[PATCH] mmc: dw_mmc: add the message for deprecating supports-highspeed

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Recommend to use "mmc-cap-highspeed" or "sd-cap-highspeed" instead of
"supports-highspeed".
Although "supports-highspeed" supports, devloper can use
"mmc-cap-highspeed" or "sd-cap-highspeed" through this message.

Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
---
 drivers/mmc/host/dw_mmc.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index bb46b1b..7075d33 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2434,8 +2434,11 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
 			return ERR_PTR(ret);
 	}
 
-	if (of_find_property(np, "supports-highspeed", NULL))
+	if (of_find_property(np, "supports-highspeed", NULL)) {
+		dev_warn(dev, "supports-highspeed is deprecated. "
+				"Use cap-mmc-highspeed or cap-sd-highspeed.\n");
 		pdata->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
+	}
 
 	return pdata;
 }
-- 
1.7.9.5

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