All of lore.kernel.org
 help / color / mirror / Atom feed
From: Baolin Wang <baolin.wang@linaro.org>
To: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>,
	Eric Long <eric.long@spreadtrum.com>,
	Mark Brown <broonie@kernel.org>,
	dmaengine@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: [4/5] dmaengine: sprd: Add Spreadtrum DMA configuration
Date: Tue, 17 Apr 2018 14:06:54 +0800	[thread overview]
Message-ID: <CAMz4ku+uru+53BR9JaqQQ+ik30-8o5By-Ai2jA_g-MYF0iKpCA@mail.gmail.com> (raw)

On 16 April 2018 at 23:35, Vinod Koul <vinod.koul@intel.com> wrote:
> On Mon, Apr 16, 2018 at 02:32:05PM +0800, Baolin Wang wrote:
>
>> >> Beside the general configuration, our audio driver will configure the
>> >> fragment length, block length, maybe transaction length, and they must
>> >> specify the request type and interrupt type, these are what we want to
>> >> export for users.
>> >
>> > As I said before, you need to derive fragment, block or transaction from
>>
>> I am sorry I did not make things clear here. What I mean is not only
>> link list mode(prep_cyclic), but also other modes (prep_slave,
>> prep_interleaved ...), users still need to configure the fragment
>> length, block length or transaction length according to their
>> requirements.
>
> Other modes are similar, they also use the parameters programmed from
> dma_slave_config. Pls see other driver examples. IIRC dw dma has
> similar capabilities but not all are exposed to user and driver configures.

I'll check the dw dma. Really thanks for your help :)

WARNING: multiple messages have this Message-ID (diff)
From: Baolin Wang <baolin.wang@linaro.org>
To: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>,
	Eric Long <eric.long@spreadtrum.com>,
	Mark Brown <broonie@kernel.org>,
	dmaengine@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 4/5] dmaengine: sprd: Add Spreadtrum DMA configuration
Date: Tue, 17 Apr 2018 14:06:54 +0800	[thread overview]
Message-ID: <CAMz4ku+uru+53BR9JaqQQ+ik30-8o5By-Ai2jA_g-MYF0iKpCA@mail.gmail.com> (raw)
In-Reply-To: <20180416153501.GQ6014@localhost>

On 16 April 2018 at 23:35, Vinod Koul <vinod.koul@intel.com> wrote:
> On Mon, Apr 16, 2018 at 02:32:05PM +0800, Baolin Wang wrote:
>
>> >> Beside the general configuration, our audio driver will configure the
>> >> fragment length, block length, maybe transaction length, and they must
>> >> specify the request type and interrupt type, these are what we want to
>> >> export for users.
>> >
>> > As I said before, you need to derive fragment, block or transaction from
>>
>> I am sorry I did not make things clear here. What I mean is not only
>> link list mode(prep_cyclic), but also other modes (prep_slave,
>> prep_interleaved ...), users still need to configure the fragment
>> length, block length or transaction length according to their
>> requirements.
>
> Other modes are similar, they also use the parameters programmed from
> dma_slave_config. Pls see other driver examples. IIRC dw dma has
> similar capabilities but not all are exposed to user and driver configures.

I'll check the dw dma. Really thanks for your help :)

-- 
Baolin.wang
Best Regards

             reply	other threads:[~2018-04-17  6:06 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-17  6:06 Baolin Wang [this message]
2018-04-17  6:06 ` [PATCH 4/5] dmaengine: sprd: Add Spreadtrum DMA configuration Baolin Wang
  -- strict thread matches above, loose matches on Subject: below --
2018-04-18  5:40 [5/5] dmaengine: sprd: Add 'device_config' and 'device_prep_slave_sg' interfaces Baolin Wang
2018-04-18  5:40 ` [PATCH 5/5] " Baolin Wang
2018-04-17 10:45 [5/5] " Lars-Peter Clausen
2018-04-17 10:45 ` [PATCH 5/5] " Lars-Peter Clausen
2018-04-16 15:35 [4/5] dmaengine: sprd: Add Spreadtrum DMA configuration Vinod Koul
2018-04-16 15:35 ` [PATCH 4/5] " Vinod Koul
2018-04-16  6:32 [4/5] " Baolin Wang
2018-04-16  6:32 ` [PATCH 4/5] " Baolin Wang
2018-04-16  3:58 [4/5] " Vinod Koul
2018-04-16  3:58 ` [PATCH 4/5] " Vinod Koul
2018-04-13 10:48 [4/5] " Baolin Wang
2018-04-13 10:48 ` [PATCH 4/5] " Baolin Wang
2018-04-13 10:11 [4/5] " Vinod Koul
2018-04-13 10:11 ` [PATCH 4/5] " Vinod Koul
2018-04-13  6:41 [4/5] " Baolin Wang
2018-04-13  6:41 ` [PATCH 4/5] " Baolin Wang
2018-04-13  6:36 [4/5] " Vinod Koul
2018-04-13  6:36 ` [PATCH 4/5] " Vinod Koul
2018-04-13  6:17 [4/5] " Baolin Wang
2018-04-13  6:17 ` [PATCH 4/5] " Baolin Wang
2018-04-13  5:44 [4/5] " Baolin Wang
2018-04-13  5:44 ` [PATCH 4/5] " Baolin Wang
2018-04-13  3:43 [4/5] " Vinod Koul
2018-04-13  3:43 ` [PATCH 4/5] " Vinod Koul
2018-04-13  3:39 [4/5] " Vinod Koul
2018-04-13  3:39 ` [PATCH 4/5] " Vinod Koul
2018-04-12 11:36 [4/5] " Baolin Wang
2018-04-12 11:36 ` [PATCH 4/5] " Baolin Wang
2018-04-12 11:30 [4/5] " Baolin Wang
2018-04-12 11:30 ` [PATCH 4/5] " Baolin Wang
2018-04-12  9:37 [4/5] " Vinod Koul
2018-04-12  9:37 ` [PATCH 4/5] " Vinod Koul
2018-04-11 12:13 [4/5] " Baolin Wang
2018-04-11 12:13 ` [PATCH 4/5] " Baolin Wang
2018-04-11 10:51 [5/5] dmaengine: sprd: Add 'device_config' and 'device_prep_slave_sg' interfaces Baolin Wang
2018-04-11 10:51 ` [PATCH 5/5] " Baolin Wang
2018-04-11 10:49 [1/5] dmaengine: sprd: Define the DMA transfer step type Baolin Wang
2018-04-11 10:49 ` [PATCH 1/5] " Baolin Wang
2018-04-11  9:40 [5/5] dmaengine: sprd: Add 'device_config' and 'device_prep_slave_sg' interfaces Vinod Koul
2018-04-11  9:40 ` [PATCH 5/5] " Vinod Koul
2018-04-11  9:36 [4/5] dmaengine: sprd: Add Spreadtrum DMA configuration Vinod Koul
2018-04-11  9:36 ` [PATCH 4/5] " Vinod Koul
2018-04-11  9:24 [1/5] dmaengine: sprd: Define the DMA transfer step type Vinod Koul
2018-04-11  9:24 ` [PATCH 1/5] " Vinod Koul
2018-04-10  7:46 [5/5] dmaengine: sprd: Add 'device_config' and 'device_prep_slave_sg' interfaces Baolin Wang
2018-04-10  7:46 ` [PATCH 5/5] " Baolin Wang
2018-04-10  7:46 [4/5] dmaengine: sprd: Add Spreadtrum DMA configuration Baolin Wang
2018-04-10  7:46 ` [PATCH 4/5] " Baolin Wang
2018-04-10  7:46 [3/5] dmaengine: sprd: Move DMA request mode and interrupt type into head file Baolin Wang
2018-04-10  7:46 ` [PATCH 3/5] " Baolin Wang
2018-04-10  7:46 [2/5] dmaengine: sprd: Define the DMA data width type Baolin Wang
2018-04-10  7:46 ` [PATCH 2/5] " Baolin Wang
2018-04-10  7:46 [1/5] dmaengine: sprd: Define the DMA transfer step type Baolin Wang
2018-04-10  7:46 ` [PATCH 1/5] " Baolin Wang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAMz4ku+uru+53BR9JaqQQ+ik30-8o5By-Ai2jA_g-MYF0iKpCA@mail.gmail.com \
    --to=baolin.wang@linaro.org \
    --cc=broonie@kernel.org \
    --cc=dan.j.williams@intel.com \
    --cc=dmaengine@vger.kernel.org \
    --cc=eric.long@spreadtrum.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=vinod.koul@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.