[PATCH v3 1/4] dt-binding: clock: Document rockchip,rk3568-cru bindings

Elaine Zhang
2021-03-01T06:51:34Z

Document the device tree bindings of the rockchip Rk3568 SoC
clock driver in Documentation/devicetree/bindings/clock/rockchip,rk3568-cru.yaml.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
---
.../bindings/clock/rockchip,rk3568-cru.yaml | 60 +++++++++++++++++++
1 file changed, 60 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/rockchip,rk3568-cru.yaml

diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3568-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3568-cru.yaml
new file mode 100644
index 000000000000..b2c26097827f
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3568-cru.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rk3568-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ROCKCHIP rk3568 Family Clock Control Module Binding
+
+maintainers:
+ - Elaine Zhang <zhangqing@rock-chips.com>
+ - Heiko Stuebner <heiko@sntech.de>
+
+description: |
+ The RK3568 clock controller generates the clock and also implements a
+ reset controller for SoC peripherals.
+ (examples: provide SCLK_UART1\PCLK_UART1 and SRST_P_UART1\SRST_S_UART1 for UART module)
+ Each clock is assigned an identifier and client nodes can use this identifier
+ to specify the clock which they consume. All available clocks are defined as
+ preprocessor macros in the dt-bindings/clock/rk3568-cru.h headers and can be
+ used in device tree sources.
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk3568-cru
+ - rockchip,rk3568-pmucru
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ # Clock Control Module node:
+ - |
+ pmucru: clock-controller@fdd00000 {
+ compatible = "rockchip,rk3568-pmucru";
+ reg = <0xfdd00000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+ - |
+ cru: clock-controller@fdd20000 {
+ compatible = "rockchip,rk3568-cru";
+ reg = <0xfdd20000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
--
2.17.1