Commit d5cf683e authored Sep 25, 2016 by Dean Luick Committed by Doug Ledford Oct 02, 2016

IB/hfi1: Extend i2c timeout



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>

parent f6aa7835

drivers/infiniband/hw/hfi1/qsfp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;