linux-kernel - [PATCH v3 1/3] dt-bindings: clock: Add YAML schemas for the QCOM MSS clock bindings

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Message-Id: <1580357923-19783-2-git-send-email-tdas@codeaurora.org>
Date:   Thu, 30 Jan 2020 09:48:41 +0530
From:   Taniya Das <tdas@...eaurora.org>
To:     Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette   <mturquette@...libre.com>
Cc:     David Brown <david.brown@...aro.org>,
        Rajendra Nayak <rnayak@...eaurora.org>,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        Andy Gross <agross@...nel.org>, devicetree@...r.kernel.org,
        robh@...nel.org, robh+dt@...nel.org,
        Taniya Das <tdas@...eaurora.org>
Subject: [PATCH v3 1/3] dt-bindings: clock: Add YAML schemas for the QCOM MSS clock bindings

The Modem Subsystem clock provider have a bunch of generic properties
that are needed in a device tree. Add a YAML schemas for those.

Signed-off-by: Taniya Das <tdas@...eaurora.org>
---
 .../devicetree/bindings/clock/qcom,mss.yaml        | 58 ++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/qcom,mss.yaml

diff --git a/Documentation/devicetree/bindings/clock/qcom,mss.yaml b/Documentation/devicetree/bindings/clock/qcom,mss.yaml
new file mode 100644
index 0000000..ebb04e1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,mss.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bindings/clock/qcom,mss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Modem Clock Controller Binding
+
+maintainers:
+  - Taniya Das <tdas@...eaurora.org>
+
+description: |
+  Qualcomm modem clock control module which supports the clocks.
+
+properties:
+  compatible:
+    enum:
+       - qcom,sc7180-mss
+
+  clocks:
+    minItems: 1
+    maxItems: 3
+    items:
+      - description: gcc_mss_mfab_axi clock from GCC
+      - description: gcc_mss_nav_axi clock from GCC
+      - description: gcc_mss_cfg_ahb clock from GCC
+
+  clock-names:
+    items:
+      - const: gcc_mss_mfab_axis_clk
+      - const: gcc_mss_nav_axi_clk
+      - const: cfg_clk
+
+  '#clock-cells':
+    const: 1
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  # Example of MSS with clock nodes properties for SC7180:
+  - |
+    clock-controller@...8000 {
+      compatible = "qcom,sc7180-mss";
+      reg = <0x041a8000 0x8000>;
+      clocks = <&gcc 126>, <&gcc 127>, <&gcc 125>;
+      clock-names = "gcc_mss_mfab_axis_clk", "gcc_mss_nav_axi_clk", "cfg_clk";
+      #clock-cells = <1>;
+    };
+...
--
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