linux-kernel - [PATCH v4 01/10] dt-bindings: phy: add exynos2200 eusb2 phy support

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Message-ID: <20250412202620.738150-2-ivo.ivanov.ivanov1@gmail.com>
Date: Sat, 12 Apr 2025 23:26:11 +0300
From: Ivaylo Ivanov <ivo.ivanov.ivanov1@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
	Vinod Koul <vkoul@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>
Cc: linux-samsung-soc@...r.kernel.org,
	linux-phy@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org
Subject: [PATCH v4 01/10] dt-bindings: phy: add exynos2200 eusb2 phy support

Document the exynos2200 eUSB2 compatible. Unlike the currently documented
Qualcomm SoCs, the driver doesn't make use of reset lines for reset
control and uses more clocks.

Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@...il.com>
---
 .../bindings/phy/samsung,snps-eusb2-phy.yaml  | 79 +++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/samsung,snps-eusb2-phy.yaml

diff --git a/Documentation/devicetree/bindings/phy/samsung,snps-eusb2-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,snps-eusb2-phy.yaml
new file mode 100644
index 000000000..09d3fdd4a
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/samsung,snps-eusb2-phy.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/samsung,snps-eusb2-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung SNPS eUSB2 phy controller
+
+maintainers:
+  - Ivaylo Ivanov <ivo.ivanov.ivanov1@...il.com>
+
+description:
+  eUSB2 controller supports LS/FS/HS usb connectivity on Exynos2200.
+
+properties:
+  compatible:
+    enum:
+      - samsung,exynos2200-snps-eusb2-phy
+
+  reg:
+    maxItems: 1
+
+  "#phy-cells":
+    const: 0
+
+  clocks:
+    items:
+      - description: Reference clock
+      - description: Bus (APB) clock
+      - description: Control clock
+
+  clock-names:
+    items:
+      - const: ref
+      - const: bus
+      - const: ctrl
+
+  resets:
+    maxItems: 1
+
+  phys:
+    maxItems: 1
+    description:
+      Phandle to eUSB2 to USB 2.0 repeater
+
+  vdd-supply:
+    description:
+      Phandle to 0.88V regulator supply to PHY digital circuit.
+
+  vdda12-supply:
+    description:
+      Phandle to 1.2V regulator supply to PHY refclk pll block.
+
+required:
+  - compatible
+  - reg
+  - "#phy-cells"
+  - clocks
+  - clock-names
+  - vdd-supply
+  - vdda12-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    usb_hsphy: phy@...b0000 {
+        compatible = "samsung,exynos2200-snps-eusb2-phy";
+        reg = <0x10ab0000 0x10000>;
+        #phy-cells = <0>;
+
+        clocks = <&cmu_hsi0 7>,
+            <&cmu_hsi0 5>,
+            <&cmu_hsi0 8>;
+        clock-names = "ref", "bus", "ctrl";
+
+        vdd-supply = <&vreg_0p88>;
+        vdda12-supply = <&vreg_1p2>;
+    };
-- 
2.43.0