Adds device tree binding documentation for clocks in the
MT7621 SOC.
Reviewed-by: Rob Herring
Signed-off-by: Sergio Paracuellos
---
.../bindings/clock/mediatek,mt7621-sysc.yaml | 68 +++
1 file changed, 68 insertions(+)
create mode 100644
Documentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml
b/Documentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml
new file mode 100644
index ..915f84efd763
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt7621-sysc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MT7621 Clock Device Tree Bindings
+
+maintainers:
+ - Sergio Paracuellos
+
+description: |
+ The MT7621 has a PLL controller from where the cpu clock is provided
+ as well as derived clocks for the bus and the peripherals. It also
+ can gate SoC device clocks.
+
+ Each clock is assigned an identifier and client nodes use this identifier
+ to specify the clock which they consume.
+
+ All these identifiers could be found in:
+ [1]: .
+
+ The clocks are provided inside a system controller node.
+
+properties:
+ compatible:
+items:
+ - const: mediatek,mt7621-sysc
+ - const: syscon
+
+ reg:
+maxItems: 1
+
+ "#clock-cells":
+description:
+ The first cell indicates the clock number, see [1] for available
+ clocks.
+const: 1
+
+ ralink,memctl:
+$ref: /schemas/types.yaml#/definitions/phandle
+description:
+ phandle of syscon used to control memory registers
+
+ clock-output-names:
+maxItems: 8
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - ralink,memctl
+
+additionalProperties: false
+
+examples:
+ - |
+#include
+
+sysc: sysc@0 {
+ compatible = "mediatek,mt7621-sysc", "syscon";
+ reg = <0x0 0x100>;
+ #clock-cells = <1>;
+ ralink,memctl = <>;
+ clock-output-names = "xtal", "cpu", "bus",
+ "50m", "125m", "150m",
+ "250m", "270m";
+};
--
2.25.1
