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media: i2c: Extend .get_selection() for ov7251 

Extend the .get_selection() callback to support other values for
sel->target, primarily to satisfy libcamera's requirements.

Signed-off-by: Daniel Scally <djrscally@gmail.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Daniel Scally 2022-05-06 01:03:59 +02:00 committed by Mauro Carvalho Chehab
parent ad1ea3aa08
commit 77ec83cdc8
1 changed files with 29 additions and 6 deletions
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35
drivers/media/i2c/ov7251.c
View File

@ -54,6 +54,13 @@
#define OV7251_PLL2_SYS_DIV_REG 0x309a
#define OV7251_PLL2_ADC_DIV_REG 0x309b
#define OV7251_NATIVE_WIDTH 656
#define OV7251_NATIVE_HEIGHT 496
#define OV7251_ACTIVE_START_LEFT 4
#define OV7251_ACTIVE_START_TOP 4
#define OV7251_ACTIVE_WIDTH 648
#define OV7251_ACTIVE_HEIGHT 488
struct reg_value {
u16 reg;
u8 val;
@ -1248,13 +1255,29 @@ static int ov7251_get_selection(struct v4l2_subdev *sd,
{
struct ov7251 *ov7251 = to_ov7251(sd);
if (sel->target != V4L2_SEL_TGT_CROP)
return -EINVAL;
switch (sel->target) {
case V4L2_SEL_TGT_CROP_DEFAULT:
case V4L2_SEL_TGT_CROP:
mutex_lock(&ov7251->lock);
sel->r = *__ov7251_get_pad_crop(ov7251, sd_state, sel->pad,
sel->which);
mutex_unlock(&ov7251->lock);
sel->r = *__ov7251_get_pad_crop(ov7251, sd_state, sel->pad,
sel->which);
mutex_unlock(&ov7251->lock);
break;
case V4L2_SEL_TGT_NATIVE_SIZE:
sel->r.top = 0;
sel->r.left = 0;
sel->r.width = OV7251_NATIVE_WIDTH;
sel->r.height = OV7251_NATIVE_HEIGHT;
break;
case V4L2_SEL_TGT_CROP_BOUNDS:
sel->r.top = OV7251_ACTIVE_START_TOP;
sel->r.left = OV7251_ACTIVE_START_LEFT;
sel->r.width = OV7251_ACTIVE_WIDTH;
sel->r.height = OV7251_ACTIVE_HEIGHT;
break;
default:
return -EINVAL;
}
return 0;
}