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Message-ID: <20260115031207.52840-1-karthikey3608@gmail.com>
Date: Thu, 15 Jan 2026 08:42:07 +0530
From: Karthikey Kadati <karthikey3608@...il.com>
To: andy@...nel.org,
hansg@...nel.org,
mchehab@...nel.org,
gregkh@...uxfoundation.org
Cc: sakari.ailus@...ux.intel.com,
linux-kernel@...r.kernel.org,
linux-media@...r.kernel.org,
linux-staging@...ts.linux.dev,
karthikey3608@...il.com
Subject: [PATCH v4] media: atomisp: replace ia_css_region with v4l2_rect
The struct ia_css_region definition is redundant as struct v4l2_rect
provides the same functionality (left, top, width, height) and is the
standard V4L2 type.
Replace usage of ia_css_region with v4l2_rect in ia_css_dz_config
and remove the definition of ia_css_region from ia_css_types.h.
Also remove historical comments referencing the addition of zoom_region
and include <linux/videodev2.h> to support the v4l2_rect type.
Signed-off-by: Karthikey Kadati <karthikey3608@...il.com>
---
Changes in v4:
- Reverted unrelated Dev_dbg removal and indentation changes in atomisp_cmd.c.
- Fixed struct initializer in sh_css_params.c to be flat (fixes static analysis warnings).
- Fixed line wrap issues and operator placement in atomisp_cmd.c (fixes checkpatch warnings), ensuring no unrelated lines were touched.
- Added blank line after <linux/videodev2.h> in ia_css_types.h.
Changes in v3:
- Rebased on linux-media/next to resolve conflict with nested structs.
- Replaced usage of zoom_region.origin/resolution with direct members.
Changes in v2:
- Removed unrelated changes to drivers/staging/sm750fb/ddk750_swi2c.c.
- Removed historical comments in ia_css_types.h.
- Corrected header ordering.
.../staging/media/atomisp/pci/atomisp_cmd.c | 122 +++++++++---------
.../staging/media/atomisp/pci/ia_css_types.h | 14 +-
.../staging/media/atomisp/pci/sh_css_params.c | 18 +--
3 files changed, 69 insertions(+), 85 deletions(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 3a4eb4f6d3be..1651ef4eafe1 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -1762,15 +1762,13 @@ int atomisp_calculate_real_zoom_region(struct atomisp_sub_device *asd,
return -EINVAL;
}
- if (dz_config->zoom_region.resolution.width
- == asd->sensor_array_res.width
- || dz_config->zoom_region.resolution.height
- == asd->sensor_array_res.height) {
+ if (dz_config->zoom_region.width == asd->sensor_array_res.width ||
+ dz_config->zoom_region.height == asd->sensor_array_res.height) {
/*no need crop region*/
- dz_config->zoom_region.origin.x = 0;
- dz_config->zoom_region.origin.y = 0;
- dz_config->zoom_region.resolution.width = eff_res.width;
- dz_config->zoom_region.resolution.height = eff_res.height;
+ dz_config->zoom_region.left = 0;
+ dz_config->zoom_region.top = 0;
+ dz_config->zoom_region.width = eff_res.width;
+ dz_config->zoom_region.height = eff_res.height;
return 0;
}
@@ -1781,18 +1779,14 @@ int atomisp_calculate_real_zoom_region(struct atomisp_sub_device *asd,
*/
if (!IS_ISP2401) {
- dz_config->zoom_region.origin.x = dz_config->zoom_region.origin.x
- * eff_res.width
- / asd->sensor_array_res.width;
- dz_config->zoom_region.origin.y = dz_config->zoom_region.origin.y
- * eff_res.height
- / asd->sensor_array_res.height;
- dz_config->zoom_region.resolution.width = dz_config->zoom_region.resolution.width
- * eff_res.width
- / asd->sensor_array_res.width;
- dz_config->zoom_region.resolution.height = dz_config->zoom_region.resolution.height
- * eff_res.height
- / asd->sensor_array_res.height;
+ dz_config->zoom_region.left = dz_config->zoom_region.left *
+ eff_res.width / asd->sensor_array_res.width;
+ dz_config->zoom_region.top = dz_config->zoom_region.top *
+ eff_res.height / asd->sensor_array_res.height;
+ dz_config->zoom_region.width = dz_config->zoom_region.width *
+ eff_res.width / asd->sensor_array_res.width;
+ dz_config->zoom_region.height = dz_config->zoom_region.height *
+ eff_res.height / asd->sensor_array_res.height;
/*
* Set same ratio of crop region resolution and current pipe output
* resolution
@@ -1819,62 +1813,62 @@ int atomisp_calculate_real_zoom_region(struct atomisp_sub_device *asd,
- asd->sensor_array_res.width
* out_res.height / out_res.width;
h_offset = h_offset / 2;
- if (dz_config->zoom_region.origin.y < h_offset)
- dz_config->zoom_region.origin.y = 0;
+ if (dz_config->zoom_region.top < h_offset)
+ dz_config->zoom_region.top = 0;
else
- dz_config->zoom_region.origin.y = dz_config->zoom_region.origin.y - h_offset;
+ dz_config->zoom_region.top =
+ dz_config->zoom_region.top - h_offset;
w_offset = 0;
} else {
w_offset = asd->sensor_array_res.width
- asd->sensor_array_res.height
* out_res.width / out_res.height;
w_offset = w_offset / 2;
- if (dz_config->zoom_region.origin.x < w_offset)
- dz_config->zoom_region.origin.x = 0;
+ if (dz_config->zoom_region.left < w_offset)
+ dz_config->zoom_region.left = 0;
else
- dz_config->zoom_region.origin.x = dz_config->zoom_region.origin.x - w_offset;
+ dz_config->zoom_region.left =
+ dz_config->zoom_region.left - w_offset;
h_offset = 0;
}
- dz_config->zoom_region.origin.x = dz_config->zoom_region.origin.x
- * eff_res.width
- / (asd->sensor_array_res.width - 2 * w_offset);
- dz_config->zoom_region.origin.y = dz_config->zoom_region.origin.y
- * eff_res.height
- / (asd->sensor_array_res.height - 2 * h_offset);
- dz_config->zoom_region.resolution.width = dz_config->zoom_region.resolution.width
- * eff_res.width
- / (asd->sensor_array_res.width - 2 * w_offset);
- dz_config->zoom_region.resolution.height = dz_config->zoom_region.resolution.height
- * eff_res.height
- / (asd->sensor_array_res.height - 2 * h_offset);
- }
-
- if (out_res.width * dz_config->zoom_region.resolution.height
- > dz_config->zoom_region.resolution.width * out_res.height) {
- dz_config->zoom_region.resolution.height =
- dz_config->zoom_region.resolution.width
- * out_res.height / out_res.width;
+ dz_config->zoom_region.left = dz_config->zoom_region.left *
+ eff_res.width /
+ (asd->sensor_array_res.width - 2 * w_offset);
+ dz_config->zoom_region.top = dz_config->zoom_region.top *
+ eff_res.height /
+ (asd->sensor_array_res.height - 2 * h_offset);
+ dz_config->zoom_region.width = dz_config->zoom_region.width *
+ eff_res.width /
+ (asd->sensor_array_res.width - 2 * w_offset);
+ dz_config->zoom_region.height = dz_config->zoom_region.height *
+ eff_res.height /
+ (asd->sensor_array_res.height - 2 * h_offset);
+ }
+
+ if (out_res.width * dz_config->zoom_region.height >
+ dz_config->zoom_region.width * out_res.height) {
+ dz_config->zoom_region.height = dz_config->zoom_region.width *
+ out_res.height / out_res.width;
} else {
- dz_config->zoom_region.resolution.width =
- dz_config->zoom_region.resolution.height
- * out_res.width / out_res.height;
+ dz_config->zoom_region.width = dz_config->zoom_region.height *
+ out_res.width / out_res.height;
}
dev_dbg(asd->isp->dev,
"%s crop region:(%d,%d),(%d,%d) eff_res(%d, %d) array_size(%d,%d) out_res(%d, %d)\n",
- __func__, dz_config->zoom_region.origin.x,
- dz_config->zoom_region.origin.y,
- dz_config->zoom_region.resolution.width,
- dz_config->zoom_region.resolution.height,
+ __func__, dz_config->zoom_region.left,
+ dz_config->zoom_region.top,
+ dz_config->zoom_region.width,
+ dz_config->zoom_region.height,
eff_res.width, eff_res.height,
asd->sensor_array_res.width,
asd->sensor_array_res.height,
out_res.width, out_res.height);
- if ((dz_config->zoom_region.origin.x +
- dz_config->zoom_region.resolution.width
+ if ((dz_config->zoom_region.left +
+ dz_config->zoom_region.width
> eff_res.width) ||
- (dz_config->zoom_region.origin.y +
- dz_config->zoom_region.resolution.height
+ (dz_config->zoom_region.top +
+ dz_config->zoom_region.height
> eff_res.height))
return -EINVAL;
@@ -1899,10 +1893,10 @@ static bool atomisp_check_zoom_region(
config.width = asd->sensor_array_res.width;
config.height = asd->sensor_array_res.height;
- w = dz_config->zoom_region.origin.x +
- dz_config->zoom_region.resolution.width;
- h = dz_config->zoom_region.origin.y +
- dz_config->zoom_region.resolution.height;
+ w = dz_config->zoom_region.left +
+ dz_config->zoom_region.width;
+ h = dz_config->zoom_region.top +
+ dz_config->zoom_region.height;
if ((w <= config.width) && (h <= config.height) && w > 0 && h > 0)
flag = true;
@@ -1910,10 +1904,10 @@ static bool atomisp_check_zoom_region(
/* setting error zoom region */
dev_err(asd->isp->dev,
"%s zoom region ERROR:dz_config:(%d,%d),(%d,%d)array_res(%d, %d)\n",
- __func__, dz_config->zoom_region.origin.x,
- dz_config->zoom_region.origin.y,
- dz_config->zoom_region.resolution.width,
- dz_config->zoom_region.resolution.height,
+ __func__, dz_config->zoom_region.left,
+ dz_config->zoom_region.top,
+ dz_config->zoom_region.width,
+ dz_config->zoom_region.height,
config.width, config.height);
return flag;
diff --git a/drivers/staging/media/atomisp/pci/ia_css_types.h b/drivers/staging/media/atomisp/pci/ia_css_types.h
index 676d7e20b282..2b7db9cda23a 100644
--- a/drivers/staging/media/atomisp/pci/ia_css_types.h
+++ b/drivers/staging/media/atomisp/pci/ia_css_types.h
@@ -15,6 +15,8 @@
* directly but still need to forward parameters for it.
*/
+#include <linux/videodev2.h>
+
#include <type_support.h>
#include "ia_css_frac.h"
@@ -427,14 +429,6 @@ struct ia_css_point {
s32 y; /** y coordinate */
};
-/**
- * This specifies the region
- */
-struct ia_css_region {
- struct ia_css_point origin; /** Starting point coordinates for the region */
- struct ia_css_resolution resolution; /** Region resolution */
-};
-
/**
* Digital zoom:
* This feature is currently available only for video, but will become
@@ -442,7 +436,7 @@ struct ia_css_region {
* Set the digital zoom factor, this is a logarithmic scale. The actual zoom
* factor will be 64/x.
* Setting dx or dy to 0 disables digital zoom for that direction.
- * New API change for Digital zoom:(added struct ia_css_region zoom_region)
+ *
* zoom_region specifies the origin of the zoom region and width and
* height of that region.
* origin : This is the coordinate (x,y) within the effective input resolution
@@ -455,7 +449,7 @@ struct ia_css_region {
struct ia_css_dz_config {
u32 dx; /** Horizontal zoom factor */
u32 dy; /** Vertical zoom factor */
- struct ia_css_region zoom_region; /** region for zoom */
+ struct v4l2_rect zoom_region; /** region for zoom */
};
/* The still capture mode, this can be RAW (simply copy sensor input to DDR),
diff --git a/drivers/staging/media/atomisp/pci/sh_css_params.c b/drivers/staging/media/atomisp/pci/sh_css_params.c
index 11d62313c908..23e08142bf09 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_params.c
+++ b/drivers/staging/media/atomisp/pci/sh_css_params.c
@@ -657,11 +657,7 @@ static const int zoom_table[4][HRT_GDC_N] = {
static const struct ia_css_dz_config default_dz_config = {
HRT_GDC_N,
HRT_GDC_N,
- {
- \
- {0, 0}, \
- {0, 0}, \
- }
+ { 0, 0, 0, 0 }
};
static const struct ia_css_vector default_motion_config = {
@@ -1210,8 +1206,8 @@ ia_css_process_zoom_and_motion(
}
assert(stage->stage_num < SH_CSS_MAX_STAGES);
- if (params->dz_config.zoom_region.resolution.width == 0 &&
- params->dz_config.zoom_region.resolution.height == 0) {
+ if (params->dz_config.zoom_region.width == 0 &&
+ params->dz_config.zoom_region.height == 0) {
sh_css_update_uds_and_crop_info(
&info->sp,
&binary->in_frame_info,
@@ -4096,10 +4092,10 @@ sh_css_update_uds_and_crop_info_based_on_zoom_region(
assert(motion_vector);
assert(uds);
assert(sp_out_crop_pos);
- x0 = zoom->zoom_region.origin.x;
- y0 = zoom->zoom_region.origin.y;
- x1 = zoom->zoom_region.resolution.width + x0;
- y1 = zoom->zoom_region.resolution.height + y0;
+ x0 = zoom->zoom_region.left;
+ y0 = zoom->zoom_region.top;
+ x1 = zoom->zoom_region.width + x0;
+ y1 = zoom->zoom_region.height + y0;
if ((x0 > x1) || (y0 > y1) || (x1 > pipe_in_res.width) || (y1 > pipe_in_res.height))
return -EINVAL;
--
2.43.0
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