Thread (145 messages) 145 messages, 8 authors, 2012-01-26

[060/129] mmc: sd: Fix SDR12 timing regression

From: Greg KH <gregkh@suse.de>
Date: 2012-01-24 02:45:19
Also in: lkml

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------
Content-Length: 1174
Lines: 32

From: Alexander Elbs <redacted>

commit dd8df17fe83483d7ea06ff229895e35a42071599 upstream.

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 <redacted>
Acked-by: Philip Rakity <redacted>
Acked-by: Arindam Nath <redacted>
Signed-off-by: Chris Ball <redacted>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/mmc/host/sdhci.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1364,8 +1364,7 @@ static void sdhci_do_set_ios(struct sdhc
 		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);

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