From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: How to handle named resources with DT?
Date: Tue, 9 Aug 2011 20:51:14 +0100 [thread overview]
Message-ID: <20110809195114.GB14281@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <4E40FC88.5090403@ti.com>
On Tue, Aug 09, 2011 at 11:23:20AM +0200, Cousson, Benoit wrote:
> Hi Grant,
>
> Trying to bind hwmod informations with DT, I'm facing a little limitation.
> A bunch of drivers are using the platform_get_resource_byname, so the
> name for the resource is needed.
>
> The name is used so far for IORESOURCE_MEM, IORESOURCE_IRQ and
> IORESOURCE_DMA types of resources.
>
> Do you have any plan to add that, or do you have any clean way to avoid
> that without having to use the resource index?
Named resources are evil. You only have to look at /proc/iomem to see
why that's the case. Here's an example:
b7a01000-b7a01003 : set
b7a01000-b7a01003 : set
b7a01004-b7a01007 : dat
b7a01004-b7a01007 : dat
b7a01008-b7a0100b : dirout
b7a01008-b7a0100b : dirout
b7a01020-b7a01023 : set
b7a01020-b7a01023 : set
b7a01024-b7a01027 : dat
b7a01024-b7a01027 : dat
b7a01028-b7a0102b : dirout
b7a01028-b7a0102b : dirout
b7a01040-b7a01043 : set
b7a01040-b7a01043 : set
b7a01044-b7a01047 : dat
b7a01044-b7a01047 : dat
b7a01048-b7a0104b : dirout
b7a01048-b7a0104b : dirout
b7a01060-b7a01063 : set
b7a01060-b7a01063 : set
b7a01064-b7a01067 : dat
b7a01064-b7a01067 : dat
b7a01068-b7a0106b : dirout
b7a01068-b7a0106b : dirout
b7a01080-b7a01083 : set
b7a01080-b7a01083 : set
b7a01084-b7a01087 : dat
b7a01084-b7a01087 : dat
b7a01088-b7a0108b : dirout
b7a01088-b7a0108b : dirout
How very informative. Not. So what device owns those? Who knows,
that's lost by the crappy named resource stuff.
next prev parent reply other threads:[~2011-08-09 19:51 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-09 9:23 How to handle named resources with DT? Cousson, Benoit
2011-08-09 16:29 ` G, Manjunath Kondaiah
2011-08-09 16:57 ` Cousson, Benoit
2011-08-09 17:23 ` Grant Likely
2011-08-09 17:47 ` Cousson, Benoit
2011-08-09 17:52 ` Matt Porter
2011-08-09 18:26 ` Scott Wood
2011-08-09 20:57 ` Grant Likely
2011-08-09 21:08 ` Cousson, Benoit
2011-08-09 21:17 ` Grant Likely
2011-08-09 21:44 ` Cousson, Benoit
2011-08-09 21:49 ` Grant Likely
2011-08-09 21:53 ` Cousson, Benoit
2011-08-10 1:52 ` David Gibson
2011-08-10 7:11 ` Paul Walmsley
2011-08-10 15:01 ` Cousson, Benoit
2011-08-10 15:18 ` Scott Wood
2011-08-10 15:21 ` Cousson, Benoit
2011-08-10 19:22 ` Grant Likely
2011-08-10 19:57 ` David Brown
2011-08-10 20:12 ` Grant Likely
2011-08-11 12:28 ` Cousson, Benoit
2011-08-12 3:02 ` David Gibson
2011-08-12 8:14 ` Cousson, Benoit
2011-08-12 8:41 ` Felipe Balbi
2011-08-12 14:35 ` Arnd Bergmann
2011-08-12 15:09 ` Cousson, Benoit
2011-08-12 17:21 ` Grant Likely
2011-08-24 19:15 ` Kevin Hilman
2011-08-24 23:16 ` Felipe Balbi
2011-08-25 10:28 ` Russell King - ARM Linux
2011-08-25 15:05 ` Arnd Bergmann
2011-08-25 18:16 ` Kevin Hilman
2011-08-25 21:02 ` Arnd Bergmann
2011-08-26 11:01 ` Removing platform_get_resource_byname() (was Re: How to handle named resources with DT?) Paul Walmsley
2011-08-26 4:12 ` How to handle named resources with DT? David Gibson
2011-08-26 10:58 ` Arnd Bergmann
2011-08-26 13:06 ` David Gibson
2011-08-26 15:35 ` Arnd Bergmann
2011-08-26 15:41 ` Arnd Bergmann
2011-08-27 14:37 ` David Gibson
2011-08-27 18:13 ` Arnd Bergmann
2011-08-27 19:31 ` Paul Walmsley
2011-08-29 17:16 ` Arnd Bergmann
2011-08-28 8:39 ` David Gibson
2011-08-28 23:06 ` Paul Walmsley
2011-08-28 23:43 ` Russell King - ARM Linux
2011-08-29 1:57 ` Paul Walmsley
2011-08-29 17:18 ` Arnd Bergmann
2011-08-27 21:47 ` Paul Walmsley
2011-08-29 21:54 ` Mark Brown
2011-08-26 14:13 ` Cousson, Benoit
2011-08-30 2:29 ` David Gibson
2011-08-30 9:27 ` Felipe Balbi
2011-08-31 2:32 ` David Gibson
2011-08-27 20:00 ` Paul Walmsley
2011-08-25 17:38 ` Cousson, Benoit
2011-08-09 21:52 ` Scott Wood
2011-08-09 20:55 ` Grant Likely
2011-08-09 21:06 ` Cousson, Benoit
2011-08-09 21:16 ` Grant Likely
2011-08-09 21:37 ` Cousson, Benoit
2011-08-12 4:10 ` Shawn Guo
2011-08-12 8:56 ` Cousson, Benoit
2011-08-12 11:47 ` Shawn Guo
2011-08-12 14:40 ` Arnd Bergmann
2011-08-10 1:29 ` David Gibson
2011-08-10 6:08 ` Paul Walmsley
2011-08-09 19:51 ` Russell King - ARM Linux [this message]
2011-08-09 20:59 ` Cousson, Benoit
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=20110809195114.GB14281@n2100.arm.linux.org.uk \
--to=linux@arm.linux.org.uk \
--cc=linux-arm-kernel@lists.infradead.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).