The refactoring done as part of adding the core support for handling
waiting for slave transfer dropped a conditional which meant that we
started waiting for completion of all transfers, not just those that the
controller asked for. This caused hangs and massive delays on platforms
that don't need the core delay. Re-add the delay to fix this.
Fixes: 810923f3bf (spi: Deal with slaves that return from transfer_one() unfinished)
Change-Id: I8fe4c6d42bc7c64d9c9b6803d154ec169752283f
Reported-by: Tony Lindgren <tony@atomide.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
(cherry picked from commit d57e79601b)
ce3a66e6df