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From: "Måns Rullgård" <mans@mansr.com>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Viresh Kumar <vireshk@kernel.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Vinod Koul <vinod.koul@intel.com>,
	dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/2] dmaengine: dw: fix cyclic transfer callbacks
Date: Mon, 11 Jan 2016 14:14:00 +0000	[thread overview]
Message-ID: <yw1x37u4xkyf.fsf@unicorn.mansr.com> (raw)
In-Reply-To: <20160111141048.GB1084@ubuntu> (Viresh Kumar's message of "Mon, 11 Jan 2016 19:40:48 +0530")

Viresh Kumar <viresh.kumar@linaro.org> writes:

> On 11-01-16, 13:04, Mans Rullgard wrote:
>> Cyclic transfer callbacks rely on block completion interrupts which were
>> disabled in commit ff7b05f29fd4 ("dmaengine/dw_dmac: Don't handle block
>> interrupts").  This re-enables block interrupts so the cyclic callbacks
>> can work.  Other transfer types are not affected as they set the INT_EN
>> bit only on the last block.
>> 
>> Fixes: ff7b05f29fd4 ("dmaengine/dw_dmac: Don't handle block interrupts")
>> Signed-off-by: Mans Rullgard <mans@mansr.com>
>> ---
>> Changes:
>> - new patch
>> ---
>>  drivers/dma/dw/core.c | 21 +++++++++++++++------
>>  1 file changed, 15 insertions(+), 6 deletions(-)
>
> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
>
> BTW, Shouldn't you mark these for stable trees as well ? :)

Probably.  Some maintainers prefer to do that themselves, but apparently
you're not one of them.

-- 
Måns Rullgård

  reply	other threads:[~2016-01-11 14:14 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-11 13:04 [PATCH v2 0/2] dmaengine: dw: fix cyclic transfers Mans Rullgard
2016-01-11 13:04 ` [PATCH v2 1/2] dmaengine: dw: fix cyclic transfer setup Mans Rullgard
2016-01-11 14:08   ` Viresh Kumar
2016-01-11 13:04 ` [PATCH v2 2/2] dmaengine: dw: fix cyclic transfer callbacks Mans Rullgard
2016-01-11 14:10   ` Viresh Kumar
2016-01-11 14:14     ` Måns Rullgård [this message]
2016-01-11 16:08       ` Viresh Kumar
2016-01-14  5:44         ` Vinod Koul
2016-01-11 15:04   ` Andy Shevchenko
2016-01-11 15:09     ` Måns Rullgård
2016-01-11 15:17       ` Andy Shevchenko
2016-01-11 15:22         ` Måns Rullgård
2016-01-11 15:24           ` Andy Shevchenko
2016-01-14  5:52 ` [PATCH v2 0/2] dmaengine: dw: fix cyclic transfers Vinod Koul

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