linux-kernel - [PATCH 1/8] dt-bindings: phy: qcom,uniphy-usb: Document qcom,uniphy-usb phy

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Date:   Fri, 29 Sep 2023 14:12:02 +0530
From:   Praveenkumar I <quic_ipkumar@...cinc.com>
To:     <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <vkoul@...nel.org>,
        <kishon@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <gregkh@...uxfoundation.org>, <catalin.marinas@....com>,
        <will@...nel.org>, <p.zabel@...gutronix.de>,
        <geert+renesas@...der.be>, <arnd@...db.de>,
        <neil.armstrong@...aro.org>, <nfraprado@...labora.com>,
        <u-kumar1@...com>, <peng.fan@....com>, <quic_wcheng@...cinc.com>,
        <quic_varada@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <linux-phy@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     <quic_kathirav@...cinc.com>, <quic_nsekar@...cinc.com>,
        <quic_srichara@...cinc.com>
Subject: [PATCH 1/8] dt-bindings: phy: qcom,uniphy-usb: Document qcom,uniphy-usb phy

Document the Qualcomm USB3 22ull UNIPHY present in IPQ5332.

Signed-off-by: Praveenkumar I <quic_ipkumar@...cinc.com>
---
 .../bindings/phy/qcom,ipq5332-usb-uniphy.yaml | 83 +++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/qcom,ipq5332-usb-uniphy.yaml

diff --git a/Documentation/devicetree/bindings/phy/qcom,ipq5332-usb-uniphy.yaml b/Documentation/devicetree/bindings/phy/qcom,ipq5332-usb-uniphy.yaml
new file mode 100644
index 000000000000..90434cee9cdd
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom,ipq5332-usb-uniphy.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/qcom,ipq5332-usb-uniphy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm USB Super-Speed UNIPHY
+
+maintainers:
+  - Praveenkumar I <quic_ipkumar@...cinc.com>
+  - Varadarajan Narayanan <quic_varada@...cinc.com>
+
+description:
+  USB Super-Speed UNIPHY found in Qualcomm IPQ5332, IPQ5018 SoCs.
+
+properties:
+  compatible:
+    items:
+      - const: qcom,ipq5332-usb-ssphy
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 3
+
+  clock-names:
+    items:
+      - const: ahb
+      - const: cfg_ahb
+      - const: pipe
+
+  resets:
+    maxItems: 1
+
+  vdd-supply:
+    description:
+      Phandle to 5V regulator supply to PHY digital circuit.
+
+  qcom,phy-usb-mux-sel:
+    description: PHY Mux Selection for USB
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: phandle of TCSR syscon
+          - description: offset of PHY Mux selection register
+
+  "#clock-cells":
+    const: 0
+
+  clock-output-names:
+    maxItems: 1
+
+  "#phy-cells":
+    const: 0
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,ipq5332-gcc.h>
+    usb-phy@...000 {
+        compatible = "qcom,ipq5332-usb-uniphy";
+        reg = <0x4b0000 0x800>;
+
+        clocks = <&gcc GCC_PCIE3X1_PHY_AHB_CLK>,
+                 <&gcc GCC_USB0_PHY_CFG_AHB_CLK>,
+                 <&gcc GCC_USB0_PIPE_CLK>;
+        clock-names = "ahb",
+                      "cfg_ahb",
+                      "pipe";
+
+        resets =  <&gcc GCC_USB0_PHY_BCR>;
+
+        #clock-cells = <0>;
+        clock-output-names = "usb0_pipe_clk_src";
+
+        #phy-cells = <0>;
+
+        qcom,phy-usb-mux-sel = <&tcsr 0x10540>;
+
+        vdd-supply = <&regulator_fixed_5p0>;
+    };
-- 
2.34.1