[PATCH] drivers: CCI: add ARM CCI PMU support

Kumar Gala galak at codeaurora.org
Wed Aug 14 17:09:16 EDT 2013


On Aug 14, 2013, at 4:06 PM, Stephen Warren wrote:

> On 07/23/2013 03:19 AM, Punit Agrawal wrote:
>> The CCI PMU can profile bus transactions at the master and slave
>> interfaces of the CCI. The PMU can be used to observe an aggregated view
>> of the bus traffic between the various components connected to the CCI.
>> 
>> Extend the existing CCI driver to support the PMU by registering a perf
>> backend for it.
>> 
>> Document the device tree binding to describe the CCI PMU.
> 
>> diff --git a/Documentation/devicetree/bindings/arm/cci.txt b/Documentation/devicetree/bindings/arm/cci.txt
> 
>> +	- CCI PMU node
>> +
>> +		Node name must be "pmu".
> 
> I don't think the binding should require the node to have a particular
> name; node names shouldn't be interpret/used/relied-upon by drivers.

While I agree with that, we should be aiming for some convention and consistency with node names.

- k

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