From b5b4ff0a633910b2b9dca7915fd6ab17aa10dc3e Mon Sep 17 00:00:00 2001 From: Shawn Lin Date: Wed, 12 Aug 2015 13:08:32 +0800 Subject: mmc: block: skip trim for some kingston eMMCs For some mass production of kingston eMMCs which adopt Phison's firmware will meet an unrecoverable data conrruption occasionally if performing trim due to a firmware bug confirmed by vendor. We found it on Intel-C3230RK platform. So we add fixup of broken trim for it. Signed-off-by: Shawn Lin Signed-off-by: Ulf Hansson --- drivers/mmc/core/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/mmc/core/core.c') diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 57edb2a9bb04..664b61729fa9 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2250,7 +2250,8 @@ EXPORT_SYMBOL(mmc_can_erase); int mmc_can_trim(struct mmc_card *card) { - if (card->ext_csd.sec_feature_support & EXT_CSD_SEC_GB_CL_EN) + if ((card->ext_csd.sec_feature_support & EXT_CSD_SEC_GB_CL_EN) && + (!(card->quirks & MMC_QUIRK_TRIM_BROKEN))) return 1; return 0; } -- cgit v1.2.3