On Mon, 21 Dec 2015 01:28:08 +0300
Roman Volkov [off-list ref] wrote:

From: Roman Volkov <redacted>

vt8500 hangs in nanosleep() function, starting from commit
c6eb3f70d4482806dc2d3e1e3c7736f497b1d418, making the system unusable.
Per investigation, looks like set_next_event() now receives too small
delta and fails with -ETIME.

Google group discussion:
https://groups.google.com/forum/#!topic/vt8500-wm8505-linux-kernel/vDMF_mDOb1k

Roman Volkov (4):
  clocksource/vt8500: Use [read\write]l_relaxed()
  clocksource/vt8500: Remove the 'loops' variable
  clocksource/vt8500: Use MIN_OSCR_DELTA from PXA
  clocksource/vt8500: Add register R/W functions

 drivers/clocksource/vt8500_timer.c | 98
+++++++++++++++++++++++++++----------- 1 file changed, 69
insertions(+), 29 deletions(-)

Please note that vt8500 maintainer (Tony Prisk) was silent in the last
year. Any suggestions on this?

Regards,
Roman