tree 5efd05670171049ac9f0744f3a9de9ed8245b7dd
parent afbc0ae9a42e3a447365edc47ba4a206183566ac
author Nikhil Devshatwar <nikhil.nd@ti.com> 1479511225 -0200
committer Mauro Carvalho Chehab <mchehab@s-opensource.com> 1479808562 -0200

[media] media: ti-vpe: vpe: configure line mode separately

Current driver configures the line mode of the DEI clients
from the open function directly. Even if the newly created context
is not yet scheduled, it updates some of the VPDMA registers.
This causes a problem in multi instance use case where just opening
the m2m device second time causes the running job to stall. This
happens especially if the source buffers used are NV12.

While all other configuration is being written to context specific
shadow registers, only line mode configuration is happening directly.

As there is no shadow register for line mode configuration, it's better
to separate the config_mode setting and line_mode setting. Call the
new "set_line_modes" functions only when actually loading the mmrs.
This makes sure that no non-running job will write to the registers
directly.

Signed-off-by: Nikhil Devshatwar <nikhil.nd@ti.com>
Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>