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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renesas,rcar-gyroadc.yaml (4179B)

      1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
      2%YAML 1.2
      3---
      4$id: http://devicetree.org/schemas/iio/adc/renesas,rcar-gyroadc.yaml#
      5$schema: http://devicetree.org/meta-schemas/core.yaml#
      6
      7title: Renesas R-Car GyroADC
      8
      9maintainers:
     10  - Marek Vasut <marek.vasut+renesas@gmail.com>
     11
     12description: |
     13  The GyroADC block is a reduced SPI block with up to 8 chipselect lines,
     14  which supports the SPI protocol of a selected few SPI ADCs. The SPI ADCs
     15  are sampled by the GyroADC block in a round-robin fashion and the result
     16  presented in the GyroADC registers.
     17  The ADC bindings should match with that of the devices connected to a
     18  full featured SPI bus.
     19
     20properties:
     21  compatible:
     22    items:
     23      - enum:
     24          - renesas,r8a7791-gyroadc
     25          - renesas,r8a7792-gyroadc
     26      - const: renesas,rcar-gyroadc
     27
     28  reg:
     29    maxItems: 1
     30
     31  clocks:
     32    maxItems: 1
     33
     34  clock-names:
     35    const: fck
     36
     37  power-domains: true
     38
     39  resets: true
     40
     41  "#address-cells":
     42    const: 1
     43
     44  "#size-cells":
     45    const: 0
     46
     47additionalProperties: false
     48
     49required:
     50  - compatible
     51  - reg
     52  - clocks
     53  - clock-names
     54  - "#address-cells"
     55  - "#size-cells"
     56
     57patternProperties:
     58  "@[0-7]$":
     59    type: object
     60    properties:
     61      compatible:
     62        description: |
     63          fujitsu,mb88101a
     64          - Fujitsu MB88101A compatible mode,
     65            12bit sampling, up to 4 channels can be sampled in round-robin
     66            fashion. One Fujitsu chip supplies four GyroADC channels with
     67            data as it contains four ADCs on the chip and thus for 4-channel
     68            operation, single MB88101A is required. The Cx chipselect lines
     69            of the MB88101A connect directly to two CHS lines of the GyroADC,
     70            no demuxer is required. The data out line of each MB88101A
     71            connects to a shared input pin of the GyroADC.
     72          ti,adcs7476 or ti,adc121 or adi,ad7476
     73          - TI ADCS7476 / TI ADC121 / ADI AD7476 compatible mode, 15bit
     74            sampling, up to 8 channels can be sampled in round-robin
     75            fashion. One TI/ADI chip supplies single ADC channel with data,
     76            thus for 8-channel operation, 8 chips are required.
     77            A 3:8 chipselect demuxer is  required to connect the nCS line
     78            of the TI/ADI chips to the GyroADC, while MISO line of each
     79            TI/ADI ADC connects to a shared input pin of the GyroADC.
     80          maxim,max1162 or maxim,max11100
     81          - Maxim MAX1162 / Maxim MAX11100 compatible mode,  16bit sampling,
     82            up to 8 channels can be sampled in round-robin fashion. One
     83            Maxim chip supplies single ADC channel with data, thus for
     84            8-channel operation, 8 chips are required.
     85            A 3:8 chipselect demuxer is required to connect the nCS line
     86            of the MAX chips to the GyroADC, while MISO line of each Maxim
     87            ADC connects to a shared input pin of the GyroADC.
     88        enum:
     89          - adi,7476
     90          - fujitsu,mb88101a
     91          - maxim,max1162
     92          - maxim,max11100
     93          - ti,adcs7476
     94          - ti,adc121
     95
     96      reg:
     97        minimum: 0
     98        maximum: 7
     99
    100      vref-supply: true
    101
    102    additionalProperties: false
    103
    104    required:
    105      - compatible
    106      - reg
    107      - vref-supply
    108
    109examples:
    110  - |
    111    #include <dt-bindings/clock/r8a7791-clock.h>
    112    #include <dt-bindings/power/r8a7791-sysc.h>
    113    soc {
    114        #address-cells = <2>;
    115        #size-cells = <2>;
    116
    117        adc@e6e54000 {
    118            compatible = "renesas,r8a7791-gyroadc", "renesas,rcar-gyroadc";
    119            reg = <0 0xe6e54000 0 64>;
    120            clocks = <&mstp9_clks R8A7791_CLK_GYROADC>;
    121            clock-names = "fck";
    122            power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
    123
    124            pinctrl-0 = <&adc_pins>;
    125            pinctrl-names = "default";
    126
    127            #address-cells = <1>;
    128            #size-cells = <0>;
    129
    130            adc@0 {
    131                reg = <0>;
    132                compatible = "maxim,max1162";
    133                vref-supply = <&vref_max1162>;
    134            };
    135
    136            adc@1 {
    137                reg = <1>;
    138                compatible = "maxim,max1162";
    139                vref-supply = <&vref_max1162>;
    140            };
    141        };
    142    };
    143...