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media: ti-vpe: cal: improve wait for CIO resetdone
authorTomi Valkeinen <tomi.valkeinen@ti.com>
Wed, 25 Mar 2020 12:15:08 +0000 (13:15 +0100)
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>
Tue, 14 Apr 2020 10:51:26 +0000 (12:51 +0200)
commitc17013918a217cea51ecc4925953d640b0dc8858
tree546966ecef726baf0cfe40d187d2d19f0db4fb51
parentcbdda28ab9302db941d0303d39aa775896e617e4
media: ti-vpe: cal: improve wait for CIO resetdone

Sometimes there is a timeout when waiting for the 'ComplexIO Reset
Done'.  Testing shows that sometimes we need to wait more than what the
current code does. It is not clear how long this wait can be, but it is
based on how quickly the sensor provides a valid clock, and how quickly
CAL syncs to it.

Change the code to make it more obvious how long we'll wait, and set a
wider range for usleep_range. Increase the timeout to 750ms.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
drivers/media/platform/ti-vpe/cal.c