media: allegro: fix reset if WAKEUP has not been set properly

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The Zynq UltraScale+ Devices Register Reference states that the WAKEUP
bit "should be set to 0 after the MCU sleep status bit gets back to 0."
If this is not done, the mcu is not going to sleep on reset and fail the
reset.

Set WAKEUP to 0 before triggering a reset to make sure that the reset is
successful.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

...

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Michael Tretter 2020-03-16 16:26:27 +01:00 • committed by Mauro Carvalho Chehab

parent c32c815503

commit dfba38c841

1 changed files with 8 additions and 0 deletions

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drivers/staging/media/allegro-dvt/allegro-core.c

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