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media: pisp_be: Use clamp() and define max sizes

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Use the clamp() function from minmax.h and provide a define for the max
sizes as they will be used in subsequent patches.

Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
This commit is contained in:
Jacopo Mondi 2025-06-12 16:58:21 +02:00 committed by Hans Verkuil
parent e9bb2eacc7
commit aa89281bbc
2 changed files with 12 additions and 8 deletions
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11
drivers/media/platform/raspberrypi/pisp_be/pisp_be.c
View File

@ -9,6 +9,7 @@
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/lockdep.h>
#include <linux/minmax.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
@ -1112,10 +1113,12 @@ static void pispbe_try_format(struct v4l2_format *f, struct pispbe_node *node)
f->fmt.pix_mp.pixelformat = fmt->fourcc;
f->fmt.pix_mp.num_planes = fmt->num_planes;
f->fmt.pix_mp.field = V4L2_FIELD_NONE;
f->fmt.pix_mp.width = max(min(f->fmt.pix_mp.width, 65536u),
PISP_BACK_END_MIN_TILE_WIDTH);
f->fmt.pix_mp.height = max(min(f->fmt.pix_mp.height, 65536u),
PISP_BACK_END_MIN_TILE_HEIGHT);
f->fmt.pix_mp.width = clamp(f->fmt.pix_mp.width,
PISP_BACK_END_MIN_TILE_WIDTH,
PISP_BACK_END_MAX_TILE_WIDTH);
f->fmt.pix_mp.height = clamp(f->fmt.pix_mp.height,
PISP_BACK_END_MIN_TILE_HEIGHT,
PISP_BACK_END_MAX_TILE_HEIGHT);
/*
* Fill in the actual colour space when the requested one was

9
include/uapi/linux/media/raspberrypi/pisp_be_config.h
View File

@ -21,10 +21,11 @@
/* preferred byte alignment for outputs */
#define PISP_BACK_END_OUTPUT_MAX_ALIGN 64u
/* minimum allowed tile width anywhere in the pipeline */
#define PISP_BACK_END_MIN_TILE_WIDTH 16u
/* minimum allowed tile width anywhere in the pipeline */
#define PISP_BACK_END_MIN_TILE_HEIGHT 16u
/* minimum allowed tile sizes anywhere in the pipeline */
#define PISP_BACK_END_MIN_TILE_WIDTH 16u
#define PISP_BACK_END_MIN_TILE_HEIGHT 16u
#define PISP_BACK_END_MAX_TILE_WIDTH 65536u
#define PISP_BACK_END_MAX_TILE_HEIGHT 65536u
#define PISP_BACK_END_NUM_OUTPUTS 2
#define PISP_BACK_END_HOG_OUTPUT 1