If eMMC Cache feature enabled, we'd better flush
eMMC cache in the shutdown callback. Otherwise
data corruption issue may be observed.
Signed-off-by: Yunpeng Gao <yunpeng.gao@xxxxxxxxx>
---
drivers/mmc/card/block.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 452782b..8a4010e 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -2509,6 +2509,10 @@ static int _mmc_blk_suspend(struct mmc_card *card)
static void mmc_blk_shutdown(struct mmc_card *card)
{
_mmc_blk_suspend(card);
+
+ mmc_claim_host(card->host);
+ mmc_flush_cache(card);
+ mmc_release_host(card->host);
}
#ifdef CONFIG_PM
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
