Thread (10 messages) 10 messages, 2 authors, 2025-11-05

Re: [PATCH v4 1/8] dt-bindings: net: qcom: document the ethqos device for SCMI-based systems

From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2025-11-05 08:33:30
Also in: imx, linux-amlogic, linux-arm-msm, linux-devicetree, linux-mips, linux-renesas-soc, linux-riscv, linux-rockchip, linux-sunxi, lkml

On Tue, Nov 04, 2025 at 02:08:52PM +0100, Bartosz Golaszewski wrote:
quoted hunk ↗ jump to hunk
diff --git a/Documentation/devicetree/bindings/net/qcom,ethqos-scmi.yaml b/Documentation/devicetree/bindings/net/qcom,ethqos-scmi.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..ff70d785d326f39a8fe5698759c56ab2cb7f7eef
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/qcom,ethqos-scmi.yaml
@@ -0,0 +1,97 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/qcom,ethqos-scmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Ethernet ETHQOS device (firmware managed)
+
+maintainers:
+  - Bjorn Andersson <andersson@kernel.org>
+  - Konrad Dybcio <konradybcio@kernel.org>
+  - Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
+
+description:
+  dwmmac based Qualcomm ethernet devices which support Gigabit
+  ethernet (version v2.3.0 and onwards) with clocks, interconnects, etc.
+  managed by firmware
+
+allOf:
+  - $ref: snps,dwmac.yaml#
+
+properties:
+  compatible:
+    const: qcom,sa8255p-ethqos
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: stmmaceth
+      - const: rgmii
+
+  interrupts:
+    items:
+      - description: Combined signal for various interrupt events
+      - description: The interrupt that occurs when HW safety error triggered
+
+  interrupt-names:
+    items:
+      - const: macirq
+      - const: sfty
+
+  power-domains:
+    minItems: 3
You should have here both constraints - min and maxItems. Current code
works fine, but usually we want it to be explicit.

I found two more nits which I did not notice earlier, so when fixing
above please also:

1. Please name the file following compatible, so:
qcom,sa8255p-ethqos.yaml
(unless this was already discussed...)
+        snps,tso;
+        snps,pbl = <32>;
+        rx-fifo-depth = <16384>;
+        tx-fifo-depth = <16384>;
+
+        phy-handle = <&ethernet_phy>;
+        phy-mode = "2500base-x";
+
+        snps,mtl-rx-config = <&mtl_rx_setup1>;
+        snps,mtl-tx-config = <&mtl_tx_setup1>;
+
+        power-domains = <&scmi8_pd 0>, <&scmi8_pd 1>, <&scmi8_dvfs 0>;
+        power-domain-names = "core", "mdio","serdes";
2. Missing space after ,


Best regards,
Krzysztof
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