dt-bindings: Add USB PHY bindings

Add USB PHY bindings used on MSM platforms.

Change-Id: Ifaf30337abc9b48ccad01f9b4d9aedfb877820f4
Signed-off-by: Ronak Vijay Raheja <quic_rraheja@quicinc.com>

bindings/usb/qcom,pmic-eusb2-repeater.yaml

@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/qcom,pmic-eusb2-repeater.yaml##
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. eUSB2 Repeater
+
+maintainers:
+  - Ronak Vijay Raheja <quic_rraheja@quicinc.com>
+
+properties:
+  compatible:
+    const: qcom,pmic-eusb2-repeater
+
+  reg:
+    description: address and length of the register set for the device
+    minItems: 1
+
+  vdd3-supply:
+    description: phandle to the 3V supply for eUSB2 repeater
+
+  vdd18-supply:
+    description: phandle to the 1.8V supply for eUSB2 repeater
+
+  qcom,param-override-seq:
+    description: parameter override sequence with value, reg offset pair
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+required:
+  - compatible
+  - reg
+  - vdd3-supply
+  - vdd18-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    eusb2_repeater@fd00 {
+      compatible = "qcom,pmic-eusb2-repeater";
+      reg = <0xfd00 0xff>;
+      vdd18-supply = <&pm8841_s2_corner>;
+      vdd3-supply = <&pm8941_l6>;
+      qcom,param-override-seq = <0x4 0x57>;
+    };
+...

bindings/usb/qcom,usb-emu-phy.yaml

@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/qcom,usb-emu-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. emulation USB PHY
+
+maintainers:
+  - Ronak Vijay Raheja <quic_rraheja@quicinc.com>
+
+properties:
+  compatible:
+    const: qcom,usb-emu-phy
+
+  reg:
+    description: |
+      Offset and length of the register set in the memory map. Additional
+      offset and length of register set for QSCRATCH wrapper.
+    minItems: 1
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: base
+      - const: qscratch_base
+
+  qcom,emu-init-seq:
+    description: emulation initialization sequence of value,reg pairs
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - qcom,emu-init-seq
+
+additionalProperties: false
+
+examples:
+  - |
+    usb_emu_phy@a720000 {
+      compatible = "qcom,usb-emu-phy";
+      reg = <0x0a720000 0x9500>,
+            <0x0a6f8800 0x100>;
+      reg-names = "base", "qscratch_base";
+
+      qcom,emu-init-seq = <0xfff0 0x4
+                           0xfff3 0x4
+                           0xfff0 0x4
+                           0x100000 0x20
+                           0x0 0x20
+                           0x1a0 0x20
+                           0x100000 0x3c
+                           0x0 0x3c
+                           0x10060 0x3c
+                           0x0 0x4>;
+    };
+...

bindings/usb/qcom,usb-snps-eusb2-phy.yaml

@@ -0,0 +1,112 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/qcom,usb-snps-eusb2-phy.yaml##
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. eUSB2 SNPS USB HSPHY
+
+maintainers:
+  - Ronak Vijay Raheja <quic_rraheja@quicinc.com>
+
+properties:
+  compatible:
+    const: qcom,usb-snps-eusb2-phy
+
+  reg:
+    description: |
+      Address and length of the register set for the device. Required regs are::
+       - eusb2_phy_base:: the base register for the PHY
+       - eud_detect_reg:: VIOCTL_EUD_DETECT register.
+      Optional regs are::
+       - eud_enable_reg:: register address to read eud enable/disable status.
+    minItems: 2
+
+  vdd-supply:
+    description: phandle to the Vdd supply for HSPHY digital circuit operation
+
+  vdda12-supply:
+    description: phandle to the 1.2V supply for HSPHY digital circuit operation
+
+  clocks:
+    minItems: 1
+    items:
+      - description: RPMH_CXO_PAD_CLK clk
+      - description: TCSR_USB2_CLKREF_EN clk
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: ref_clk_src # required
+      - const: ref_clk
+
+  qcom,vdd-voltage-level:
+    description: |
+      This property must be a list of three integer values (no, min, max) where
+      each value represents either a voltage in microvolts or a value
+      corresponding to voltage corner.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+  resets:
+    description: |
+      Reset specifier pair consists of phandle for the reset controller and
+      reset lines used by this controller.
+
+  reset-names:
+    description: |
+      reset signal name strings sorted in the same order as the resets
+      property.
+
+  usb-repeater:
+    description: |
+      phandle to eUSB2 repeater which is used with eUSB2 HSPHY for USB
+      functionality.
+
+  qcom,param-override-seq:
+    description: parameter override sequence with value, reg offset pair
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+  dummy-supply:
+    description: |
+      phandle to eUSB2 repeater for enforcing probe ordering for eUSB2 repeater
+      and eUSB2 PHY driver.
+
+required:
+  - compatible
+  - reg
+  - vdd-supply
+  - vdda12-supply
+  - clocks
+  - clock-names
+  - qcom,vdd-voltage-level
+  - resets
+  - reset-names
+  - usb-repeater
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,rpmh.h>
+    #include <dt-bindings/clock/qcom,gcc-sun.h>
+    #include <dt-bindings/clock/qcom,tcsrcc-sun.h>
+
+    eusb2_phy: hsphy@ff4000 {
+      compatible = "qcom,usb-snps-eusb2-phy";
+      reg = <0x88e3000 0x154>,
+            <0xc278000 0x4>;
+
+      vdd-supply = <&pm_v8_l1>;
+      qcom,vdd-voltage-level = <0 880000 880000>;
+      vdda12-supply = <&pm_v8_l3>;
+
+      clocks = <&rpmhcc RPMH_CXO_PAD_CLK>,
+               <&tcsrcc TCSR_USB2_CLKREF_EN>;
+      clock-names = "ref_clk_src", "ref_clk";
+
+      resets = <&gcc GCC_QUSB2PHY_PRIM_BCR>;
+      reset-names = "phy_reset";
+
+      usb-repeater = <&pm8550b_eusb2_repeater>;
+    };
+...