mmc: dw_mmc: Run card detect tasklet during slot initialisation.

We need to run the card detect tasklet at the end of slot initialisation
as it is possible that a card has been inserted prior to boot, so we don't
see an insertion interrupt and now the card is sitting there inserted but
with no power to it.

Signed-off-by: Neil Jones <neil.jones@imgtec.com>
Signed-off-by: Will Newton <will.newton@imgtec.com>
Reviewed-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 2fcc82577c1b..c01cb8642fb5 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1441,6 +1441,12 @@ static int __init dw_mci_init_slot(struct dw_mci *host, unsigned int id)
         /* Card initially undetected */
         slot->last_detect_state = 0;
 
+        /*
+         * Card may have been plugged in prior to boot so we
+         * need to run the detect tasklet
+         */
+        tasklet_schedule(&host->card_tasklet);
+
         return 0;
 }