media: rkisp1: Cache the currently active format

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The rkisp1-params driver assumes the data buffer format is the only
currently supported "fixed" one. The usage of the "fixed" format is
assumed when allocating memory for the scratch buffers and when
initializing the vb2 queue.

In order to prepare to support the "extensible" format beside the
existing "fixed" one, add support in the driver for both formats by
caching a pointer to the active one in the driver structure and use it
in the vb2 queue operations and subdev pad operations implementations.

Do not yet allow userspace to select between the two formats as the
support for the "extensible" format parsing will be introduced in a later
patch in the series.

While at it, document the un-documented ycbcr_encoding field of
struct rkisp1_params_ops.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

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This commit is contained in:

Jacopo Mondi 2024-08-08 22:40:58 +02:00 • committed by Laurent Pinchart

parent 092e276db9

commit 16398399b6

2 changed files with 38 additions and 22 deletions

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8

drivers/media/platform/rockchip/rkisp1/rkisp1-common.h

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52

drivers/media/platform/rockchip/rkisp1/rkisp1-params.c

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