diff options
| author | Ulf Hansson <ulf.hansson@linaro.org> | 2017-04-24 13:41:55 -0500 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-04-24 21:49:15 +0200 |
| commit | 33e6d74d65c358270f00d228877178964aab84b3 (patch) | |
| tree | 5a3590e037d82638dbd3a7e0a6f9442230fe6d3a | |
| parent | f328c76e568d13c9fee21b5cf7411c96285f0f89 (diff) | |
| download | linux-33e6d74d65c358270f00d228877178964aab84b3.tar.bz2 | |
mmc: core: Export API to allow hosts to get the card address
Some hosts controllers, like Cavium, needs to know whether the card
operates in byte- or block-address mode. Therefore export a new API,
mmc_card_is_blockaddr(), which provides this information.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Steven J. Hill <Steven.Hill@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
| -rw-r--r-- | drivers/mmc/core/core.c | 6 | ||||
| -rw-r--r-- | include/linux/mmc/card.h | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index e5f6bbfa73dd..82c45ddfa202 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2560,6 +2560,12 @@ unsigned int mmc_calc_max_discard(struct mmc_card *card) } EXPORT_SYMBOL(mmc_calc_max_discard); +bool mmc_card_is_blockaddr(struct mmc_card *card) +{ + return card ? mmc_card_blockaddr(card) : false; +} +EXPORT_SYMBOL(mmc_card_is_blockaddr); + int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen) { struct mmc_command cmd = {}; diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 85b5f2bc8bb9..aad015e0152b 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -315,6 +315,8 @@ static inline bool mmc_large_sector(struct mmc_card *card) return card->ext_csd.data_sector_size == 4096; } +bool mmc_card_is_blockaddr(struct mmc_card *card); + #define mmc_card_mmc(c) ((c)->type == MMC_TYPE_MMC) #define mmc_card_sd(c) ((c)->type == MMC_TYPE_SD) #define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO) |