diff options
| author | Avri Altman <avri.altman@wdc.com> | 2019-02-06 13:28:05 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2019-02-25 08:40:58 +0100 |
| commit | 01904ff77676ca6c88e972906ed204a2dfbabab6 (patch) | |
| tree | 713125d74fbb619d07ef3271a24a22688cbf80d6 /drivers/mmc/core/mmc.c | |
| parent | a2b760a60194aaa754dc78dd037d81ee6c3508a1 (diff) | |
mmc: core: Calculate the discard arg only once
In MMC, the discard arg is a read-only ext_csd parameter - set it once
on card init. To be consistent, do that for SD as well even though its
discard arg is always 0x0.
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core/mmc.c')
| -rw-r--r-- | drivers/mmc/core/mmc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index da892a599524..09c688f5ff65 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1743,6 +1743,14 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, card->ext_csd.power_off_notification = EXT_CSD_POWER_ON; } + /* set erase_arg */ + if (mmc_can_discard(card)) + card->erase_arg = MMC_DISCARD_ARG; + else if (mmc_can_trim(card)) + card->erase_arg = MMC_TRIM_ARG; + else + card->erase_arg = MMC_ERASE_ARG; + /* * Select timing interface */ |