summaryrefslogblamecommitdiff
path: root/Documentation/hwmon/xgene-hwmon
blob: 6ec50ed7cc8ff7a60e78f3a95a6393abfb50eb53 (plain) (tree) 
ed42cfa881e1 ^






























1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30






























                                                                                 
Kernel driver xgene-hwmon
========================

Supported chips:
 * APM X-Gene SoC

Description
-----------

This driver adds hardware temperature and power reading support for
APM X-Gene SoC using the mailbox communication interface.
For device tree, it is the standard DT mailbox.
For ACPI, it is the PCC mailbox.

The following sensors are supported

  * Temperature
    - SoC on-die temperature in milli-degree C
    - Alarm when high/over temperature occurs
  * Power
    - CPU power in uW
    - IO power in uW

sysfs-Interface
---------------

temp0_input - SoC on-die temperature (milli-degree C)
temp0_critical_alarm - An 1 would indicates on-die temperature exceeded threshold
power0_input - CPU power in (uW)
power1_input - IO power in (uW)