kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-10-31 05:15:34 +00:00
Code Issues Releases Packages Activity

mmc: sdhci-pci: CaFe has broken card detection

Browse source 
commit 55fc05b741 upstream.

At http://dev.laptop.org/ticket/11980 we have determined that the
Marvell CaFe SDHCI controller reports bad card presence during
resume. It reports that no card is present even when it is.
This is a regression -- resume worked back around 2.6.37.

Around 400ms after resuming, a "card inserted" interrupt is
generated, at which point it starts reporting presence.

Work around this hardware oddity by setting the
SDHCI_QUIRK_BROKEN_CARD_DETECTION flag.
Thanks to Chris Ball for helping with diagnosis.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Daniel Drake 2012-07-03 23:13:39 +01:00 • committed by Greg Kroah-Hartman
commit 8f475b5ca6
1 changed files with 1 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files