Re: [PATCH V2 05/15] coresight: tmc: splitting driver in ETB/ETF and ETR components

From	Mathieu Poirier <mathieu.poirier@linaro.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH V2 05/15] coresight: tmc: splitting driver in ETB/ETF and ETR components
Date	2016-04-19 17:20 +0200
Message-ID	<rpFBv-s8-5@gated-at.bofh.it> (permalink)
References	<rnaLv-2Vr-3@gated-at.bofh.it> <rnaLx-2Vr-33@gated-at.bofh.it> <rpCWZ-6Oi-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On 19 April 2016 at 06:20, Suzuki K Poulose <Suzuki.Poulose@arm.com> wrote:
> On 12/04/16 18:54, Mathieu Poirier wrote:
>>
>> The TMC block can operate in 3 modes (ETB, ETF and ETR) and accessed
>> via two interfaces (sysFS and Perf).  That makes 6 mode to cover, which
>> is way too much coupling for a single file.
>>
>> This patch splits the original TMC driver in 2 halves, one for ETB/ETF
>> and another one for ETR mode.  A common core is kept for functionality
>> common to all 3 modes.
>>
>> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
>
>
>
>> diff --git a/drivers/hwtracing/coresight/coresight-tmc.h
>> b/drivers/hwtracing/coresight/coresight-tmc.h
>> index 2d7d52747b4e..b99d4dfc1d0b 100644
>> --- a/drivers/hwtracing/coresight/coresight-tmc.h
>> +++ b/drivers/hwtracing/coresight/coresight-tmc.h
>> @@ -18,6 +18,8 @@
>>   #ifndef _CORESIGHT_TMC_H
>>   #define _CORESIGHT_TMC_H
>>
>> +#include <linux/miscdevice.h>
>> +
>
>
> What was this for ?

For the struct tmc_drvdata::miscdev field, used to generate the sink's
entry under /dev.

Thanks,
Mathieu

>
> Irrespective of that,
>
> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
>

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Re: [PATCH V2 05/15] coresight: tmc: splitting driver in ETB/ETF and  ETR components Suzuki K Poulose <Suzuki.Poulose@arm.com> - 2016-04-19 14:30 +0200
  Re: [PATCH V2 05/15] coresight: tmc: splitting driver in ETB/ETF and  ETR components Mathieu Poirier <mathieu.poirier@linaro.org> - 2016-04-19 17:20 +0200

csiph-web