Documentation: bindings: clk: Add bindings for i.MX BLK_CTRL

Document the i.MX BLK_CTRL with its devicetree properties.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Tested-by: Daniel Baluta <daniel.baluta@nxp.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/fsl,imx-blk-ctrl.yaml b/Documentation/devicetree/bindings/clock/fsl,imx-blk-ctrl.yaml
new file mode 100644
index 000000000000..036d3d37ffc2
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/fsl,imx-blk-ctrl.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fsl,imx-blk-ctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX BLK_CTRL
+
+description: |
+  i.MX BLK_CTRL is a conglomerate of different GPRs that are
+  dedicated to a specific subsystem. Because it usually contains
+  clocks amongst other things, it needs access to the i.MX clocks
+  API. All the other functionalities it provides can work just fine
+  from the clock subsystem tree.
+
+maintainers:
+  - Abel Vesa <abel.vesa@nxp.com>
+
+properties:
+  reg:
+    maxItems: 1
+
+  compatible:
+    items:
+      - const: fsl,imx8mp-blk-ctrl
+      - const: syscon
+
+  power-domains:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+  '#reset-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - power-domains
+  - '#clock-cells'
+  - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    audio-blk-ctrl: blk-ctrl@30e20000 {
+       compatible = "fsl,imx8mp-blk-ctrl", "syscon";
+       reg = <0x30e20000 0x10000>;
+       power-domains = <&audiomix_pd>;
+
+       #clock-cells = <1>;
+       #reset-cells = <1>;
+    };