* [PATCH] i2c: i2c-s3c2410: Add a cpu_relax() to busy wait for bus idle
@ 2011-12-09 12:55 Mark Brown
0 siblings, 0 replies; only message in thread
From: Mark Brown @ 2011-12-09 12:55 UTC (permalink / raw)
To: Jean Delvare, Ben Dooks, Kukjin Kim
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-i2c-u79uwXL29TY76Z2rM5mHXA,
patches-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E, Mark Brown
Be a bit more friendly.
Signed-off-by: Mark Brown <broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
---
drivers/i2c/busses/i2c-s3c2410.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 065c316..acda56e1 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -535,6 +535,7 @@ static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c,
/* first, try busy waiting briefly */
do {
+ cpu_relax();
iicstat = readl(i2c->regs + S3C2410_IICSTAT);
} while ((iicstat & S3C2410_IICSTAT_START) && --spins);
--
1.7.7.3
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