88 	struct tm2_touchkey_data *touchkey =  in tm2_touchkey_led_brightness_set()  local
95 		data = touchkey->variant->cmd_led_off;  in tm2_touchkey_led_brightness_set()
98 		data = touchkey->variant->cmd_led_on;  in tm2_touchkey_led_brightness_set()
101 	if (!touchkey->variant->fixed_regulator)  in tm2_touchkey_led_brightness_set()
102 		regulator_set_voltage(touchkey->vdd, volt, volt);  in tm2_touchkey_led_brightness_set()
104 	return touchkey->variant->no_reg ?  in tm2_touchkey_led_brightness_set()
105 		i2c_smbus_write_byte(touchkey->client, data) :  in tm2_touchkey_led_brightness_set()
106 		i2c_smbus_write_byte_data(touchkey->client,  in tm2_touchkey_led_brightness_set()
107 					  touchkey->variant->base_reg, data);  in tm2_touchkey_led_brightness_set()
110 static int tm2_touchkey_power_enable(struct tm2_touchkey_data *touchkey)  in tm2_touchkey_power_enable()  argument
114 	error = regulator_bulk_enable(ARRAY_SIZE(touchkey->regulators),  in tm2_touchkey_power_enable()
115 				      touchkey->regulators);  in tm2_touchkey_power_enable()
127 	struct tm2_touchkey_data *touchkey = data;  in tm2_touchkey_power_disable()  local
129 	regulator_bulk_disable(ARRAY_SIZE(touchkey->regulators),  in tm2_touchkey_power_disable()
130 			       touchkey->regulators);  in tm2_touchkey_power_disable()
135 	struct tm2_touchkey_data *touchkey = devid;  in tm2_touchkey_irq_handler()  local
140 	if (touchkey->variant->no_reg)  in tm2_touchkey_irq_handler()
141 		data = i2c_smbus_read_byte(touchkey->client);  in tm2_touchkey_irq_handler()
143 		data = i2c_smbus_read_byte_data(touchkey->client,  in tm2_touchkey_irq_handler()
144 						touchkey->variant->keycode_reg);  in tm2_touchkey_irq_handler()
146 		dev_err(&touchkey->client->dev,  in tm2_touchkey_irq_handler()
152 	if (index < 0 || index >= touchkey->num_keycodes) {  in tm2_touchkey_irq_handler()
153 		dev_warn(&touchkey->client->dev,  in tm2_touchkey_irq_handler()
158 	input_event(touchkey->input_dev, EV_MSC, MSC_SCAN, index);  in tm2_touchkey_irq_handler()
161 		for (i = 0; i < touchkey->num_keycodes; i++)  in tm2_touchkey_irq_handler()
162 			input_report_key(touchkey->input_dev,  in tm2_touchkey_irq_handler()
163 					 touchkey->keycodes[i], 0);  in tm2_touchkey_irq_handler()
165 		input_report_key(touchkey->input_dev,  in tm2_touchkey_irq_handler()
166 				 touchkey->keycodes[index], 1);  in tm2_touchkey_irq_handler()
169 	input_sync(touchkey->input_dev);  in tm2_touchkey_irq_handler()
172 	if (touchkey->variant->fixed_regulator &&  in tm2_touchkey_irq_handler()
175 		if (touchkey->led_dev.brightness == LED_OFF)  in tm2_touchkey_irq_handler()
176 			tm2_touchkey_led_brightness_set(&touchkey->led_dev,  in tm2_touchkey_irq_handler()
186 	struct tm2_touchkey_data *touchkey;  in tm2_touchkey_probe()  local
196 	touchkey = devm_kzalloc(&client->dev, sizeof(*touchkey), GFP_KERNEL);  in tm2_touchkey_probe()
197 	if (!touchkey)  in tm2_touchkey_probe()
200 	touchkey->client = client;  in tm2_touchkey_probe()
201 	i2c_set_clientdata(client, touchkey);  in tm2_touchkey_probe()
203 	touchkey->variant = of_device_get_match_data(&client->dev);  in tm2_touchkey_probe()
205 	touchkey->regulators[0].supply = "vcc";  in tm2_touchkey_probe()
206 	touchkey->regulators[1].supply = "vdd";  in tm2_touchkey_probe()
207 	touchkey->regulators[2].supply = "vddio";  in tm2_touchkey_probe()
209 					ARRAY_SIZE(touchkey->regulators),  in tm2_touchkey_probe()
210 					touchkey->regulators);  in tm2_touchkey_probe()
217 	touchkey->vdd = touchkey->regulators[1].consumer;  in tm2_touchkey_probe()
219 	touchkey->num_keycodes = of_property_read_variable_u32_array(np,  in tm2_touchkey_probe()
220 					"linux,keycodes", touchkey->keycodes, 0,  in tm2_touchkey_probe()
221 					ARRAY_SIZE(touchkey->keycodes));  in tm2_touchkey_probe()
222 	if (touchkey->num_keycodes <= 0) {  in tm2_touchkey_probe()
224 		touchkey->keycodes[0] = KEY_PHONE;  in tm2_touchkey_probe()
225 		touchkey->keycodes[1] = KEY_BACK;  in tm2_touchkey_probe()
226 		touchkey->num_keycodes = 2;  in tm2_touchkey_probe()
229 	error = tm2_touchkey_power_enable(touchkey);  in tm2_touchkey_probe()
236 					 tm2_touchkey_power_disable, touchkey);  in tm2_touchkey_probe()
244 	touchkey->input_dev = devm_input_allocate_device(&client->dev);  in tm2_touchkey_probe()
245 	if (!touchkey->input_dev) {  in tm2_touchkey_probe()
250 	touchkey->input_dev->name = TM2_TOUCHKEY_DEV_NAME;  in tm2_touchkey_probe()
251 	touchkey->input_dev->id.bustype = BUS_I2C;  in tm2_touchkey_probe()
253 	touchkey->input_dev->keycode = touchkey->keycodes;  in tm2_touchkey_probe()
254 	touchkey->input_dev->keycodemax = touchkey->num_keycodes;  in tm2_touchkey_probe()
255 	touchkey->input_dev->keycodesize = sizeof(touchkey->keycodes[0]);  in tm2_touchkey_probe()
257 	input_set_capability(touchkey->input_dev, EV_MSC, MSC_SCAN);  in tm2_touchkey_probe()
258 	for (i = 0; i < touchkey->num_keycodes; i++)  in tm2_touchkey_probe()
259 		input_set_capability(touchkey->input_dev, EV_KEY,  in tm2_touchkey_probe()
260 				     touchkey->keycodes[i]);  in tm2_touchkey_probe()
262 	error = input_register_device(touchkey->input_dev);  in tm2_touchkey_probe()
272 					  TM2_TOUCHKEY_DEV_NAME, touchkey);  in tm2_touchkey_probe()
280 	touchkey->led_dev.name = TM2_TOUCHKEY_DEV_NAME;  in tm2_touchkey_probe()
281 	touchkey->led_dev.brightness = LED_ON;  in tm2_touchkey_probe()
282 	touchkey->led_dev.max_brightness = LED_ON;  in tm2_touchkey_probe()
283 	touchkey->led_dev.brightness_set_blocking =  in tm2_touchkey_probe()
286 	error = devm_led_classdev_register(&client->dev, &touchkey->led_dev);  in tm2_touchkey_probe()
293 	if (touchkey->variant->fixed_regulator)  in tm2_touchkey_probe()
294 		tm2_touchkey_led_brightness_set(&touchkey->led_dev, LED_ON);  in tm2_touchkey_probe()
302 	struct tm2_touchkey_data *touchkey = i2c_get_clientdata(client);  in tm2_touchkey_suspend()  local
305 	tm2_touchkey_power_disable(touchkey);  in tm2_touchkey_suspend()
313 	struct tm2_touchkey_data *touchkey = i2c_get_clientdata(client);  in tm2_touchkey_resume()  local
318 	ret = tm2_touchkey_power_enable(touchkey);  in tm2_touchkey_resume()