media: atomisp: Remove V4L2_CID_BIN_FACTOR_HORZ/_VERT

The bin-factor-x and bin-factor-y ctrls are only used internally to
get a single value to pass to atomisp_css_input_set_binning_factor(),
which is supposed to tune the lens-shading correction for the binning
factor. But all sensor drivers return either 0 or 1 for this,
with 0 meaning unset and 1 meaning no-binning. Even though some modes
do actually do binning ...

Also note that the removed atomisp_get_sensor_bin_factor() would fall
back to 0 if either the x and y factor differ or if the ctrls are not
implemented (not all sensor drivers implement them).

Simply always pass 0 to atomisp_css_input_set_binning_factor().

This is part of a patch-series which tries to remove atomisp specific /
custom code from the sensor drivers, with as end goal to make the atomisp
drivers regular camera sensor drivers.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/staging/media/atomisp/i2c/atomisp-gc0310.c

@@ -241,24 +241,6 @@ static int gc0310_write_reg_array(struct i2c_client *client,
 	return __gc0310_flush_reg_array(client, &ctrl);
 }
 
-static int gc0310_g_bin_factor_x(struct v4l2_subdev *sd, s32 *val)
-{
-	struct gc0310_device *dev = to_gc0310_sensor(sd);
-
-	*val = dev->res->bin_factor_x;
-
-	return 0;
-}
-
-static int gc0310_g_bin_factor_y(struct v4l2_subdev *sd, s32 *val)
-{
-	struct gc0310_device *dev = to_gc0310_sensor(sd);
-
-	*val = dev->res->bin_factor_y;
-
-	return 0;
-}
-
 static int gc0310_set_gain(struct v4l2_subdev *sd, int gain)
 
 {
@@ -441,12 +423,6 @@ static int gc0310_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
 	case V4L2_CID_EXPOSURE_ABSOLUTE:
 		ret = gc0310_q_exposure(&dev->sd, &ctrl->val);
 		break;
-	case V4L2_CID_BIN_FACTOR_HORZ:
-		ret = gc0310_g_bin_factor_x(&dev->sd, &ctrl->val);
-		break;
-	case V4L2_CID_BIN_FACTOR_VERT:
-		ret = gc0310_g_bin_factor_y(&dev->sd, &ctrl->val);
-		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -491,28 +467,6 @@ static const struct v4l2_ctrl_config gc0310_controls[] = {
 		.step = 1,
 		.def = 0,
 	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_BIN_FACTOR_HORZ,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "horizontal binning factor",
-		.min = 0,
-		.max = GC0310_BIN_FACTOR_MAX,
-		.step = 1,
-		.def = 0,
-		.flags = 0,
-	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_BIN_FACTOR_VERT,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "vertical binning factor",
-		.min = 0,
-		.max = GC0310_BIN_FACTOR_MAX,
-		.step = 1,
-		.def = 0,
-		.flags = 0,
-	},
 };
 
 static int gc0310_init(struct v4l2_subdev *sd)

drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c

@@ -1016,24 +1016,6 @@ static int mt9m114_s_exposure_selection(struct v4l2_subdev *sd,
 	return 0;
 }
 
-static int mt9m114_g_bin_factor_x(struct v4l2_subdev *sd, s32 *val)
-{
-	struct mt9m114_device *dev = to_mt9m114_sensor(sd);
-
-	*val = mt9m114_res[dev->res].bin_factor_x;
-
-	return 0;
-}
-
-static int mt9m114_g_bin_factor_y(struct v4l2_subdev *sd, s32 *val)
-{
-	struct mt9m114_device *dev = to_mt9m114_sensor(sd);
-
-	*val = mt9m114_res[dev->res].bin_factor_y;
-
-	return 0;
-}
-
 static int mt9m114_s_ev(struct v4l2_subdev *sd, s32 val)
 {
 	struct i2c_client *c = v4l2_get_subdevdata(sd);
@@ -1159,12 +1141,6 @@ static int mt9m114_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
 	case V4L2_CID_EXPOSURE_ZONE_NUM:
 		ret = mt9m114_g_exposure_zone_num(&dev->sd, &ctrl->val);
 		break;
-	case V4L2_CID_BIN_FACTOR_HORZ:
-		ret = mt9m114_g_bin_factor_x(&dev->sd, &ctrl->val);
-		break;
-	case V4L2_CID_BIN_FACTOR_VERT:
-		ret = mt9m114_g_bin_factor_y(&dev->sd, &ctrl->val);
-		break;
 	case V4L2_CID_EXPOSURE:
 		ret = mt9m114_g_ev(&dev->sd, &ctrl->val);
 		break;
@@ -1237,28 +1213,6 @@ static struct v4l2_ctrl_config mt9m114_controls[] = {
 		.def = 1,
 		.flags = 0,
 	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_BIN_FACTOR_HORZ,
-		.name = "horizontal binning factor",
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.min = 0,
-		.max = MT9M114_BIN_FACTOR_MAX,
-		.step = 1,
-		.def = 0,
-		.flags = 0,
-	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_BIN_FACTOR_VERT,
-		.name = "vertical binning factor",
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.min = 0,
-		.max = MT9M114_BIN_FACTOR_MAX,
-		.step = 1,
-		.def = 0,
-		.flags = 0,
-	},
 	{
 		.ops = &ctrl_ops,
 		.id = V4L2_CID_EXPOSURE,

drivers/staging/media/atomisp/i2c/atomisp-ov2680.c

@@ -119,27 +119,6 @@ static int ov2680_write_reg_array(struct i2c_client *client,
 	return 0;
 }
 
-static int ov2680_g_bin_factor_x(struct v4l2_subdev *sd, s32 *val)
-{
-	struct ov2680_device *dev = to_ov2680_sensor(sd);
-	struct i2c_client *client = v4l2_get_subdevdata(sd);
-
-	dev_dbg(&client->dev,  "++++ov2680_g_bin_factor_x\n");
-	*val = dev->res->bin_factor_x;
-
-	return 0;
-}
-
-static int ov2680_g_bin_factor_y(struct v4l2_subdev *sd, s32 *val)
-{
-	struct ov2680_device *dev = to_ov2680_sensor(sd);
-	struct i2c_client *client = v4l2_get_subdevdata(sd);
-
-	*val = dev->res->bin_factor_y;
-	dev_dbg(&client->dev,  "++++ov2680_g_bin_factor_y\n");
-	return 0;
-}
-
 static long __ov2680_set_exposure(struct v4l2_subdev *sd, int coarse_itg,
 				  int gain, int digitgain)
 
@@ -419,12 +398,6 @@ static int ov2680_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
 	case V4L2_CID_EXPOSURE_ABSOLUTE:
 		ret = ov2680_q_exposure(&dev->sd, &ctrl->val);
 		break;
-	case V4L2_CID_BIN_FACTOR_HORZ:
-		ret = ov2680_g_bin_factor_x(&dev->sd, &ctrl->val);
-		break;
-	case V4L2_CID_BIN_FACTOR_VERT:
-		ret = ov2680_g_bin_factor_y(&dev->sd, &ctrl->val);
-		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -449,28 +422,6 @@ static const struct v4l2_ctrl_config ov2680_controls[] = {
 		.def = 0x00,
 		.flags = 0,
 	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_BIN_FACTOR_HORZ,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "horizontal binning factor",
-		.min = 0,
-		.max = OV2680_BIN_FACTOR_MAX,
-		.step = 1,
-		.def = 0,
-		.flags = 0,
-	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_BIN_FACTOR_VERT,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "vertical binning factor",
-		.min = 0,
-		.max = OV2680_BIN_FACTOR_MAX,
-		.step = 1,
-		.def = 0,
-		.flags = 0,
-	},
 	{
 		.ops = &ctrl_ops,
 		.id = V4L2_CID_VFLIP,

drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c

@@ -415,24 +415,6 @@ static int ov5693_write_reg_array(struct i2c_client *client,
 	return __ov5693_flush_reg_array(client, &ctrl);
 }
 
-static int ov5693_g_bin_factor_x(struct v4l2_subdev *sd, s32 *val)
-{
-	struct ov5693_device *dev = to_ov5693_sensor(sd);
-
-	*val = ov5693_res[dev->fmt_idx].bin_factor_x;
-
-	return 0;
-}
-
-static int ov5693_g_bin_factor_y(struct v4l2_subdev *sd, s32 *val)
-{
-	struct ov5693_device *dev = to_ov5693_sensor(sd);
-
-	*val = ov5693_res[dev->fmt_idx].bin_factor_y;
-
-	return 0;
-}
-
 static long __ov5693_set_exposure(struct v4l2_subdev *sd, int coarse_itg,
 				  int gain, int digitgain)
 
@@ -1014,12 +996,6 @@ static int ov5693_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
 	case V4L2_CID_FOCUS_STATUS:
 		ret = ov5693_q_focus_status(&dev->sd, &ctrl->val);
 		break;
-	case V4L2_CID_BIN_FACTOR_HORZ:
-		ret = ov5693_g_bin_factor_x(&dev->sd, &ctrl->val);
-		break;
-	case V4L2_CID_BIN_FACTOR_VERT:
-		ret = ov5693_g_bin_factor_y(&dev->sd, &ctrl->val);
-		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1099,28 +1075,6 @@ static const struct v4l2_ctrl_config ov5693_controls[] = {
 		.def = 0,
 		.flags = 0,
 	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_BIN_FACTOR_HORZ,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "horizontal binning factor",
-		.min = 0,
-		.max = OV5693_BIN_FACTOR_MAX,
-		.step = 1,
-		.def = 0,
-		.flags = 0,
-	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_BIN_FACTOR_VERT,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "vertical binning factor",
-		.min = 0,
-		.max = OV5693_BIN_FACTOR_MAX,
-		.step = 1,
-		.def = 0,
-		.flags = 0,
-	},
 };
 
 static int ov5693_init(struct v4l2_subdev *sd)

drivers/staging/media/atomisp/include/linux/atomisp.h

@@ -1071,10 +1071,6 @@ struct atomisp_sensor_ae_bracketing_lut {
 /* Query Focus Status */
 #define V4L2_CID_FOCUS_STATUS              (V4L2_CID_CAMERA_LASTP1 + 14)
 
-/* Query sensor's binning factor */
-#define V4L2_CID_BIN_FACTOR_HORZ	   (V4L2_CID_CAMERA_LASTP1 + 15)
-#define V4L2_CID_BIN_FACTOR_VERT	   (V4L2_CID_CAMERA_LASTP1 + 16)
-
 /* number of frames to skip at stream start */
 #define V4L2_CID_G_SKIP_FRAMES		   (V4L2_CID_CAMERA_LASTP1 + 17)
 

drivers/staging/media/atomisp/pci/atomisp_ioctl.c

@@ -172,24 +172,6 @@ static struct v4l2_queryctrl ci_v4l2_controls[] = {
 		.step = 1,
 		.default_value = 1,
 	},
-	{
-		.id = V4L2_CID_BIN_FACTOR_HORZ,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "Horizontal binning factor",
-		.minimum = 0,
-		.maximum = 10,
-		.step = 1,
-		.default_value = 0,
-	},
-	{
-		.id = V4L2_CID_BIN_FACTOR_VERT,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "Vertical binning factor",
-		.minimum = 0,
-		.maximum = 10,
-		.step = 1,
-		.default_value = 0,
-	},
 	{
 		.id = V4L2_CID_2A_STATUS,
 		.type = V4L2_CTRL_TYPE_BITMASK,
@@ -1836,8 +1818,6 @@ static int atomisp_camera_g_ext_ctrls(struct file *file, void *fh,
 		case V4L2_CID_EXPOSURE_ABSOLUTE:
 		case V4L2_CID_EXPOSURE_AUTO:
 		case V4L2_CID_IRIS_ABSOLUTE:
-		case V4L2_CID_BIN_FACTOR_HORZ:
-		case V4L2_CID_BIN_FACTOR_VERT:
 		case V4L2_CID_3A_LOCK:
 		case V4L2_CID_TEST_PATTERN:
 		case V4L2_CID_TEST_PATTERN_COLOR_R:

drivers/staging/media/atomisp/pci/atomisp_subdev.c

@@ -574,40 +574,6 @@ static int isp_subdev_set_selection(struct v4l2_subdev *sd,
 					    sel->target, sel->flags, &sel->r);
 }
 
-static int atomisp_get_sensor_bin_factor(struct atomisp_sub_device *asd)
-{
-	struct v4l2_control ctrl = {0};
-	struct atomisp_device *isp = asd->isp;
-	int hbin, vbin;
-	int ret;
-
-	if (isp->inputs[asd->input_curr].type == FILE_INPUT ||
-	    isp->inputs[asd->input_curr].type == TEST_PATTERN)
-		return 0;
-
-	ctrl.id = V4L2_CID_BIN_FACTOR_HORZ;
-	ret =
-	    v4l2_g_ctrl(isp->inputs[asd->input_curr].camera->ctrl_handler,
-			&ctrl);
-	hbin = ctrl.value;
-	ctrl.id = V4L2_CID_BIN_FACTOR_VERT;
-	ret |=
-	    v4l2_g_ctrl(isp->inputs[asd->input_curr].camera->ctrl_handler,
-			&ctrl);
-	vbin = ctrl.value;
-
-	/*
-	 * ISP needs to know binning factor from sensor.
-	 * In case horizontal and vertical sensor's binning factors
-	 * are different or sensor does not support binning factor CID,
-	 * ISP will apply default 0 value.
-	 */
-	if (ret || hbin != vbin)
-		hbin = 0;
-
-	return hbin;
-}
-
 void atomisp_subdev_set_ffmt(struct v4l2_subdev *sd,
 			     struct v4l2_subdev_state *sd_state,
 			     uint32_t which,
@@ -645,7 +611,7 @@ void atomisp_subdev_set_ffmt(struct v4l2_subdev *sd,
 							 ATOMISP_INPUT_STREAM_GENERAL, ffmt);
 			atomisp_css_input_set_binning_factor(isp_sd,
 							     ATOMISP_INPUT_STREAM_GENERAL,
-							     atomisp_get_sensor_bin_factor(isp_sd));
+							     0);
 			atomisp_css_input_set_bayer_order(isp_sd, ATOMISP_INPUT_STREAM_GENERAL,
 							  fc->bayer_order);
 			atomisp_css_input_set_format(isp_sd, ATOMISP_INPUT_STREAM_GENERAL,