[PATCH 0/4] clocksource/vt8500: Fix hangs in small delays

Roman Volkov v1ron at mail.ru
Sun Dec 20 14:28:08 PST 2015


From: Roman Volkov <rvolkov at v1ros.org>

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(-)

-- 
2.6.2




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