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authorLinus Torvalds <torvalds@linux-foundation.org>2009-04-05 10:18:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-05 10:18:21 -0700
commit0a053e8c71d666daf30da2d407147b1293923d8b (patch)
tree9ba3967845db9053cb2ca045f01a9454eb5e6230 /drivers/mmc/core/core.c
parent601cc11d054ae4b5e9b5babec3d8e4667a2cb9b5 (diff)
parent32ab83a56fdf42f543b86c349143c2a86ead9707 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: (42 commits) atmel-mci: fix sdc_reg typo tmio_mmc: add maintainer mmc: Add OpenFirmware bindings for SDHCI driver sdhci: Add quirk for forcing maximum block size to 2048 bytes sdhci: Add quirk for controllers that need IRQ re-init after reset sdhci: Add quirk for controllers that need small delays for PIO sdhci: Add set_clock callback and a quirk for nonstandard clocks sdhci: Add get_{max,timeout}_clock callbacks sdhci: Add support for hosts reporting inverted write-protect state sdhci: Add support for card-detection polling sdhci: Enable only relevant (DMA/PIO) interrupts during transfers sdhci: Split card-detection IRQs management from sdhci_init() sdhci: Add support for bus-specific IO memory accessors mmc_spi: adjust for delayed data token response omap_hsmmc: Wait for SDBP omap_hsmmc: Fix MMC3 dma omap_hsmmc: Disable SDBP at suspend omap_hsmmc: Do not prefix slot name omap_hsmmc: Allow cover switch to cause rescan omap_hsmmc: Add 8-bit bus width mode support ...
Diffstat (limited to 'drivers/mmc/core/core.c')
-rw-r--r--drivers/mmc/core/core.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 1445ea8f10a6..fa073ab3fa34 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -298,6 +298,21 @@ void mmc_set_data_timeout(struct mmc_data *data, const struct mmc_card *card)
data->timeout_clks = 0;
}
}
+ /*
+ * Some cards need very high timeouts if driven in SPI mode.
+ * The worst observed timeout was 900ms after writing a
+ * continuous stream of data until the internal logic
+ * overflowed.
+ */
+ if (mmc_host_is_spi(card->host)) {
+ if (data->flags & MMC_DATA_WRITE) {
+ if (data->timeout_ns < 1000000000)
+ data->timeout_ns = 1000000000; /* 1s */
+ } else {
+ if (data->timeout_ns < 100000000)
+ data->timeout_ns = 100000000; /* 100ms */
+ }
+ }
}
EXPORT_SYMBOL(mmc_set_data_timeout);
@@ -915,6 +930,7 @@ void mmc_stop_host(struct mmc_host *host)
spin_unlock_irqrestore(&host->lock, flags);
#endif
+ cancel_delayed_work(&host->detect);
mmc_flush_scheduled_work();
mmc_bus_get(host);
@@ -942,6 +958,7 @@ void mmc_stop_host(struct mmc_host *host)
*/
int mmc_suspend_host(struct mmc_host *host, pm_message_t state)
{
+ cancel_delayed_work(&host->detect);
mmc_flush_scheduled_work();
mmc_bus_get(host);
@@ -975,6 +992,7 @@ int mmc_resume_host(struct mmc_host *host)
mmc_bus_get(host);
if (host->bus_ops && !host->bus_dead) {
mmc_power_up(host);
+ mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
host->bus_ops->resume(host);
}