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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microchip,pdmc.yaml (2557B)

      1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
      2%YAML 1.2
      3---
      4$id: http://devicetree.org/schemas/sound/microchip,pdmc.yaml#
      5$schema: http://devicetree.org/meta-schemas/core.yaml#
      6
      7title: Microchip Pulse Density Microphone Controller
      8
      9maintainers:
     10  - Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
     11
     12description:
     13  The Microchip Pulse Density Microphone Controller (PDMC) interfaces up to 4
     14  digital microphones having Pulse Density Modulated (PDM) outputs.
     15
     16properties:
     17  compatible:
     18    const: microchip,sama7g5-pdmc
     19
     20  reg:
     21    maxItems: 1
     22
     23  "#sound-dai-cells":
     24    const: 0
     25
     26  interrupts:
     27    maxItems: 1
     28
     29  clocks:
     30    items:
     31      - description: Peripheral Bus Clock
     32      - description: Generic Clock
     33
     34  clock-names:
     35    items:
     36      - const: pclk
     37      - const: gclk
     38
     39  dmas:
     40    description: RX DMA Channel
     41    maxItems: 1
     42
     43  dma-names:
     44    const: rx
     45
     46  microchip,mic-pos:
     47    description: |
     48      Position of PDM microphones on the DS line and the sampling edge (rising
     49      or falling) of the CLK line. A microphone is represented as a pair of DS
     50      line and the sampling edge. The first microphone is mapped to channel 0,
     51      the second to channel 1, etc.
     52    $ref: /schemas/types.yaml#/definitions/uint32-matrix
     53    items:
     54      items:
     55        - description: value for DS line
     56        - description: value for sampling edge
     57      anyOf:
     58        - enum:
     59            - [0, 0]
     60            - [0, 1]
     61            - [1, 0]
     62            - [1, 1]
     63    minItems: 1
     64    maxItems: 4
     65    uniqueItems: true
     66
     67required:
     68  - compatible
     69  - reg
     70  - "#sound-dai-cells"
     71  - interrupts
     72  - clocks
     73  - clock-names
     74  - dmas
     75  - dma-names
     76  - microchip,mic-pos
     77
     78additionalProperties: false
     79
     80examples:
     81  - |
     82    #include <dt-bindings/clock/at91.h>
     83    #include <dt-bindings/dma/at91.h>
     84    #include <dt-bindings/interrupt-controller/arm-gic.h>
     85    #include <dt-bindings/sound/microchip,pdmc.h>
     86
     87    pdmc: sound@e1608000 {
     88        compatible = "microchip,sama7g5-pdmc";
     89        reg = <0xe1608000 0x4000>;
     90        #sound-dai-cells = <0>;
     91        interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
     92        dmas = <&dma0 AT91_XDMAC_DT_PERID(37)>;
     93        dma-names = "rx";
     94        clocks = <&pmc PMC_TYPE_PERIPHERAL 68>, <&pmc PMC_TYPE_GCK 68>;
     95        clock-names = "pclk", "gclk";
     96        microchip,mic-pos = <MCHP_PDMC_DS0 MCHP_PDMC_CLK_POSITIVE>,
     97                            <MCHP_PDMC_DS0 MCHP_PDMC_CLK_NEGATIVE>,
     98                            <MCHP_PDMC_DS1 MCHP_PDMC_CLK_POSITIVE>,
     99                            <MCHP_PDMC_DS1 MCHP_PDMC_CLK_NEGATIVE>;
    100    };