All of lore.kernel.org
 help / color / mirror / Atom feed
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Serge Semin <fancer.lancer@gmail.com>,
	Vinod Koul <vkoul@kernel.org>, Viresh Kumar <vireshk@kernel.org>,
	Dan Williams <dan.j.williams@intel.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 v4 09/11] dmaengine: dw: Initialize min_burst capability
Date: Fri, 29 May 2020 13:50:09 +0300	[thread overview]
Message-ID: <20200529105009.GH1634618@smile.fi.intel.com> (raw)
In-Reply-To: <20200529104119.qrqoptp5iz5hs56r@mobilestation>

On Fri, May 29, 2020 at 01:41:19PM +0300, Serge Semin wrote:
> On Fri, May 29, 2020 at 01:29:02PM +0300, Andy Shevchenko wrote:
> > On Fri, May 29, 2020 at 01:25:15PM +0300, Andy Shevchenko wrote:
> > > On Fri, May 29, 2020 at 01:23:59AM +0300, Serge Semin wrote:

...

> > > >  	/* DMA capabilities */
> > > > +	dw->dma.min_burst = 1;
> > > 
> > > Perhaps then relaxed maximum, like
> > > 
> > > 	dw->dma.max_burst = 256;
> > > 
> > > (channels will update this)
> > > 
> > > ?
> 
> > And forgot to mention that perhaps we need a definitions for both.
> 
> By "definitions for both" do you mean a macro with corresponding parameter
> definition like it's done for the max burst length in the next patch?
> Something like this:
> --- include/linux/platform_data/dma-dw.h
> +++ include/linux/platform_data/dma-dw.h
> +#define DW_DMA_MIN_BURST	1
> +#define DW_DMA_MAX_BURST	256
> 
> ?

Yes!

-- 
With Best Regards,
Andy Shevchenko



  reply	other threads:[~2020-05-29 10:50 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-28 22:23 [PATCH v4 00/11] dmaengine: dw: Take Baikal-T1 SoC DW DMAC peculiarities into account Serge Semin
2020-05-28 22:23 ` [PATCH v4 01/11] dt-bindings: dma: dw: Convert DW DMAC to DT binding Serge Semin
2020-05-28 22:23 ` [PATCH v4 02/11] dt-bindings: dma: dw: Add max burst transaction length property Serge Semin
2020-05-28 22:23 ` [PATCH v4 03/11] dmaengine: Introduce min burst length capability Serge Semin
2020-05-29 12:07   ` Andy Shevchenko
2020-05-28 22:23 ` [PATCH v4 04/11] dmaengine: Introduce max SG list entries capability Serge Semin
2020-05-28 22:23 ` [PATCH v4 05/11] dmaengine: Introduce DMA-device device_caps callback Serge Semin
2020-05-29 12:12   ` Andy Shevchenko
2020-05-29 14:07     ` Serge Semin
2020-05-28 22:23 ` [PATCH v4 06/11] dmaengine: dw: Take HC_LLP flag into account for noLLP auto-config Serge Semin
2020-05-28 22:23 ` [PATCH v4 07/11] dmaengine: dw: Set DMA device max segment size parameter Serge Semin
2020-05-29 12:18   ` Andy Shevchenko
2020-05-28 22:23 ` [PATCH v4 08/11] dmaengine: dw: Add dummy device_caps callback Serge Semin
2020-05-29 12:19   ` Andy Shevchenko
2020-05-28 22:23 ` [PATCH v4 09/11] dmaengine: dw: Initialize min_burst capability Serge Semin
2020-05-29 10:25   ` Andy Shevchenko
2020-05-29 10:29     ` Andy Shevchenko
2020-05-29 10:41       ` Serge Semin
2020-05-29 10:50         ` Andy Shevchenko [this message]
2020-05-29 10:51           ` Serge Semin
2020-05-28 22:24 ` [PATCH v4 10/11] dmaengine: dw: Introduce max burst length hw config Serge Semin
2020-05-29 10:27   ` Andy Shevchenko
2020-05-28 22:24 ` [PATCH v4 11/11] dmaengine: dw: Initialize max_sg_nents capability Serge Semin
2020-05-29 10:27   ` Andy Shevchenko

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=20200529105009.GH1634618@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 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.