[PATCH 01/11] dt-bindings: clock: rockchip: Add RV1103B clock and reset unit

[Fabio Estevam]

From: Fabio Estevam <festevam at nabladev.com>

Add device tree bindings for the clock and reset unit for the RV1103B SoC.

Cc: Stephen Boyd <sboyd at kernel.org>
Signed-off-by: Fabio Estevam <festevam at nabladev.com>
---
 .../bindings/clock/rockchip,rv1103b-cru.yaml  | 63 +++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/rockchip,rv1103b-cru.yaml

diff --git a/Documentation/devicetree/bindings/clock/rockchip,rv1103b-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rv1103b-cru.yaml
new file mode 100644
index 000000000000..fa7298955aea
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rv1103b-cru.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rv1103b-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RV1103B Clock and Reset Unit
+
+maintainers:
+  - Fabio Estevam <festevam at nabladev.com>
+  - Heiko Stuebner <heiko at sntech.de>
+
+description: |
+  The RV1103B clock controller generates and supplies clocks to various
+  controllers within the SoC and also implements a reset controller for SoC
+  peripherals.
+  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/rockchip,rv1103b-cru.h header
+  and can be used in device tree sources. Similar macros exist for the reset
+  sources in these files.
+  There are several clocks that are generated outside the SoC. It is expected
+  that they are defined using standard clock bindings with following
+  clock-output-names:
+    - "xin24m"   - crystal input                              - required
+    - "xin32k"   - rtc clock                                  - optional
+
+properties:
+  compatible:
+    enum:
+      - rockchip,rv1103b-cru
+
+  reg:
+    maxItems: 1
+
+  "#clock-cells":
+    const: 1
+
+  "#reset-cells":
+    const: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: xin24m
+
+required:
+  - compatible
+  - reg
+  - "#clock-cells"
+  - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    clock-controller at 20000000 {
+      compatible = "rockchip,rv1103b-cru";
+      reg = <0x20000000 0x81000>;
+      #clock-cells = <1>;
+      #reset-cells = <1>;
+    };
-- 
2.34.1