From 74bc80931c8bc34d24545f992a35349ad548897c Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 29 Jul 2010 15:58:59 +0100 Subject: ARM: Fix Versatile/Realview/VExpress MMC card detection sense The MMC card detection sense has become really confused with negations at various levels, leading to some platforms not detecting inserted cards. Fix this by converting everything to positive logic throughout, thereby getting rid of these negations. Signed-off-by: Russell King --- drivers/mmc/host/mmci.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/mmc/host') diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 4917af9..2ed435b 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -539,9 +539,13 @@ static int mmci_get_cd(struct mmc_host *mmc) if (host->gpio_cd == -ENOSYS) status = host->plat->status(mmc_dev(host->mmc)); else - status = gpio_get_value(host->gpio_cd); + status = !gpio_get_value(host->gpio_cd); - return !status; + /* + * Use positive logic throughout - status is zero for no card, + * non-zero for card inserted. + */ + return status; } static const struct mmc_host_ops mmci_ops = { -- cgit v1.1