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media: i2c: ov5647: Add V4L2_CID_LINK_FREQUENCY control

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The link frequency can vary between modes, so add it as a control.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Jai Luthra <jai.luthra@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Dave Stevenson 2025-12-22 13:45:41 +05:30 committed by Hans Verkuil
parent dda59680f2
commit c6e115144b
1 changed files with 24 additions and 1 deletions
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25
drivers/media/i2c/ov5647.c
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@ -97,6 +97,13 @@ static const char * const ov5647_supply_names[] = {
#define OV5647_NUM_SUPPLIES ARRAY_SIZE(ov5647_supply_names)
#define FREQ_INDEX_FULL 0
#define FREQ_INDEX_VGA 1
static const s64 ov5647_link_freqs[] = {
[FREQ_INDEX_FULL] = 218750000,
[FREQ_INDEX_VGA] = 145833300,
};
struct regval_list {
u16 addr;
u8 data;
@ -106,6 +113,7 @@ struct ov5647_mode {
struct v4l2_mbus_framefmt format;
struct v4l2_rect crop;
u64 pixel_rate;
unsigned int link_freq_index;
int hts;
int vts;
const struct regval_list *reg_list;
@ -128,6 +136,7 @@ struct ov5647 {
struct v4l2_ctrl *exposure;
struct v4l2_ctrl *hflip;
struct v4l2_ctrl *vflip;
struct v4l2_ctrl *link_freq;
};
static inline struct ov5647 *to_sensor(struct v4l2_subdev *sd)
@ -376,6 +385,7 @@ static const struct ov5647_mode ov5647_modes[] = {
.height = 1944
},
.pixel_rate = 87500000,
.link_freq_index = FREQ_INDEX_FULL,
.hts = 2844,
.vts = 0x7b0,
.reg_list = ov5647_2592x1944_10bpp,
@ -397,6 +407,7 @@ static const struct ov5647_mode ov5647_modes[] = {
.height = 1080,
},
.pixel_rate = 87500000,
.link_freq_index = FREQ_INDEX_FULL,
.hts = 2416,
.vts = 0x450,
.reg_list = ov5647_1080p30_10bpp,
@ -418,6 +429,7 @@ static const struct ov5647_mode ov5647_modes[] = {
.height = 1944,
},
.pixel_rate = 87500000,
.link_freq_index = FREQ_INDEX_FULL,
.hts = 1896,
.vts = 0x59b,
.reg_list = ov5647_2x2binned_10bpp,
@ -439,6 +451,7 @@ static const struct ov5647_mode ov5647_modes[] = {
.height = 1920,
},
.pixel_rate = 58333000,
.link_freq_index = FREQ_INDEX_VGA,
.hts = 1852,
.vts = 0x1f8,
.reg_list = ov5647_640x480_10bpp,
@ -927,6 +940,8 @@ static int ov5647_set_pad_fmt(struct v4l2_subdev *sd,
sensor->exposure->minimum,
exposure_max, sensor->exposure->step,
exposure_def);
__v4l2_ctrl_s_ctrl(sensor->link_freq, mode->link_freq_index);
}
*fmt = mode->format;
/* The code we pass back must reflect the current h/vflips. */
@ -1231,7 +1246,7 @@ static int ov5647_init_controls(struct ov5647 *sensor)
int hblank, exposure_max, exposure_def;
struct device *dev = &client->dev;
v4l2_ctrl_handler_init(&sensor->ctrls, 13);
v4l2_ctrl_handler_init(&sensor->ctrls, 14);
v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
V4L2_CID_AUTOGAIN, 0, 1, 1, 0);
@ -1287,6 +1302,14 @@ static int ov5647_init_controls(struct ov5647 *sensor)
sensor->vflip = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
V4L2_CID_VFLIP, 0, 1, 1, 0);
sensor->link_freq =
v4l2_ctrl_new_int_menu(&sensor->ctrls, NULL, V4L2_CID_LINK_FREQ,
ARRAY_SIZE(ov5647_link_freqs) - 1,
sensor->mode->link_freq_index,
ov5647_link_freqs);
if (sensor->link_freq)
sensor->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
v4l2_fwnode_device_parse(dev, &props);
v4l2_ctrl_new_fwnode_properties(&sensor->ctrls, &ov5647_ctrl_ops,