diff options
| author | Ulf Hansson <ulf.hansson@linaro.org> | 2017-06-08 16:27:40 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-06-20 11:30:44 +0300 |
| commit | d9df1737583ed34bf470d87dbb6f9d0a42718b40 (patch) | |
| tree | 1a9e9c3bde381cea9b3f72c158a46f07fdaaefb5 /drivers/mmc/core/mmc_ops.c | |
| parent | 0f2c05125ef98f062c256c6d150ff372125bf523 (diff) | |
| download | linux-d9df1737583ed34bf470d87dbb6f9d0a42718b40.tar.xz | |
mmc: core: Move mmc_flush_cache() from core.c to mmc_ops.c
The mmc_flush_cache() is a eMMC specific function, let's move it to
mmc_ops.c to make that clear.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Diffstat (limited to 'drivers/mmc/core/mmc_ops.c')
| -rw-r--r-- | drivers/mmc/core/mmc_ops.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c index 26760e76e924..d28434f26f9a 100644 --- a/drivers/mmc/core/mmc_ops.c +++ b/drivers/mmc/core/mmc_ops.c @@ -1022,6 +1022,27 @@ out: mmc_release_host(card->host); } +/* + * Flush the cache to the non-volatile storage. + */ +int mmc_flush_cache(struct mmc_card *card) +{ + int err = 0; + + if (mmc_card_mmc(card) && + (card->ext_csd.cache_size > 0) && + (card->ext_csd.cache_ctrl & 1)) { + err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, + EXT_CSD_FLUSH_CACHE, 1, 0); + if (err) + pr_err("%s: cache flush error %d\n", + mmc_hostname(card->host), err); + } + + return err; +} +EXPORT_SYMBOL(mmc_flush_cache); + static int mmc_cmdq_switch(struct mmc_card *card, bool enable) { u8 val = enable ? EXT_CSD_CMDQ_MODE_ENABLED : 0; |