This is a note to let you know that I've just added the patch titled
media: ov2740: Fix hts value
to the 6.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
media-ov2740-fix-hts-value.patch
and it can be found in the queue-6.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e46a581723fd34d4854fe51057748b6d737ee941
Author: Hans de Goede <hdegoede@xxxxxxxxxx>
Date: Mon Dec 4 13:39:42 2023 +0100
media: ov2740: Fix hts value
[ Upstream commit 3735228bbe3511f844e03dfcc4003fadb59dde23 ]
HTS must be more then width, so the 1080 value clearly is wrong,
this is then corrected with some weird math dividing clocks in
to_pixels_per_line() which results in the hts getting multiplied by 2,
resulting in 2160.
Instead just directly set hts to the correct value of 2160 and
drop to_pixels_per_line().
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/media/i2c/ov2740.c b/drivers/media/i2c/ov2740.c
index 24e468485fbf..6be22586c3d2 100644
--- a/drivers/media/i2c/ov2740.c
+++ b/drivers/media/i2c/ov2740.c
@@ -310,7 +310,7 @@ static const struct ov2740_mode supported_modes[] = {
{
.width = 1932,
.height = 1092,
- .hts = 1080,
+ .hts = 2160,
.vts_def = OV2740_VTS_DEF,
.vts_min = OV2740_VTS_MIN,
.reg_list = {
@@ -357,15 +357,6 @@ static u64 to_pixel_rate(u32 f_index)
return pixel_rate;
}
-static u64 to_pixels_per_line(u32 hts, u32 f_index)
-{
- u64 ppl = hts * to_pixel_rate(f_index);
-
- do_div(ppl, OV2740_SCLK);
-
- return ppl;
-}
-
static int ov2740_read_reg(struct ov2740 *ov2740, u16 reg, u16 len, u32 *val)
{
struct i2c_client *client = v4l2_get_subdevdata(&ov2740->sd);
@@ -598,8 +589,7 @@ static int ov2740_init_controls(struct ov2740 *ov2740)
V4L2_CID_VBLANK, vblank_min,
vblank_max, 1, vblank_default);
- h_blank = to_pixels_per_line(cur_mode->hts, cur_mode->link_freq_index);
- h_blank -= cur_mode->width;
+ h_blank = cur_mode->hts - cur_mode->width;
ov2740->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov2740_ctrl_ops,
V4L2_CID_HBLANK, h_blank, h_blank, 1,
h_blank);
@@ -842,8 +832,7 @@ static int ov2740_set_format(struct v4l2_subdev *sd,
mode->vts_min - mode->height,
OV2740_VTS_MAX - mode->height, 1, vblank_def);
__v4l2_ctrl_s_ctrl(ov2740->vblank, vblank_def);
- h_blank = to_pixels_per_line(mode->hts, mode->link_freq_index) -
- mode->width;
+ h_blank = mode->hts - mode->width;
__v4l2_ctrl_modify_range(ov2740->hblank, h_blank, h_blank, 1, h_blank);
return 0;
