linux-kernel - [PATCH v4 1/2] dt-bindings: phy: Add Sophgo CV1800 USB phy

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Message-ID: <20250611081804.1196397-2-inochiama@gmail.com>
Date: Wed, 11 Jun 2025 16:18:02 +0800
From: Inochi Amaoto <inochiama@...il.com>
To: Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...il.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexandre Ghiti <alex@...ti.fr>
Cc: linux-phy@...ts.infradead.org,
	devicetree@...r.kernel.org,
	sophgo@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	Yixun Lan <dlan@...too.org>,
	Longbin Li <looong.bin@...il.com>
Subject: [PATCH v4 1/2] dt-bindings: phy: Add Sophgo CV1800 USB phy

The USB phy of Sophgo CV18XX series SoC needs to sense a pin called
"VBUS_DET" to get the right operation mode. If this pin is not
connected, it only supports setting the mode manually.

Add USB phy bindings for Sophgo CV18XX/SG200X series SoC.

Signed-off-by: Inochi Amaoto <inochiama@...il.com>
---
 .../bindings/phy/sophgo,cv1800b-usb2-phy.yaml | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/sophgo,cv1800b-usb2-phy.yaml

diff --git a/Documentation/devicetree/bindings/phy/sophgo,cv1800b-usb2-phy.yaml b/Documentation/devicetree/bindings/phy/sophgo,cv1800b-usb2-phy.yaml
new file mode 100644
index 000000000000..2ff8f85d0282
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/sophgo,cv1800b-usb2-phy.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/sophgo,cv1800b-usb2-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo CV18XX/SG200X USB 2.0 PHY
+
+maintainers:
+  - Inochi Amaoto <inochiama@...il.com>
+
+properties:
+  compatible:
+    const: sophgo,cv1800b-usb2-phy
+
+  reg:
+    maxItems: 1
+
+  "#phy-cells":
+    const: 0
+
+  clocks:
+    items:
+      - description: PHY app clock
+      - description: PHY stb clock
+      - description: PHY lpm clock
+
+  clock-names:
+    items:
+      - const: app
+      - const: stb
+      - const: lpm
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - "#phy-cells"
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    phy@48 {
+      compatible = "sophgo,cv1800b-usb2-phy";
+      reg = <0x48 0x4>;
+      #phy-cells = <0>;
+      clocks = <&clk 93>, <&clk 94>, <&clk 95>;
+      clock-names = "app", "stb", "lpm";
+      resets = <&rst 58>;
+    };
-- 
2.49.0