1 // SPDX-License-Identifier: GPL-2.0
9 #include <media/v4l2-ctrls.h>
10 #include <media/v4l2-device.h>
14  * This sets the minimum granularity for the focus positions.
15  * A value of 1 gives maximum accuracy for a desired focus position
19  * This acts as the minimum granularity of lens movement.
21  * uniformly adjusted for gradual lens movement, with desired
36 	struct v4l2_ctrl *focus;  member
43 	return container_of(ctrl->handler, struct ak7375_device, ctrls_vcm);  in to_ak7375_vcm()
54 	struct i2c_client *client = v4l2_get_subdevdata(&ak7375->sd);  in ak7375_i2c_write()
59 		return -EINVAL;  in ak7375_i2c_write()
68 		return -EIO;  in ak7375_i2c_write()
77 	if (ctrl->id == V4L2_CID_FOCUS_ABSOLUTE)  in ak7375_set_ctrl()
79 					ctrl->val << 4, 2);  in ak7375_set_ctrl()
81 	return -EINVAL;  in ak7375_set_ctrl()
90 	return pm_runtime_resume_and_get(sd->dev);  in ak7375_open()
95 	pm_runtime_put(sd->dev);  in ak7375_close()
109 	v4l2_async_unregister_subdev(&ak7375_dev->sd);  in ak7375_subdev_cleanup()
110 	v4l2_ctrl_handler_free(&ak7375_dev->ctrls_vcm);  in ak7375_subdev_cleanup()
111 	media_entity_cleanup(&ak7375_dev->sd.entity);  in ak7375_subdev_cleanup()
116 	struct v4l2_ctrl_handler *hdl = &dev_vcm->ctrls_vcm;  in ak7375_init_controls()
121 	dev_vcm->focus = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FOCUS_ABSOLUTE,  in ak7375_init_controls()
124 	if (hdl->error)  in ak7375_init_controls()
125 		dev_err(dev_vcm->sd.dev, "%s fail error: 0x%x\n",  in ak7375_init_controls()
126 			__func__, hdl->error);  in ak7375_init_controls()
127 	dev_vcm->sd.ctrl_handler = hdl;  in ak7375_init_controls()
129 	return hdl->error;  in ak7375_init_controls()
137 	ak7375_dev = devm_kzalloc(&client->dev, sizeof(*ak7375_dev),  in ak7375_probe()
140 		return -ENOMEM;  in ak7375_probe()
142 	v4l2_i2c_subdev_init(&ak7375_dev->sd, client, &ak7375_ops);  in ak7375_probe()
143 	ak7375_dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;  in ak7375_probe()
144 	ak7375_dev->sd.internal_ops = &ak7375_int_ops;  in ak7375_probe()
145 	ak7375_dev->sd.entity.function = MEDIA_ENT_F_LENS;  in ak7375_probe()
151 	ret = media_entity_pads_init(&ak7375_dev->sd.entity, 0, NULL);  in ak7375_probe()
155 	ret = v4l2_async_register_subdev(&ak7375_dev->sd);  in ak7375_probe()
159 	pm_runtime_set_active(&client->dev);  in ak7375_probe()
160 	pm_runtime_enable(&client->dev);  in ak7375_probe()
161 	pm_runtime_idle(&client->dev);  in ak7375_probe()
166 	v4l2_ctrl_handler_free(&ak7375_dev->ctrls_vcm);  in ak7375_probe()
167 	media_entity_cleanup(&ak7375_dev->sd.entity);  in ak7375_probe()
178 	pm_runtime_disable(&client->dev);  in ak7375_remove()
179 	pm_runtime_set_suspended(&client->dev);  in ak7375_remove()
184  * The lens position is gradually moved in units of AK7375_CTRL_STEPS,
193 	if (!ak7375_dev->active)  in ak7375_vcm_suspend()
196 	for (val = ak7375_dev->focus->val & ~(AK7375_CTRL_STEPS - 1);  in ak7375_vcm_suspend()
197 	     val >= 0; val -= AK7375_CTRL_STEPS) {  in ak7375_vcm_suspend()
211 	ak7375_dev->active = false;  in ak7375_vcm_suspend()
219  * The lens position is gradually moved in units of AK7375_CTRL_STEPS,
228 	if (ak7375_dev->active)  in ak7375_vcm_resume()
238 	for (val = ak7375_dev->focus->val % AK7375_CTRL_STEPS;  in ak7375_vcm_resume()
239 	     val <= ak7375_dev->focus->val;  in ak7375_vcm_resume()
249 	ak7375_dev->active = true;  in ak7375_vcm_resume()
255 	{ .compatible = "asahi-kasei,ak7375" },