - description: PCS0 system clock
+            - description: PCS1 system clock
+            - description: EPHY0 system clock
+            - description: EPHY1 system clock
+            - description: EPHY2 system clock
+            - description: EPHY3 system clock
+        clock-names:
+          items:
+            - const: apb_bridge
+            - const: ahb
+            - const: sec_ctrl_ahb
+            - const: tlmm
+            - const: tlmm_ahb
+            - const: cnoc_ahb
+            - const: mdio_ahb
+            - const: mdio_master_ahb
+            - const: srds0_sys
+            - const: srds1_sys
+            - const: gephy0_sys
+            - const: gephy1_sys
+            - const: gephy2_sys
+            - const: gephy3_sys
?!? Why do you duplicate properties?
quoted hunk ↗ jump to hunk
+        resets:
+          items:
+            - description: PCS0 system reset
+            - description: PCS1 system reset
+            - description: EPHY0 system reset
+            - description: EPHY1 system reset
+            - description: EPHY2 system reset
+            - description: EPHY3 system reset
+            - description: EPHY0 software reset
+            - description: EPHY1 software reset
+            - description: EPHY2 software reset
+            - description: EPHY3 software reset
+            - description: Ethernet DSP reset
+        reset-names:
+          items:
+            - const: srds0_sys
+            - const: srds1_sys
+            - const: gephy0_sys
+            - const: gephy1_sys
+            - const: gephy2_sys
+            - const: gephy3_sys
+            - const: gephy0_soft
+            - const: gephy1_soft
+            - const: gephy2_soft
+            - const: gephy3_soft
+            - const: gephy_dsp
+      required:
+        - qcom,phy-addr-fixup
+        - qcom,phy-work-mode
+        - clocks
+        - clock-names
+        - resets
+        - reset-names
+    else:
+      properties:
+        qcom,phy-addr-fixup: false
+        qcom,phy-work-mode: false
And what about clcoks and resets for other variants? Your patch now
defined them for all variants without any explanation in commit msg.
quoted hunk ↗ jump to hunk
+
 unevaluatedProperties: false
 
 examples:
Best regards,
Krzysztof
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