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media: atomisp: gc0310: Add selection API support

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Add support for the selection API as expected by libcamera.

Note the driver only supports a single fixed resolution and
no cropping, so this is a simple read-only implementation.

Signed-off-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20250517114106.43494-7-hdegoede@redhat.com
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Hans de Goede
2025-07-06 11:47:22 +02:00
committed by Mauro Carvalho Chehab
parent 782101916b
commit 5446808037
1 changed files with 26 additions and 1 deletions
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27
drivers/staging/media/atomisp/i2c/atomisp-gc0310.c
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@@ -3,7 +3,7 @@
* Support for GalaxyCore GC0310 VGA camera sensor.
*
* Copyright (c) 2013 Intel Corporation. All Rights Reserved.
* Copyright (c) 2023 Hans de Goede <hdegoede@redhat.com>
* Copyright (c) 2023-2025 Hans de Goede <hansg@kernel.org>
*/
#include <linux/delay.h>
@@ -352,6 +352,28 @@ static int gc0310_get_fmt(struct v4l2_subdev *sd,
return 0;
}
static int gc0310_get_selection(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state,
struct v4l2_subdev_selection *sel)
{
/* Only the single fixed 656x496 mode is supported, without croping */
switch (sel->target) {
case V4L2_SEL_TGT_CROP:
case V4L2_SEL_TGT_CROP_BOUNDS:
case V4L2_SEL_TGT_CROP_DEFAULT:
case V4L2_SEL_TGT_NATIVE_SIZE:
sel->r.top = 0;
sel->r.left = 0;
sel->r.width = GC0310_NATIVE_WIDTH;
sel->r.height = GC0310_NATIVE_HEIGHT;
break;
default:
return -EINVAL;
}
return 0;
}
static int gc0310_detect(struct gc0310_device *sensor)
{
struct i2c_client *client = v4l2_get_subdevdata(&sensor->sd);
@@ -509,6 +531,8 @@ static const struct v4l2_subdev_pad_ops gc0310_pad_ops = {
.enum_frame_size = gc0310_enum_frame_size,
.get_fmt = gc0310_get_fmt,
.set_fmt = gc0310_set_fmt,
.get_selection = gc0310_get_selection,
.set_selection = gc0310_get_selection,
.get_frame_interval = gc0310_get_frame_interval,
};
@@ -671,5 +695,6 @@ static struct i2c_driver gc0310_driver = {
module_i2c_driver(gc0310_driver);
MODULE_AUTHOR("Lai, Angie <angie.lai@intel.com>");
MODULE_AUTHOR("Hans de Goede <hansg@kernel.org>");
MODULE_DESCRIPTION("A low-level driver for GalaxyCore GC0310 sensors");
MODULE_LICENSE("GPL");