dt-bindings: clock: Add starfive,jh7100-audclk bindings

Add bindings for the audio clocks on the StarFive JH7100 RISC-V SoC.

Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Link: https://lore.kernel.org/r/20220126173953.1016706-5-kernel@esmil.dk
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7100-audclk.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7100-audclk.yaml
new file mode 100644 (file)
index 0000000..8f49a1a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/starfive,jh7100-audclk.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/starfive,jh7100-audclk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7100 Audio Clock Generator
+
+maintainers:
+  - Emil Renner Berthing <kernel@esmil.dk>
+
+properties:
+  compatible:
+    const: starfive,jh7100-audclk
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Audio source clock
+      - description: External 12.288MHz clock
+      - description: Domain 7 AHB bus clock
+
+  clock-names:
+    items:
+      - const: audio_src
+      - const: audio_12288
+      - const: dom7ahb_bus
+
+  '#clock-cells':
+    const: 1
+    description:
+      See <dt-bindings/clock/starfive-jh7100-audio.h> for valid indices.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/starfive-jh7100.h>
+
+    clock-controller@10480000 {
+            compatible = "starfive,jh7100-audclk";
+            reg = <0x10480000 0x10000>;
+            clocks = <&clkgen JH7100_CLK_AUDIO_SRC>,
+                     <&clkgen JH7100_CLK_AUDIO_12288>,
+                     <&clkgen JH7100_CLK_DOM7AHB_BUS>;
+            clock-names = "audio_src", "audio_12288", "dom7ahb_bus";
+            #clock-cells = <1>;
+    };