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mmc: dw_mmc-rockchip: fix failing to mount partition with "discard" 

Without MMC_CAP_ERASE support, we fail to mount partition
with "discard" option since mmc_queue_setup_discard is limited
for checking mmc_can_erase. Without doing mmc_queue_setup_discard,
blk_queue_discard fails to test QUEUE_FLAG_DISCARD flag, so we get
the following log from f2fs(actually similar to other file system):

mounting with "discard" option, but the device does not support discard

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Shawn Lin 2016-03-01 15:12:53 +08:00 committed by Ulf Hansson
parent 31fa83539f
commit c6a9bf99dd
1 changed files with 9 additions and 0 deletions
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9
drivers/mmc/host/dw_mmc-rockchip.c
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@ -234,11 +234,20 @@ static int dw_mci_rockchip_init(struct dw_mci *host)
return 0;
}
/* Common capabilities of RK3288 SoC */
static unsigned long dw_mci_rk3288_dwmmc_caps[4] = {
MMC_CAP_ERASE,
MMC_CAP_ERASE,
MMC_CAP_ERASE,
MMC_CAP_ERASE,
};
static const struct dw_mci_drv_data rk2928_drv_data = {
.init = dw_mci_rockchip_init,
};
static const struct dw_mci_drv_data rk3288_drv_data = {
.caps = dw_mci_rk3288_dwmmc_caps,
.set_ios = dw_mci_rk3288_set_ios,
.execute_tuning = dw_mci_rk3288_execute_tuning,
.parse_dt = dw_mci_rk3288_parse_dt,