linux-kernel - Re: [PATCH v2] coresight-stm: adding driver for CoreSight STM component

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Message-ID: <CANLsYkz6c8rN21C_JDaarJCEyaNb6C3VeqBH=_y_ERBiNLtPMw@mail.gmail.com>
Date:	Thu, 26 Feb 2015 07:22:45 -0700
From:	Mathieu Poirier <mathieu.poirier@...aro.org>
To:	Shawn Guo <shawn.guo@...aro.org>
Cc:	Jon Corbet <corbet@....net>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>, linux-api@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-doc@...r.kernel.org
Subject: Re: [PATCH v2] coresight-stm: adding driver for CoreSight STM component

On 25 February 2015 at 22:53, Shawn Guo <shawn.guo@...aro.org> wrote:
> On Wed, Feb 25, 2015 at 04:32:32PM -0700, Mathieu Poirier wrote:
>> diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-stm b/Documentation/ABI/testing/sysfs-bus-coresight-devices-stm
>> new file mode 100644
>> index 000000000000..3ddb676831ab
>> --- /dev/null
>> +++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-stm
>> @@ -0,0 +1,62 @@
>> +What:                /sys/bus/coresight/devices/<memory_map>.stm/enable_source
>> +Date:                February 2015
>> +KernelVersion:       3.20
>
> A random comment - there will never be a v3.20 kernel.

That's pretty funny!  That part was obviously minted before there was
even an hint of moving to 4.0.  Thanks for pointing it out.

>
> Shawn
>
>> +Contact:     Mathieu Poirier <mathieu.poirier@...aro.org>
>> +Description: (RW) Enable/disable tracing on this specific trace macrocell.
>> +             Enabling the trace macrocell implies it has been configured
>> +             properly and a sink has been identidifed for it.  The path
>> +             of coresight components linking the source to the sink is
>> +             configured and managed automatically by the coresight framework.
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