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| author | Daniel Drake <dsd@laptop.org> | 2012-07-03 23:13:39 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-09 08:27:33 -0700 |
| commit | 4067ad7b53cd5ba2699286620a2c645bb56542fa (patch) | |
| tree | 00965f05c20ff28499a2322053a20f2063301d1f /arch/powerpc | |
| parent | f351a1d7efda2edd52c23a150b07b8380c47b6c0 (diff) | |
| download | kernel_samsung_smdk4412-4067ad7b53cd5ba2699286620a2c645bb56542fa.tar.gz kernel_samsung_smdk4412-4067ad7b53cd5ba2699286620a2c645bb56542fa.tar.bz2 kernel_samsung_smdk4412-4067ad7b53cd5ba2699286620a2c645bb56542fa.zip | |
mmc: sdhci-pci: CaFe has broken card detection
commit 55fc05b7414274f17795cd0e8a3b1546f3649d5e 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>
Diffstat (limited to 'arch/powerpc')
0 files changed, 0 insertions, 0 deletions