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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2020 Texas Instruments Incorporated
+# Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/ti,j721e-cpb-ivi-audio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments J721e Common Processor Board Audio Support
+
+maintainers:
+ - Peter Ujfalusi <peter.ujfalusi@gmail.com>
+
+description: |
+ The Infotainment board plugs into the Common Processor Board, the support of the
+ extension board is extending the CPB audio support, decribed in:
+ sound/ti,j721e-cpb-audio.txt
+
+ The audio support on the Infotainment Expansion Board consists of McASP0
+ connected to two pcm3168a codecs with dedicated set of serializers to each.
+ The SCKI for pcm3168a is sourced from j721e AUDIO_REFCLK0 pin.
+
+ In order to support 48KHz and 44.1KHz family of sampling rates the parent clock
+ for AUDIO_REFCLK0 needs to be changed between PLL4 (for 48KHz) and PLL15 (for
+ 44.1KHz). The same PLLs are used for McASP0's AUXCLK clock via different
+ HSDIVIDER.
+
+ Note: the same PLL4 and PLL15 is used by the audio support on the CPB!
+
+ Clocking setup for 48KHz family:
+ PLL4 ---> PLL4_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
+ | |-> MCASP0_AUXCLK ---> McASP0.auxclk
+ |
+ |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
+ |-> AUDIO_REFCLK0 ---> pcm3168a_a/b.SCKI
+
+ Clocking setup for 44.1KHz family:
+ PLL15 ---> PLL15_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
+ | |-> MCASP0_AUXCLK ---> McASP0.auxclk
+ |
+ |-> PLL15_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI
+ |-> AUDIO_REFCLK0 ---> pcm3168a_a/b.SCKI
+
+properties:
+ compatible:
+ items:
+ - const: ti,j721e-cpb-ivi-audio
+
+ model:
+ $ref: /schemas/types.yaml#/definitions/string
+ description: User specified audio sound card name
+
+ ti,cpb-mcasp:
+ description: phandle to McASP used on CPB
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ ti,cpb-codec:
+ description: phandle to the pcm3168a codec used on the CPB
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ ti,ivi-mcasp:
+ description: phandle to McASP used on IVI
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ ti,ivi-codec-a:
+ description: phandle to the pcm3168a-A codec on the expansion board
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ ti,ivi-codec-b:
+ description: phandle to the pcm3168a-B codec on the expansion board
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ clocks:
+ items:
+ - description: AUXCLK clock for McASP used by CPB audio
+ - description: Parent for CPB_McASP auxclk (for 48KHz)
+ - description: Parent for CPB_McASP auxclk (for 44.1KHz)
+ - description: SCKI clock for the pcm3168a codec on CPB
+ - description: Parent for CPB_SCKI clock (for 48KHz)
+ - description: Parent for CPB_SCKI clock (for 44.1KHz)
+ - description: AUXCLK clock for McASP used by IVI audio
+ - description: Parent for IVI_McASP auxclk (for 48KHz)
+ - description: Parent for IVI_McASP auxclk (for 44.1KHz)
+ - description: SCKI clock for the pcm3168a codec on IVI
+ - description: Parent for IVI_SCKI clock (for 48KHz)
+ - description: Parent for IVI_SCKI clock (for 44.1KHz)
+
+ clock-names:
+ items:
+ - const: cpb-mcasp-auxclk
+ - const: cpb-mcasp-auxclk-48000
+ - const: cpb-mcasp-auxclk-44100
+ - const: cpb-codec-scki
+ - const: cpb-codec-scki-48000
+ - const: cpb-codec-scki-44100
+ - const: ivi-mcasp-auxclk
+ - const: ivi-mcasp-auxclk-48000
+ - const: ivi-mcasp-auxclk-44100
+ - const: ivi-codec-scki
+ - const: ivi-codec-scki-48000
+ - const: ivi-codec-scki-44100
+
+required:
+ - compatible
+ - model
+ - ti,cpb-mcasp
+ - ti,cpb-codec
+ - ti,ivi-mcasp
+ - ti,ivi-codec-a
+ - ti,ivi-codec-b
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |+
+ sound {
+ compatible = "ti,j721e-cpb-ivi-audio";
+ model = "j721e-cpb-ivi";
+
+ ti,cpb-mcasp = <&mcasp10>;
+ ti,cpb-codec = <&pcm3168a_1>;
+
+ ti,ivi-mcasp = <&mcasp0>;
+ ti,ivi-codec-a = <&pcm3168a_a>;
+ ti,ivi-codec-b = <&pcm3168a_b>;
+
+ clocks = <&k3_clks 184 1>,
+ <&k3_clks 184 2>, <&k3_clks 184 4>,
+ <&k3_clks 157 371>,
+ <&k3_clks 157 400>, <&k3_clks 157 401>,
+ <&k3_clks 174 1>,
+ <&k3_clks 174 2>, <&k3_clks 174 4>,
+ <&k3_clks 157 301>,
+ <&k3_clks 157 330>, <&k3_clks 157 331>;
+ clock-names = "cpb-mcasp-auxclk",
+ "cpb-mcasp-auxclk-48000", "cpb-mcasp-auxclk-44100",
+ "cpb-codec-scki",
+ "cpb-codec-scki-48000", "cpb-codec-scki-44100",
+ "ivi-mcasp-auxclk",
+ "ivi-mcasp-auxclk-48000", "ivi-mcasp-auxclk-44100",
+ "ivi-codec-scki",
+ "ivi-codec-scki-48000", "ivi-codec-scki-44100";
+ };