diff options
Diffstat (limited to 'Documentation/ABI/testing/sysfs-platform-dptf')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-platform-dptf | 125 |
1 files changed, 121 insertions, 4 deletions
diff --git a/Documentation/ABI/testing/sysfs-platform-dptf b/Documentation/ABI/testing/sysfs-platform-dptf index 325dc0667dbb..620fd20434a5 100644 --- a/Documentation/ABI/testing/sysfs-platform-dptf +++ b/Documentation/ABI/testing/sysfs-platform-dptf @@ -27,10 +27,15 @@ KernelVersion: v4.10 Contact: linux-acpi@vger.kernel.org Description: (RO) Display the platform power source - 0x00 = DC - 0x01 = AC - 0x02 = USB - 0x03 = Wireless Charger + + ========= ============================ + bits[3:0] Current power source + - 0x00 = DC + - 0x01 = AC + - 0x02 = USB + - 0x03 = Wireless Charger + bits[7:4] Power source sequence number + ========= ============================ What: /sys/bus/platform/devices/INT3407:00/dptf_power/battery_steady_power Date: Jul, 2016 @@ -38,3 +43,115 @@ KernelVersion: v4.10 Contact: linux-acpi@vger.kernel.org Description: (RO) The maximum sustained power for battery in milliwatts. + +What: /sys/bus/platform/devices/INT3407:00/dptf_power/rest_of_platform_power_mw +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) Shows the rest (outside of SoC) of worst-case platform power. + +What: /sys/bus/platform/devices/INT3407:00/dptf_power/prochot_confirm +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (WO) Confirm embedded controller about a prochot notification. + +What: /sys/bus/platform/devices/INT3532:00/dptf_battery/max_platform_power_mw +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) The maximum platform power that can be supported by the battery in milli watts. + +What: /sys/bus/platform/devices/INT3532:00/dptf_battery/max_steady_state_power_mw +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) The maximum sustained power for battery in milli watts. + +What: /sys/bus/platform/devices/INT3532:00/dptf_battery/high_freq_impedance_mohm +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) The high frequency impedance value that can be obtained from battery + fuel gauge in milli Ohms. + +What: /sys/bus/platform/devices/INT3532:00/dptf_battery/no_load_voltage_mv +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) The no-load voltage that can be obtained from battery fuel gauge in + milli volts. + +What: /sys/bus/platform/devices/INT3532:00/dptf_battery/current_discharge_capbility_ma +Date: June, 2020 +KernelVersion: v5.8 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) The battery discharge current capability obtained from battery fuel gauge in + milli Amps. + +What: /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/freq_mhz_low_clock +Date: November, 2020 +KernelVersion: v5.10 +Contact: linux-acpi@vger.kernel.org +Description: + (RW) The PCH FIVR (Fully Integrated Voltage Regulator) switching frequency in MHz, + when FIVR clock is 19.2MHz or 24MHz. + +What: /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/freq_mhz_high_clock +Date: November, 2020 +KernelVersion: v5.10 +Contact: linux-acpi@vger.kernel.org +Description: + (RW) The PCH FIVR (Fully Integrated Voltage Regulator) switching frequency in MHz, + when FIVR clock is 38.4MHz. + +What: /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/fivr_switching_freq_mhz +Date: September, 2021 +KernelVersion: v5.15 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) Get the FIVR switching control frequency in MHz. + +What: /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/fivr_switching_fault_status +Date: September, 2021 +KernelVersion: v5.15 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) Read the FIVR switching frequency control fault status. + +What: /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/ssc_clock_info +Date: September, 2021 +KernelVersion: v5.15 +Contact: linux-acpi@vger.kernel.org +Description: + (RO) Presents SSC (spread spectrum clock) information for EMI + (Electro magnetic interference) control. This is a bit mask. + + ======= ========================================== + Bits Description + ======= ========================================== + [7:0] Sets clock spectrum spread percentage: + 0x00=0.2% , 0x3F=10% + 1 LSB = 0.1% increase in spread (for + settings 0x01 thru 0x1C) + 1 LSB = 0.2% increase in spread (for + settings 0x1E thru 0x3F) + [8] When set to 1, enables spread + spectrum clock + [9] 0: Triangle mode. FFC frequency + walks around the Fcenter in a linear + fashion + 1: Random walk mode. FFC frequency + changes randomly within the SSC + (Spread spectrum clock) range + [10] 0: No white noise. 1: Add white noise + to spread waveform + [11] When 1, future writes are ignored. + ======= ========================================== |