[media] v4l: vsp1: Document calling context of vsp1_pipeline_propagate_alpha()

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The function can only be called from a s_stream handler as it requires a
valid display list context (due to calling vsp1_uds_set_alpha() which
writes to module registers). Document the requirement.

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 14:01:51 -02:00 • committed by Mauro Carvalho Chehab

parent 2b09ee4093

commit c9e645a534

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drivers/media/platform/vsp1/vsp1_pipe.c

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