linux-kernel - [PATCH 1/6] dt-bindings: phy: qcom,uniphy-pcie: Document PCIe uniphy

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Message-ID: <20231003120846.28626-2-quic_nsekar@quicinc.com>
Date:   Tue, 3 Oct 2023 17:38:41 +0530
From:   Nitheesh Sekar <quic_nsekar@...cinc.com>
To:     <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <lpieralisi@...nel.org>,
        <kw@...ux.com>, <robh@...nel.org>, <bhelgaas@...gle.com>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <vkoul@...nel.org>, <kishon@...nel.org>, <mani@...nel.org>,
        <p.zabel@...gutronix.de>, <quic_nsekar@...cinc.com>,
        <quic_srichara@...cinc.com>, <quic_varada@...cinc.com>,
        <quic_ipkumar@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <linux-pci@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-phy@...ts.infradead.org>
Subject: [PATCH 1/6] dt-bindings: phy: qcom,uniphy-pcie: Document PCIe uniphy

Document the Qualcomm UNIPHY PCIe 28LP present in IPQ5018.

Signed-off-by: Nitheesh Sekar <quic_nsekar@...cinc.com>
---
 .../bindings/phy/qcom,uniphy-pcie-28lp.yaml   | 77 +++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/qcom,uniphy-pcie-28lp.yaml

diff --git a/Documentation/devicetree/bindings/phy/qcom,uniphy-pcie-28lp.yaml b/Documentation/devicetree/bindings/phy/qcom,uniphy-pcie-28lp.yaml
new file mode 100644
index 000000000000..6b2574f9532e
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom,uniphy-pcie-28lp.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/qcom,uniphy-pcie-28lp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm UNIPHY PCIe 28LP PHY driver
+
+maintainers:
+  - Nitheesh Sekar <quic_nsekar@...cinc.com>
+  - Sricharan Ramabadhran <quic_srichara@...cinc.com>
+
+properties:
+  compatible:
+    enum:
+      - qcom,ipq5018-uniphy-pcie-gen2x1
+      - qcom,ipq5018-uniphy-pcie-gen2x2
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: pipe_clk
+
+  resets:
+    maxItems: 2
+
+  reset-names:
+    items:
+      - const: phy
+      - const: phy_phy
+
+  "#phy-cells":
+    const: 0
+
+  "#clock-cells":
+    const: 0
+
+  clock-output-names:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - resets
+  - reset-names
+  - clocks
+  - clock-names
+  - "#phy-cells"
+  - "#clock-cells"
+  - clock-output-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,gcc-ipq5018.h>
+    #include <dt-bindings/reset/qcom,gcc-ipq5018.h>
+
+    phy@...00 {
+        compatible = "qcom,ipq5018-uniphy-pcie-gen2x2";
+        reg = <0x86000 0x800>;
+        #phy-cells = <0>;
+        #clock-cells = <0>;
+        clocks = <&gcc GCC_PCIE0_PIPE_CLK>;
+        clock-names = "pipe_clk";
+        clock-output-names = "pcie0_pipe_clk";
+        assigned-clocks = <&gcc GCC_PCIE1_PIPE_CLK>;
+        assigned-clock-rates = <125000000>;
+        resets = <&gcc GCC_PCIE0_PHY_BCR>,
+                 <&gcc GCC_PCIE0PHY_PHY_BCR>;
+        reset-names = "phy", "phy_phy";
+    };
-- 
2.17.1