[PATCH v3 3/3] dt-bindings: clock: add loongson2 clock

From: Yinbo Zhu
Date: Thu Oct 20 2022 - 02:36:47 EST


Add the loongson2 clock binding with DT schema format using
json-schema.

Signed-off-by: Yinbo Zhu <zhuyinbo@xxxxxxxxxxx>
---
Change in v3:
1. Drop redundant (last) binding from the title.
2. Drop "- |" between ref_100m node and clk node.

.../bindings/clock/loongson,ls2k-clk.yaml | 63 +++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 64 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml

diff --git a/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml b/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml
new file mode 100644
index 000000000000..6cc6e0755735
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/loongson,ls2k-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Loongson2 SoC Clock Control Module
+
+maintainers:
+ - Yinbo Zhu <zhuyinbo@xxxxxxxxxxx>
+
+description: |
+ Loongson2 SoC clock control module is an integrated clock controller, which
+ generates and supplies to all modules.
+
+properties:
+ compatible:
+ enum:
+ - loongson,ls2k-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: 100m ref
+
+ clock-names:
+ items:
+ - const: ref_100m
+
+ '#clock-cells':
+ const: 1
+ description:
+ The clock consumer should specify the desired clock by having the clock
+ ID in its "clocks" phandle cell. See include/dt-bindings/clock/loongson,ls2k-clk.h
+ for the full list of loongson2 SoC clock IDs.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ ref_100m: clock-ref-100m {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <100000000>;
+ clock-output-names = "ref_100m";
+ };
+
+ clk: clock-controller@1fe00480 {
+ compatible = "loongson,ls2k-clk";
+ reg = <0x1fe00480 0x58>;
+ #clock-cells = <1>;
+ clocks = <&ref_100m>;
+ clock-names = "ref_100m";
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index f01d60cd5c3b..f61a431ad8ca 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11911,6 +11911,7 @@ LOONGSON2 SOC SERIES CLOCK DRIVER
M: Yinbo Zhu <zhuyinbo@xxxxxxxxxxx>
L: linux-clk@xxxxxxxxxxxxxxx
S: Maintained
+F: Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml
F: drivers/clk/clk-loongson2.c
F: include/dt-bindings/clock/loongson,ls2k-clk.h

--
2.31.1