During suspend and resume, when omap_device deactivation and
activation is happening, the timekeeping subsystem has likely already
been suspended. Thus getnstimeofday() will fail and trigger a WARN().
Use read_persistent_clock() instead of getnstimeofday() to avoid this.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
d22926677f