Messages in this thread Patch in this message | | | From | "Steven J. Hill" <> | Subject | [PATCH 1/4] mmc: core: Export API to allow hosts to get the card address | Date | Mon, 24 Apr 2017 13:41:55 -0500 |
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From: Ulf Hansson <ulf.hansson@linaro.org>
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> --- drivers/mmc/core/core.c | 6 ++++++ include/linux/mmc/card.h | 2 ++ 2 files changed, 8 insertions(+)
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 926e0fd..f9fae34 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2555,6 +2555,12 @@ 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 77e61e0..4cd9450 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -307,6 +307,8 @@ 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) -- 2.1.4
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