Messages in this thread Patch in this message | | | Date | Tue, 11 Nov 2008 16:24:29 -0800 | From | Greg KH <> | Subject | [patch 45/49] mmc: increase SD write timeout for crappy cards |
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2.6.27-stable review patch. If anyone has any objections, please let us know.
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From: Pierre Ossman <drzeus@drzeus.cx>
commit 493890e75d98810a3470b4aae23be628ee5e9667 upstream.
It seems that some cards are slightly out of spec and occasionally will not be able to complete a write in the alloted 250 ms [1]. Incease the timeout slightly to allow even these cards to function properly.
[1] http://lkml.org/lkml/2008/9/23/390
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/mmc/core/core.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -280,7 +280,11 @@ void mmc_set_data_timeout(struct mmc_dat (card->host->ios.clock / 1000); if (data->flags & MMC_DATA_WRITE) - limit_us = 250000; + /* + * The limit is really 250 ms, but that is + * insufficient for some crappy cards. + */ + limit_us = 300000; else limit_us = 100000; --
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