xref: /linux/Documentation/hwmon/scpi-hwmon.rst (revision b8d312aa075f33282565467662c4628dae0a2aff)
1Kernel driver scpi-hwmon
2========================
3
4Supported chips:
5
6 * Chips based on ARM System Control Processor Interface
7
8   Addresses scanned: -
9
10   Datasheet: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0922b/index.html
11
12Author: Punit Agrawal <punit.agrawal@arm.com>
13
14Description
15-----------
16
17This driver supports hardware monitoring for SoC's based on the ARM
18System Control Processor (SCP) implementing the System Control
19Processor Interface (SCPI). The following sensor types are supported
20by the SCP:
21
22  * temperature
23  * voltage
24  * current
25  * power
26
27The SCP interface provides an API to query the available sensors and
28their values which are then exported to userspace by this driver.
29
30Usage Notes
31-----------
32
33The driver relies on device tree node to indicate the presence of SCPI
34support in the kernel. See
35Documentation/devicetree/bindings/arm/arm,scpi.txt for details of the
36devicetree node.
37