cxl: Allow initialization on timebase sync failures
authorFrederic Barrat <fbarrat@linux.vnet.ibm.com>
Mon, 21 Mar 2016 19:32:48 +0000 (14:32 -0500)
committerMichael Ellerman <mpe@ellerman.id.au>
Fri, 22 Apr 2016 11:45:44 +0000 (21:45 +1000)
commite009a7e858fed215cb4eed5174a31cadd42d8797
tree374b3df8a670dfbc72c4eb960f6b488a916958ea
parentbb62bad623deb7952aef13fcbe065fde5d1f03e5
cxl: Allow initialization on timebase sync failures

Failure to synchronize the PSL timebase currently prevents the
initialization of the cxl card, thus rendering the card useless. This
is too extreme for a feature which is rarely used, if at all. No
hardware AFUs or software is currently using PSL timebase.

This patch still tries to synchronize the PSL timebase when the card
is initialized, but ignores the error if it can't. Instead, it reports
a status via /sys.

Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Documentation/ABI/testing/sysfs-class-cxl
drivers/misc/cxl/cxl.h
drivers/misc/cxl/guest.c
drivers/misc/cxl/pci.c
drivers/misc/cxl/sysfs.c