cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ti,j721e-cpb-audio.yaml (4134B)

      1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
      2# Copyright (C) 2020 Texas Instruments Incorporated
      3# Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
      4%YAML 1.2
      5---
      6$id: http://devicetree.org/schemas/sound/ti,j721e-cpb-audio.yaml#
      7$schema: http://devicetree.org/meta-schemas/core.yaml#
      8
      9title: Texas Instruments J721e Common Processor Board Audio Support
     10
     11maintainers:
     12  - Peter Ujfalusi <peter.ujfalusi@gmail.com>
     13
     14description: |
     15  The audio support on the board is using pcm3168a codec connected to McASP10
     16  serializers in parallel setup.
     17  The pcm3168a SCKI clock is sourced from j721e AUDIO_REFCLK2 pin.
     18  In order to support 48KHz and 44.1KHz family of sampling rates the parent
     19  clock for AUDIO_REFCLK2 needs to be changed between PLL4 (for 48KHz) and
     20  PLL15 (for 44.1KHz). The same PLLs are used for McASP10's AUXCLK clock via
     21  different HSDIVIDER.
     22
     23  Clocking setup for j721e:
     24    48KHz family:
     25    PLL4 ---> PLL4_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
     26          |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2  ---> pcm3168a.SCKI
     27
     28    44.1KHz family:
     29    PLL15 ---> PLL15_HSDIV0 ---> MCASP10_AUXCLK ---> McASP10.auxclk
     30           |-> PLL15_HSDIV2 ---> AUDIO_REFCLK2  ---> pcm3168a.SCKI
     31
     32  Clocking setup for j7200:
     33    48KHz family:
     34    PLL4 ---> PLL4_HSDIV0 ---> MCASP0_AUXCLK ---> McASP0.auxclk
     35          |-> PLL4_HSDIV2 ---> AUDIO_REFCLK2  ---> pcm3168a.SCKI
     36
     37properties:
     38  compatible:
     39    enum:
     40      - ti,j721e-cpb-audio
     41      - ti,j7200-cpb-audio
     42
     43  model:
     44    $ref: /schemas/types.yaml#/definitions/string
     45    description: User specified audio sound card name
     46
     47  ti,cpb-mcasp:
     48    description: phandle to McASP used on CPB
     49    $ref: /schemas/types.yaml#/definitions/phandle
     50
     51  ti,cpb-codec:
     52    description: phandle to the pcm3168a codec used on the CPB
     53    $ref: /schemas/types.yaml#/definitions/phandle
     54
     55  clocks:
     56    minItems: 4
     57    maxItems: 6
     58
     59  clock-names:
     60    minItems: 4
     61    maxItems: 6
     62
     63required:
     64  - compatible
     65  - model
     66  - ti,cpb-mcasp
     67  - ti,cpb-codec
     68  - clocks
     69  - clock-names
     70
     71additionalProperties: false
     72
     73allOf:
     74  - if:
     75      properties:
     76        compatible:
     77          contains:
     78            const: ti,j721e-cpb-audio
     79
     80    then:
     81      properties:
     82        clocks:
     83          items:
     84            - description: AUXCLK clock for McASP used by CPB audio
     85            - description: Parent for CPB_McASP auxclk (for 48KHz)
     86            - description: Parent for CPB_McASP auxclk (for 44.1KHz)
     87            - description: SCKI clock for the pcm3168a codec on CPB
     88            - description: Parent for CPB_SCKI clock (for 48KHz)
     89            - description: Parent for CPB_SCKI clock (for 44.1KHz)
     90
     91        clock-names:
     92          items:
     93            - const: cpb-mcasp-auxclk
     94            - const: cpb-mcasp-auxclk-48000
     95            - const: cpb-mcasp-auxclk-44100
     96            - const: cpb-codec-scki
     97            - const: cpb-codec-scki-48000
     98            - const: cpb-codec-scki-44100
     99
    100  - if:
    101      properties:
    102        compatible:
    103          contains:
    104            const: ti,j7200-cpb-audio
    105
    106    then:
    107      properties:
    108        clocks:
    109          items:
    110            - description: AUXCLK clock for McASP used by CPB audio
    111            - description: Parent for CPB_McASP auxclk (for 48KHz)
    112            - description: SCKI clock for the pcm3168a codec on CPB
    113            - description: Parent for CPB_SCKI clock (for 48KHz)
    114
    115        clock-names:
    116          items:
    117            - const: cpb-mcasp-auxclk
    118            - const: cpb-mcasp-auxclk-48000
    119            - const: cpb-codec-scki
    120            - const: cpb-codec-scki-48000
    121
    122examples:
    123  - |+
    124    sound {
    125        compatible = "ti,j721e-cpb-audio";
    126        model = "j721e-cpb";
    127
    128        ti,cpb-mcasp = <&mcasp10>;
    129        ti,cpb-codec = <&pcm3168a_1>;
    130
    131        clocks = <&k3_clks 184 1>,
    132                 <&k3_clks 184 2>, <&k3_clks 184 4>,
    133                 <&k3_clks 157 371>,
    134                 <&k3_clks 157 400>, <&k3_clks 157 401>;
    135        clock-names = "cpb-mcasp-auxclk",
    136                      "cpb-mcasp-auxclk-48000", "cpb-mcasp-auxclk-44100",
    137                      "cpb-codec-scki",
    138                      "cpb-codec-scki-48000", "cpb-codec-scki-44100";
    139    };