1*4882a593SmuzhiyunKernel driver scpi-hwmon 2*4882a593Smuzhiyun======================== 3*4882a593Smuzhiyun 4*4882a593SmuzhiyunSupported chips: 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun * Chips based on ARM System Control Processor Interface 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun Addresses scanned: - 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun Datasheet: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0922b/index.html 11*4882a593Smuzhiyun 12*4882a593SmuzhiyunAuthor: Punit Agrawal <punit.agrawal@arm.com> 13*4882a593Smuzhiyun 14*4882a593SmuzhiyunDescription 15*4882a593Smuzhiyun----------- 16*4882a593Smuzhiyun 17*4882a593SmuzhiyunThis driver supports hardware monitoring for SoC's based on the ARM 18*4882a593SmuzhiyunSystem Control Processor (SCP) implementing the System Control 19*4882a593SmuzhiyunProcessor Interface (SCPI). The following sensor types are supported 20*4882a593Smuzhiyunby the SCP: 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun * temperature 23*4882a593Smuzhiyun * voltage 24*4882a593Smuzhiyun * current 25*4882a593Smuzhiyun * power 26*4882a593Smuzhiyun 27*4882a593SmuzhiyunThe SCP interface provides an API to query the available sensors and 28*4882a593Smuzhiyuntheir values which are then exported to userspace by this driver. 29*4882a593Smuzhiyun 30*4882a593SmuzhiyunUsage Notes 31*4882a593Smuzhiyun----------- 32*4882a593Smuzhiyun 33*4882a593SmuzhiyunThe driver relies on device tree node to indicate the presence of SCPI 34*4882a593Smuzhiyunsupport in the kernel. See 35*4882a593SmuzhiyunDocumentation/devicetree/bindings/arm/arm,scpi.txt for details of the 36*4882a593Smuzhiyundevicetree node. 37