From 6d9af5af61a6c30676ef6f56a791d4036c92d249 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Wed, 17 Feb 2010 16:38:04 +0900 Subject: [PATCH] tmio_mmc: Use 100ms mmc_detect_change() delay This patch changes the tmio_mmc driver to wait 100ms before checking the card detect status. This type of delay is quite common among mmc drivers, it seems that most hardware platforms need to give the hardware some time to settle before checking card availabilty. Hotplug is half-broken without this patch on the sh7724 Ecovec board. Hot insertion seems ok but eject is never detected without this patch. Signed-off-by: Magnus Damm Signed-off-by: Samuel Ortiz --- drivers/mmc/host/tmio_mmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c index e2c0cc9a0ca6..7b2376d4050a 100644 --- a/drivers/mmc/host/tmio_mmc.c +++ b/drivers/mmc/host/tmio_mmc.c @@ -323,7 +323,7 @@ static irqreturn_t tmio_mmc_irq(int irq, void *devid) if (ireg & (TMIO_STAT_CARD_INSERT | TMIO_STAT_CARD_REMOVE)) { ack_mmc_irqs(host, TMIO_STAT_CARD_INSERT | TMIO_STAT_CARD_REMOVE); - mmc_detect_change(host->mmc, 0); + mmc_detect_change(host->mmc, msecs_to_jiffies(100)); } /* CRC and other errors */ -- 2.20.1