1 // SPDX-License-Identifier: GPL-2.0
3  * imx274.c - IMX274 CMOS Image Sensor driver
25 #include <linux/v4l2-mediabus.h>
28 #include <media/v4l2-ctrls.h>
29 #include <media/v4l2-device.h>
30 #include <media/v4l2-subdev.h>
50 #define IMX274_GAIN_SHIFT_MASK			((1 << IMX274_GAIN_SHIFT) - 1)
60 					/ (2048 - IMX274_GAIN_REG_MAX))
77  * register SHR is limited to (SVR value + 1) x VMAX value - 4
168  *                 Adjustment (CSI-2)" in the datasheet)
169  * @min_SHR: Minimum SHR register value (see "Shutter Setting (CSI-2)" in the
173  *           in Each Readout Drive Mode (CSI-2)" in the datasheet)
221  * All-pixel scan mode (10-bit)
223  * 3840x2160 resolution, raw10 data and mipi four lane output
261  * Horizontal/vertical 2/2-line binning
262  * (Horizontal and vertical weightedbinning, 10-bit)
264  * 1920x1080 resolution, raw10 data and mipi four lane output
304  * 1280x720 resolution, raw10 data and mipi four lane output
344  * 1280x540 resolution, raw10 data and mipi four lane output
535  * struct imx274_ctrls - imx274 ctrl structure
551  * struct stim274 - imx274 device structure
611 	return &container_of(ctrl->handler,  in ctrl_to_sd()
612 			     struct stimx274, ctrls.handler)->sd;  in ctrl_to_sd()
632 	struct regmap *regmap = priv->regmap;  in imx274_write_table()
637 	int range_start = -1;  in imx274_write_table()
643 		if ((next->addr != range_start + range_count) ||  in imx274_write_table()
644 		    (next->addr == IMX274_TABLE_END) ||  in imx274_write_table()
645 		    (next->addr == IMX274_TABLE_WAIT_MS) ||  in imx274_write_table()
660 			range_start = -1;  in imx274_write_table()
664 			if (next->addr == IMX274_TABLE_END)  in imx274_write_table()
667 			if (next->addr == IMX274_TABLE_WAIT_MS) {  in imx274_write_table()
668 				msleep_range(next->val);  in imx274_write_table()
673 		val = next->val;  in imx274_write_table()
675 		if (range_start == -1)  in imx274_write_table()
676 			range_start = next->addr;  in imx274_write_table()
687 	err = regmap_write(priv->regmap, addr, val);  in imx274_write_reg()
689 		dev_err(&priv->client->dev,  in imx274_write_reg()
693 		dev_dbg(&priv->client->dev,  in imx274_write_reg()
700  * imx274_read_mbreg - Read a multibyte register.
706  *        consecutive, least-to-most significant.
719 	err = regmap_bulk_read(priv->regmap, addr, &val_le, nbytes);  in imx274_read_mbreg()
721 		dev_err(&priv->client->dev,  in imx274_read_mbreg()
726 		dev_dbg(&priv->client->dev,  in imx274_read_mbreg()
735  * imx274_write_mbreg - Write a multibyte register.
741  *        consecutive, least-to-most significant.
751 	err = regmap_bulk_write(priv->regmap, addr, &val_le, nbytes);  in imx274_write_mbreg()
753 		dev_err(&priv->client->dev,  in imx274_write_mbreg()
757 		dev_dbg(&priv->client->dev,  in imx274_write_mbreg()
777 	err = imx274_write_table(priv, priv->mode->init_regs);  in imx274_mode_regs()
783  * imx274_start_stream - Function for starting stream per mode index
792 	err = __v4l2_ctrl_handler_setup(&priv->ctrls.handler);  in imx274_start_stream()
794 		dev_err(&priv->client->dev, "Error %d setup controls\n", err);  in imx274_start_stream()
799 	 * Refer to "Standby Cancel Sequence when using CSI-2" in  in imx274_start_stream()
809 	 * Refer to "Standby Cancel Sequence when using CSI-2" in  in imx274_start_stream()
822  * imx274_reset - Function called to reset the sensor
833 	gpiod_set_value_cansleep(priv->reset_gpio, 0);  in imx274_reset()
835 	gpiod_set_value_cansleep(priv->reset_gpio, !!rst);  in imx274_reset()
849 	ret = clk_prepare_enable(imx274->inck);  in imx274_power_on()
851 		dev_err(&imx274->client->dev,  in imx274_power_on()
856 	ret = regulator_bulk_enable(IMX274_NUM_SUPPLIES, imx274->supplies);  in imx274_power_on()
858 		dev_err(&imx274->client->dev,  in imx274_power_on()
869 	clk_disable_unprepare(imx274->inck);  in imx274_power_on()
881 	regulator_bulk_disable(IMX274_NUM_SUPPLIES, imx274->supplies);  in imx274_power_off()
883 	clk_disable_unprepare(imx274->inck);  in imx274_power_off()
893 		imx274->supplies[i].supply = imx274_supply_names[i];  in imx274_regulators_get()
896 					imx274->supplies);  in imx274_regulators_get()
900  * imx274_s_ctrl - This is used to set the imx274 V4L2 controls
911 	int ret = -EINVAL;  in imx274_s_ctrl()
913 	if (!pm_runtime_get_if_in_use(&imx274->client->dev))  in imx274_s_ctrl()
916 	dev_dbg(&imx274->client->dev,  in imx274_s_ctrl()
918 		ctrl->name, ctrl->val);  in imx274_s_ctrl()
920 	switch (ctrl->id) {  in imx274_s_ctrl()
922 		dev_dbg(&imx274->client->dev,  in imx274_s_ctrl()
924 		ret = imx274_set_exposure(imx274, ctrl->val);  in imx274_s_ctrl()
928 		dev_dbg(&imx274->client->dev,  in imx274_s_ctrl()
934 		dev_dbg(&imx274->client->dev,  in imx274_s_ctrl()
936 		ret = imx274_set_vflip(imx274, ctrl->val);  in imx274_s_ctrl()
940 		dev_dbg(&imx274->client->dev,  in imx274_s_ctrl()
942 		ret = imx274_set_test_pattern(imx274, ctrl->val);  in imx274_s_ctrl()
946 	pm_runtime_put(&imx274->client->dev);  in imx274_s_ctrl()
955 	struct device *dev = &imx274->client->dev;  in imx274_binning_goodness()
961 			val -= goodness;  in imx274_binning_goodness()
963 			val -= goodness;  in imx274_binning_goodness()
968 			val -= goodness;  in imx274_binning_goodness()
970 			val -= goodness;  in imx274_binning_goodness()
973 	val -= abs(w - ask_w);  in imx274_binning_goodness()
974 	val -= abs(h - ask_h);  in imx274_binning_goodness()
983  * __imx274_change_compose - Helper function to change binning and set both
996  * Must be called with imx274->lock locked.
1001  * @width:  Input-output parameter: set to the desired width before
1003  * @height: Input-output parameter for height (see @width)
1014 	struct device *dev = &imx274->client->dev;  in __imx274_change_compose()
1022 		cur_crop = &sd_state->pads->try_crop;  in __imx274_change_compose()
1023 		tgt_fmt = &sd_state->pads->try_fmt;  in __imx274_change_compose()
1025 		cur_crop = &imx274->crop;  in __imx274_change_compose()
1026 		tgt_fmt = &imx274->format;  in __imx274_change_compose()
1035 			cur_crop->width / wratio, *width,  in __imx274_change_compose()
1036 			cur_crop->height / hratio, *height,  in __imx274_change_compose()
1045 	*width = cur_crop->width / best_mode->wbin_ratio;  in __imx274_change_compose()
1046 	*height = cur_crop->height / best_mode->hbin_ratio;  in __imx274_change_compose()
1049 		imx274->mode = best_mode;  in __imx274_change_compose()
1052 		__func__, best_mode->wbin_ratio, best_mode->hbin_ratio);  in __imx274_change_compose()
1054 	tgt_fmt->width = *width;  in __imx274_change_compose()
1055 	tgt_fmt->height = *height;  in __imx274_change_compose()
1056 	tgt_fmt->field = V4L2_FIELD_NONE;  in __imx274_change_compose()
1062  * imx274_get_fmt - Get the pad format
1077 	mutex_lock(&imx274->lock);  in imx274_get_fmt()
1078 	fmt->format = imx274->format;  in imx274_get_fmt()
1079 	mutex_unlock(&imx274->lock);  in imx274_get_fmt()
1084  * imx274_set_fmt - This is used to set the pad format
1097 	struct v4l2_mbus_framefmt *fmt = &format->format;  in imx274_set_fmt()
1101 	mutex_lock(&imx274->lock);  in imx274_set_fmt()
1103 	err = __imx274_change_compose(imx274, sd_state, format->which,  in imx274_set_fmt()
1104 				      &fmt->width, &fmt->height, 0);  in imx274_set_fmt()
1114 	fmt->field = V4L2_FIELD_NONE;  in imx274_set_fmt()
1115 	if (format->which == V4L2_SUBDEV_FORMAT_TRY)  in imx274_set_fmt()
1116 		sd_state->pads->try_fmt = *fmt;  in imx274_set_fmt()
1118 		imx274->format = *fmt;  in imx274_set_fmt()
1121 	mutex_unlock(&imx274->lock);  in imx274_set_fmt()
1135 	if (sel->pad != 0)  in imx274_get_selection()
1136 		return -EINVAL;  in imx274_get_selection()
1138 	if (sel->target == V4L2_SEL_TGT_CROP_BOUNDS) {  in imx274_get_selection()
1139 		sel->r.left = 0;  in imx274_get_selection()
1140 		sel->r.top = 0;  in imx274_get_selection()
1141 		sel->r.width = IMX274_MAX_WIDTH;  in imx274_get_selection()
1142 		sel->r.height = IMX274_MAX_HEIGHT;  in imx274_get_selection()
1146 	if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {  in imx274_get_selection()
1147 		src_crop = &sd_state->pads->try_crop;  in imx274_get_selection()
1148 		src_fmt = &sd_state->pads->try_fmt;  in imx274_get_selection()
1150 		src_crop = &imx274->crop;  in imx274_get_selection()
1151 		src_fmt = &imx274->format;  in imx274_get_selection()
1154 	mutex_lock(&imx274->lock);  in imx274_get_selection()
1156 	switch (sel->target) {  in imx274_get_selection()
1158 		sel->r = *src_crop;  in imx274_get_selection()
1161 		sel->r.top = 0;  in imx274_get_selection()
1162 		sel->r.left = 0;  in imx274_get_selection()
1163 		sel->r.width = src_crop->width;  in imx274_get_selection()
1164 		sel->r.height = src_crop->height;  in imx274_get_selection()
1167 		sel->r.top = 0;  in imx274_get_selection()
1168 		sel->r.left = 0;  in imx274_get_selection()
1169 		sel->r.width = src_fmt->width;  in imx274_get_selection()
1170 		sel->r.height = src_fmt->height;  in imx274_get_selection()
1173 		ret = -EINVAL;  in imx274_get_selection()
1176 	mutex_unlock(&imx274->lock);  in imx274_get_selection()
1198 			       IMX274_ROUND(sel->r.width, h_step, sel->flags),  in imx274_set_selection_crop()
1201 	/* Constraint: HTRIMMING_END - HTRIMMING_START >= 144 */  in imx274_set_selection_crop()
1206 			      IMX274_ROUND(sel->r.left, h_step, 0),  in imx274_set_selection_crop()
1207 			      IMX274_MAX_WIDTH - new_crop.width);  in imx274_set_selection_crop()
1210 				IMX274_ROUND(sel->r.height, 2, sel->flags),  in imx274_set_selection_crop()
1213 	new_crop.top = min_t(u32, IMX274_ROUND(sel->r.top, 2, 0),  in imx274_set_selection_crop()
1214 			     IMX274_MAX_HEIGHT - new_crop.height);  in imx274_set_selection_crop()
1216 	sel->r = new_crop;  in imx274_set_selection_crop()
1218 	if (sel->which == V4L2_SUBDEV_FORMAT_TRY)  in imx274_set_selection_crop()
1219 		tgt_crop = &sd_state->pads->try_crop;  in imx274_set_selection_crop()
1221 		tgt_crop = &imx274->crop;  in imx274_set_selection_crop()
1223 	mutex_lock(&imx274->lock);  in imx274_set_selection_crop()
1225 	size_changed = (new_crop.width != tgt_crop->width ||  in imx274_set_selection_crop()
1226 			new_crop.height != tgt_crop->height);  in imx274_set_selection_crop()
1233 		__imx274_change_compose(imx274, sd_state, sel->which,  in imx274_set_selection_crop()
1235 					sel->flags);  in imx274_set_selection_crop()
1237 	mutex_unlock(&imx274->lock);  in imx274_set_selection_crop()
1248 	if (sel->pad != 0)  in imx274_set_selection()
1249 		return -EINVAL;  in imx274_set_selection()
1251 	if (sel->target == V4L2_SEL_TGT_CROP)  in imx274_set_selection()
1254 	if (sel->target == V4L2_SEL_TGT_COMPOSE) {  in imx274_set_selection()
1257 		mutex_lock(&imx274->lock);  in imx274_set_selection()
1258 		err =  __imx274_change_compose(imx274, sd_state, sel->which,  in imx274_set_selection()
1259 					       &sel->r.width, &sel->r.height,  in imx274_set_selection()
1260 					       sel->flags);  in imx274_set_selection()
1261 		mutex_unlock(&imx274->lock);  in imx274_set_selection()
1265 		 * height in set->r, we still need to set top-left  in imx274_set_selection()
1268 			sel->r.top = 0;  in imx274_set_selection()
1269 			sel->r.left = 0;  in imx274_set_selection()
1275 	return -EINVAL;  in imx274_set_selection()
1289 	h_start = imx274->crop.left + 12;  in imx274_apply_trimming()
1290 	h_end = h_start + imx274->crop.width;  in imx274_apply_trimming()
1295 	hmax = max_t(u32, 260, (imx274->crop.width) / 16 + 23);  in imx274_apply_trimming()
1298 	v_pos = imx274->ctrls.vflip->cur.val ?  in imx274_apply_trimming()
1299 		(-imx274->crop.top / 2) : (imx274->crop.top / 2);  in imx274_apply_trimming()
1300 	v_cut = (IMX274_MAX_HEIGHT - imx274->crop.height) / 2;  in imx274_apply_trimming()
1301 	write_v_size = imx274->crop.height + 22;  in imx274_apply_trimming()
1302 	y_out_size   = imx274->crop.height;  in imx274_apply_trimming()
1332  * imx274_g_frame_interval - Get the frame interval
1345 	fi->interval = imx274->frame_interval;  in imx274_g_frame_interval()
1346 	dev_dbg(&imx274->client->dev, "%s frame rate = %d / %d\n",  in imx274_g_frame_interval()
1347 		__func__, imx274->frame_interval.numerator,  in imx274_g_frame_interval()
1348 		imx274->frame_interval.denominator);  in imx274_g_frame_interval()
1354  * imx274_s_frame_interval - Set the frame interval
1366 	struct v4l2_ctrl *ctrl = imx274->ctrls.exposure;  in imx274_s_frame_interval()
1370 	mutex_lock(&imx274->lock);  in imx274_s_frame_interval()
1371 	ret = imx274_set_frame_interval(imx274, fi->interval);  in imx274_s_frame_interval()
1374 		fi->interval = imx274->frame_interval;  in imx274_s_frame_interval()
1381 		max = fi->interval.numerator * 1000000  in imx274_s_frame_interval()
1382 			/ fi->interval.denominator;  in imx274_s_frame_interval()
1386 			dev_err(&imx274->client->dev,  in imx274_s_frame_interval()
1392 		imx274_set_exposure(imx274, ctrl->val);  in imx274_s_frame_interval()
1394 		dev_dbg(&imx274->client->dev, "set frame interval to %uus\n",  in imx274_s_frame_interval()
1395 			fi->interval.numerator * 1000000  in imx274_s_frame_interval()
1396 			/ fi->interval.denominator);  in imx274_s_frame_interval()
1400 	mutex_unlock(&imx274->lock);  in imx274_s_frame_interval()
1406  * imx274_load_default - load default control values
1414 	priv->frame_interval.numerator = 1;  in imx274_load_default()
1415 	priv->frame_interval.denominator = IMX274_DEF_FRAME_RATE;  in imx274_load_default()
1416 	priv->ctrls.exposure->val = 1000000 / IMX274_DEF_FRAME_RATE;  in imx274_load_default()
1417 	priv->ctrls.gain->val = IMX274_DEF_GAIN;  in imx274_load_default()
1418 	priv->ctrls.vflip->val = 0;  in imx274_load_default()
1419 	priv->ctrls.test_pattern->val = TEST_PATTERN_DISABLED;  in imx274_load_default()
1423  * imx274_s_stream - It is used to start/stop the streaming.
1437 	dev_dbg(&imx274->client->dev, "%s : %s, mode index = %td\n", __func__,  in imx274_s_stream()
1439 		imx274->mode - &imx274_modes[0]);  in imx274_s_stream()
1441 	mutex_lock(&imx274->lock);  in imx274_s_stream()
1444 		ret = pm_runtime_resume_and_get(&imx274->client->dev);  in imx274_s_stream()
1446 			mutex_unlock(&imx274->lock);  in imx274_s_stream()
1466 						imx274->frame_interval);  in imx274_s_stream()
1480 		pm_runtime_put(&imx274->client->dev);  in imx274_s_stream()
1483 	mutex_unlock(&imx274->lock);  in imx274_s_stream()
1484 	dev_dbg(&imx274->client->dev, "%s : Done\n", __func__);  in imx274_s_stream()
1488 	pm_runtime_put(&imx274->client->dev);  in imx274_s_stream()
1489 	mutex_unlock(&imx274->lock);  in imx274_s_stream()
1490 	dev_err(&imx274->client->dev, "s_stream failed\n");  in imx274_s_stream()
1495  * imx274_get_frame_length - Function for obtaining current frame length
1522 	dev_err(&priv->client->dev, "%s error = %d\n", __func__, err);  in imx274_get_frame_length()
1535 	if (*frame_length < priv->mode->min_frame_len)  in imx274_clamp_coarse_time()
1536 		*frame_length =  priv->mode->min_frame_len;  in imx274_clamp_coarse_time()
1538 	*val = *frame_length - *val; /* convert to raw shr */  in imx274_clamp_coarse_time()
1539 	if (*val > *frame_length - IMX274_SHR_LIMIT_CONST)  in imx274_clamp_coarse_time()
1540 		*val = *frame_length - IMX274_SHR_LIMIT_CONST;  in imx274_clamp_coarse_time()
1541 	else if (*val < priv->mode->min_SHR)  in imx274_clamp_coarse_time()
1542 		*val = priv->mode->min_SHR;  in imx274_clamp_coarse_time()
1548  * imx274_set_digital gain - Function called when setting digital gain
1563 		reg_val--;  in imx274_set_digital_gain()
1572  * imx274_set_gain - Function called when setting gain
1578  * The caller should hold the mutex lock imx274->lock if necessary
1587 	gain = (u32)(ctrl->val);  in imx274_set_gain()
1589 	dev_dbg(&priv->client->dev,  in imx274_set_gain()
1610 	dev_dbg(&priv->client->dev,  in imx274_set_gain()
1621 	gain_reg = (u32)IMX274_GAIN_CONST -  in imx274_set_gain()
1631 	if (IMX274_GAIN_CONST - gain_reg == 0) {  in imx274_set_gain()
1632 		err = -EINVAL;  in imx274_set_gain()
1637 	ctrl->val = (IMX274_GAIN_CONST << IMX274_GAIN_SHIFT)  in imx274_set_gain()
1638 			/ (IMX274_GAIN_CONST - gain_reg) * digital_gain;  in imx274_set_gain()
1640 	dev_dbg(&priv->client->dev,  in imx274_set_gain()
1642 		__func__, gain_reg, ctrl->val);  in imx274_set_gain()
1647 	dev_err(&priv->client->dev, "%s error = %d\n", __func__, err);  in imx274_set_gain()
1652  * imx274_set_coarse_time - Function called when setting SHR value
1676 	*val = frame_length - coarse_time;  in imx274_set_coarse_time()
1680 	dev_err(&priv->client->dev, "%s error = %d\n", __func__, err);  in imx274_set_coarse_time()
1685  * imx274_set_exposure - Function called when setting exposure time
1687  * @val: Variable for exposure time, in the unit of micro-second
1690  * The caller should hold the mutex lock imx274->lock if necessary
1700 	dev_dbg(&priv->client->dev,  in imx274_set_exposure()
1710 		err = -EINVAL;  in imx274_set_exposure()
1715 			- priv->mode->nocpiop) / hmax;  in imx274_set_exposure()
1724 	priv->ctrls.exposure->val =  in imx274_set_exposure()
1725 			(coarse_time * hmax + priv->mode->nocpiop)  in imx274_set_exposure()
1728 	dev_dbg(&priv->client->dev,  in imx274_set_exposure()
1733 	dev_err(&priv->client->dev, "%s error = %d\n", __func__, err);  in imx274_set_exposure()
1739  * imx274_set_vflip - Function called when setting vertical flip
1746  * The caller should hold the mutex lock imx274->lock if necessary
1756 		dev_err(&priv->client->dev, "VFLIP control error\n");  in imx274_set_vflip()
1760 	dev_dbg(&priv->client->dev,  in imx274_set_vflip()
1767  * imx274_set_test_pattern - Function called when setting test pattern
1782 		err = imx274_write_reg(priv, IMX274_TEST_PATTERN_REG, val - 1);  in imx274_set_test_pattern()
1786 		err = -EINVAL;  in imx274_set_test_pattern()
1790 		dev_dbg(&priv->client->dev,  in imx274_set_test_pattern()
1793 		dev_err(&priv->client->dev, "%s error = %d\n", __func__, err);  in imx274_set_test_pattern()
1799  * imx274_set_frame_length - Function called when setting frame length
1812 	dev_dbg(&priv->client->dev, "%s : input length = %d\n",  in imx274_set_frame_length()
1824 	dev_err(&priv->client->dev, "%s error = %d\n", __func__, err);  in imx274_set_frame_length()
1829  * imx274_set_frame_interval - Function called when setting frame interval
1834  * The caller should hold the mutex lock imx274->lock if necessary
1846 	dev_dbg(&priv->client->dev, "%s: input frame interval = %d / %d",  in imx274_set_frame_interval()
1859 	if (req_frame_rate > priv->mode->max_fps) {  in imx274_set_frame_interval()
1861 		frame_interval.denominator = priv->mode->max_fps;  in imx274_set_frame_interval()
1876 	dev_dbg(&priv->client->dev,  in imx274_set_frame_interval()
1883 	dev_dbg(&priv->client->dev,  in imx274_set_frame_interval()
1887 		err = -EINVAL;  in imx274_set_frame_interval()
1899 	priv->frame_interval = frame_interval;  in imx274_set_frame_interval()
1903 	dev_err(&priv->client->dev, "%s error = %d\n", __func__, err);  in imx274_set_frame_interval()
1948 	imx274 = devm_kzalloc(&client->dev, sizeof(*imx274), GFP_KERNEL);  in imx274_probe()
1950 		return -ENOMEM;  in imx274_probe()
1952 	mutex_init(&imx274->lock);  in imx274_probe()
1954 	imx274->inck = devm_clk_get_optional(&client->dev, "inck");  in imx274_probe()
1955 	if (IS_ERR(imx274->inck))  in imx274_probe()
1956 		return PTR_ERR(imx274->inck);  in imx274_probe()
1958 	ret = imx274_regulators_get(&client->dev, imx274);  in imx274_probe()
1960 		dev_err(&client->dev,  in imx274_probe()
1966 	imx274->mode = &imx274_modes[0];  in imx274_probe()
1967 	imx274->crop.width = IMX274_MAX_WIDTH;  in imx274_probe()
1968 	imx274->crop.height = IMX274_MAX_HEIGHT;  in imx274_probe()
1969 	imx274->format.width = imx274->crop.width / imx274->mode->wbin_ratio;  in imx274_probe()
1970 	imx274->format.height = imx274->crop.height / imx274->mode->hbin_ratio;  in imx274_probe()
1971 	imx274->format.field = V4L2_FIELD_NONE;  in imx274_probe()
1972 	imx274->format.code = MEDIA_BUS_FMT_SRGGB10_1X10;  in imx274_probe()
1973 	imx274->format.colorspace = V4L2_COLORSPACE_SRGB;  in imx274_probe()
1974 	imx274->frame_interval.numerator = 1;  in imx274_probe()
1975 	imx274->frame_interval.denominator = IMX274_DEF_FRAME_RATE;  in imx274_probe()
1978 	imx274->regmap = devm_regmap_init_i2c(client, &imx274_regmap_config);  in imx274_probe()
1979 	if (IS_ERR(imx274->regmap)) {  in imx274_probe()
1980 		dev_err(&client->dev,  in imx274_probe()
1981 			"regmap init failed: %ld\n", PTR_ERR(imx274->regmap));  in imx274_probe()
1982 		ret = -ENODEV;  in imx274_probe()
1987 	imx274->client = client;  in imx274_probe()
1988 	sd = &imx274->sd;  in imx274_probe()
1990 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;  in imx274_probe()
1993 	imx274->pad.flags = MEDIA_PAD_FL_SOURCE;  in imx274_probe()
1994 	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;  in imx274_probe()
1995 	ret = media_entity_pads_init(&sd->entity, 1, &imx274->pad);  in imx274_probe()
1997 		dev_err(&client->dev,  in imx274_probe()
2003 	imx274->reset_gpio = devm_gpiod_get_optional(&client->dev, "reset",  in imx274_probe()
2005 	if (IS_ERR(imx274->reset_gpio)) {  in imx274_probe()
2006 		if (PTR_ERR(imx274->reset_gpio) != -EPROBE_DEFER)  in imx274_probe()
2007 			dev_err(&client->dev, "Reset GPIO not setup in DT");  in imx274_probe()
2008 		ret = PTR_ERR(imx274->reset_gpio);  in imx274_probe()
2013 	ret = imx274_power_on(&client->dev);  in imx274_probe()
2015 		dev_err(&client->dev,  in imx274_probe()
2021 	ret = v4l2_ctrl_handler_init(&imx274->ctrls.handler, 4);  in imx274_probe()
2023 		dev_err(&client->dev,  in imx274_probe()
2028 	imx274->ctrls.handler.lock = &imx274->lock;  in imx274_probe()
2031 	imx274->ctrls.test_pattern = v4l2_ctrl_new_std_menu_items(  in imx274_probe()
2032 		&imx274->ctrls.handler, &imx274_ctrl_ops,  in imx274_probe()
2034 		ARRAY_SIZE(tp_qmenu) - 1, 0, 0, tp_qmenu);  in imx274_probe()
2036 	imx274->ctrls.gain = v4l2_ctrl_new_std(  in imx274_probe()
2037 		&imx274->ctrls.handler,  in imx274_probe()
2043 	imx274->ctrls.exposure = v4l2_ctrl_new_std(  in imx274_probe()
2044 		&imx274->ctrls.handler,  in imx274_probe()
2050 	imx274->ctrls.vflip = v4l2_ctrl_new_std(  in imx274_probe()
2051 		&imx274->ctrls.handler,  in imx274_probe()
2055 	imx274->sd.ctrl_handler = &imx274->ctrls.handler;  in imx274_probe()
2056 	if (imx274->ctrls.handler.error) {  in imx274_probe()
2057 		ret = imx274->ctrls.handler.error;  in imx274_probe()
2067 		dev_err(&client->dev,  in imx274_probe()
2073 	pm_runtime_set_active(&client->dev);  in imx274_probe()
2074 	pm_runtime_enable(&client->dev);  in imx274_probe()
2075 	pm_runtime_idle(&client->dev);  in imx274_probe()
2077 	dev_info(&client->dev, "imx274 : imx274 probe success !\n");  in imx274_probe()
2081 	v4l2_ctrl_handler_free(&imx274->ctrls.handler);  in imx274_probe()
2083 	imx274_power_off(&client->dev);  in imx274_probe()
2085 	media_entity_cleanup(&sd->entity);  in imx274_probe()
2087 	mutex_destroy(&imx274->lock);  in imx274_probe()
2096 	pm_runtime_disable(&client->dev);  in imx274_remove()
2097 	if (!pm_runtime_status_suspended(&client->dev))  in imx274_remove()
2098 		imx274_power_off(&client->dev);  in imx274_remove()
2099 	pm_runtime_set_suspended(&client->dev);  in imx274_remove()
2102 	v4l2_ctrl_handler_free(&imx274->ctrls.handler);  in imx274_remove()
2104 	media_entity_cleanup(&sd->entity);  in imx274_remove()
2105 	mutex_destroy(&imx274->lock);  in imx274_remove()