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| author | Anton Vorontsov | 2009-03-16 22:13:54 +0100 |
|---|---|---|
| committer | Pierre Ossman | 2009-03-24 21:30:09 +0100 |
| commit | c5075a1089e808d8f471ce21b02810cc98ab2692 (patch) | |
| tree | 25780a5db4a56e51a736c45bfb2cc8fe132fbd11 /drivers/mmc/host/sdhci.c | |
| parent | sdhci: Add support for card-detection polling (diff) | |
| download | kernel-qcow2-linux-c5075a1089e808d8f471ce21b02810cc98ab2692.tar.gz kernel-qcow2-linux-c5075a1089e808d8f471ce21b02810cc98ab2692.tar.xz kernel-qcow2-linux-c5075a1089e808d8f471ce21b02810cc98ab2692.zip | |
sdhci: Add support for hosts reporting inverted write-protect state
This patch adds SDHCI_QUIRK_INVERTED_WRITE_PROTECT quirk. When
specified, the sdhci driver will invert WP state.
p.s. Actually, the quirk is more board-specific than
controller-specific.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc/host/sdhci.c')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index fc7cb489bdb7..c814220d214e 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1149,6 +1149,8 @@ static int sdhci_get_ro(struct mmc_host *mmc) spin_unlock_irqrestore(&host->lock, flags); + if (host->quirks & SDHCI_QUIRK_INVERTED_WRITE_PROTECT) + return !!(present & SDHCI_WRITE_PROTECT); return !(present & SDHCI_WRITE_PROTECT); } |