Declare ERASE capability so we can use filesystems with the discard
option and the fstrim tool.

Signed-off-by: Chen-Yu Tsai <[email protected]>
---
 drivers/mmc/host/sunxi-mmc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 024f67c..7bf5c1c 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -990,7 +990,8 @@ static int sunxi_mmc_probe(struct platform_device *pdev)
        /* 400kHz ~ 50MHz */
        mmc->f_min              =   400000;
        mmc->f_max              = 50000000;
-       mmc->caps              |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED;
+       mmc->caps              |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
+                                 MMC_CAP_ERASE;
 
        ret = mmc_of_parse(mmc);
        if (ret)
-- 
2.1.0

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