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| author | Maxim Levitsky <maximlevitsky@gmail.com> | 2010-08-10 18:01:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-11 08:59:03 -0700 |
| commit | ccc92c23240cdf952ef7cc39ba563910dcbc9cbe (patch) | |
| tree | d656aad9e86fff59c1a5cbece4a5ccb019c35011 /drivers/mmc/host/sdhci.c | |
| parent | 4c2ef25fe0b847d2ae818f74758ddb0be1c27d8e (diff) | |
| download | op-kernel-dev-ccc92c23240cdf952ef7cc39ba563910dcbc9cbe.zip op-kernel-dev-ccc92c23240cdf952ef7cc39ba563910dcbc9cbe.tar.gz | |
mmc: make sdhci work with ricoh mmc controller
The current way of disabling it is not well tested by vendor and has all
kinds of bugs that show up on resume from ram/disk. A very good example
is a dead SDHCI controller.
Old way of disabling is still supported by continuing to use
CONFIG_MMC_RICOH_MMC.
Based on 'http://list.drzeus.cx/pipermail/sdhci-devel/2007-December/002085.html'
Therefore most of the credit for this goes to Andrew de Quincey
Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Andrew de Quincey <adq_dvb@lidskialf.net>
Acked-by: Philip Langdale <philipl@overt.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/mmc/host/sdhci.c')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index c6d1bd8..483b78e 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1687,7 +1687,8 @@ int sdhci_add_host(struct sdhci_host *host) host->version); } - caps = sdhci_readl(host, SDHCI_CAPABILITIES); + caps = (host->quirks & SDHCI_QUIRK_MISSING_CAPS) ? host->caps : + sdhci_readl(host, SDHCI_CAPABILITIES); if (host->quirks & SDHCI_QUIRK_FORCE_DMA) host->flags |= SDHCI_USE_SDMA; |
