69 	struct i2c_client *client;  member
81 static int qt2160_read(struct i2c_client *client, u8 reg);
82 static int qt2160_write(struct i2c_client *client, u8 reg, u8 data);
90 	struct i2c_client *client = qt2160->client;  in qt2160_led_work()  local
96 	drive = qt2160_read(client, QT2160_CMD_DRIVE_X);  in qt2160_led_work()
97 	pwmen = qt2160_read(client, QT2160_CMD_PWMEN_X);  in qt2160_led_work()
106 	qt2160_write(client, QT2160_CMD_DRIVE_X, drive);  in qt2160_led_work()
107 	qt2160_write(client, QT2160_CMD_PWMEN_X, pwmen);  in qt2160_led_work()
114 		qt2160_write(client, QT2160_CMD_PWM_DUTY, value);  in qt2160_led_work()
130 static int qt2160_read_block(struct i2c_client *client,  in qt2160_read_block()  argument
140 	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C))	{  in qt2160_read_block()
142 		error = i2c_smbus_write_byte(client, inireg + idx);  in qt2160_read_block()
144 			dev_err(&client->dev,  in qt2160_read_block()
149 		error = i2c_master_recv(client, buffer, count);  in qt2160_read_block()
151 			dev_err(&client->dev,  in qt2160_read_block()
160 			error = i2c_smbus_write_byte(client, inireg + idx);  in qt2160_read_block()
162 				dev_err(&client->dev,  in qt2160_read_block()
167 			data = i2c_smbus_read_byte(client);  in qt2160_read_block()
169 				dev_err(&client->dev,  in qt2160_read_block()
183 	struct i2c_client *client = qt2160->client;  in qt2160_get_key_matrix()  local
189 	dev_dbg(&client->dev, "requesting keys...\n");  in qt2160_get_key_matrix()
195 	ret = qt2160_read_block(client, QT2160_CMD_GSTAT, regs, 6);  in qt2160_get_key_matrix()
197 		dev_err(&client->dev,  in qt2160_get_key_matrix()
211 			dev_dbg(&client->dev, "key %d %s\n",  in qt2160_get_key_matrix()
247 	dev_dbg(&qt2160->client->dev, "worker\n");  in qt2160_worker()
255 static int qt2160_read(struct i2c_client *client, u8 reg)  in qt2160_read()  argument
259 	ret = i2c_smbus_write_byte(client, reg);  in qt2160_read()
261 		dev_err(&client->dev,  in qt2160_read()
266 	ret = i2c_smbus_read_byte(client);  in qt2160_read()
268 		dev_err(&client->dev,  in qt2160_read()
276 static int qt2160_write(struct i2c_client *client, u8 reg, u8 data)  in qt2160_write()  argument
280 	ret = i2c_smbus_write_byte_data(client, reg, data);  in qt2160_write()
282 		dev_err(&client->dev,  in qt2160_write()
292 	struct i2c_client *client = qt2160->client;  in qt2160_register_leds()  local
310 		ret = led_classdev_register(&client->dev, &led->cdev);  in qt2160_register_leds()
316 	qt2160_write(client, QT2160_CMD_DRIVE_X, 0);  in qt2160_register_leds()
317 	qt2160_write(client, QT2160_CMD_PWMEN_X, 0);  in qt2160_register_leds()
318 	qt2160_write(client, QT2160_CMD_PWM_DUTY, 0);  in qt2160_register_leds()
346 static bool qt2160_identify(struct i2c_client *client)  in qt2160_identify()  argument
351 	id = qt2160_read(client, QT2160_CMD_CHIPID);  in qt2160_identify()
353 		dev_err(&client->dev, "ID %d not supported\n", id);  in qt2160_identify()
358 	ver = qt2160_read(client, QT2160_CMD_CODEVER);  in qt2160_identify()
360 		dev_err(&client->dev, "could not get firmware version\n");  in qt2160_identify()
365 	rev = qt2160_read(client, QT2160_CMD_SUBVER);  in qt2160_identify()
367 		dev_err(&client->dev, "could not get firmware revision\n");  in qt2160_identify()
371 	dev_info(&client->dev, "AT42QT2160 firmware version %d.%d.%d\n",  in qt2160_identify()
377 static int qt2160_probe(struct i2c_client *client,  in qt2160_probe()  argument
386 	error = i2c_check_functionality(client->adapter,  in qt2160_probe()
389 		dev_err(&client->dev, "%s adapter not supported\n",  in qt2160_probe()
390 				dev_driver_string(&client->adapter->dev));  in qt2160_probe()
394 	if (!qt2160_identify(client))  in qt2160_probe()
401 		dev_err(&client->dev, "insufficient memory\n");  in qt2160_probe()
406 	qt2160->client = client;  in qt2160_probe()
427 	error = qt2160_write(client, QT2160_CMD_CALIBRATE, 1);  in qt2160_probe()
429 		dev_err(&client->dev, "failed to calibrate device\n");  in qt2160_probe()
433 	if (client->irq) {  in qt2160_probe()
434 		error = request_irq(client->irq, qt2160_irq,  in qt2160_probe()
437 			dev_err(&client->dev,  in qt2160_probe()
438 				"failed to allocate irq %d\n", client->irq);  in qt2160_probe()
445 		dev_err(&client->dev, "Failed to register leds\n");  in qt2160_probe()
451 		dev_err(&client->dev,  in qt2160_probe()
456 	i2c_set_clientdata(client, qt2160);  in qt2160_probe()
464 	if (client->irq)  in qt2160_probe()
465 		free_irq(client->irq, qt2160);  in qt2160_probe()
472 static int qt2160_remove(struct i2c_client *client)  in qt2160_remove()  argument
474 	struct qt2160_data *qt2160 = i2c_get_clientdata(client);  in qt2160_remove()
479 	if (client->irq)  in qt2160_remove()
480 		free_irq(client->irq, qt2160);  in qt2160_remove()