From: Jaehoon Chung <jh80.chung@samsung.com>
Date: Fri, 15 Jul 2016 01:54:50 +0000 (+0900)
Subject: mmc: dw_mmc: set to MMC_CAP_ERASE by default
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6024e16654c1e1a2475e848d735963d05a12dba9;p=linux-beck.git

mmc: dw_mmc: set to MMC_CAP_ERASE by default

This flag needs to use the trim/discard/erase commands.
dwmmc controller enables this flag by default.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 2dfdc58bae13..32380d5d4f6b 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2604,6 +2604,12 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
 	if (host->pdata->caps)
 		mmc->caps = host->pdata->caps;
 
+	/*
+	 * Support MMC_CAP_ERASE by default.
+	 * It needs to use trim/discard/erase commands.
+	 */
+	mmc->caps |= MMC_CAP_ERASE;
+
 	if (host->pdata->pm_caps)
 		mmc->pm_caps = host->pdata->pm_caps;