Rename min_buffers_needed into min_queued_buffers and update
the documentation about it.
Signed-off-by: Benjamin Gaignard
CC: Laurent Pinchart
CC: Mauro Carvalho Chehab
CC: Shawn Guo
CC: Sascha Hauer
CC: Pengutronix Kernel Team
CC: Fabio Estevam
CC: NXP Linux Team
CC: Hugues Fruchet
CC:
zoran driver use a dma engine and needs a minimum number of
buffers to be present before start streaming.
That is 'min_dma_buffers_needed' purpose so use it instead
of 'min_buffers_needed' field.
Signed-off-by: Benjamin Gaignard
CC: Corentin Labbe
CC: mjpeg-users@lists.sourceforge.net
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