sdhci: implement CAP_CLOCK_BASE_BROKEN quirk

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Some hosts (e.g.  as found in CNS3xxx SOCs) report wrong value in
CLOCK_BASE capability field, and currently there is no way to force the
SDHCI core to use the platform-provided base clock value.

This patch implements CAP_CLOCK_BASE_BROKEN quirk.  When enabled, the
SDHCI core will always use base clock frequency provided by the platform.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Richard Röjfors <richard.rojfors@pelagicore.com>
Cc: David Vrabel <david.vrabel@csr.com>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: Ben Dooks <ben@simtec.co.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

...

This commit is contained in:

Anton Vorontsov 2010-05-26 14:41:53 -07:00 • committed by Linus Torvalds

parent 0e950fa686

commit f27f47ef5b

2 changed files with 4 additions and 1 deletions

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3

drivers/mmc/host/sdhci.c

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2

drivers/mmc/host/sdhci.h

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