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@xxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Tested-by: Adam Ford <aford173@xxxxxxxxx> #imx8mp-beacon-kit
Tested-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
Signed-off-by: Marek Vasut <marex@xxxxxxx>
---
Cc: Abel Vesa <abelvesa@xxxxxxxxxx>
Cc: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
Cc: Fabio Estevam <festevam@xxxxxxxxx>
Cc: Jacky Bai <ping.bai@xxxxxxx>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>
Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>
Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Cc: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
Cc: Michael Turquette <mturquette@xxxxxxxxxxxx>
Cc: NXP Linux Team <linux-imx@xxxxxxx>
Cc: Peng Fan <peng.fan@xxxxxxx>
Cc: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>
Cc: Richard Cochran <richardcochran@xxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
Cc: Stephen Boyd <sboyd@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-clk@xxxxxxxxxxxxxxx
---
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
---
.../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..ca0bdd0c551b8
--- /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@xxxxxxx>
+
+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
+ - power-domains
+ - clocks
+ - clock-names
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ # Clock Control Module node:
+ - |
+ #include <dt-bindings/clock/imx8mp-clock.h>
+
+ clock-controller@30e20000 {
+ #clock-cells = <1>;
+ compatible = "fsl,imx8mp-audio-blk-ctrl";
+ reg = <0x30e20000 0x10000>;
+ 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
