media: rcar-vin: Remove superfluous starting state

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The STARTING state is superfluous and can be replaced with a check of
the sequence counter. The design idea is that the first buffer returned
from the driver have to come from the first hardware buffer slot.
Failing this the first 3 buffers queued to the device can be returned
out-of-order.

But it's much clearer to check the sequence counter to only return the
first buffer if it comes from hardware slot 0 then it is to carry around
an extra state just for this. Remove the unneeded state and replace it
with a simpler check.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Tested-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>

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Niklas Söderlund 2025-02-10 18:56:13 +01:00 • committed by Hans Verkuil

parent 1dadd89b58

commit 25482a986e

2 changed files with 2 additions and 5 deletions

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5

drivers/media/platform/renesas/rcar-vin/rcar-dma.c

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2

drivers/media/platform/renesas/rcar-vin/rcar-vin.h

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