1 // SPDX-License-Identifier: GPL-2.0-or-later
29 	struct regulator *vio;  member
41 	enable_irq(ts->client->irq);  in zet6223_start()
50 	disable_irq(ts->client->irq);  in zet6223_stop()
62 	u8 bufsize = 3 + 4 * ts->fingernum;  in zet6223_irq()
68 	ret = i2c_master_recv(ts->client, buf, bufsize);  in zet6223_irq()
70 		error = ret < 0 ? ret : -EIO;  in zet6223_irq()
71 		dev_err_ratelimited(&ts->client->dev,  in zet6223_irq()
80 	for (i = 0; i < ts->fingernum; i++) {  in zet6223_irq()
81 		if (!(finger_bits & BIT(15 - i)))  in zet6223_irq()
84 		input_mt_slot(ts->input, i);  in zet6223_irq()
85 		input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, true);  in zet6223_irq()
86 		input_event(ts->input, EV_ABS, ABS_MT_POSITION_X,  in zet6223_irq()
88 		input_event(ts->input, EV_ABS, ABS_MT_POSITION_Y,  in zet6223_irq()
92 	input_mt_sync_frame(ts->input);  in zet6223_irq()
93 	input_sync(ts->input);  in zet6223_irq()
102 	regulator_bulk_disable(ARRAY_SIZE(ts->supplies), ts->supplies);  in zet6223_power_off()
107 	struct device *dev = &ts->client->dev;  in zet6223_power_on()
110 	ts->supplies[0].supply = "vio";  in zet6223_power_on()
111 	ts->supplies[1].supply = "vcc";  in zet6223_power_on()
113 	error = devm_regulator_bulk_get(dev, ARRAY_SIZE(ts->supplies),  in zet6223_power_on()
114 					ts->supplies);  in zet6223_power_on()
118 	error = regulator_bulk_enable(ARRAY_SIZE(ts->supplies), ts->supplies);  in zet6223_power_on()
140 	ret = i2c_master_send(ts->client, &cmd, sizeof(cmd));  in zet6223_query_device()
142 		error = ret < 0 ? ret : -EIO;  in zet6223_query_device()
143 		dev_err(&ts->client->dev,  in zet6223_query_device()
148 	ret = i2c_master_recv(ts->client, buf, sizeof(buf));  in zet6223_query_device()
150 		error = ret < 0 ? ret : -EIO;  in zet6223_query_device()
151 		dev_err(&ts->client->dev,  in zet6223_query_device()
156 	ts->fingernum = buf[15] & 0x7F;  in zet6223_query_device()
157 	if (ts->fingernum > ZET6223_MAX_FINGERS) {  in zet6223_query_device()
158 		dev_warn(&ts->client->dev,  in zet6223_query_device()
160 			 ts->fingernum, ZET6223_MAX_FINGERS);  in zet6223_query_device()
161 		ts->fingernum = ZET6223_MAX_FINGERS;  in zet6223_query_device()
164 	ts->max_x = get_unaligned_le16(&buf[8]);  in zet6223_query_device()
165 	ts->max_y = get_unaligned_le16(&buf[10]);  in zet6223_query_device()
173 	struct device *dev = &client->dev;  in zet6223_probe()
178 	if (!client->irq) {  in zet6223_probe()
180 		return -EINVAL;  in zet6223_probe()
185 		return -ENOMEM;  in zet6223_probe()
187 	ts->client = client;  in zet6223_probe()
197 	ts->input = input = devm_input_allocate_device(dev);  in zet6223_probe()
199 		return -ENOMEM;  in zet6223_probe()
203 	input->name = client->name;  in zet6223_probe()
204 	input->id.bustype = BUS_I2C;  in zet6223_probe()
205 	input->open = zet6223_start;  in zet6223_probe()
206 	input->close = zet6223_stop;  in zet6223_probe()
208 	input_set_abs_params(input, ABS_MT_POSITION_X, 0, ts->max_x, 0, 0);  in zet6223_probe()
209 	input_set_abs_params(input, ABS_MT_POSITION_Y, 0, ts->max_y, 0, 0);  in zet6223_probe()
211 	touchscreen_parse_properties(input, true, &ts->prop);  in zet6223_probe()
213 	error = input_mt_init_slots(input, ts->fingernum,  in zet6223_probe()
218 	error = devm_request_threaded_irq(dev, client->irq, NULL, zet6223_irq,  in zet6223_probe()
219 					  IRQF_ONESHOT, client->name, ts);  in zet6223_probe()
222 			client->irq, error);  in zet6223_probe()