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From: Scott Wood <scottwood@freescale.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jean Delvare <khali@linux-fr.org>,
	linuxppc-dev@ozlabs.org, i2c@lm-sensors.org
Subject: Re: [i2c] [PATCH 0/4] Series to add device tree naming to i2c
Date: Mon, 10 Dec 2007 10:42:55 -0600	[thread overview]
Message-ID: <20071210164255.GA4497@loki.buserror.net> (raw)
In-Reply-To: <1197236326.6563.22.camel@pasglop>

On Mon, Dec 10, 2007 at 08:38:46AM +1100, Benjamin Herrenschmidt wrote:
> The more I think about it, the more I tend to agree that tagging isn't
> necessary and you are right. We should just match the name against the
> "compatible" property of the OF nodes (which mean we need to support
> multiple matches though since "compatible" is a list of strings).

It may not be strictly necessary, but I think it's a good idea not just for
safety reasons, but as an indication to the driver what additional
information it has access to.  We could put a match data pointer in the i2c
device, and have it be a valid node pointer if the match was an OF one (and
a device-specific struct for a straight platform device, etc).  This could
be useful if a device needs to have more properties than standard
address/type/interrupt for some reason.

-Scott

  parent reply	other threads:[~2007-12-10 17:19 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-03 21:20 [PATCH 0/4] Series to add device tree naming to i2c Jon Smirl
2007-12-03 21:20 ` [PATCH 1/4] Implement module aliasing for i2c to translate from device tree names Jon Smirl
2007-12-03 21:20 ` [PATCH 2/4] Modify several rtc drivers to use the alias names list property of i2c Jon Smirl
2007-12-03 21:20 ` [PATCH 3/4] Convert PowerPC MPC i2c to of_platform_driver from platform_driver Jon Smirl
2007-12-03 21:20 ` [PATCH 4/4] Convert pfc8563 i2c driver from old style to new style Jon Smirl
2007-12-03 23:37 ` [PATCH 0/4] Series to add device tree naming to i2c Olof Johansson
2007-12-03 23:51   ` Scott Wood
2007-12-03 23:52   ` Jon Smirl
2007-12-04  0:04     ` Olof Johansson
2007-12-09 20:24 ` [i2c] " Jon Smirl
2007-12-09 20:39   ` Olof Johansson
2007-12-09 20:46   ` Benjamin Herrenschmidt
2007-12-09 20:57     ` Jon Smirl
2007-12-09 21:13       ` Benjamin Herrenschmidt
2007-12-09 21:35         ` Jon Smirl
2007-12-09 21:38           ` Benjamin Herrenschmidt
2007-12-09 21:46             ` Jon Smirl
2007-12-09 21:53             ` Olof Johansson
2007-12-10 16:42             ` Scott Wood [this message]
2007-12-10 18:06               ` Jon Smirl
2007-12-10 18:37                 ` Scott Wood
2007-12-10 18:52                   ` Jon Smirl
2007-12-10 20:35                 ` Benjamin Herrenschmidt
2007-12-10 20:32               ` Benjamin Herrenschmidt

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