On Thu, 25 Aug 2011 18:23:35 +0800, Kyungmin Park [off-list ref]  
wrote:

On Thu, Aug 25, 2011 at 5:54 PM, Chunhe Lan [off-list ref]  
wrote:

quoted

The mmc_delay() is a wrapper function for mdelay() and msleep().

   o mdelay() -- block the system when busy-waiting.
   o msleep() -- suspend the currently running task to enable CPU
                 to process other tasks, so it is non-blocking
                 regarding the whole system.

When the desired delay time is more than a period of timer interrupt,
just use msleep(). Change mdelay() to mmc_delay() to avoid chewing
CPU when busy wait.

Signed-off-by: Shengzhou Liu <redacted>
Signed-off-by: Chunhe Lan <redacted>
Cc: Chris Ball <redacted>
---
 drivers/mmc/host/sdhci.c |   11 ++++++-----
 1 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 0e02cc1..0cb5dc1 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c

@@ -27,6 +27,7 @@
 #include <linux/mmc/host.h>

 #include "sdhci.h"
+#include "../core/core.h"

Doesn't better to move the mmc_delay() to "include/linux/mmc/core.h"?
and include it.
I think It's not proper include syntax using relative path.

    Yes, your suggestion is very good.
    I will move the mmc_delay() to "include/linux/mmc/core.h" .

    Thanks.

    -Jack Lan

Thank you,
Kyungmin Park

quoted

 #define DRIVER_NAME "sdhci"