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media: ov5647: Support V4L2_CID_PIXEL_RATE 

Clients need to know the pixel rate in order to compute exposure
and frame rate values. Advertise it.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Dave Stevenson 2020-11-19 17:35:41 +01:00 committed by Mauro Carvalho Chehab
parent 7ef761a001
commit 911f4516ee
1 changed files with 32 additions and 11 deletions
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43
drivers/media/i2c/ov5647.c
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@ -76,6 +76,7 @@ struct regval_list {
struct ov5647_mode {
struct v4l2_mbus_framefmt format;
struct v4l2_rect crop;
u64 pixel_rate;
const struct regval_list *reg_list;
unsigned int num_regs;
};
@ -96,6 +97,7 @@ struct ov5647 {
bool clock_ncont;
struct v4l2_ctrl_handler ctrls;
const struct ov5647_mode *mode;
struct v4l2_ctrl *pixel_rate;
};
static inline struct ov5647 *to_sensor(struct v4l2_subdev *sd)
@ -582,6 +584,7 @@ static const struct ov5647_mode ov5647_8bpp_modes[] = {
.width = 1280,
.height = 960,
},
.pixel_rate = 77291670,
.reg_list = ov5647_640x480_8bpp,
.num_regs = ARRAY_SIZE(ov5647_640x480_8bpp)
},
@ -603,6 +606,7 @@ static const struct ov5647_mode ov5647_10bpp_modes[] = {
.width = 2592,
.height = 1944
},
.pixel_rate = 87500000,
.reg_list = ov5647_2592x1944_10bpp,
.num_regs = ARRAY_SIZE(ov5647_2592x1944_10bpp)
},
@ -621,6 +625,7 @@ static const struct ov5647_mode ov5647_10bpp_modes[] = {
.width = 1928,
.height = 1080,
},
.pixel_rate = 81666700,
.reg_list = ov5647_1080p30_10bpp,
.num_regs = ARRAY_SIZE(ov5647_1080p30_10bpp)
},
@ -639,6 +644,7 @@ static const struct ov5647_mode ov5647_10bpp_modes[] = {
.width = 2592,
.height = 1944,
},
.pixel_rate = 81666700,
.reg_list = ov5647_2x2binned_10bpp,
.num_regs = ARRAY_SIZE(ov5647_2x2binned_10bpp)
},
@ -657,6 +663,7 @@ static const struct ov5647_mode ov5647_10bpp_modes[] = {
.width = 2560,
.height = 1920,
},
.pixel_rate = 55000000,
.reg_list = ov5647_640x480_10bpp,
.num_regs = ARRAY_SIZE(ov5647_640x480_10bpp)
},
@ -1080,10 +1087,13 @@ static int ov5647_set_pad_fmt(struct v4l2_subdev *sd,
/* Update the sensor mode and apply at it at streamon time. */
mutex_lock(&sensor->lock);
if (format->which == V4L2_SUBDEV_FORMAT_TRY)
if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
*v4l2_subdev_get_try_format(sd, cfg, format->pad) = mode->format;
else
} else {
sensor->mode = mode;
__v4l2_ctrl_modify_range(sensor->pixel_rate, mode->pixel_rate,
mode->pixel_rate, 1, mode->pixel_rate);
}
*fmt = mode->format;
mutex_unlock(&sensor->lock);
@ -1288,6 +1298,9 @@ static int ov5647_s_ctrl(struct v4l2_ctrl *ctrl)
return ov5647_s_analogue_gain(sd, ctrl->val);
case V4L2_CID_EXPOSURE:
return ov5647_s_exposure(sd, ctrl->val);
case V4L2_CID_PIXEL_RATE:
/* Read-only, but we adjust it based on mode. */
return 0;
default:
dev_info(&client->dev,
"Control (id:0x%x, val:0x%x) not supported\n",
@ -1306,7 +1319,7 @@ static int ov5647_init_controls(struct ov5647 *sensor)
{
struct i2c_client *client = v4l2_get_subdevdata(&sensor->sd);
v4l2_ctrl_handler_init(&sensor->ctrls, 5);
v4l2_ctrl_handler_init(&sensor->ctrls, 6);
v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
V4L2_CID_AUTOGAIN, 0, 1, 1, 0);
@ -1326,18 +1339,26 @@ static int ov5647_init_controls(struct ov5647 *sensor)
v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
V4L2_CID_ANALOGUE_GAIN, 16, 1023, 1, 32);
if (sensor->ctrls.error) {
dev_err(&client->dev,
"%s Controls initialization failed (%d)\n",
__func__, sensor->ctrls.error);
v4l2_ctrl_handler_free(&sensor->ctrls);
return sensor->ctrls.error;
}
/* By default, PIXEL_RATE is read only, but it does change per mode */
sensor->pixel_rate = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
V4L2_CID_PIXEL_RATE,
sensor->mode->pixel_rate,
sensor->mode->pixel_rate, 1,
sensor->mode->pixel_rate);
if (sensor->ctrls.error)
goto handler_free;
sensor->pixel_rate->flags |= V4L2_CTRL_FLAG_READ_ONLY;
sensor->sd.ctrl_handler = &sensor->ctrls;
return 0;
handler_free:
dev_err(&client->dev, "%s Controls initialization failed (%d)\n",
__func__, sensor->ctrls.error);
v4l2_ctrl_handler_free(&sensor->ctrls);
return sensor->ctrls.error;
}
static int ov5647_parse_dt(struct ov5647 *sensor, struct device_node *np)