linux-kernel - [PATCH v5 01/10] dt-bindings: phy: add exynos2200 eusb2 phy support

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Message-ID: <20250504144527.1723980-2-ivo.ivanov.ivanov1@gmail.com>
Date: Sun,  4 May 2025 17:45:18 +0300
From: Ivaylo Ivanov <ivo.ivanov.ivanov1@...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>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Sylwester Nawrocki <s.nawrocki@...sung.com>
Cc: linux-phy@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v5 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>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 .../phy/samsung,exynos2200-eusb2-phy.yaml     | 80 +++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/samsung,exynos2200-eusb2-phy.yaml

diff --git a/Documentation/devicetree/bindings/phy/samsung,exynos2200-eusb2-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,exynos2200-eusb2-phy.yaml
new file mode 100644
index 000000000..5e7e1bc2e
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/samsung,exynos2200-eusb2-phy.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/samsung,exynos2200-eusb2-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos2200 eUSB2 phy controller
+
+maintainers:
+  - Ivaylo Ivanov <ivo.ivanov.ivanov1@...il.com>
+
+description:
+  Samsung Exynos2200 eUSB2 phy, based on Synopsys eUSB2 IP block, supports
+  LS/FS/HS usb connectivity.
+
+properties:
+  compatible:
+    enum:
+      - samsung,exynos2200-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-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