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mmc: sd: Fix SDR12 timing regression

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This patch fixes a failure to recognize SD cards reported on a Dell
Vostro with O2 Micro SD card reader.  Patch 49c468f ("mmc: sd: add
support for uhs bus speed mode selection") caused the problem, by
setting the SDHCI_CTRL_HISPD flag even for legacy timings.

Signed-off-by: Alexander Elbs <alex@segv.de>
Acked-by: Philip Rakity <prakity@marvell.com>
Acked-by: Arindam Nath <arindam.nath@amd.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Alexander Elbs 2012-01-03 23:26:53 -05:00 committed by Chris Ball
parent c6ced0db08
commit dd8df17fe8
1 changed files with 1 additions and 2 deletions
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3
drivers/mmc/host/sdhci.c
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@ -1385,8 +1385,7 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
if ((ios->timing == MMC_TIMING_UHS_SDR50) ||
(ios->timing == MMC_TIMING_UHS_SDR104) ||
(ios->timing == MMC_TIMING_UHS_DDR50) ||
(ios->timing == MMC_TIMING_UHS_SDR25) ||
(ios->timing == MMC_TIMING_UHS_SDR12))
(ios->timing == MMC_TIMING_UHS_SDR25))
ctrl |= SDHCI_CTRL_HISPD;
ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);