xref: /linux/Documentation/ABI/testing/sysfs-platform-dptf (revision 5d8dfaa71d87f742c53309b95cb6a8b274119027)
1What:		/sys/bus/platform/devices/INT3407:00/dptf_power/charger_type
2Date:		Jul, 2016
3KernelVersion:	v4.10
4Contact:	linux-acpi@vger.kernel.org
5Description:
6		(RO) The charger type - Traditional, Hybrid or NVDC.
7
8What:		/sys/bus/platform/devices/INT3407:00/dptf_power/adapter_rating_mw
9Date:		Jul, 2016
10KernelVersion:	v4.10
11Contact:	linux-acpi@vger.kernel.org
12Description:
13		(RO) Adapter rating in milliwatts (the maximum Adapter power).
14		Must be 0 if no AC Adaptor is plugged in.
15
16What:		/sys/bus/platform/devices/INT3407:00/dptf_power/max_platform_power_mw
17Date:		Jul, 2016
18KernelVersion:	v4.10
19Contact:	linux-acpi@vger.kernel.org
20Description:
21		(RO) Maximum platform power that can be supported by the battery
22		in milliwatts.
23
24What:		/sys/bus/platform/devices/INT3407:00/dptf_power/platform_power_source
25Date:		Jul, 2016
26KernelVersion:	v4.10
27Contact:	linux-acpi@vger.kernel.org
28Description:
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
40What:		/sys/bus/platform/devices/INT3407:00/dptf_power/battery_steady_power
41Date:		Jul, 2016
42KernelVersion:	v4.10
43Contact:	linux-acpi@vger.kernel.org
44Description:
45		(RO) The maximum sustained power for battery in milliwatts.
46
47What:		/sys/bus/platform/devices/INT3407:00/dptf_power/rest_of_platform_power_mw
48Date:		June, 2020
49KernelVersion:	v5.8
50Contact:	linux-acpi@vger.kernel.org
51Description:
52		(RO) Shows the rest (outside of SoC) of worst-case platform power.
53
54What:		/sys/bus/platform/devices/INT3407:00/dptf_power/prochot_confirm
55Date:		June, 2020
56KernelVersion:	v5.8
57Contact:	linux-acpi@vger.kernel.org
58Description:
59		(WO) Confirm embedded controller about a prochot notification.
60
61What:		/sys/bus/platform/devices/INT3532:00/dptf_battery/max_platform_power_mw
62Date:		June, 2020
63KernelVersion:	v5.8
64Contact:	linux-acpi@vger.kernel.org
65Description:
66		(RO) The maximum platform power that can be supported by the battery in milli watts.
67
68What:		/sys/bus/platform/devices/INT3532:00/dptf_battery/max_steady_state_power_mw
69Date:		June, 2020
70KernelVersion:	v5.8
71Contact:	linux-acpi@vger.kernel.org
72Description:
73		(RO) The maximum sustained power for battery in milli watts.
74
75What:		/sys/bus/platform/devices/INT3532:00/dptf_battery/high_freq_impedance_mohm
76Date:		June, 2020
77KernelVersion:	v5.8
78Contact:	linux-acpi@vger.kernel.org
79Description:
80		(RO) The high frequency impedance value that can be obtained from battery
81		fuel gauge in milli Ohms.
82
83What:		/sys/bus/platform/devices/INT3532:00/dptf_battery/no_load_voltage_mv
84Date:		June, 2020
85KernelVersion:	v5.8
86Contact:	linux-acpi@vger.kernel.org
87Description:
88		(RO) The no-load voltage that can be obtained from battery fuel gauge in
89		milli volts.
90
91What:		/sys/bus/platform/devices/INT3532:00/dptf_battery/current_discharge_capbility_ma
92Date:		June, 2020
93KernelVersion:	v5.8
94Contact:	linux-acpi@vger.kernel.org
95Description:
96		(RO) The battery discharge current capability obtained from battery fuel gauge in
97		milli Amps.
98
99What:		/sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/freq_mhz_low_clock
100Date:		November, 2020
101KernelVersion:	v5.10
102Contact:	linux-acpi@vger.kernel.org
103Description:
104		(RW) The PCH FIVR (Fully Integrated Voltage Regulator) switching frequency in MHz,
105		when FIVR clock is 19.2MHz or 24MHz.
106
107What:		/sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/freq_mhz_high_clock
108Date:		November, 2020
109KernelVersion:	v5.10
110Contact:	linux-acpi@vger.kernel.org
111Description:
112		(RW) The PCH FIVR (Fully Integrated Voltage Regulator) switching frequency in MHz,
113		when FIVR clock is 38.4MHz.
114
115What:		/sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/fivr_switching_freq_mhz
116Date:		September, 2021
117KernelVersion:	v5.15
118Contact:	linux-acpi@vger.kernel.org
119Description:
120		(RO) Get the FIVR switching control frequency in MHz.
121
122What:		/sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/fivr_switching_fault_status
123Date:		September, 2021
124KernelVersion:	v5.15
125Contact:	linux-acpi@vger.kernel.org
126Description:
127		(RO) Read the FIVR switching frequency control fault status.
128
129What:		/sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/ssc_clock_info
130Date:		September, 2021
131KernelVersion:	v5.15
132Contact:	linux-acpi@vger.kernel.org
133Description:
134		(RO) Presents SSC (spread spectrum clock) information for EMI
135		(Electro magnetic interference) control. This is a bit mask.
136		Bits	Description
137		[7:0]	Sets clock spectrum spread percentage:
138			0x00=0.2% , 0x3F=10%
139			1 LSB = 0.1% increase in spread (for
140			settings 0x01 thru 0x1C)
141			1 LSB = 0.2% increase in spread (for
142			settings 0x1E thru 0x3F)
143		[8]	When set to 1, enables spread
144			spectrum clock
145		[9]	0: Triangle mode. FFC frequency
146			walks around the Fcenter in a linear
147			fashion
148			1: Random walk mode. FFC frequency
149			changes randomly within the SSC
150			(Spread spectrum clock) range
151		[10]	0: No white noise. 1: Add white noise
152			to spread waveform
153		[11]	When 1, future writes are ignored.
154