88 static int goodix_check_cfg_8(struct goodix_ts_data *ts,
90 static int goodix_check_cfg_16(struct goodix_ts_data *ts,
237 static int goodix_ts_read_input_report(struct goodix_ts_data *ts, u8 *data)  in goodix_ts_read_input_report()  argument
250 		error = goodix_i2c_read(ts->client, GOODIX_READ_COOR_ADDR,  in goodix_ts_read_input_report()
253 			dev_err(&ts->client->dev, "I2C transfer error: %d\n",  in goodix_ts_read_input_report()
260 			if (touch_num > ts->max_touch_num)  in goodix_ts_read_input_report()
265 				error = goodix_i2c_read(ts->client,  in goodix_ts_read_input_report()
288 static void goodix_ts_report_touch(struct goodix_ts_data *ts, u8 *coor_data)  in goodix_ts_report_touch()  argument
295 	input_mt_slot(ts->input_dev, id);  in goodix_ts_report_touch()
296 	input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);  in goodix_ts_report_touch()
297 	touchscreen_report_pos(ts->input_dev, &ts->prop,  in goodix_ts_report_touch()
299 	input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, input_w);  in goodix_ts_report_touch()
300 	input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, input_w);  in goodix_ts_report_touch()
311 static void goodix_process_events(struct goodix_ts_data *ts)  in goodix_process_events()  argument
317 	touch_num = goodix_ts_read_input_report(ts, point_data);  in goodix_process_events()
325 	input_report_key(ts->input_dev, KEY_LEFTMETA, point_data[0] & BIT(4));  in goodix_process_events()
328 		goodix_ts_report_touch(ts,  in goodix_process_events()
331 	input_mt_sync_frame(ts->input_dev);  in goodix_process_events()
332 	input_sync(ts->input_dev);  in goodix_process_events()
343 	struct goodix_ts_data *ts = dev_id;  in goodix_ts_irq_handler()  local
345 	goodix_process_events(ts);  in goodix_ts_irq_handler()
347 	if (goodix_i2c_write_u8(ts->client, GOODIX_READ_COOR_ADDR, 0) < 0)  in goodix_ts_irq_handler()
348 		dev_err(&ts->client->dev, "I2C write end_cmd error\n");  in goodix_ts_irq_handler()
353 static void goodix_free_irq(struct goodix_ts_data *ts)  in goodix_free_irq()  argument
355 	devm_free_irq(&ts->client->dev, ts->client->irq, ts);  in goodix_free_irq()
358 static int goodix_request_irq(struct goodix_ts_data *ts)  in goodix_request_irq()  argument
360 	return devm_request_threaded_irq(&ts->client->dev, ts->client->irq,  in goodix_request_irq()
362 					 ts->irq_flags, ts->client->name, ts);  in goodix_request_irq()
365 static int goodix_check_cfg_8(struct goodix_ts_data *ts,  in goodix_check_cfg_8()  argument
375 		dev_err(&ts->client->dev,  in goodix_check_cfg_8()
381 		dev_err(&ts->client->dev,  in goodix_check_cfg_8()
389 static int goodix_check_cfg_16(struct goodix_ts_data *ts,  in goodix_check_cfg_16()  argument
399 		dev_err(&ts->client->dev,  in goodix_check_cfg_16()
405 		dev_err(&ts->client->dev,  in goodix_check_cfg_16()
419 static int goodix_check_cfg(struct goodix_ts_data *ts,  in goodix_check_cfg()  argument
423 		dev_err(&ts->client->dev,  in goodix_check_cfg()
428 	return ts->chip->check_config(ts, cfg);  in goodix_check_cfg()
437 static int goodix_send_cfg(struct goodix_ts_data *ts,  in goodix_send_cfg()  argument
442 	error = goodix_check_cfg(ts, cfg);  in goodix_send_cfg()
446 	error = goodix_i2c_write(ts->client, ts->chip->config_addr, cfg->data,  in goodix_send_cfg()
449 		dev_err(&ts->client->dev, "Failed to write config data: %d",  in goodix_send_cfg()
453 	dev_dbg(&ts->client->dev, "Config sent successfully.");  in goodix_send_cfg()
461 static int goodix_int_sync(struct goodix_ts_data *ts)  in goodix_int_sync()  argument
465 	error = gpiod_direction_output(ts->gpiod_int, 0);  in goodix_int_sync()
471 	error = gpiod_direction_input(ts->gpiod_int);  in goodix_int_sync()
483 static int goodix_reset(struct goodix_ts_data *ts)  in goodix_reset()  argument
488 	error = gpiod_direction_output(ts->gpiod_rst, 0);  in goodix_reset()
495 	error = gpiod_direction_output(ts->gpiod_int, ts->client->addr == 0x14);  in goodix_reset()
501 	error = gpiod_direction_output(ts->gpiod_rst, 1);  in goodix_reset()
508 	error = gpiod_direction_input(ts->gpiod_rst);  in goodix_reset()
512 	error = goodix_int_sync(ts);  in goodix_reset()
524 static int goodix_get_gpio_config(struct goodix_ts_data *ts)  in goodix_get_gpio_config()  argument
530 	if (!ts->client)  in goodix_get_gpio_config()
532 	dev = &ts->client->dev;  in goodix_get_gpio_config()
544 	ts->gpiod_int = gpiod;  in goodix_get_gpio_config()
556 	ts->gpiod_rst = gpiod;  in goodix_get_gpio_config()
568 static void goodix_read_config(struct goodix_ts_data *ts)  in goodix_read_config()  argument
574 	error = goodix_i2c_read(ts->client, ts->chip->config_addr,  in goodix_read_config()
575 				config, ts->chip->config_len);  in goodix_read_config()
577 		dev_warn(&ts->client->dev, "Error reading config: %d\n",  in goodix_read_config()
579 		ts->int_trigger_type = GOODIX_INT_TRIGGER;  in goodix_read_config()
580 		ts->max_touch_num = GOODIX_MAX_CONTACTS;  in goodix_read_config()
584 	ts->int_trigger_type = config[TRIGGER_LOC] & 0x03;  in goodix_read_config()
585 	ts->max_touch_num = config[MAX_CONTACTS_LOC] & 0x0f;  in goodix_read_config()
590 		input_abs_set_max(ts->input_dev, ABS_MT_POSITION_X, x_max - 1);  in goodix_read_config()
591 		input_abs_set_max(ts->input_dev, ABS_MT_POSITION_Y, y_max - 1);  in goodix_read_config()
600 static int goodix_read_version(struct goodix_ts_data *ts)  in goodix_read_version()  argument
606 	error = goodix_i2c_read(ts->client, GOODIX_REG_ID, buf, sizeof(buf));  in goodix_read_version()
608 		dev_err(&ts->client->dev, "read version failed: %d\n", error);  in goodix_read_version()
614 	if (kstrtou16(id_str, 10, &ts->id))  in goodix_read_version()
615 		ts->id = 0x1001;  in goodix_read_version()
617 	ts->version = get_unaligned_le16(&buf[4]);  in goodix_read_version()
619 	dev_info(&ts->client->dev, "ID %d, version: %04x\n", ts->id,  in goodix_read_version()
620 		 ts->version);  in goodix_read_version()
660 static int goodix_configure_dev(struct goodix_ts_data *ts)  in goodix_configure_dev()  argument
664 	ts->int_trigger_type = GOODIX_INT_TRIGGER;  in goodix_configure_dev()
665 	ts->max_touch_num = GOODIX_MAX_CONTACTS;  in goodix_configure_dev()
667 	ts->input_dev = devm_input_allocate_device(&ts->client->dev);  in goodix_configure_dev()
668 	if (!ts->input_dev) {  in goodix_configure_dev()
669 		dev_err(&ts->client->dev, "Failed to allocate input device.");  in goodix_configure_dev()
673 	ts->input_dev->name = "Goodix Capacitive TouchScreen";  in goodix_configure_dev()
674 	ts->input_dev->phys = "input/ts";  in goodix_configure_dev()
675 	ts->input_dev->id.bustype = BUS_I2C;  in goodix_configure_dev()
676 	ts->input_dev->id.vendor = 0x0416;  in goodix_configure_dev()
677 	ts->input_dev->id.product = ts->id;  in goodix_configure_dev()
678 	ts->input_dev->id.version = ts->version;  in goodix_configure_dev()
681 	input_set_capability(ts->input_dev, EV_KEY, KEY_LEFTMETA);  in goodix_configure_dev()
683 	input_set_capability(ts->input_dev, EV_ABS, ABS_MT_POSITION_X);  in goodix_configure_dev()
684 	input_set_capability(ts->input_dev, EV_ABS, ABS_MT_POSITION_Y);  in goodix_configure_dev()
685 	input_set_abs_params(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0, 255, 0, 0);  in goodix_configure_dev()
686 	input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);  in goodix_configure_dev()
689 	goodix_read_config(ts);  in goodix_configure_dev()
692 	touchscreen_parse_properties(ts->input_dev, true, &ts->prop);  in goodix_configure_dev()
694 	if (!ts->prop.max_x || !ts->prop.max_y || !ts->max_touch_num) {  in goodix_configure_dev()
695 		dev_err(&ts->client->dev, "Invalid config, using defaults\n");  in goodix_configure_dev()
696 		ts->prop.max_x = GOODIX_MAX_WIDTH - 1;  in goodix_configure_dev()
697 		ts->prop.max_y = GOODIX_MAX_HEIGHT - 1;  in goodix_configure_dev()
698 		ts->max_touch_num = GOODIX_MAX_CONTACTS;  in goodix_configure_dev()
699 		input_abs_set_max(ts->input_dev,  in goodix_configure_dev()
700 				  ABS_MT_POSITION_X, ts->prop.max_x);  in goodix_configure_dev()
701 		input_abs_set_max(ts->input_dev,  in goodix_configure_dev()
702 				  ABS_MT_POSITION_Y, ts->prop.max_y);  in goodix_configure_dev()
706 		ts->prop.invert_x = true;  in goodix_configure_dev()
707 		ts->prop.invert_y = true;  in goodix_configure_dev()
708 		dev_dbg(&ts->client->dev,  in goodix_configure_dev()
712 	error = input_mt_init_slots(ts->input_dev, ts->max_touch_num,  in goodix_configure_dev()
715 		dev_err(&ts->client->dev,  in goodix_configure_dev()
720 	error = input_register_device(ts->input_dev);  in goodix_configure_dev()
722 		dev_err(&ts->client->dev,  in goodix_configure_dev()
727 	ts->irq_flags = goodix_irq_flags[ts->int_trigger_type] | IRQF_ONESHOT;  in goodix_configure_dev()
728 	error = goodix_request_irq(ts);  in goodix_configure_dev()
730 		dev_err(&ts->client->dev, "request IRQ failed: %d\n", error);  in goodix_configure_dev()
747 	struct goodix_ts_data *ts = ctx;  in goodix_config_cb()  local
752 		error = goodix_send_cfg(ts, cfg);  in goodix_config_cb()
757 	goodix_configure_dev(ts);  in goodix_config_cb()
761 	complete_all(&ts->firmware_loading_complete);  in goodix_config_cb()
767 	struct goodix_ts_data *ts;  in goodix_ts_probe()  local
777 	ts = devm_kzalloc(&client->dev, sizeof(*ts), GFP_KERNEL);  in goodix_ts_probe()
778 	if (!ts)  in goodix_ts_probe()
781 	ts->client = client;  in goodix_ts_probe()
782 	i2c_set_clientdata(client, ts);  in goodix_ts_probe()
783 	init_completion(&ts->firmware_loading_complete);  in goodix_ts_probe()
785 	error = goodix_get_gpio_config(ts);  in goodix_ts_probe()
789 	if (ts->gpiod_int && ts->gpiod_rst) {  in goodix_ts_probe()
791 		error = goodix_reset(ts);  in goodix_ts_probe()
804 	error = goodix_read_version(ts);  in goodix_ts_probe()
810 	ts->chip = goodix_get_chip_data(ts->id);  in goodix_ts_probe()
812 	if (ts->gpiod_int && ts->gpiod_rst) {  in goodix_ts_probe()
814 		ts->cfg_name = devm_kasprintf(&client->dev, GFP_KERNEL,  in goodix_ts_probe()
815 					      "goodix_%d_cfg.bin", ts->id);  in goodix_ts_probe()
816 		if (!ts->cfg_name)  in goodix_ts_probe()
819 		error = request_firmware_nowait(THIS_MODULE, true, ts->cfg_name,  in goodix_ts_probe()
820 						&client->dev, GFP_KERNEL, ts,  in goodix_ts_probe()
831 		error = goodix_configure_dev(ts);  in goodix_ts_probe()
841 	struct goodix_ts_data *ts = i2c_get_clientdata(client);  in goodix_ts_remove()  local
843 	if (ts->gpiod_int && ts->gpiod_rst)  in goodix_ts_remove()
844 		wait_for_completion(&ts->firmware_loading_complete);  in goodix_ts_remove()
852 	struct goodix_ts_data *ts = i2c_get_clientdata(client);  in goodix_suspend()  local
856 	if (!ts->gpiod_int || !ts->gpiod_rst) {  in goodix_suspend()
861 	wait_for_completion(&ts->firmware_loading_complete);  in goodix_suspend()
864 	goodix_free_irq(ts);  in goodix_suspend()
867 	error = gpiod_direction_output(ts->gpiod_int, 0);  in goodix_suspend()
869 		goodix_request_irq(ts);  in goodix_suspend()
875 	error = goodix_i2c_write_u8(ts->client, GOODIX_REG_COMMAND,  in goodix_suspend()
878 		dev_err(&ts->client->dev, "Screen off command failed\n");  in goodix_suspend()
879 		gpiod_direction_input(ts->gpiod_int);  in goodix_suspend()
880 		goodix_request_irq(ts);  in goodix_suspend()
896 	struct goodix_ts_data *ts = i2c_get_clientdata(client);  in goodix_resume()  local
899 	if (!ts->gpiod_int || !ts->gpiod_rst) {  in goodix_resume()
908 	error = gpiod_direction_output(ts->gpiod_int, 1);  in goodix_resume()
914 	error = goodix_int_sync(ts);  in goodix_resume()
918 	error = goodix_request_irq(ts);  in goodix_resume()