linux-kernel - [PATCH v3 3/3] dt-bindings: clock: lan966x: Add LAN966X Clock Controller

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Date:   Thu, 9 Sep 2021 13:09:47 +0530
From:   Kavyasree Kotagiri <kavyasree.kotagiri@...rochip.com>
To:     <robh+dt@...nel.org>, <mturquette@...libre.com>, <sboyd@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-clk@...r.kernel.org>, <UNGLinuxDriver@...rochip.com>,
        <Eugen.Hristev@...rochip.com>, <Kavyasree.Kotagiri@...rochip.com>,
        <Manohar.Puri@...rochip.com>
Subject: [PATCH v3 3/3] dt-bindings: clock: lan966x: Add LAN966X Clock Controller

This adds the DT bindings documentation for lan966x SoC
generic clock controller.

Signed-off-by: Kavyasree Kotagiri <kavyasree.kotagiri@...rochip.com>
---
v2 -> v3:
- Fixed dt_binding_check errors.

v1 -> v2:
- Updated example provided for clk controller DT node.

 .../bindings/clock/microchip,lan966x-gck.yaml | 64 +++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/microchip,lan966x-gck.yaml

diff --git a/Documentation/devicetree/bindings/clock/microchip,lan966x-gck.yaml b/Documentation/devicetree/bindings/clock/microchip,lan966x-gck.yaml
new file mode 100644
index 000000000000..d353d42c3dc8
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/microchip,lan966x-gck.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/microchip,lan966x-gck.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip LAN966X Generic Clock Controller
+
+maintainers:
+  - Kavyasree Kotagiri <kavyasree.kotagiri@...rochip.com>
+
+description: |
+  The LAN966X Generic clock controller contains 3 PLLs - cpu_clk,
+  ddr_clk and sys_clk. This clock controller generates and supplies
+  clock to various peripherals within the SoC.
+
+properties:
+  compatible:
+    const: microchip,lan966x-gck
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 3
+
+  '#clock-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    cpu_clk: cpu_clk {
+        compatible = "fixed-clock";
+        #clock-cells = <0>;
+        clock-frequency = <600000000>;
+    };
+
+    ddr_clk: ddr_clk {
+        compatible = "fixed-clock";
+        #clock-cells = <0>;
+        clock-frequency = <300000000>;
+    };
+
+    sys_clk: sys_clk {
+        compatible = "fixed-clock";
+        #clock-cells = <0>;
+        clock-frequency = <162500000>;
+    };
+
+    clks: clock-controller@...c00a8 {
+        compatible = "microchip,lan966x-gck";
+        #clock-cells = <1>;
+        clocks = <&cpu_clk>, <&ddr_clk>, <&sys_clk>;
+        reg = <0xe00c00a8 0x38>;
+    };
+...
-- 
2.17.1