projects / linux-2.6-block.git / blame
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|---|---|---|
| ea98b29a PA |
1 | Kernel driver scpi-hwmon |
| 2 | ======================== | |
| 3 | ||
| 4 | Supported chips: | |
| b04f2f7d | 5 | |
| ea98b29a | 6 | * Chips based on ARM System Control Processor Interface |
| b04f2f7d | 7 | |
| ea98b29a | 8 | Addresses scanned: - |
| b04f2f7d | 9 | |
| ea98b29a PA |
10 | Datasheet: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0922b/index.html |
| 11 | ||
| 12 | Author: Punit Agrawal <punit.agrawal@arm.com> | |
| 13 | ||
| 14 | Description | |
| 15 | ----------- | |
| 16 | ||
| 17 | This driver supports hardware monitoring for SoC's based on the ARM | |
| 18 | System Control Processor (SCP) implementing the System Control | |
| 19 | Processor Interface (SCPI). The following sensor types are supported | |
| b04f2f7d | 20 | by the SCP: |
| ea98b29a PA |
21 | |
| 22 | * temperature | |
| 23 | * voltage | |
| 24 | * current | |
| 25 | * power | |
| 26 | ||
| 27 | The SCP interface provides an API to query the available sensors and | |
| 28 | their values which are then exported to userspace by this driver. | |
| 29 | ||
| 30 | Usage Notes | |
| 31 | ----------- | |
| 32 | ||
| 33 | The driver relies on device tree node to indicate the presence of SCPI | |
| 34 | support in the kernel. See | |
| 35 | Documentation/devicetree/bindings/arm/arm,scpi.txt for details of the | |
| b04f2f7d | 36 | devicetree node. |