From patchwork Thu Jun  1 05:33:55 2023
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From: Nikita Shubin <nikita.shubin@maquefel.me>
To: Alexander Sverdlin <alexander.sverdlin@gmail.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Linus Walleij <linus.walleij@linaro.org>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Nikita Shubin <nikita.shubin@maquefel.me>
Cc: Michael Peters <mpeters@embeddedTS.com>,
        Kris Bahnsen <kris@embeddedTS.com>, linux-clk@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v1 04/43] dt-bindings: clock: Add Cirrus EP93xx
Date: Thu,  1 Jun 2023 08:33:55 +0300
Message-Id: <20230601053546.9574-5-nikita.shubin@maquefel.me>
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This adds device tree bindings for the Cirrus Logic EP93xx
clock block used in these SoCs.

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
---

Notes:
    v0 -> v1:
    
    - it's now a clock controller

 .../bindings/clock/cirrus,ep9301.yaml         | 64 +++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/cirrus,ep9301.yaml

diff --git a/Documentation/devicetree/bindings/clock/cirrus,ep9301.yaml b/Documentation/devicetree/bindings/clock/cirrus,ep9301.yaml
new file mode 100644
index 000000000000..4f9e0d483698
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/cirrus,ep9301.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/cirrus,ep9301.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic ep93xx SoC's clock controller
+
+maintainers:
+  - Nikita Shubin <nikita.shubin@maquefel.me>
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+
+description: |
+  Cirrus Logic EP93XX SoC clocks driver bindings. The clock
+  controller node must be defined as a child node of the ep93xx
+  system controller node.
+
+  See also:
+  - dt-bindings/clock/cirrus,ep93xx-clock.h
+
+properties:
+  compatible:
+    oneOf:
+      - const: cirrus,ep9301-clk
+      - items:
+          - enum:
+              - cirrus,ep9302-clk
+              - cirrus,ep9307-clk
+              - cirrus,ep9312-clk
+              - cirrus,ep9315-clk
+          - const: cirrus,ep9301-clk
+
+  "#clock-cells":
+    const: 1
+
+  clocks:
+    description: List of clock specifiers which are external input
+      clocks to the given clock controller.
+    items:
+      - description: reference clock
+
+required:
+  - compatible
+  - "#clock-cells"
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    clocks {
+      xtali: oscillator {
+        compatible = "fixed-clock";
+        #clock-cells = <0>;
+        clock-frequency = <14745600>;
+      };
+    };
+
+    clock-controller {
+      #clock-cells = <1>;
+      compatible = "cirrus,ep9301-clk";
+      clocks = <&xtali>;
+    };
+...