[PATCH V2] mmc: dw_mmc: exynos: Turn SDIO interrupts on

[Yuvaraj Kumar C D]

The mmc part in exynos supports SDIO interrupts and they work fine, so
turn the capability on.  With this I see download speeds increase
about 10x. 
	
This V1 of this patch is posted to LKML at
https://patchwork.kernel.org/patch/2429661/) by Doug Anderson.

Signed-off-by: Doug Anderson <dianders at chromium.org>
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd at samsung.com>
---
 drivers/mmc/host/dw_mmc.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 0c56faa..240949d 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2417,6 +2417,9 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
 	if (of_get_property(np, "cd-inverted", NULL))
 		pdata->caps2 |= MMC_CAP2_CD_ACTIVE_HIGH;
 
+	if (of_find_property(np, "cap-sdio-irq", NULL))
+		pdata->caps |= MMC_CAP_SDIO_IRQ;
+
 	return pdata;
 }
 
-- 
1.7.10.4