1 // SPDX-License-Identifier: GPL-2.0-only
63 	rval = regmap_read(pchip->regmap, reg, &reg_val);  in lm3630a_read()
72 	return regmap_write(pchip->regmap, reg, data);  in lm3630a_write()
79 	return regmap_update_bits(pchip->regmap, reg, mask, data);  in lm3630a_update()
86 	struct lm3630a_platform_data *pdata = pchip->pdata;  in lm3630a_chip_init()
92 	rval |= lm3630a_update(pchip, REG_CONFIG, 0x07, pdata->pwm_ctrl);  in lm3630a_chip_init()
100 	rval |= lm3630a_update(pchip, REG_CTRL, 0x14, pdata->leda_ctrl);  in lm3630a_chip_init()
101 	rval |= lm3630a_update(pchip, REG_CTRL, 0x0B, pdata->ledb_ctrl);  in lm3630a_chip_init()
104 	rval |= lm3630a_write(pchip, REG_BRT_A, pdata->leda_init_brt);  in lm3630a_chip_init()
105 	rval |= lm3630a_write(pchip, REG_BRT_B, pdata->ledb_init_brt);  in lm3630a_chip_init()
108 		dev_err(pchip->dev, "i2c failed to access register\n");  in lm3630a_chip_init()
122 		dev_err(pchip->dev,  in lm3630a_delayed_func()
127 	dev_info(pchip->dev, "REG_INT_STATUS Register is 0x%x\n", rval);  in lm3630a_delayed_func()
136 	queue_delayed_work(pchip->irqthread, &pchip->work, delay);  in lm3630a_isr_func()
140 		dev_err(pchip->dev, "i2c failed to access register\n");  in lm3630a_isr_func()
154 	INIT_DELAYED_WORK(&pchip->work, lm3630a_delayed_func);  in lm3630a_intr_config()
155 	pchip->irqthread = create_singlethread_workqueue("lm3630a-irqthd");  in lm3630a_intr_config()
156 	if (!pchip->irqthread) {  in lm3630a_intr_config()
157 		dev_err(pchip->dev, "create irq thread fail\n");  in lm3630a_intr_config()
158 		return -ENOMEM;  in lm3630a_intr_config()
161 	    (pchip->irq, NULL, lm3630a_isr_func,  in lm3630a_intr_config()
163 		dev_err(pchip->dev, "request threaded irq fail\n");  in lm3630a_intr_config()
164 		destroy_workqueue(pchip->irqthread);  in lm3630a_intr_config()
165 		return -ENOMEM;  in lm3630a_intr_config()
172 	unsigned int period = pchip->pdata->pwm_period;  in lm3630a_pwm_ctrl()
175 	pwm_config(pchip->pwmd, duty, period);  in lm3630a_pwm_ctrl()
177 		pwm_enable(pchip->pwmd);  in lm3630a_pwm_ctrl()
179 		pwm_disable(pchip->pwmd);  in lm3630a_pwm_ctrl()
187 	enum lm3630a_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;  in lm3630a_bank_a_update_status()
191 		lm3630a_pwm_ctrl(pchip, bl->props.brightness,  in lm3630a_bank_a_update_status()
192 				 bl->props.max_brightness);  in lm3630a_bank_a_update_status()
193 		return bl->props.brightness;  in lm3630a_bank_a_update_status()
202 	ret = lm3630a_write(pchip, REG_BRT_A, bl->props.brightness);  in lm3630a_bank_a_update_status()
203 	if (bl->props.brightness < 0x4)  in lm3630a_bank_a_update_status()
213 	dev_err(pchip->dev, "i2c failed to access\n");  in lm3630a_bank_a_update_status()
214 	return bl->props.brightness;  in lm3630a_bank_a_update_status()
221 	enum lm3630a_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;  in lm3630a_bank_a_get_brightness()
246 	bl->props.brightness = brightness;  in lm3630a_bank_a_get_brightness()
247 	return bl->props.brightness;  in lm3630a_bank_a_get_brightness()
249 	dev_err(pchip->dev, "i2c failed to access register\n");  in lm3630a_bank_a_get_brightness()
264 	enum lm3630a_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;  in lm3630a_bank_b_update_status()
268 		lm3630a_pwm_ctrl(pchip, bl->props.brightness,  in lm3630a_bank_b_update_status()
269 				 bl->props.max_brightness);  in lm3630a_bank_b_update_status()
270 		return bl->props.brightness;  in lm3630a_bank_b_update_status()
279 	ret = lm3630a_write(pchip, REG_BRT_B, bl->props.brightness);  in lm3630a_bank_b_update_status()
280 	if (bl->props.brightness < 0x4)  in lm3630a_bank_b_update_status()
290 	dev_err(pchip->dev, "i2c failed to access REG_CTRL\n");  in lm3630a_bank_b_update_status()
291 	return bl->props.brightness;  in lm3630a_bank_b_update_status()
298 	enum lm3630a_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;  in lm3630a_bank_b_get_brightness()
323 	bl->props.brightness = brightness;  in lm3630a_bank_b_get_brightness()
324 	return bl->props.brightness;  in lm3630a_bank_b_get_brightness()
326 	dev_err(pchip->dev, "i2c failed to access register\n");  in lm3630a_bank_b_get_brightness()
338 	struct lm3630a_platform_data *pdata = pchip->pdata;  in lm3630a_backlight_register()
343 	if (pdata->leda_ctrl != LM3630A_LEDA_DISABLE) {  in lm3630a_backlight_register()
344 		props.brightness = pdata->leda_init_brt;  in lm3630a_backlight_register()
345 		props.max_brightness = pdata->leda_max_brt;  in lm3630a_backlight_register()
346 		label = pdata->leda_label ? pdata->leda_label : "lm3630a_leda";  in lm3630a_backlight_register()
347 		pchip->bleda =  in lm3630a_backlight_register()
348 		    devm_backlight_device_register(pchip->dev, label,  in lm3630a_backlight_register()
349 						   pchip->dev, pchip,  in lm3630a_backlight_register()
351 		if (IS_ERR(pchip->bleda))  in lm3630a_backlight_register()
352 			return PTR_ERR(pchip->bleda);  in lm3630a_backlight_register()
355 	if ((pdata->ledb_ctrl != LM3630A_LEDB_DISABLE) &&  in lm3630a_backlight_register()
356 	    (pdata->ledb_ctrl != LM3630A_LEDB_ON_A)) {  in lm3630a_backlight_register()
357 		props.brightness = pdata->ledb_init_brt;  in lm3630a_backlight_register()
358 		props.max_brightness = pdata->ledb_max_brt;  in lm3630a_backlight_register()
359 		label = pdata->ledb_label ? pdata->ledb_label : "lm3630a_ledb";  in lm3630a_backlight_register()
360 		pchip->bledb =  in lm3630a_backlight_register()
361 		    devm_backlight_device_register(pchip->dev, label,  in lm3630a_backlight_register()
362 						   pchip->dev, pchip,  in lm3630a_backlight_register()
364 		if (IS_ERR(pchip->bledb))  in lm3630a_backlight_register()
365 			return PTR_ERR(pchip->bledb);  in lm3630a_backlight_register()
379 	u32 sources[LM3630A_NUM_SINKS];  in lm3630a_parse_led_sources()  local
382 	num_sources = fwnode_property_count_u32(node, "led-sources");  in lm3630a_parse_led_sources()
385 	else if (num_sources > ARRAY_SIZE(sources))  in lm3630a_parse_led_sources()
386 		return -EINVAL;  in lm3630a_parse_led_sources()
388 	ret = fwnode_property_read_u32_array(node, "led-sources", sources,  in lm3630a_parse_led_sources()
394 		if (sources[i] != LM3630A_SINK_0 && sources[i] != LM3630A_SINK_1)  in lm3630a_parse_led_sources()
395 			return -EINVAL;  in lm3630a_parse_led_sources()
397 		ret |= BIT(sources[i]);  in lm3630a_parse_led_sources()
416 		return -EINVAL;  in lm3630a_parse_bank()
423 		return -EINVAL;  in lm3630a_parse_bank()
428 					   "ti,linear-mapping-mode");  in lm3630a_parse_bank()
432 			return -EINVAL;  in lm3630a_parse_bank()
434 		pdata->ledb_ctrl = linear ?  in lm3630a_parse_bank()
439 			return -EINVAL;  in lm3630a_parse_bank()
441 		pdata->leda_ctrl = linear ?  in lm3630a_parse_bank()
446 			pdata->ledb_ctrl = LM3630A_LEDB_ON_A;  in lm3630a_parse_bank()
452 			pdata->ledb_label = label;  in lm3630a_parse_bank()
454 			pdata->leda_label = label;  in lm3630a_parse_bank()
457 	ret = fwnode_property_read_u32(node, "default-brightness",  in lm3630a_parse_bank()
461 			pdata->ledb_init_brt = val;  in lm3630a_parse_bank()
463 			pdata->leda_init_brt = val;  in lm3630a_parse_bank()
466 	ret = fwnode_property_read_u32(node, "max-brightness", &val);  in lm3630a_parse_bank()
469 			pdata->ledb_max_brt = val;  in lm3630a_parse_bank()
471 			pdata->leda_max_brt = val;  in lm3630a_parse_bank()
480 	int ret = -ENODEV, seen_led_sources = 0;  in lm3630a_parse_node()
483 	device_for_each_child_node(pchip->dev, node) {  in lm3630a_parse_node()
495 	struct lm3630a_platform_data *pdata = dev_get_platdata(&client->dev);  in lm3630a_probe()
499 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {  in lm3630a_probe()
500 		dev_err(&client->dev, "fail : i2c functionality check\n");  in lm3630a_probe()
501 		return -EOPNOTSUPP;  in lm3630a_probe()
504 	pchip = devm_kzalloc(&client->dev, sizeof(struct lm3630a_chip),  in lm3630a_probe()
507 		return -ENOMEM;  in lm3630a_probe()
508 	pchip->dev = &client->dev;  in lm3630a_probe()
510 	pchip->regmap = devm_regmap_init_i2c(client, &lm3630a_regmap);  in lm3630a_probe()
511 	if (IS_ERR(pchip->regmap)) {  in lm3630a_probe()
512 		rval = PTR_ERR(pchip->regmap);  in lm3630a_probe()
513 		dev_err(&client->dev, "fail : allocate reg. map: %d\n", rval);  in lm3630a_probe()
519 		pdata = devm_kzalloc(pchip->dev,  in lm3630a_probe()
523 			return -ENOMEM;  in lm3630a_probe()
526 		pdata->leda_max_brt = LM3630A_MAX_BRIGHTNESS;  in lm3630a_probe()
527 		pdata->ledb_max_brt = LM3630A_MAX_BRIGHTNESS;  in lm3630a_probe()
528 		pdata->leda_init_brt = LM3630A_MAX_BRIGHTNESS;  in lm3630a_probe()
529 		pdata->ledb_init_brt = LM3630A_MAX_BRIGHTNESS;  in lm3630a_probe()
533 			dev_err(&client->dev, "fail : parse node\n");  in lm3630a_probe()
537 	pchip->pdata = pdata;  in lm3630a_probe()
539 	pchip->enable_gpio = devm_gpiod_get_optional(&client->dev, "enable",  in lm3630a_probe()
541 	if (IS_ERR(pchip->enable_gpio)) {  in lm3630a_probe()
542 		rval = PTR_ERR(pchip->enable_gpio);  in lm3630a_probe()
549 		dev_err(&client->dev, "fail : init chip\n");  in lm3630a_probe()
555 		dev_err(&client->dev, "fail : backlight register.\n");  in lm3630a_probe()
559 	if (pdata->pwm_ctrl != LM3630A_PWM_DISABLE) {  in lm3630a_probe()
560 		pchip->pwmd = devm_pwm_get(pchip->dev, "lm3630a-pwm");  in lm3630a_probe()
561 		if (IS_ERR(pchip->pwmd)) {  in lm3630a_probe()
562 			dev_err(&client->dev, "fail : get pwm device\n");  in lm3630a_probe()
563 			return PTR_ERR(pchip->pwmd);  in lm3630a_probe()
570 		pwm_apply_args(pchip->pwmd);  in lm3630a_probe()
574 	pchip->irq = client->irq;  in lm3630a_probe()
575 	if (pchip->irq) {  in lm3630a_probe()
580 	dev_info(&client->dev, "LM3630A backlight register OK.\n");  in lm3630a_probe()
591 		dev_err(pchip->dev, "i2c failed to access register\n");  in lm3630a_remove()
595 		dev_err(pchip->dev, "i2c failed to access register\n");  in lm3630a_remove()
597 	if (pchip->irq) {  in lm3630a_remove()
598 		free_irq(pchip->irq, pchip);  in lm3630a_remove()
599 		flush_workqueue(pchip->irqthread);  in lm3630a_remove()
600 		destroy_workqueue(pchip->irqthread);  in lm3630a_remove()
633 MODULE_AUTHOR("LDD MLP <ldd-mlp@list.ti.com>");