From: Tabi Timur-B04825 <B04825-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Cc: Guo Shawn-R65073 <r65073-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
"devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org"
<devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org>
Subject: Re: Is there a binding for IORESOURCE_DMA population?
Date: Sat, 16 Jul 2011 12:55:41 +0000 [thread overview]
Message-ID: <4E218A4C.8000603@freescale.com> (raw)
In-Reply-To: <201107161409.46719.arnd-r2nGTMty4D4@public.gmane.org>
Arnd Bergmann wrote:
> Right, this is what I had in mind. I think this is reasonable.
> If you need so many channels, the device tree will be huge already,
> so this doesn't add that much bloat either.
I'm not sure I agree. It seems that specifying nodes for each DMA channel
(virtual or physical) is meaningless because the only property in the node
is the "reg", which is really just a cell-index in disguise.
My vote is to have a node only for the DMA engine, and let the DMA handle
the virtual and physical channels internally.
--
Timur Tabi
Linux kernel developer at Freescale
next prev parent reply other threads:[~2011-07-16 12:55 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-15 16:32 Is there a binding for IORESOURCE_DMA population? Shawn Guo
[not found] ` <20110715163254.GG1840-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2011-07-15 16:45 ` Tabi Timur-B04825
[not found] ` <CAOZdJXVeM4Axf=TC4qKNHyqb=iDoDceGr-xjLNpD20WfL2h46Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-07-15 18:11 ` Arnd Bergmann
[not found] ` <201107152011.41546.arnd-r2nGTMty4D4@public.gmane.org>
2011-07-15 23:49 ` Grant Likely
2011-07-16 7:57 ` Shawn Guo
[not found] ` <20110716075748.GI1840-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2011-07-16 12:09 ` Arnd Bergmann
[not found] ` <201107161409.46719.arnd-r2nGTMty4D4@public.gmane.org>
2011-07-16 12:55 ` Tabi Timur-B04825 [this message]
[not found] ` <4E218A4C.8000603-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2011-07-16 14:40 ` Shawn Guo
[not found] ` <20110716144026.GB2374-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2011-07-16 14:38 ` Tabi Timur-B04825
[not found] ` <4E21A252.4060606-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2011-07-17 7:18 ` Shawn Guo
2011-07-16 19:16 ` Rob Herring
[not found] ` <4E21E398.4060808-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-07-17 7:30 ` Shawn Guo
2011-07-16 20:18 ` Tabi Timur-B04825
[not found] ` <4E21F22C.3020804-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2011-07-16 20:44 ` Arnd Bergmann
[not found] ` <201107162244.47740.arnd-r2nGTMty4D4@public.gmane.org>
2011-07-16 20:54 ` Tabi Timur-B04825
[not found] ` <4E21FA7C.2000602-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2011-07-17 7:38 ` Shawn Guo
2011-07-16 14:34 ` Shawn Guo
[not found] ` <20110716143456.GA2374-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2011-07-16 14:43 ` Tabi Timur-B04825
[not found] ` <4E21A392.3010608-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2011-07-17 7:41 ` Shawn Guo
[not found] ` <20110717074159.GF2374-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2011-07-17 13:41 ` Tabi Timur-B04825
[not found] ` <4E22E66D.5010809-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2011-07-17 14:28 ` Shawn Guo
[not found] ` <20110717142838.GI2374-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2011-07-17 14:57 ` Tabi Timur-B04825
[not found] ` <4E22F867.5090707-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2011-07-17 15:47 ` Shawn Guo
[not found] ` <20110717154730.GK2374-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2011-07-17 16:04 ` Tabi Timur-B04825
[not found] ` <4E230802.9030805-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2011-07-19 15:16 ` Arnd Bergmann
[not found] ` <201107191716.56203.arnd-r2nGTMty4D4@public.gmane.org>
2011-07-20 2:53 ` Shawn Guo
2011-07-17 15:04 ` Arnd Bergmann
[not found] ` <201107171704.17779.arnd-r2nGTMty4D4@public.gmane.org>
2011-07-17 15:41 ` Shawn Guo
2011-07-18 4:39 ` Grant Likely
[not found] ` <20110718043940.GD15023-e0URQFbLeQY2iJbIjFUEsiwD8/FfD2ys@public.gmane.org>
2011-07-18 11:19 ` Tabi Timur-B04825
2011-07-16 15:19 ` Arnd Bergmann
[not found] ` <201107161719.32543.arnd-r2nGTMty4D4@public.gmane.org>
2011-07-16 15:27 ` Tabi Timur-B04825
[not found] ` <4E21ADC5.5010205-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2011-07-16 17:33 ` Arnd Bergmann
2011-07-17 8:02 ` Shawn Guo
2011-07-17 7:59 ` Shawn Guo
2011-07-18 4:34 ` Grant Likely
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=4E218A4C.8000603@freescale.com \
--to=b04825-kzfg59tc24xl57midrcfdg@public.gmane.org \
--cc=arnd-r2nGTMty4D4@public.gmane.org \
--cc=devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org \
--cc=r65073-KZfg59tc24xl57MIdRCFDg@public.gmane.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.