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IB/hfi1: Extend i2c timeout

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Allow a longer timeout for i2c due to clock stretching and
inaccurate jiffy timing when under a spin lock.  This timeout
is consistent with other i2c-algo-bit users.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Dean Luick 2016-09-25 07:41:25 -07:00 committed by Doug Ledford
parent f6aa783546
commit d5cf683e62
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/hfi1/qsfp.c
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@ -161,7 +161,7 @@ static struct hfi1_i2c_bus *init_i2c_bus(struct hfi1_devdata *dd,
bus->algo.getsda = hfi1_getsda;
bus->algo.getscl = hfi1_getscl;
bus->algo.udelay = 5;
bus->algo.timeout = usecs_to_jiffies(50);
bus->algo.timeout = usecs_to_jiffies(100000);
bus->algo.data = bus;
bus->adapter.owner = THIS_MODULE;