From: Wolfram Sang <w.sang@pengutronix.de>
To: linux-kernel@vger.kernel.org
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Subject: regmap: no indexed caching?
Date: Thu, 19 Jan 2012 12:37:08 +0100 [thread overview]
Message-ID: <20120119113708.GC2630@pengutronix.de> (raw)
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Hi,
indexed caching was removed from regmap (commit 4c691664583ef6a91f9ed0e08a75fbd30a5ffd5c)
saying:
There should be no situation where it offers any advantage over rbtree
and there are no current users so remove the code for simplicity.
What about devices having just a few registers (4 in my case)? I'd think
there are a number of such devices not yet converted to regmap. Is it
assumed that the additional overhead from rbtree-caching will make up
for the code saved?
Regards,
Wolfram
--
Pengutronix e.K. | Wolfram Sang |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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next reply other threads:[~2012-01-19 11:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-19 11:37 Wolfram Sang [this message]
2012-01-19 11:39 ` regmap: no indexed caching? Mark Brown
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