From: Olof Johansson <olof@lixom.net>
To: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: linuxppc-dev@ozlabs.org, Timur Tabi <timur@freescale.com>
Subject: Re: [PATCH 4/4] [POWERPC] fsl_spi_init and users: stop using device_type = "spi"
Date: Wed, 19 Dec 2007 17:50:37 -0600 [thread overview]
Message-ID: <20071219235037.GA2309@lixom.net> (raw)
In-Reply-To: <20071219211250.GA21416@localhost.localdomain>
On Thu, Dec 20, 2007 at 12:12:50AM +0300, Anton Vorontsov wrote:
> I though about it. Is your device tree source out of tree? Otherwise
> it should be trivial to upgrade the dtb, instead of producing cruft in
> the kernel. I vote for less legacy code, but lets see what others will
> say. So far count is 1:1. ;-)
It's not just that. kexec:ing a new kernel from an older that has the
old device tree breaks if you don't consider older device trees. Or you
might have an old firmware with a flashed device tree that you need to
keep compatibility with.
You should either fix up the "broken" (not latest and greatest) device
trees in the wrapper before using them, or make sure that your code is
still compatible with the old trees.
The fact that the device tree source code is distributed with the kernel
isn't an excuse to break backwards compatibility with older versions.
-Olof
next prev parent reply other threads:[~2007-12-19 23:44 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-19 20:34 [PATCH 0/4] device_type/compatible cleanups Anton Vorontsov
2007-12-19 20:34 ` Scott Wood
2007-12-19 20:48 ` Anton Vorontsov
2007-12-19 21:07 ` Scott Wood
2007-12-19 20:37 ` [PATCH 1/4] [POWERPC] qe_lib and users: get rid of device_type and model Anton Vorontsov
2007-12-19 20:37 ` [PATCH 2/4] [POWERPC][NET] ucc_geth_mii and users: get rid of device_type Anton Vorontsov
2007-12-19 20:37 ` Anton Vorontsov
[not found] ` <20071219203447.GA18285-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-12-19 20:38 ` [PATCH 3/4] [POWERPC][SPI] use brg-frequency for SPI in QE Anton Vorontsov
2007-12-19 20:38 ` Anton Vorontsov
[not found] ` <20071219203805.GC20861-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-12-19 20:58 ` Scott Wood
2007-12-19 20:58 ` Scott Wood
2007-12-19 23:27 ` Stephen Rothwell
2007-12-19 23:27 ` Stephen Rothwell
2007-12-19 20:38 ` [PATCH 4/4] [POWERPC] fsl_spi_init and users: stop using device_type = "spi" Anton Vorontsov
2007-12-19 20:54 ` Kumar Gala
2007-12-19 21:02 ` Anton Vorontsov
2007-12-19 21:04 ` Timur Tabi
2007-12-19 21:12 ` Anton Vorontsov
2007-12-19 21:15 ` Timur Tabi
2007-12-19 21:38 ` Grant Likely
2007-12-19 23:50 ` Olof Johansson [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-12-21 20:18 [PATCH v3 0/4] device_type/compatible cleanups Anton Vorontsov
2007-12-21 20:21 ` [PATCH 4/4] [POWERPC] fsl_spi_init and users: stop using device_type = "spi" Anton Vorontsov
2008-01-08 14:26 [PATCH v4 0/4] device_type/compatible cleanups Anton Vorontsov
2008-01-08 14:30 ` [PATCH 4/4] [POWERPC] fsl_spi_init and users: stop using device_type = "spi" Anton Vorontsov
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=20071219235037.GA2309@lixom.net \
--to=olof@lixom.net \
--cc=avorontsov@ru.mvista.com \
--cc=linuxppc-dev@ozlabs.org \
--cc=timur@freescale.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.