From 2059a02dcb84236f9db9197fa9b00418d7b8465b Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Tue, 5 Apr 2011 18:02:25 +0300 Subject: [PATCH] mmc: add MMC_QUIRK_DISABLE_CD 006ebd5d introduced sdio_disable_cd(), which disconnects the pull-up resistor on CD/DAT[3] (pin 1) of the card. Make it possible to start using sdio_disable_cd() by introducing MMC_QUIRK_DISABLE_CD. Signed-off-by: Ohad Ben-Cohen Signed-off-by: Chris Ball --- drivers/mmc/core/sdio.c | 2 +- include/linux/mmc/card.h | 6 ++++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index c3c2bd0874e..a5840c0de2e 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -187,7 +187,7 @@ static int sdio_disable_cd(struct mmc_card *card) int ret; u8 ctrl; - if (!card->cccr.disable_cd) + if (!mmc_card_disable_cd(card)) return 0; ret = mmc_io_rw_direct(card, 0, 0, SDIO_CCCR_IF, 0, &ctrl); diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 317a0029e7d..2a7e54970c9 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -129,6 +129,7 @@ struct mmc_card { /* (missing CIA registers) */ #define MMC_QUIRK_BROKEN_CLK_GATING (1<<3) /* clock gating the sdio bus will make card fail */ #define MMC_QUIRK_NONSTD_FUNC_IF (1<<4) /* SDIO card has nonstd function interfaces */ +#define MMC_QUIRK_DISABLE_CD (1<<5) /* disconnect CD/DAT[3] resistor */ unsigned int erase_size; /* erase size in sectors */ unsigned int erase_shift; /* if erase unit is power 2 */ @@ -184,6 +185,11 @@ static inline int mmc_blksz_for_byte_mode(const struct mmc_card *c) return c->quirks & MMC_QUIRK_BLKSZ_FOR_BYTE_MODE; } +static inline int mmc_card_disable_cd(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_DISABLE_CD; +} + static inline int mmc_card_nonstd_func_interface(const struct mmc_card *c) { return c->quirks & MMC_QUIRK_NONSTD_FUNC_IF; -- 2.41.0