[PATCH v7 3/5] dt-bindings: clock: imx8mp: Add audiomix block control

[Marek Vasut <marex@denx.de>]

Unlike the other block control IPs in i.MX8M, the audiomix is mostly a
series of clock gates and muxes. Add DT bindings for this IP.

Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Tested-by: Adam Ford <aford173@gmail.com> #imx8mp-beacon-kit
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Marek Vasut <marex@denx.de>
---
Cc: Abel Vesa <abelvesa@kernel.org>
Cc: Alexander Stein <alexander.stein@ew.tq-group.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Jacky Bai <ping.bai@nxp.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Luca Ceresoli <luca.ceresoli@bootlin.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Marco Felsch <m.felsch@pengutronix.de>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-clk@vger.kernel.org
---
V2: No change
V3: - Add missed RB from Rob from V1
    - Rename audio_ahb to plain ahb
V4: - Rebase on next 20230223
V5: Add TB from Adam and Alexander
V6: - Add RB from Fabio
    - Drop power-domain-names
    - Move reg below compatible property
V7: - Move #clock-cells below reg property
    - Sort required: list
    - Add RB from Marco, Peng and sort the tags
---
 .../bindings/clock/imx8mp-audiomix.yaml       | 79 +++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml

diff --git a/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml b/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml
new file mode 100644
index 0000000000000..ff9600474df20
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/imx8mp-audiomix.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX8MP AudioMIX Block Control Binding
+
+maintainers:
+  - Marek Vasut <marex@denx.de>
+
+description: |
+  NXP i.MX8M Plus AudioMIX is dedicated clock muxing and gating IP
+  used to control Audio related clock on the SoC.
+
+properties:
+  compatible:
+    const: fsl,imx8mp-audio-blk-ctrl
+
+  reg:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  clocks:
+    minItems: 7
+    maxItems: 7
+
+  clock-names:
+    items:
+      - const: ahb
+      - const: sai1
+      - const: sai2
+      - const: sai3
+      - const: sai5
+      - const: sai6
+      - const: sai7
+
+  '#clock-cells':
+    const: 1
+    description:
+      The clock consumer should specify the desired clock by having the clock
+      ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8mp-clock.h
+      for the full list of i.MX8MP IMX8MP_CLK_AUDIOMIX_ clock IDs.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - power-domains
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  # Clock Control Module node:
+  - |
+    #include <dt-bindings/clock/imx8mp-clock.h>
+
+    clock-controller@30e20000 {
+        compatible = "fsl,imx8mp-audio-blk-ctrl";
+        reg = <0x30e20000 0x10000>;
+        #clock-cells = <1>;
+        clocks = <&clk IMX8MP_CLK_AUDIO_ROOT>,
+                 <&clk IMX8MP_CLK_SAI1>,
+                 <&clk IMX8MP_CLK_SAI2>,
+                 <&clk IMX8MP_CLK_SAI3>,
+                 <&clk IMX8MP_CLK_SAI5>,
+                 <&clk IMX8MP_CLK_SAI6>,
+                 <&clk IMX8MP_CLK_SAI7>;
+        clock-names = "ahb",
+                      "sai1", "sai2", "sai3",
+                      "sai5", "sai6", "sai7";
+        power-domains = <&pgc_audio>;
+    };
+
+...
-- 
2.39.2