mmc: at91_mci: fix timeout errors

Fix two timeout errors, one for slow SDHC cards and one for slow users
while inserting SD cards.

Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Andrew Victor <avictor.za@gmail.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index 4e1b2e6288da..37efe6b3f12d 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -756,7 +756,8 @@ static void at91_mci_request(struct mmc_host *mmc, struct mmc_request *mrq)
         host->request = mrq;
         host->flags = 0;
 
-        mod_timer(&host->timer, jiffies +  HZ);
+        /* more than 1s timeout needed with slow SD cards */
+        mod_timer(&host->timer, jiffies +  msecs_to_jiffies(2000));
 
         at91_mci_process_next(host);
 }
@@ -944,7 +945,8 @@ static irqreturn_t at91_mmc_det_irq(int irq, void *_host)
                         pr_debug("****** Resetting SD-card bus width ******\n");
                         at91_mci_write(host, AT91_MCI_SDCR, at91_mci_read(host, AT91_MCI_SDCR) & ~AT91_MCI_SDCBUS);
                 }
-                mmc_detect_change(host->mmc, msecs_to_jiffies(100));
+                /* 0.5s needed because of early card detect switch firing */
+                mmc_detect_change(host->mmc, msecs_to_jiffies(500));
         }
         return IRQ_HANDLED;
 }