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From:   Shengjiu Wang <shengjiu.wang@nxp.com>
To:     abelvesa@kernel.org, peng.fan@nxp.com, mturquette@baylibre.com,
        sboyd@kernel.org, robh+dt@kernel.org,
        krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org,
        shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de,
        festevam@gmail.com, linux-imx@nxp.com, shengjiu.wang@gmail.com
Cc:     linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v5 1/3] dt-bindings: clock: fsl,imx8-acm: Add audio clock mux support
Date:   Fri, 14 Jul 2023 16:10:57 +0800
Message-Id: <1689322259-13504-2-git-send-email-shengjiu.wang@nxp.com>
In-Reply-To: <1689322259-13504-1-git-send-email-shengjiu.wang@nxp.com>
References: <1689322259-13504-1-git-send-email-shengjiu.wang@nxp.com>
Precedence: bulk

Add the clock dt-binding file for audio clock mux. which
is the IP for i.MX8QM, i.MX8QXP, i.MX8DXL.

The Audio clock mux is binded with all the audio IP and audio clocks
in the subsystem, so need to list the power domain of related clocks
and IPs. Each clock and IP has a power domain, so there are so many
power domains.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
changes in v5:
- none

changes in v4:
- add Reviewed-by tag

changes in v3:
- change compatible string fron nxp to fsl, align with file name.
- add commit message for power domains numbers.
- remove description of power domain

changes in v2:
- update the file name to fsl,imx8-acm.yaml
- remove "binding" in title
- add power domains list
- change the node name in example
- change to lower-case for hex

 .../bindings/clock/fsl,imx8-acm.yaml          | 156 ++++++++++++++++++
 1 file changed, 156 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/fsl,imx8-acm.yaml

diff --git a/Documentation/devicetree/bindings/clock/fsl,imx8-acm.yaml b/Documentation/devicetree/bindings/clock/fsl,imx8-acm.yaml
new file mode 100644
index 000000000000..03d95faa82ad
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/fsl,imx8-acm.yaml
@@ -0,0 +1,156 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fsl,imx8-acm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX8 Audio Clock Mux
+
+maintainers:
+  - Shengjiu Wang <shengjiu.wang@nxp.com>
+
+description: |
+  NXP i.MX8 Audio Clock Mux is dedicated clock muxing IP
+  used to control Audio related clock on the SoC.
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx8qm-acm
+      - fsl,imx8qxp-acm
+      - fsl,imx8dxl-acm
+
+  reg:
+    maxItems: 1
+
+  power-domains:
+    minItems: 13
+    maxItems: 21
+
+  '#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/imx8-clock.h
+      for the full list of i.MX8 ACM clock IDs.
+
+required:
+  - compatible
+  - reg
+  - power-domains
+  - '#clock-cells'
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,imx8qxp-acm
+    then:
+      properties:
+        power-domains:
+          items:
+            - description: power domain of IMX_SC_R_AUDIO_CLK_0
+            - description: power domain of IMX_SC_R_AUDIO_CLK_1
+            - description: power domain of IMX_SC_R_MCLK_OUT_0
+            - description: power domain of IMX_SC_R_MCLK_OUT_1
+            - description: power domain of IMX_SC_R_AUDIO_PLL_0
+            - description: power domain of IMX_SC_R_AUDIO_PLL_1
+            - description: power domain of IMX_SC_R_ASRC_0
+            - description: power domain of IMX_SC_R_ASRC_1
+            - description: power domain of IMX_SC_R_ESAI_0
+            - description: power domain of IMX_SC_R_SAI_0
+            - description: power domain of IMX_SC_R_SAI_1
+            - description: power domain of IMX_SC_R_SAI_2
+            - description: power domain of IMX_SC_R_SAI_3
+            - description: power domain of IMX_SC_R_SAI_4
+            - description: power domain of IMX_SC_R_SAI_5
+            - description: power domain of IMX_SC_R_SPDIF_0
+            - description: power domain of IMX_SC_R_MQS_0
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,imx8qm-acm
+    then:
+      properties:
+        power-domains:
+          items:
+            - description: power domain of IMX_SC_R_AUDIO_CLK_0
+            - description: power domain of IMX_SC_R_AUDIO_CLK_1
+            - description: power domain of IMX_SC_R_MCLK_OUT_0
+            - description: power domain of IMX_SC_R_MCLK_OUT_1
+            - description: power domain of IMX_SC_R_AUDIO_PLL_0
+            - description: power domain of IMX_SC_R_AUDIO_PLL_1
+            - description: power domain of IMX_SC_R_ASRC_0
+            - description: power domain of IMX_SC_R_ASRC_1
+            - description: power domain of IMX_SC_R_ESAI_0
+            - description: power domain of IMX_SC_R_ESAI_1
+            - description: power domain of IMX_SC_R_SAI_0
+            - description: power domain of IMX_SC_R_SAI_1
+            - description: power domain of IMX_SC_R_SAI_2
+            - description: power domain of IMX_SC_R_SAI_3
+            - description: power domain of IMX_SC_R_SAI_4
+            - description: power domain of IMX_SC_R_SAI_5
+            - description: power domain of IMX_SC_R_SAI_6
+            - description: power domain of IMX_SC_R_SAI_7
+            - description: power domain of IMX_SC_R_SPDIF_0
+            - description: power domain of IMX_SC_R_SPDIF_1
+            - description: power domain of IMX_SC_R_MQS_0
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,imx8dxl-acm
+    then:
+      properties:
+        power-domains:
+          items:
+            - description: power domain of IMX_SC_R_AUDIO_CLK_0
+            - description: power domain of IMX_SC_R_AUDIO_CLK_1
+            - description: power domain of IMX_SC_R_MCLK_OUT_0
+            - description: power domain of IMX_SC_R_MCLK_OUT_1
+            - description: power domain of IMX_SC_R_AUDIO_PLL_0
+            - description: power domain of IMX_SC_R_AUDIO_PLL_1
+            - description: power domain of IMX_SC_R_ASRC_0
+            - description: power domain of IMX_SC_R_SAI_0
+            - description: power domain of IMX_SC_R_SAI_1
+            - description: power domain of IMX_SC_R_SAI_2
+            - description: power domain of IMX_SC_R_SAI_3
+            - description: power domain of IMX_SC_R_SPDIF_0
+            - description: power domain of IMX_SC_R_MQS_0
+
+additionalProperties: false
+
+examples:
+  # Clock Control Module node:
+  - |
+    #include <dt-bindings/firmware/imx/rsrc.h>
+
+    clock-controller@59e00000 {
+        compatible = "fsl,imx8qxp-acm";
+        reg = <0x59e00000 0x1d0000>;
+        #clock-cells = <1>;
+        power-domains = <&pd IMX_SC_R_AUDIO_CLK_0>,
+                        <&pd IMX_SC_R_AUDIO_CLK_1>,
+                        <&pd IMX_SC_R_MCLK_OUT_0>,
+                        <&pd IMX_SC_R_MCLK_OUT_1>,
+                        <&pd IMX_SC_R_AUDIO_PLL_0>,
+                        <&pd IMX_SC_R_AUDIO_PLL_1>,
+                        <&pd IMX_SC_R_ASRC_0>,
+                        <&pd IMX_SC_R_ASRC_1>,
+                        <&pd IMX_SC_R_ESAI_0>,
+                        <&pd IMX_SC_R_SAI_0>,
+                        <&pd IMX_SC_R_SAI_1>,
+                        <&pd IMX_SC_R_SAI_2>,
+                        <&pd IMX_SC_R_SAI_3>,
+                        <&pd IMX_SC_R_SAI_4>,
+                        <&pd IMX_SC_R_SAI_5>,
+                        <&pd IMX_SC_R_SPDIF_0>,
+                        <&pd IMX_SC_R_MQS_0>;
+    };
-- 
2.34.1