mmc: fixes for eMMC v4.5 discard operation

[pandora-kernel.git] / drivers / mmc / core / core.c

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 950b97d..c420a9e 100644 (file)
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1516,7 +1516,10 @@ static unsigned int mmc_mmc_erase_timeout(struct mmc_card *card,
 {
        unsigned int erase_timeout;
 
-       if (card->ext_csd.erase_group_def & 1) {
+       if (arg == MMC_DISCARD_ARG ||
+           (arg == MMC_TRIM_ARG && card->ext_csd.rev >= 6)) {
+               erase_timeout = card->ext_csd.trim_timeout;
+       } else if (card->ext_csd.erase_group_def & 1) {
                /* High Capacity Erase Group Size uses HC timeouts */
                if (arg == MMC_TRIM_ARG)
                        erase_timeout = card->ext_csd.trim_timeout;
@@ -1788,8 +1791,6 @@ int mmc_can_trim(struct mmc_card *card)
 {
        if (card->ext_csd.sec_feature_support & EXT_CSD_SEC_GB_CL_EN)
                return 1;
-       if (mmc_can_discard(card))
-               return 1;
        return 0;
 }
 EXPORT_SYMBOL(mmc_can_trim);