89 static int goodix_check_cfg_8(struct goodix_ts_data *ts,
91 static int goodix_check_cfg_16(struct goodix_ts_data *ts,
253 static int goodix_ts_read_input_report(struct goodix_ts_data *ts, u8 *data)  in goodix_ts_read_input_report()  argument
266 		error = goodix_i2c_read(ts->client, GOODIX_READ_COOR_ADDR,  in goodix_ts_read_input_report()
267 					data, ts->contact_size + 1);  in goodix_ts_read_input_report()
269 			dev_err(&ts->client->dev, "I2C transfer error: %d\n",  in goodix_ts_read_input_report()
276 			if (touch_num > ts->max_touch_num)  in goodix_ts_read_input_report()
280 				data += 1 + ts->contact_size;  in goodix_ts_read_input_report()
281 				error = goodix_i2c_read(ts->client,  in goodix_ts_read_input_report()
283 							1 + ts->contact_size,  in goodix_ts_read_input_report()
285 						ts->contact_size *  in goodix_ts_read_input_report()
304 static void goodix_ts_report_touch_8b(struct goodix_ts_data *ts, u8 *coor_data)  in goodix_ts_report_touch_8b()  argument
311 	input_mt_slot(ts->input_dev, id);  in goodix_ts_report_touch_8b()
312 	input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);  in goodix_ts_report_touch_8b()
313 	touchscreen_report_pos(ts->input_dev, &ts->prop,  in goodix_ts_report_touch_8b()
315 	input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, input_w);  in goodix_ts_report_touch_8b()
316 	input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, input_w);  in goodix_ts_report_touch_8b()
319 static void goodix_ts_report_touch_9b(struct goodix_ts_data *ts, u8 *coor_data)  in goodix_ts_report_touch_9b()  argument
326 	input_mt_slot(ts->input_dev, id);  in goodix_ts_report_touch_9b()
327 	input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);  in goodix_ts_report_touch_9b()
328 	touchscreen_report_pos(ts->input_dev, &ts->prop,  in goodix_ts_report_touch_9b()
330 	input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, input_w);  in goodix_ts_report_touch_9b()
331 	input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, input_w);  in goodix_ts_report_touch_9b()
342 static void goodix_process_events(struct goodix_ts_data *ts)  in goodix_process_events()  argument
348 	touch_num = goodix_ts_read_input_report(ts, point_data);  in goodix_process_events()
356 	input_report_key(ts->input_dev, KEY_LEFTMETA, point_data[0] & BIT(4));  in goodix_process_events()
359 		if (ts->contact_size == 9)  in goodix_process_events()
360 			goodix_ts_report_touch_9b(ts,  in goodix_process_events()
361 				&point_data[1 + ts->contact_size * i]);  in goodix_process_events()
363 			goodix_ts_report_touch_8b(ts,  in goodix_process_events()
364 				&point_data[1 + ts->contact_size * i]);  in goodix_process_events()
366 	input_mt_sync_frame(ts->input_dev);  in goodix_process_events()
367 	input_sync(ts->input_dev);  in goodix_process_events()
378 	struct goodix_ts_data *ts = dev_id;  in goodix_ts_irq_handler()  local
380 	goodix_process_events(ts);  in goodix_ts_irq_handler()
382 	if (goodix_i2c_write_u8(ts->client, GOODIX_READ_COOR_ADDR, 0) < 0)  in goodix_ts_irq_handler()
383 		dev_err(&ts->client->dev, "I2C write end_cmd error\n");  in goodix_ts_irq_handler()
388 static void goodix_free_irq(struct goodix_ts_data *ts)  in goodix_free_irq()  argument
390 	devm_free_irq(&ts->client->dev, ts->client->irq, ts);  in goodix_free_irq()
393 static int goodix_request_irq(struct goodix_ts_data *ts)  in goodix_request_irq()  argument
395 	return devm_request_threaded_irq(&ts->client->dev, ts->client->irq,  in goodix_request_irq()
397 					 ts->irq_flags, ts->client->name, ts);  in goodix_request_irq()
400 static int goodix_check_cfg_8(struct goodix_ts_data *ts,  in goodix_check_cfg_8()  argument
410 		dev_err(&ts->client->dev,  in goodix_check_cfg_8()
416 		dev_err(&ts->client->dev,  in goodix_check_cfg_8()
424 static int goodix_check_cfg_16(struct goodix_ts_data *ts,  in goodix_check_cfg_16()  argument
434 		dev_err(&ts->client->dev,  in goodix_check_cfg_16()
440 		dev_err(&ts->client->dev,  in goodix_check_cfg_16()
454 static int goodix_check_cfg(struct goodix_ts_data *ts,  in goodix_check_cfg()  argument
458 		dev_err(&ts->client->dev,  in goodix_check_cfg()
463 	return ts->chip->check_config(ts, cfg);  in goodix_check_cfg()
472 static int goodix_send_cfg(struct goodix_ts_data *ts,  in goodix_send_cfg()  argument
477 	error = goodix_check_cfg(ts, cfg);  in goodix_send_cfg()
481 	error = goodix_i2c_write(ts->client, ts->chip->config_addr, cfg->data,  in goodix_send_cfg()
484 		dev_err(&ts->client->dev, "Failed to write config data: %d",  in goodix_send_cfg()
488 	dev_dbg(&ts->client->dev, "Config sent successfully.");  in goodix_send_cfg()
496 static int goodix_int_sync(struct goodix_ts_data *ts)  in goodix_int_sync()  argument
500 	error = gpiod_direction_output(ts->gpiod_int, 0);  in goodix_int_sync()
506 	error = gpiod_direction_input(ts->gpiod_int);  in goodix_int_sync()
518 static int goodix_reset(struct goodix_ts_data *ts)  in goodix_reset()  argument
523 	error = gpiod_direction_output(ts->gpiod_rst, 0);  in goodix_reset()
530 	error = gpiod_direction_output(ts->gpiod_int, ts->client->addr == 0x14);  in goodix_reset()
536 	error = gpiod_direction_output(ts->gpiod_rst, 1);  in goodix_reset()
543 	error = gpiod_direction_input(ts->gpiod_rst);  in goodix_reset()
547 	error = goodix_int_sync(ts);  in goodix_reset()
559 static int goodix_get_gpio_config(struct goodix_ts_data *ts)  in goodix_get_gpio_config()  argument
565 	if (!ts->client)  in goodix_get_gpio_config()
567 	dev = &ts->client->dev;  in goodix_get_gpio_config()
569 	ts->avdd28 = devm_regulator_get(dev, "AVDD28");  in goodix_get_gpio_config()
570 	if (IS_ERR(ts->avdd28)) {  in goodix_get_gpio_config()
571 		error = PTR_ERR(ts->avdd28);  in goodix_get_gpio_config()
578 	ts->vddio = devm_regulator_get(dev, "VDDIO");  in goodix_get_gpio_config()
579 	if (IS_ERR(ts->vddio)) {  in goodix_get_gpio_config()
580 		error = PTR_ERR(ts->vddio);  in goodix_get_gpio_config()
597 	ts->gpiod_int = gpiod;  in goodix_get_gpio_config()
609 	ts->gpiod_rst = gpiod;  in goodix_get_gpio_config()
621 static void goodix_read_config(struct goodix_ts_data *ts)  in goodix_read_config()  argument
627 	error = goodix_i2c_read(ts->client, ts->chip->config_addr,  in goodix_read_config()
628 				config, ts->chip->config_len);  in goodix_read_config()
630 		dev_warn(&ts->client->dev, "Error reading config: %d\n",  in goodix_read_config()
632 		ts->int_trigger_type = GOODIX_INT_TRIGGER;  in goodix_read_config()
633 		ts->max_touch_num = GOODIX_MAX_CONTACTS;  in goodix_read_config()
637 	ts->int_trigger_type = config[TRIGGER_LOC] & 0x03;  in goodix_read_config()
638 	ts->max_touch_num = config[MAX_CONTACTS_LOC] & 0x0f;  in goodix_read_config()
643 		input_abs_set_max(ts->input_dev, ABS_MT_POSITION_X, x_max - 1);  in goodix_read_config()
644 		input_abs_set_max(ts->input_dev, ABS_MT_POSITION_Y, y_max - 1);  in goodix_read_config()
653 static int goodix_read_version(struct goodix_ts_data *ts)  in goodix_read_version()  argument
659 	error = goodix_i2c_read(ts->client, GOODIX_REG_ID, buf, sizeof(buf));  in goodix_read_version()
661 		dev_err(&ts->client->dev, "read version failed: %d\n", error);  in goodix_read_version()
667 	if (kstrtou16(id_str, 10, &ts->id))  in goodix_read_version()
668 		ts->id = 0x1001;  in goodix_read_version()
670 	ts->version = get_unaligned_le16(&buf[4]);  in goodix_read_version()
672 	dev_info(&ts->client->dev, "ID %d, version: %04x\n", ts->id,  in goodix_read_version()
673 		 ts->version);  in goodix_read_version()
713 static int goodix_configure_dev(struct goodix_ts_data *ts)  in goodix_configure_dev()  argument
717 	ts->int_trigger_type = GOODIX_INT_TRIGGER;  in goodix_configure_dev()
718 	ts->max_touch_num = GOODIX_MAX_CONTACTS;  in goodix_configure_dev()
720 	ts->input_dev = devm_input_allocate_device(&ts->client->dev);  in goodix_configure_dev()
721 	if (!ts->input_dev) {  in goodix_configure_dev()
722 		dev_err(&ts->client->dev, "Failed to allocate input device.");  in goodix_configure_dev()
726 	ts->input_dev->name = "Goodix Capacitive TouchScreen";  in goodix_configure_dev()
727 	ts->input_dev->phys = "input/ts";  in goodix_configure_dev()
728 	ts->input_dev->id.bustype = BUS_I2C;  in goodix_configure_dev()
729 	ts->input_dev->id.vendor = 0x0416;  in goodix_configure_dev()
730 	ts->input_dev->id.product = ts->id;  in goodix_configure_dev()
731 	ts->input_dev->id.version = ts->version;  in goodix_configure_dev()
734 	input_set_capability(ts->input_dev, EV_KEY, KEY_LEFTMETA);  in goodix_configure_dev()
736 	input_set_capability(ts->input_dev, EV_ABS, ABS_MT_POSITION_X);  in goodix_configure_dev()
737 	input_set_capability(ts->input_dev, EV_ABS, ABS_MT_POSITION_Y);  in goodix_configure_dev()
738 	input_set_abs_params(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0, 255, 0, 0);  in goodix_configure_dev()
739 	input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);  in goodix_configure_dev()
742 	goodix_read_config(ts);  in goodix_configure_dev()
745 	touchscreen_parse_properties(ts->input_dev, true, &ts->prop);  in goodix_configure_dev()
747 	if (!ts->prop.max_x || !ts->prop.max_y || !ts->max_touch_num) {  in goodix_configure_dev()
748 		dev_err(&ts->client->dev,  in goodix_configure_dev()
750 			ts->prop.max_x, ts->prop.max_y, ts->max_touch_num);  in goodix_configure_dev()
751 		ts->prop.max_x = GOODIX_MAX_WIDTH - 1;  in goodix_configure_dev()
752 		ts->prop.max_y = GOODIX_MAX_HEIGHT - 1;  in goodix_configure_dev()
753 		ts->max_touch_num = GOODIX_MAX_CONTACTS;  in goodix_configure_dev()
754 		input_abs_set_max(ts->input_dev,  in goodix_configure_dev()
755 				  ABS_MT_POSITION_X, ts->prop.max_x);  in goodix_configure_dev()
756 		input_abs_set_max(ts->input_dev,  in goodix_configure_dev()
757 				  ABS_MT_POSITION_Y, ts->prop.max_y);  in goodix_configure_dev()
761 		ts->prop.invert_x = true;  in goodix_configure_dev()
762 		ts->prop.invert_y = true;  in goodix_configure_dev()
763 		dev_dbg(&ts->client->dev,  in goodix_configure_dev()
768 		ts->contact_size = 9;  in goodix_configure_dev()
770 		dev_dbg(&ts->client->dev,  in goodix_configure_dev()
774 	error = input_mt_init_slots(ts->input_dev, ts->max_touch_num,  in goodix_configure_dev()
777 		dev_err(&ts->client->dev,  in goodix_configure_dev()
782 	error = input_register_device(ts->input_dev);  in goodix_configure_dev()
784 		dev_err(&ts->client->dev,  in goodix_configure_dev()
789 	ts->irq_flags = goodix_irq_flags[ts->int_trigger_type] | IRQF_ONESHOT;  in goodix_configure_dev()
790 	error = goodix_request_irq(ts);  in goodix_configure_dev()
792 		dev_err(&ts->client->dev, "request IRQ failed: %d\n", error);  in goodix_configure_dev()
809 	struct goodix_ts_data *ts = ctx;  in goodix_config_cb()  local
814 		error = goodix_send_cfg(ts, cfg);  in goodix_config_cb()
819 	goodix_configure_dev(ts);  in goodix_config_cb()
823 	complete_all(&ts->firmware_loading_complete);  in goodix_config_cb()
828 	struct goodix_ts_data *ts = arg;  in goodix_disable_regulators()  local
830 	regulator_disable(ts->vddio);  in goodix_disable_regulators()
831 	regulator_disable(ts->avdd28);  in goodix_disable_regulators()
837 	struct goodix_ts_data *ts;  in goodix_ts_probe()  local
847 	ts = devm_kzalloc(&client->dev, sizeof(*ts), GFP_KERNEL);  in goodix_ts_probe()
848 	if (!ts)  in goodix_ts_probe()
851 	ts->client = client;  in goodix_ts_probe()
852 	i2c_set_clientdata(client, ts);  in goodix_ts_probe()
853 	init_completion(&ts->firmware_loading_complete);  in goodix_ts_probe()
854 	ts->contact_size = GOODIX_CONTACT_SIZE;  in goodix_ts_probe()
856 	error = goodix_get_gpio_config(ts);  in goodix_ts_probe()
861 	error = regulator_enable(ts->avdd28);  in goodix_ts_probe()
869 	error = regulator_enable(ts->vddio);  in goodix_ts_probe()
874 		regulator_disable(ts->avdd28);  in goodix_ts_probe()
879 					 goodix_disable_regulators, ts);  in goodix_ts_probe()
883 	if (ts->gpiod_int && ts->gpiod_rst) {  in goodix_ts_probe()
885 		error = goodix_reset(ts);  in goodix_ts_probe()
898 	error = goodix_read_version(ts);  in goodix_ts_probe()
904 	ts->chip = goodix_get_chip_data(ts->id);  in goodix_ts_probe()
906 	if (ts->gpiod_int && ts->gpiod_rst) {  in goodix_ts_probe()
908 		ts->cfg_name = devm_kasprintf(&client->dev, GFP_KERNEL,  in goodix_ts_probe()
909 					      "goodix_%d_cfg.bin", ts->id);  in goodix_ts_probe()
910 		if (!ts->cfg_name)  in goodix_ts_probe()
913 		error = request_firmware_nowait(THIS_MODULE, true, ts->cfg_name,  in goodix_ts_probe()
914 						&client->dev, GFP_KERNEL, ts,  in goodix_ts_probe()
925 		error = goodix_configure_dev(ts);  in goodix_ts_probe()
935 	struct goodix_ts_data *ts = i2c_get_clientdata(client);  in goodix_ts_remove()  local
937 	if (ts->gpiod_int && ts->gpiod_rst)  in goodix_ts_remove()
938 		wait_for_completion(&ts->firmware_loading_complete);  in goodix_ts_remove()
946 	struct goodix_ts_data *ts = i2c_get_clientdata(client);  in goodix_suspend()  local
950 	if (!ts->gpiod_int || !ts->gpiod_rst) {  in goodix_suspend()
955 	wait_for_completion(&ts->firmware_loading_complete);  in goodix_suspend()
958 	goodix_free_irq(ts);  in goodix_suspend()
961 	error = gpiod_direction_output(ts->gpiod_int, 0);  in goodix_suspend()
963 		goodix_request_irq(ts);  in goodix_suspend()
969 	error = goodix_i2c_write_u8(ts->client, GOODIX_REG_COMMAND,  in goodix_suspend()
972 		dev_err(&ts->client->dev, "Screen off command failed\n");  in goodix_suspend()
973 		gpiod_direction_input(ts->gpiod_int);  in goodix_suspend()
974 		goodix_request_irq(ts);  in goodix_suspend()
990 	struct goodix_ts_data *ts = i2c_get_clientdata(client);  in goodix_resume()  local
993 	if (!ts->gpiod_int || !ts->gpiod_rst) {  in goodix_resume()
1002 	error = gpiod_direction_output(ts->gpiod_int, 1);  in goodix_resume()
1008 	error = goodix_int_sync(ts);  in goodix_resume()
1012 	error = goodix_request_irq(ts);  in goodix_resume()