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authorDavid Cohen <david.a.cohen@linux.intel.com>2013-10-29 10:58:26 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-02-06 11:34:08 -0800
commita5891096c1e99013f0fab10eb353d855988392d1 (patch)
tree52702485111064a09ad80e1e733d7787c2573cc8 /drivers
parentc8579f3216b25a0c5adf473b2e1cbbb3f908fa4c (diff)
mmc: sdhci: add quirk for broken HS200 support
commit 13868bf20f2f2c305f96e23620b024e167d6f9cb upstream. This patch defines a quirk for platforms unable to enable HS200 support. Signed-off-by: David Cohen <david.a.cohen@linux.intel.com> Reviewed-by: Chuanxiao Dong <chuanxiao.dong@intel.com> Acked-by: Dong Aisheng <b29396@freescale.com> Signed-off-by: Chris Ball <chris@printf.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/host/sdhci.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index bd8a0982aec3..08c069da2484 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -3004,7 +3004,8 @@ int sdhci_add_host(struct sdhci_host *host)
/* SD3.0: SDR104 is supported so (for eMMC) the caps2
* field can be promoted to support HS200.
*/
- mmc->caps2 |= MMC_CAP2_HS200;
+ if (!(host->quirks2 & SDHCI_QUIRK2_BROKEN_HS200))
+ mmc->caps2 |= MMC_CAP2_HS200;
} else if (caps[1] & SDHCI_SUPPORT_SDR50)
mmc->caps |= MMC_CAP_UHS_SDR50;