diff options
| author | Benoît Monin <benoit.monin@bootlin.com> | 2025-08-18 16:02:46 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2025-08-19 14:34:15 +0200 |
| commit | 18f7439fa171f798f2ff8aa69611db41f658242a (patch) | |
| tree | b8c2f1e6f48e8bf047e2ce2b210503178eac959b /drivers/mmc | |
| parent | ff1bd1190e746a0ba2c6db7b84c3f677fdf1dad1 (diff) | |
mmc: core: add mmc_card_can_cmd23
Add a dedicated helper to check for CMD23 support for MMC card, similar
to mmc_host_can_cmd23 for the host, as it is easy to get the check
wrong.
Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
Link: https://lore.kernel.org/r/20250818-mobileye-emmc-for-upstream-4-v4-1-34ecb3995e96@bootlin.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/core.c | 9 | ||||
| -rw-r--r-- | drivers/mmc/core/core.h | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 874c6fe92855..88fd231fee1d 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1875,6 +1875,15 @@ bool mmc_card_can_secure_erase_trim(struct mmc_card *card) } EXPORT_SYMBOL(mmc_card_can_secure_erase_trim); +bool mmc_card_can_cmd23(struct mmc_card *card) +{ + return ((mmc_card_mmc(card) && + card->csd.mmca_vsn >= CSD_SPEC_VER_3) || + (mmc_card_sd(card) && !mmc_card_ult_capacity(card) && + card->scr.cmds & SD_SCR_CMD23_SUPPORT)); +} +EXPORT_SYMBOL(mmc_card_can_cmd23); + int mmc_erase_group_aligned(struct mmc_card *card, sector_t from, unsigned int nr) { diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h index 622085cd766f..73f5d3d8c77d 100644 --- a/drivers/mmc/core/core.h +++ b/drivers/mmc/core/core.h @@ -123,6 +123,7 @@ bool mmc_card_can_trim(struct mmc_card *card); bool mmc_card_can_discard(struct mmc_card *card); bool mmc_card_can_sanitize(struct mmc_card *card); bool mmc_card_can_secure_erase_trim(struct mmc_card *card); +bool mmc_card_can_cmd23(struct mmc_card *card); int mmc_erase_group_aligned(struct mmc_card *card, sector_t from, unsigned int nr); unsigned int mmc_calc_max_discard(struct mmc_card *card); |