From: Dave Airlie Date: Tue, 5 May 2009 06:39:24 +0000 (+0200) Subject: i2c-algo-bit: Fix timeout test X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0cdba07bb23cdd3e0d64357ec3d983e6b75e541f;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git i2c-algo-bit: Fix timeout test When fetching DDC using i2c algo bit, we were often seeing timeouts before getting valid EDID on a retry. The VESA spec states 2ms is the DDC timeout, so when this translates into 1 jiffie and we are close to the end of the time period, it could return with a timeout less than 2ms. Change this code to use time_after instead of time_after_eq. Signed-off-by: Dave Airlie Signed-off-by: Jean Delvare --- diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c index d420cc5f5633..e25e13980af3 100644 --- a/drivers/i2c/algos/i2c-algo-bit.c +++ b/drivers/i2c/algos/i2c-algo-bit.c @@ -104,7 +104,7 @@ static int sclhi(struct i2c_algo_bit_data *adap) * chips may hold it low ("clock stretching") while they * are processing data internally. */ - if (time_after_eq(jiffies, start + adap->timeout)) + if (time_after(jiffies, start + adap->timeout)) return -ETIMEDOUT; cond_resched(); }