From: Ulf Hansson Date: Mon, 24 Apr 2017 18:41:55 +0000 (-0500) Subject: mmc: core: Export API to allow hosts to get the card address X-Git-Tag: v4.12-rc1~128^2~9 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=33e6d74d65c358270f00d228877178964aab84b3;p=linux.git 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 Signed-off-by: Steven J. Hill Acked-by: David Daney --- 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)