From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Vinod Koul <vkoul@kernel.org>, Viresh Kumar <vireshk@kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
Serge Semin <fancer.lancer@gmail.com>,
Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Arnd Bergmann <arnd@arndb.de>, Rob Herring <robh+dt@kernel.org>,
linux-mips@vger.kernel.org, devicetree@vger.kernel.org,
dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v7 05/11] dmaengine: Introduce DMA-device device_caps callback
Date: Fri, 10 Jul 2020 11:45:03 +0300 [thread overview]
Message-ID: <20200710084503.GE3703480@smile.fi.intel.com> (raw)
In-Reply-To: <20200709224550.15539-6-Sergey.Semin@baikalelectronics.ru>
On Fri, Jul 10, 2020 at 01:45:44AM +0300, Serge Semin wrote:
> There are DMA devices (like ours version of Synopsys DW DMAC) which have
> DMA capabilities non-uniformly redistributed between the device channels.
> In order to provide a way of exposing the channel-specific parameters to
> the DMA engine consumers, we introduce a new DMA-device callback. In case
> if provided it gets called from the dma_get_slave_caps() method and is
> able to override the generic DMA-device capabilities.
In light of recent developments consider not to add 'slave' and a such words to the kernel.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2020-07-10 8:45 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-09 22:45 [PATCH RESEND v7 00/11] dmaengine: dw: Take Baikal-T1 SoC DW DMAC peculiarities into account Serge Semin
2020-07-09 22:45 ` [PATCH v7 01/11] dt-bindings: dma: dw: Convert DW DMAC to DT binding Serge Semin
2020-07-09 22:45 ` [PATCH v7 02/11] dt-bindings: dma: dw: Add max burst transaction length property Serge Semin
2020-07-09 22:45 ` [PATCH v7 03/11] dmaengine: Introduce min burst length capability Serge Semin
2020-07-09 22:45 ` [PATCH v7 04/11] dmaengine: Introduce max SG list entries capability Serge Semin
2020-07-10 8:31 ` Peter Ujfalusi
2020-07-10 9:27 ` Serge Semin
2020-07-10 11:51 ` Peter Ujfalusi
2020-07-10 16:14 ` Serge Semin
2020-07-15 11:13 ` Vinod Koul
2020-07-15 17:08 ` Serge Semin
2020-07-17 8:14 ` Vinod Koul
2020-07-17 12:36 ` Serge Semin
2020-07-09 22:45 ` [PATCH v7 05/11] dmaengine: Introduce DMA-device device_caps callback Serge Semin
2020-07-10 8:45 ` Andy Shevchenko [this message]
2020-07-10 9:38 ` Serge Semin
2020-07-13 6:51 ` Vinod Koul
2020-07-13 20:13 ` Serge Semin
2020-07-13 20:55 ` Dave Jiang
2020-07-14 16:08 ` Vinod Koul
2020-07-14 16:18 ` Dave Jiang
2020-07-14 16:29 ` Serge Semin
2020-07-14 16:49 ` Dave Jiang
2020-07-09 22:45 ` [PATCH v7 06/11] dmaengine: dw: Take HC_LLP flag into account for noLLP auto-config Serge Semin
2020-07-09 22:45 ` [PATCH v7 07/11] dmaengine: dw: Set DMA device max segment size parameter Serge Semin
2020-07-09 22:45 ` [PATCH v7 08/11] dmaengine: dw: Add dummy device_caps callback Serge Semin
2020-07-10 8:51 ` Andy Shevchenko
2020-07-10 8:52 ` Andy Shevchenko
2020-07-10 9:45 ` Serge Semin
2020-07-15 12:01 ` Vinod Koul
2020-07-09 22:45 ` [PATCH v7 09/11] dmaengine: dw: Initialize min and max burst DMA device capability Serge Semin
2020-07-09 22:45 ` [PATCH v7 10/11] dmaengine: dw: Introduce max burst length hw config Serge Semin
2020-07-09 22:45 ` [PATCH v7 11/11] dmaengine: dw: Initialize max_sg_nents capability Serge Semin
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=20200710084503.GE3703480@smile.fi.intel.com \
--to=andriy.shevchenko@linux.intel.com \
--cc=Alexey.Malahov@baikalelectronics.ru \
--cc=Sergey.Semin@baikalelectronics.ru \
--cc=arnd@arndb.de \
--cc=dan.j.williams@intel.com \
--cc=devicetree@vger.kernel.org \
--cc=dmaengine@vger.kernel.org \
--cc=fancer.lancer@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@vger.kernel.org \
--cc=robh+dt@kernel.org \
--cc=tsbogend@alpha.franken.de \
--cc=vireshk@kernel.org \
--cc=vkoul@kernel.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).