[media] v4l: vsp1: sru: Don't program intensity in control set handler

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The datasheet clearly states that all but a few registers can't be
modified when the device is running. Programming the intensity
parameters in the control set handler is thus prohibited. Program it
when starting the module instead.

This requires storing the intensity value internally as the module can
be started from the frame completion interrupt handler, and accessing
control values requires taking a mutex.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

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Laurent Pinchart 2015-11-01 12:19:42 -02:00 • committed by Mauro Carvalho Chehab

parent bd2fdd5aa9

commit d884a8b2a5

2 changed files with 11 additions and 26 deletions

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35

drivers/media/platform/vsp1/vsp1_sru.c

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2

drivers/media/platform/vsp1/vsp1_sru.h

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