3  * Driver for MT9P031 CMOS Image Sensor from Aptina
118 struct mt9p031 {  struct
148 static struct mt9p031 *to_mt9p031(struct v4l2_subdev *sd)  in to_mt9p031()  argument
150 	return container_of(sd, struct mt9p031, subdev);  in to_mt9p031()
163 static int mt9p031_set_output_control(struct mt9p031 *mt9p031, u16 clear,  in mt9p031_set_output_control()  argument
166 	struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);  in mt9p031_set_output_control()
167 	u16 value = (mt9p031->output_control & ~clear) | set;  in mt9p031_set_output_control()
174 	mt9p031->output_control = value;  in mt9p031_set_output_control()
178 static int mt9p031_set_mode2(struct mt9p031 *mt9p031, u16 clear, u16 set)  in mt9p031_set_mode2()  argument
180 	struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);  in mt9p031_set_mode2()
181 	u16 value = (mt9p031->mode2 & ~clear) | set;  in mt9p031_set_mode2()
188 	mt9p031->mode2 = value;  in mt9p031_set_mode2()
192 static int mt9p031_reset(struct mt9p031 *mt9p031)  in mt9p031_reset()  argument
194 	struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);  in mt9p031_reset()
206 			    MT9P031_PIXEL_CLOCK_DIVIDE(mt9p031->clk_div));  in mt9p031_reset()
210 	return mt9p031_set_output_control(mt9p031, MT9P031_OUTPUT_CONTROL_CEN,  in mt9p031_reset()
214 static int mt9p031_clk_setup(struct mt9p031 *mt9p031)  in mt9p031_clk_setup()  argument
232 	struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);  in mt9p031_clk_setup()
236 	mt9p031->clk = devm_clk_get(&client->dev, NULL);  in mt9p031_clk_setup()
237 	if (IS_ERR(mt9p031->clk))  in mt9p031_clk_setup()
238 		return PTR_ERR(mt9p031->clk);  in mt9p031_clk_setup()
240 	ret = clk_set_rate(mt9p031->clk, mt9p031->ext_freq);  in mt9p031_clk_setup()
244 	ext_freq = clk_get_rate(mt9p031->clk);  in mt9p031_clk_setup()
252 		div = DIV_ROUND_UP(ext_freq, mt9p031->target_freq);  in mt9p031_clk_setup()
255 		mt9p031->clk_div = min_t(unsigned int, div, 64);  in mt9p031_clk_setup()
256 		mt9p031->use_pll = false;  in mt9p031_clk_setup()
261 	mt9p031->pll.ext_clock = ext_freq;  in mt9p031_clk_setup()
262 	mt9p031->pll.pix_clock = mt9p031->target_freq;  in mt9p031_clk_setup()
263 	mt9p031->use_pll = true;  in mt9p031_clk_setup()
265 	return aptina_pll_calculate(&client->dev, &limits, &mt9p031->pll);  in mt9p031_clk_setup()
268 static int mt9p031_pll_enable(struct mt9p031 *mt9p031)  in mt9p031_pll_enable()  argument
270 	struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);  in mt9p031_pll_enable()
273 	if (!mt9p031->use_pll)  in mt9p031_pll_enable()
282 			    (mt9p031->pll.m << 8) | (mt9p031->pll.n - 1));  in mt9p031_pll_enable()
286 	ret = mt9p031_write(client, MT9P031_PLL_CONFIG_2, mt9p031->pll.p1 - 1);  in mt9p031_pll_enable()
297 static inline int mt9p031_pll_disable(struct mt9p031 *mt9p031)  in mt9p031_pll_disable()  argument
299 	struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);  in mt9p031_pll_disable()
301 	if (!mt9p031->use_pll)  in mt9p031_pll_disable()
308 static int mt9p031_power_on(struct mt9p031 *mt9p031)  in mt9p031_power_on()  argument
314 	if (mt9p031->reset) {  in mt9p031_power_on()
315 		gpiod_set_value(mt9p031->reset, 1);  in mt9p031_power_on()
320 	ret = regulator_bulk_enable(ARRAY_SIZE(mt9p031->regulators),  in mt9p031_power_on()
321 				   mt9p031->regulators);  in mt9p031_power_on()
326 	if (mt9p031->clk) {  in mt9p031_power_on()
327 		ret = clk_prepare_enable(mt9p031->clk);  in mt9p031_power_on()
329 			regulator_bulk_disable(ARRAY_SIZE(mt9p031->regulators),  in mt9p031_power_on()
330 					       mt9p031->regulators);  in mt9p031_power_on()
336 	if (mt9p031->reset) {  in mt9p031_power_on()
337 		gpiod_set_value(mt9p031->reset, 0);  in mt9p031_power_on()
339 		rate = clk_get_rate(mt9p031->clk);  in mt9p031_power_on()
349 static void mt9p031_power_off(struct mt9p031 *mt9p031)  in mt9p031_power_off()  argument
351 	if (mt9p031->reset) {  in mt9p031_power_off()
352 		gpiod_set_value(mt9p031->reset, 1);  in mt9p031_power_off()
356 	regulator_bulk_disable(ARRAY_SIZE(mt9p031->regulators),  in mt9p031_power_off()
357 			       mt9p031->regulators);  in mt9p031_power_off()
359 	clk_disable_unprepare(mt9p031->clk);  in mt9p031_power_off()
362 static int __mt9p031_set_power(struct mt9p031 *mt9p031, bool on)  in __mt9p031_set_power()  argument
364 	struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);  in __mt9p031_set_power()
368 		mt9p031_power_off(mt9p031);  in __mt9p031_set_power()
372 	ret = mt9p031_power_on(mt9p031);  in __mt9p031_set_power()
376 	ret = mt9p031_reset(mt9p031);  in __mt9p031_set_power()
383 	if (mt9p031->pixclk_pol) {  in __mt9p031_set_power()
390 	return v4l2_ctrl_handler_setup(&mt9p031->ctrls);  in __mt9p031_set_power()
397 static int mt9p031_set_params(struct mt9p031 *mt9p031)  in mt9p031_set_params()  argument
399 	struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);  in mt9p031_set_params()
400 	struct v4l2_mbus_framefmt *format = &mt9p031->format;  in mt9p031_set_params()
401 	const struct v4l2_rect *crop = &mt9p031->crop;  in mt9p031_set_params()
464 	struct mt9p031 *mt9p031 = to_mt9p031(subdev);  in mt9p031_s_stream()  local
483 		ret = mt9p031_set_output_control(mt9p031,  in mt9p031_s_stream()
488 		return mt9p031_pll_disable(mt9p031);  in mt9p031_s_stream()
491 	ret = mt9p031_set_params(mt9p031);  in mt9p031_s_stream()
496 	ret = mt9p031_set_output_control(mt9p031, 0,  in mt9p031_s_stream()
511 	return mt9p031_pll_enable(mt9p031);  in mt9p031_s_stream()
518 	struct mt9p031 *mt9p031 = to_mt9p031(subdev);  in mt9p031_enum_mbus_code()  local
523 	code->code = mt9p031->format.code;  in mt9p031_enum_mbus_code()
531 	struct mt9p031 *mt9p031 = to_mt9p031(subdev);  in mt9p031_enum_frame_size()  local
533 	if (fse->index >= 8 || fse->code != mt9p031->format.code)  in mt9p031_enum_frame_size()
546 __mt9p031_get_pad_format(struct mt9p031 *mt9p031,  in __mt9p031_get_pad_format()  argument
554 		return &mt9p031->format;  in __mt9p031_get_pad_format()
561 __mt9p031_get_pad_crop(struct mt9p031 *mt9p031,  in __mt9p031_get_pad_crop()  argument
569 		return &mt9p031->crop;  in __mt9p031_get_pad_crop()
579 	struct mt9p031 *mt9p031 = to_mt9p031(subdev);  in mt9p031_get_format()  local
581 	fmt->format = *__mt9p031_get_pad_format(mt9p031, sd_state, fmt->pad,  in mt9p031_get_format()
590 	struct mt9p031 *mt9p031 = to_mt9p031(subdev);  in mt9p031_set_format()  local
598 	__crop = __mt9p031_get_pad_crop(mt9p031, sd_state, format->pad,  in mt9p031_set_format()
614 	__format = __mt9p031_get_pad_format(mt9p031, sd_state, format->pad,  in mt9p031_set_format()
628 	struct mt9p031 *mt9p031 = to_mt9p031(subdev);  in mt9p031_get_selection()  local
639 		sel->r = *__mt9p031_get_pad_crop(mt9p031, sd_state,  in mt9p031_get_selection()
652 	struct mt9p031 *mt9p031 = to_mt9p031(subdev);  in mt9p031_set_selection()  local
679 	__crop = __mt9p031_get_pad_crop(mt9p031, sd_state, sel->pad,  in mt9p031_set_selection()
686 		__format = __mt9p031_get_pad_format(mt9p031, sd_state,  in mt9p031_set_selection()
702 	struct mt9p031 *mt9p031 = to_mt9p031(subdev);  in mt9p031_init_state()  local
708 	crop = __mt9p031_get_pad_crop(mt9p031, sd_state, 0, which);  in mt9p031_init_state()
714 	format = __mt9p031_get_pad_format(mt9p031, sd_state, 0, which);  in mt9p031_init_state()
715 	format->code = mt9p031->code;  in mt9p031_init_state()
733 static int mt9p031_restore_blc(struct mt9p031 *mt9p031)  in mt9p031_restore_blc()  argument
735 	struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);  in mt9p031_restore_blc()
738 	if (mt9p031->blc_auto->cur.val != 0) {  in mt9p031_restore_blc()
739 		ret = mt9p031_set_mode2(mt9p031, 0,  in mt9p031_restore_blc()
745 	if (mt9p031->blc_offset->cur.val != 0) {  in mt9p031_restore_blc()
747 				    mt9p031->blc_offset->cur.val);  in mt9p031_restore_blc()
757 	struct mt9p031 *mt9p031 =  in mt9p031_s_ctrl()  local
758 			container_of(ctrl->handler, struct mt9p031, ctrls);  in mt9p031_s_ctrl()
759 	struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);  in mt9p031_s_ctrl()
805 			return mt9p031_set_mode2(mt9p031,  in mt9p031_s_ctrl()
808 			return mt9p031_set_mode2(mt9p031,  in mt9p031_s_ctrl()
813 			return mt9p031_set_mode2(mt9p031,  in mt9p031_s_ctrl()
816 			return mt9p031_set_mode2(mt9p031,  in mt9p031_s_ctrl()
825 		v4l2_ctrl_activate(mt9p031->blc_auto, ctrl->val == 0);  in mt9p031_s_ctrl()
826 		v4l2_ctrl_activate(mt9p031->blc_offset, ctrl->val == 0);  in mt9p031_s_ctrl()
830 			ret = mt9p031_restore_blc(mt9p031);  in mt9p031_s_ctrl()
848 		ret = mt9p031_set_mode2(mt9p031, MT9P031_READ_MODE_2_ROW_BLC,  in mt9p031_s_ctrl()
862 		ret = mt9p031_set_mode2(mt9p031,  in mt9p031_s_ctrl()
964 	struct mt9p031 *mt9p031 = to_mt9p031(subdev);  in mt9p031_set_power()  local
967 	mutex_lock(&mt9p031->power_lock);  in mt9p031_set_power()
972 	if (mt9p031->power_count == !on) {  in mt9p031_set_power()
973 		ret = __mt9p031_set_power(mt9p031, !!on);  in mt9p031_set_power()
979 	mt9p031->power_count += on ? 1 : -1;  in mt9p031_set_power()
980 	WARN_ON(mt9p031->power_count < 0);  in mt9p031_set_power()
983 	mutex_unlock(&mt9p031->power_lock);  in mt9p031_set_power()
994 	struct mt9p031 *mt9p031 = to_mt9p031(subdev);  in mt9p031_registered()  local
998 	ret = mt9p031_power_on(mt9p031);  in mt9p031_registered()
1000 		dev_err(&client->dev, "MT9P031 power up failed\n");  in mt9p031_registered()
1006 	mt9p031_power_off(mt9p031);  in mt9p031_registered()
1009 		dev_err(&client->dev, "MT9P031 not detected, wrong version "  in mt9p031_registered()
1014 	dev_info(&client->dev, "MT9P031 detected at address 0x%02x\n",  in mt9p031_registered()
1064 static int mt9p031_parse_properties(struct mt9p031 *mt9p031, struct device *dev)  in mt9p031_parse_properties()  argument
1082 				 &mt9p031->ext_freq);  in mt9p031_parse_properties()
1084 				 &mt9p031->target_freq);  in mt9p031_parse_properties()
1086 	mt9p031->pixclk_pol = !!(endpoint.bus.parallel.flags &  in mt9p031_parse_properties()
1095 	struct mt9p031 *mt9p031;  in mt9p031_probe()  local
1105 	mt9p031 = devm_kzalloc(&client->dev, sizeof(*mt9p031), GFP_KERNEL);  in mt9p031_probe()
1106 	if (mt9p031 == NULL)  in mt9p031_probe()
1109 	ret = mt9p031_parse_properties(mt9p031, &client->dev);  in mt9p031_probe()
1113 	mt9p031->output_control	= MT9P031_OUTPUT_CONTROL_DEF;  in mt9p031_probe()
1114 	mt9p031->mode2 = MT9P031_READ_MODE_2_ROW_BLC;  in mt9p031_probe()
1115 	mt9p031->code = (uintptr_t)device_get_match_data(&client->dev);  in mt9p031_probe()
1117 	mt9p031->regulators[0].supply = "vdd";  in mt9p031_probe()
1118 	mt9p031->regulators[1].supply = "vdd_io";  in mt9p031_probe()
1119 	mt9p031->regulators[2].supply = "vaa";  in mt9p031_probe()
1121 	ret = devm_regulator_bulk_get(&client->dev, 3, mt9p031->regulators);  in mt9p031_probe()
1127 	mutex_init(&mt9p031->power_lock);  in mt9p031_probe()
1129 	v4l2_ctrl_handler_init(&mt9p031->ctrls, ARRAY_SIZE(mt9p031_ctrls) + 6);  in mt9p031_probe()
1131 	v4l2_ctrl_new_std(&mt9p031->ctrls, &mt9p031_ctrl_ops,  in mt9p031_probe()
1135 	v4l2_ctrl_new_std(&mt9p031->ctrls, &mt9p031_ctrl_ops,  in mt9p031_probe()
1138 	v4l2_ctrl_new_std(&mt9p031->ctrls, &mt9p031_ctrl_ops,  in mt9p031_probe()
1140 	v4l2_ctrl_new_std(&mt9p031->ctrls, &mt9p031_ctrl_ops,  in mt9p031_probe()
1142 	v4l2_ctrl_new_std(&mt9p031->ctrls, &mt9p031_ctrl_ops,  in mt9p031_probe()
1143 			  V4L2_CID_PIXEL_RATE, mt9p031->target_freq,  in mt9p031_probe()
1144 			  mt9p031->target_freq, 1, mt9p031->target_freq);  in mt9p031_probe()
1145 	v4l2_ctrl_new_std_menu_items(&mt9p031->ctrls, &mt9p031_ctrl_ops,  in mt9p031_probe()
1151 		v4l2_ctrl_new_custom(&mt9p031->ctrls, &mt9p031_ctrls[i], NULL);  in mt9p031_probe()
1153 	mt9p031->subdev.ctrl_handler = &mt9p031->ctrls;  in mt9p031_probe()
1155 	if (mt9p031->ctrls.error) {  in mt9p031_probe()
1157 		       __func__, mt9p031->ctrls.error);  in mt9p031_probe()
1158 		ret = mt9p031->ctrls.error;  in mt9p031_probe()
1162 	mt9p031->blc_auto = v4l2_ctrl_find(&mt9p031->ctrls, V4L2_CID_BLC_AUTO);  in mt9p031_probe()
1163 	mt9p031->blc_offset = v4l2_ctrl_find(&mt9p031->ctrls,  in mt9p031_probe()
1166 	v4l2_i2c_subdev_init(&mt9p031->subdev, client, &mt9p031_subdev_ops);  in mt9p031_probe()
1167 	mt9p031->subdev.internal_ops = &mt9p031_subdev_internal_ops;  in mt9p031_probe()
1169 	mt9p031->subdev.entity.function = MEDIA_ENT_F_CAM_SENSOR;  in mt9p031_probe()
1170 	mt9p031->pad.flags = MEDIA_PAD_FL_SOURCE;  in mt9p031_probe()
1171 	ret = media_entity_pads_init(&mt9p031->subdev.entity, 1, &mt9p031->pad);  in mt9p031_probe()
1175 	mt9p031->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;  in mt9p031_probe()
1177 	ret = mt9p031_init_state(&mt9p031->subdev, NULL);  in mt9p031_probe()
1181 	mt9p031->reset = devm_gpiod_get_optional(&client->dev, "reset",  in mt9p031_probe()
1184 	ret = mt9p031_clk_setup(mt9p031);  in mt9p031_probe()
1188 	ret = v4l2_async_register_subdev(&mt9p031->subdev);  in mt9p031_probe()
1192 		v4l2_ctrl_handler_free(&mt9p031->ctrls);  in mt9p031_probe()
1193 		media_entity_cleanup(&mt9p031->subdev.entity);  in mt9p031_probe()
1194 		mutex_destroy(&mt9p031->power_lock);  in mt9p031_probe()
1203 	struct mt9p031 *mt9p031 = to_mt9p031(subdev);  in mt9p031_remove()  local
1205 	v4l2_ctrl_handler_free(&mt9p031->ctrls);  in mt9p031_remove()
1208 	mutex_destroy(&mt9p031->power_lock);  in mt9p031_remove()
1221 	{ .compatible = "aptina,mt9p031", .data = &mt9p031_models_bayer },
1230 		.name = "mt9p031",
1238 MODULE_DESCRIPTION("Aptina MT9P031 Camera driver");