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spi/dw_spi: bug fix in wait_till_not_busy() 

Make the driver wait at least  for 1 jiffie before issuing the
warning, no matter what HZ is set to

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Feng Tang 2010-01-20 13:49:45 -07:00 committed by Grant Likely
parent fa0fcde66a
commit b490e3704c
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/dw_spi.c
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@ -161,7 +161,7 @@ static inline void mrst_spi_debugfs_remove(struct dw_spi *dws)
static void wait_till_not_busy(struct dw_spi *dws)
{
unsigned long end = jiffies + usecs_to_jiffies(1000);
unsigned long end = jiffies + 1 + usecs_to_jiffies(1000);
while (time_before(jiffies, end)) {
if (!(dw_readw(dws, sr) & SR_BUSY))