mmc: dw_mmc: add support for eMMC Power Off Notify feature

This patch adds the capability of power off notify for dw-mmc controller.
In order to use Girish's patch:
mmc: core: Add Power Off Notify Feature eMMC 4.5

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 8bec1c36b159..1dfcdef452b9 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1720,6 +1720,11 @@ static int __init dw_mci_init_slot(struct dw_mci *host, unsigned int id)
         if (host->pdata->quirks & DW_MCI_QUIRK_HIGHSPEED)
                 mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
 
+        if (mmc->caps2 & MMC_CAP2_POWEROFF_NOTIFY)
+                mmc->power_notify_type = MMC_HOST_PW_NOTIFY_SHORT;
+        else
+                mmc->power_notify_type = MMC_HOST_PW_NOTIFY_NONE;
+
 #ifdef CONFIG_MMC_DW_IDMAC
         mmc->max_segs = host->ring_size;
         mmc->max_blk_size = 65536;