[01/38] dt-bindings: clock: add rk3562 cru bindings

Commit Message

Kever Yang Dec. 20, 2024, 10:37 a.m. UTC

Document the device tree bindings of the rockchip rk3562 SoC
clock and reset unit.

Signed-off-by: Kever Yang <[e-mail]>
---

 .../bindings/clock/rockchip,rk3562-cru.yaml   | 62 +++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/rockchip,rk3562-cru.yaml

Patch

diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3562-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3562-cru.yaml
new file mode 100644
index 000000000000..aa8dedf2bfce
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3562-cru.yaml
@@ -0,0 +1,62 @@ 
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rk3562-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip rk3562 Clock and Reset Control Module
+
+maintainers:
+  - Elaine Zhang <[e-mail]>
+  - Heiko Stuebner <[e-mail]>
+
+description:
+  The RK3562 clock controller generates the clock and also implements a reset
+  controller for SoC peripherals. For example it provides SCLK_UART2 and
+  PCLK_UART2, as well as SRST_P_UART2 and SRST_S_UART2 for the second UART
+  module.
+
+properties:
+  compatible:
+    const: rockchip,rk3562-cru
+
+  reg:
+    maxItems: 1
+
+  "#clock-cells":
+    const: 1
+
+  "#reset-cells":
+    const: 1
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: xin24m
+      - const: xin32k
+
+  rockchip,grf:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to the syscon managing the "general register files" (GRF),
+      if missing pll rates are not changeable, due to the missing pll
+      lock status.
+
+required:
+  - compatible
+  - reg
+  - "#clock-cells"
+  - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    clock-controller@ff100000 {
+      compatible = "rockchip,rk3562-cru";
+      reg = <0xff100000 0x40000>;
+      #clock-cells = <1>;
+      #reset-cells = <1>;
+    };