diff options
| author | Avri Altman | 2019-02-06 13:28:05 +0200 |
|---|---|---|
| committer | Ulf Hansson | 2019-02-25 08:40:58 +0100 |
| commit | 01904ff77676ca6c88e972906ed204a2dfbabab6 (patch) | |
| tree | 713125d74fbb619d07ef3271a24a22688cbf80d6 /include/linux/mmc | |
| 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 'include/linux/mmc')
| -rw-r--r-- | include/linux/mmc/card.h | 1 | ||||
| -rw-r--r-- | include/linux/mmc/sd.h | 5 |
2 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 8ef330027b13..e2bbceb80725 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -277,6 +277,7 @@ struct mmc_card { unsigned int erase_shift; /* if erase unit is power 2 */ unsigned int pref_erase; /* in sectors */ unsigned int eg_boundary; /* don't cross erase-group boundaries */ + unsigned int erase_arg; /* erase / trim / discard */ u8 erased_byte; /* value of erased bytes */ u32 raw_cid[4]; /* raw card CID */ diff --git a/include/linux/mmc/sd.h b/include/linux/mmc/sd.h index 1ebcf9ba1256..1a6d10fdf682 100644 --- a/include/linux/mmc/sd.h +++ b/include/linux/mmc/sd.h @@ -91,4 +91,9 @@ #define SD_SWITCH_ACCESS_DEF 0 #define SD_SWITCH_ACCESS_HS 1 +/* + * Erase/discard + */ +#define SD_ERASE_ARG 0x00000000 + #endif /* LINUX_MMC_SD_H */ |