Documentation/ABI/testing/sysfs-platform-dptf

   1 What:           /sys/bus/platform/devices/INT3407:00/dptf_power/charger_type
   2 Date:           Jul, 2016
   3 KernelVersion:  v4.10
   4 Contact:        linux-acpi@vger.kernel.org
   5 Description:
   6                 (RO) The charger type - Traditional, Hybrid or NVDC.
   7
   8 What:           /sys/bus/platform/devices/INT3407:00/dptf_power/adapter_rating_mw
   9 Date:           Jul, 2016
  10 KernelVersion:  v4.10
  11 Contact:        linux-acpi@vger.kernel.org
  12 Description:
  13                 (RO) Adapter rating in milliwatts (the maximum Adapter power).
  14                 Must be 0 if no AC Adaptor is plugged in.
  15
  16 What:           /sys/bus/platform/devices/INT3407:00/dptf_power/max_platform_power_mw
  17 Date:           Jul, 2016
  18 KernelVersion:  v4.10
  19 Contact:        linux-acpi@vger.kernel.org
  20 Description:
  21                 (RO) Maximum platform power that can be supported by the battery
  22                 in milliwatts.
  23
  24 What:           /sys/bus/platform/devices/INT3407:00/dptf_power/platform_power_source
  25 Date:           Jul, 2016
  26 KernelVersion:  v4.10
  27 Contact:        linux-acpi@vger.kernel.org
  28 Description:
  29                 (RO) Display the platform power source
  30
  31                 ========= ============================
  32                 bits[3:0] Current power source
  33                           - 0x00 = DC
  34                           - 0x01 = AC
  35                           - 0x02 = USB
  36                           - 0x03 = Wireless Charger
  37                 bits[7:4] Power source sequence number
  38                 ========= ============================
  39
  40 What:           /sys/bus/platform/devices/INT3407:00/dptf_power/battery_steady_power
  41 Date:           Jul, 2016
  42 KernelVersion:  v4.10
  43 Contact:        linux-acpi@vger.kernel.org
  44 Description:
  45                 (RO) The maximum sustained power for battery in milliwatts.
  46
  47 What:           /sys/bus/platform/devices/INT3407:00/dptf_power/rest_of_platform_power_mw
  48 Date:           June, 2020
  49 KernelVersion:  v5.8
  50 Contact:        linux-acpi@vger.kernel.org
  51 Description:
  52                 (RO) Shows the rest (outside of SoC) of worst-case platform power.
  53
  54 What:           /sys/bus/platform/devices/INT3407:00/dptf_power/prochot_confirm
  55 Date:           June, 2020
  56 KernelVersion:  v5.8
  57 Contact:        linux-acpi@vger.kernel.org
  58 Description:
  59                 (WO) Confirm embedded controller about a prochot notification.
  60
  61 What:           /sys/bus/platform/devices/INT3532:00/dptf_battery/max_platform_power_mw
  62 Date:           June, 2020
  63 KernelVersion:  v5.8
  64 Contact:        linux-acpi@vger.kernel.org
  65 Description:
  66                 (RO) The maximum platform power that can be supported by the battery in milli watts.
  67
  68 What:           /sys/bus/platform/devices/INT3532:00/dptf_battery/max_steady_state_power_mw
  69 Date:           June, 2020
  70 KernelVersion:  v5.8
  71 Contact:        linux-acpi@vger.kernel.org
  72 Description:
  73                 (RO) The maximum sustained power for battery in milli watts.
  74
  75 What:           /sys/bus/platform/devices/INT3532:00/dptf_battery/high_freq_impedance_mohm
  76 Date:           June, 2020
  77 KernelVersion:  v5.8
  78 Contact:        linux-acpi@vger.kernel.org
  79 Description:
  80                 (RO) The high frequency impedance value that can be obtained from battery
  81                 fuel gauge in milli Ohms.
  82
  83 What:           /sys/bus/platform/devices/INT3532:00/dptf_battery/no_load_voltage_mv
  84 Date:           June, 2020
  85 KernelVersion:  v5.8
  86 Contact:        linux-acpi@vger.kernel.org
  87 Description:
  88                 (RO) The no-load voltage that can be obtained from battery fuel gauge in
  89                 milli volts.
  90
  91 What:           /sys/bus/platform/devices/INT3532:00/dptf_battery/current_discharge_capbility_ma
  92 Date:           June, 2020
  93 KernelVersion:  v5.8
  94 Contact:        linux-acpi@vger.kernel.org
  95 Description:
  96                 (RO) The battery discharge current capability obtained from battery fuel gauge in
  97                 milli Amps.
  98
  99 What:           /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/freq_mhz_low_clock
 100 Date:           November, 2020
 101 KernelVersion:  v5.10
 102 Contact:        linux-acpi@vger.kernel.org
 103 Description:
 104                 (RW) The PCH FIVR (Fully Integrated Voltage Regulator) switching frequency in MHz,
 105                 when FIVR clock is 19.2MHz or 24MHz.
 106
 107 What:           /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/freq_mhz_high_clock
 108 Date:           November, 2020
 109 KernelVersion:  v5.10
 110 Contact:        linux-acpi@vger.kernel.org
 111 Description:
 112                 (RW) The PCH FIVR (Fully Integrated Voltage Regulator) switching frequency in MHz,
 113                 when FIVR clock is 38.4MHz.
 114
 115 What:           /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/fivr_switching_freq_mhz
 116 Date:           September, 2021
 117 KernelVersion:  v5.15
 118 Contact:        linux-acpi@vger.kernel.org
 119 Description:
 120                 (RO) Get the FIVR switching control frequency in MHz.
 121
 122 What:           /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/fivr_switching_fault_status
 123 Date:           September, 2021
 124 KernelVersion:  v5.15
 125 Contact:        linux-acpi@vger.kernel.org
 126 Description:
 127                 (RO) Read the FIVR switching frequency control fault status.
 128
 129 What:           /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/ssc_clock_info
 130 Date:           September, 2021
 131 KernelVersion:  v5.15
 132 Contact:        linux-acpi@vger.kernel.org
 133 Description:
 134                 (RO) Presents SSC (spread spectrum clock) information for EMI
 135                 (Electro magnetic interference) control. This is a bit mask.
 136
 137                 ======= ==========================================
 138                 Bits    Description
 139                 ======= ==========================================
 140                 [7:0]   Sets clock spectrum spread percentage:
 141                         0x00=0.2% , 0x3F=10%
 142                         1 LSB = 0.1% increase in spread (for
 143                         settings 0x01 thru 0x1C)
 144                         1 LSB = 0.2% increase in spread (for
 145                         settings 0x1E thru 0x3F)
 146                 [8]     When set to 1, enables spread
 147                         spectrum clock
 148                 [9]     0: Triangle mode. FFC frequency
 149                         walks around the Fcenter in a linear
 150                         fashion
 151                         1: Random walk mode. FFC frequency
 152                         changes randomly within the SSC
 153                         (Spread spectrum clock) range
 154                 [10]    0: No white noise. 1: Add white noise
 155                         to spread waveform
 156                 [11]    When 1, future writes are ignored.
 157                 ======= ==========================================