1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 793d0a0dad8d..ca2e4f50f615 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -301,6 +301,17 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
         host->max_blk_size = 512;
         host->max_blk_count = PAGE_CACHE_SIZE / 512;
 
+        /*
+         * Enable runtime power management by default. This flag was added due
+         * to runtime power management causing disruption for some users, but
+         * the power on/off code has been improved since then.
+         *
+         * We'll enable this flag by default as an experiment, and if no
+         * problems are reported, we will follow up later and remove the flag
+         * altogether.
+         */
+        host->caps = MMC_CAP_POWER_OFF_CARD;
+
         return host;
 
 free: