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Message-Id: <20221121105210.68596-2-shradha.t@samsung.com>
Date:   Mon, 21 Nov 2022 16:22:05 +0530
From:   Shradha Todi <shradha.t@...sung.com>
To:     bhelgaas@...gle.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, kishon@...com, vkoul@...nel.org,
        lpieralisi@...nel.org, kw@...ux.com, mani@...nel.org,
        arnd@...db.de, gregkh@...uxfoundation.org, alim.akhtar@...sung.com,
        ajaykumar.rs@...sung.com, rcsekar@...sung.com,
        sriranjani.p@...sung.com, bharat.uppal@...sung.com,
        s.prashar@...sung.com, aswani.reddy@...sung.com,
        pankaj.dubey@...sung.com, p.rajanbabu@...sung.com,
        niyas.ahmed@...sung.com, chanho61.park@...sung.com
Cc:     linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
        Shradha Todi <shradha.t@...sung.com>
Subject: [PATCH 1/6] dt-bindings: phy: Add PCIe PHY bindings for FSD

Document the PCIe PHY device tree bindings for Tesla
FSD SoC

Signed-off-by: Shradha Todi <shradha.t@...sung.com>
---
 .../bindings/phy/phy-tesla-pcie.yaml          | 75 +++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/phy-tesla-pcie.yaml

diff --git a/Documentation/devicetree/bindings/phy/phy-tesla-pcie.yaml b/Documentation/devicetree/bindings/phy/phy-tesla-pcie.yaml
new file mode 100644
index 000000000000..8fa9a050af7a
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-tesla-pcie.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/phy-tesla-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Tesla FSD SoC PCIe PHY
+
+maintainers:
+  - Shradha Todi <shradha.t@...sung.com>
+
+properties:
+  "#phy-cells":
+    const: 0
+
+  compatible:
+    enum:
+      - tesla,fsd-pcie-phy
+
+  reg:
+    minItems: 2
+    maxItems: 2
+
+  reg-names:
+    minItems: 2
+    maxItems: 2
+    items:
+      enum: [phy, pcs]
+    description: |
+      phy is the register access to PMA layer
+      pcs is the register access to PCS layer
+
+  phy-mode:
+    description: |
+      Defines the bifurcation mode of the PHY
+
+  tesla,pmureg-phandle:
+    $ref: '/schemas/types.yaml#/definitions/phandle'
+    description: phandle for PMU system controller interface used to
+                 control PMU register bits for PCIe PHY
+
+  tesla,pcie-sysreg:
+    $ref: '/schemas/types.yaml#/definitions/phandle'
+    description: phandle for system control registers, used to
+                 control phy signals at system level
+
+required:
+  - "#phy-cells"
+  - compatible
+  - reg
+  - reg-names
+  - phy-mode
+  - tesla,pmureg-phandle
+  - tesla,pcie-sysreg
+
+additionalProperties: false
+
+examples:
+  - |
+    bus {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      pcie_phy0: pcie-phy@...80000 {
+        compatible = "tesla,fsd-pcie-phy";
+        #phy-cells = <0>;
+        reg = <0x0 0x15080000 0x0 0x2000>, <0x0 0x150A0000 0x0 0x1000>;
+        reg-names = "phy", "pcs";
+        tesla,pmureg-phandle = <&pmu_system_controller>;
+        tesla,pcie-sysreg = <&sysreg_fsys0>;
+        phy-mode = <0>;
+        status = "disabled";
+      };
+    };
+...
-- 
2.17.1

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