18142500eSPeter Ujfalusi# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 28142500eSPeter Ujfalusi%YAML 1.2 38142500eSPeter Ujfalusi--- 48142500eSPeter Ujfalusi$id: http://devicetree.org/schemas/sound/ti,j721e-cpb-audio.yaml# 58142500eSPeter Ujfalusi$schema: http://devicetree.org/meta-schemas/core.yaml# 68142500eSPeter Ujfalusi 78142500eSPeter Ujfalusititle: Texas Instruments J721e Common Processor Board Audio Support 88142500eSPeter Ujfalusi 98142500eSPeter Ujfalusimaintainers: 108142500eSPeter Ujfalusi - Peter Ujfalusi <peter.ujfalusi@ti.com> 118142500eSPeter Ujfalusi 128142500eSPeter Ujfalusidescription: | 138142500eSPeter Ujfalusi The audio support on the board is using pcm3168a codec connected to McASP10 148142500eSPeter Ujfalusi serializers in parallel setup. 158142500eSPeter Ujfalusi The pcm3168a SCKI clock is sourced from j721e AUDIO_REFCLK2 pin. 168142500eSPeter Ujfalusi In order to support 48KHz and 44.1KHz family of sampling rates the parent 178142500eSPeter Ujfalusi clock for AUDIO_REFCLK2 needs to be changed between PLL4 (for 48KHz) and 188142500eSPeter Ujfalusi PLL15 (for 44.1KHz). The same PLLs are used for McASP10's AUXCLK clock via 198142500eSPeter Ujfalusi different HSDIVIDER. 208142500eSPeter Ujfalusi 218142500eSPeter Ujfalusi Clocking setup for 48KHz family: 228142500eSPeter Ujfalusi PLL4 ---> PLL4_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk 238142500eSPeter Ujfalusi |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI 248142500eSPeter Ujfalusi 258142500eSPeter Ujfalusi Clocking setup for 44.1KHz family: 268142500eSPeter Ujfalusi PLL15 ---> PLL15_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk 278142500eSPeter Ujfalusi |-> PLL15_HSDIV2 ---> AUDIO_REFCLK2 ---> pcm3168a.SCKI 288142500eSPeter Ujfalusi 298142500eSPeter Ujfalusiproperties: 308142500eSPeter Ujfalusi compatible: 318142500eSPeter Ujfalusi items: 328142500eSPeter Ujfalusi - const: ti,j721e-cpb-audio 338142500eSPeter Ujfalusi 348142500eSPeter Ujfalusi model: 358142500eSPeter Ujfalusi $ref: /schemas/types.yaml#/definitions/string 368142500eSPeter Ujfalusi description: User specified audio sound card name 378142500eSPeter Ujfalusi 388142500eSPeter Ujfalusi ti,cpb-mcasp: 398142500eSPeter Ujfalusi description: phandle to McASP used on CPB 405f0b06daSRob Herring $ref: /schemas/types.yaml#/definitions/phandle 418142500eSPeter Ujfalusi 428142500eSPeter Ujfalusi ti,cpb-codec: 438142500eSPeter Ujfalusi description: phandle to the pcm3168a codec used on the CPB 445f0b06daSRob Herring $ref: /schemas/types.yaml#/definitions/phandle 458142500eSPeter Ujfalusi 468142500eSPeter Ujfalusi clocks: 478142500eSPeter Ujfalusi items: 488142500eSPeter Ujfalusi - description: AUXCLK clock for McASP used by CPB audio 498142500eSPeter Ujfalusi - description: Parent for CPB_McASP auxclk (for 48KHz) 508142500eSPeter Ujfalusi - description: Parent for CPB_McASP auxclk (for 44.1KHz) 518142500eSPeter Ujfalusi - description: SCKI clock for the pcm3168a codec on CPB 528142500eSPeter Ujfalusi - description: Parent for CPB_SCKI clock (for 48KHz) 538142500eSPeter Ujfalusi - description: Parent for CPB_SCKI clock (for 44.1KHz) 548142500eSPeter Ujfalusi 558142500eSPeter Ujfalusi clock-names: 568142500eSPeter Ujfalusi items: 578142500eSPeter Ujfalusi - const: cpb-mcasp-auxclk 588142500eSPeter Ujfalusi - const: cpb-mcasp-auxclk-48000 598142500eSPeter Ujfalusi - const: cpb-mcasp-auxclk-44100 608142500eSPeter Ujfalusi - const: cpb-codec-scki 618142500eSPeter Ujfalusi - const: cpb-codec-scki-48000 628142500eSPeter Ujfalusi - const: cpb-codec-scki-44100 638142500eSPeter Ujfalusi 648142500eSPeter Ujfalusirequired: 658142500eSPeter Ujfalusi - compatible 668142500eSPeter Ujfalusi - model 678142500eSPeter Ujfalusi - ti,cpb-mcasp 688142500eSPeter Ujfalusi - ti,cpb-codec 698142500eSPeter Ujfalusi - clocks 708142500eSPeter Ujfalusi - clock-names 718142500eSPeter Ujfalusi 728142500eSPeter UjfalusiadditionalProperties: false 738142500eSPeter Ujfalusi 748142500eSPeter Ujfalusiexamples: 758142500eSPeter Ujfalusi - |+ 768142500eSPeter Ujfalusi sound { 778142500eSPeter Ujfalusi compatible = "ti,j721e-cpb-audio"; 788142500eSPeter Ujfalusi model = "j721e-cpb"; 798142500eSPeter Ujfalusi 808142500eSPeter Ujfalusi status = "okay"; 818142500eSPeter Ujfalusi 828142500eSPeter Ujfalusi ti,cpb-mcasp = <&mcasp10>; 838142500eSPeter Ujfalusi ti,cpb-codec = <&pcm3168a_1>; 848142500eSPeter Ujfalusi 858142500eSPeter Ujfalusi clocks = <&k3_clks 184 1>, 868142500eSPeter Ujfalusi <&k3_clks 184 2>, <&k3_clks 184 4>, 878142500eSPeter Ujfalusi <&k3_clks 157 371>, 888142500eSPeter Ujfalusi <&k3_clks 157 400>, <&k3_clks 157 401>; 898142500eSPeter Ujfalusi clock-names = "cpb-mcasp-auxclk", 908142500eSPeter Ujfalusi "cpb-mcasp-auxclk-48000", "cpb-mcasp-auxclk-44100", 918142500eSPeter Ujfalusi "cpb-codec-scki", 928142500eSPeter Ujfalusi "cpb-codec-scki-48000", "cpb-codec-scki-44100"; 938142500eSPeter Ujfalusi }; 94