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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aspeed,ast2600-adc.yaml (2803B)

      1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
      2%YAML 1.2
      3---
      4$id: http://devicetree.org/schemas/iio/adc/aspeed,ast2600-adc.yaml#
      5$schema: http://devicetree.org/meta-schemas/core.yaml#
      6
      7title: ADC that forms part of an ASPEED server management processor.
      8
      9maintainers:
     10  - Billy Tsai <billy_tsai@aspeedtech.com>
     11
     12description: |
     13  • 10-bits resolution for 16 voltage channels.
     14  • The device split into two individual engine and each contains 8 voltage
     15  channels.
     16  • Channel scanning can be non-continuous.
     17  • Programmable ADC clock frequency.
     18  • Programmable upper and lower threshold for each channels.
     19  • Interrupt when larger or less than threshold for each channels.
     20  • Support hysteresis for each channels.
     21  • Built-in a compensating method.
     22  • Built-in a register to trim internal reference voltage.
     23  • Internal or External reference voltage.
     24  • Support 2 Internal reference voltage 1.2v or 2.5v.
     25  • Integrate dividing circuit for battery sensing.
     26
     27properties:
     28  compatible:
     29    enum:
     30      - aspeed,ast2600-adc0
     31      - aspeed,ast2600-adc1
     32    description:
     33      Their trimming data, which is used to calibrate internal reference volage,
     34      locates in different address of OTP.
     35
     36  reg:
     37    maxItems: 1
     38
     39  clocks:
     40    maxItems: 1
     41    description:
     42      Input clock used to derive the sample clock. Expected to be the
     43      SoC's APB clock.
     44
     45  resets:
     46    maxItems: 1
     47
     48  "#io-channel-cells":
     49    const: 1
     50
     51  vref-supply:
     52    description:
     53      The external regulator supply ADC reference voltage.
     54
     55  aspeed,int-vref-microvolt:
     56    enum: [1200000, 2500000]
     57    description:
     58      ADC internal reference voltage in microvolts.
     59
     60  aspeed,battery-sensing:
     61    type: boolean
     62    description:
     63      Inform the driver that last channel will be used to sensor battery.
     64
     65  aspeed,trim-data-valid:
     66    type: boolean
     67    description: |
     68      The ADC reference voltage can be calibrated to obtain the trimming
     69      data which will be stored in otp. This property informs the driver that
     70      the data store in the otp is valid.
     71
     72required:
     73  - compatible
     74  - reg
     75  - clocks
     76  - resets
     77  - "#io-channel-cells"
     78
     79additionalProperties: false
     80
     81examples:
     82  - |
     83    #include <dt-bindings/clock/ast2600-clock.h>
     84    adc0: adc@1e6e9000 {
     85        compatible = "aspeed,ast2600-adc0";
     86        reg = <0x1e6e9000 0x100>;
     87        clocks = <&syscon ASPEED_CLK_APB2>;
     88        resets = <&syscon ASPEED_RESET_ADC>;
     89        #io-channel-cells = <1>;
     90        aspeed,int-vref-microvolt = <2500000>;
     91    };
     92    adc1: adc@1e6e9100 {
     93        compatible = "aspeed,ast2600-adc1";
     94        reg = <0x1e6e9100 0x100>;
     95        clocks = <&syscon ASPEED_CLK_APB2>;
     96        resets = <&syscon ASPEED_RESET_ADC>;
     97        #io-channel-cells = <1>;
     98        aspeed,int-vref-microvolt = <2500000>;
     99    };
    100...