55 	struct i2c_client *client;  member
65 static int qt2160_read(struct i2c_client *client, u8 reg);
66 static int qt2160_write(struct i2c_client *client, u8 reg, u8 data);
75 	struct i2c_client *client = qt2160->client;  in qt2160_led_set()  local
79 		drive = qt2160_read(client, QT2160_CMD_DRIVE_X);  in qt2160_led_set()
80 		pwmen = qt2160_read(client, QT2160_CMD_PWMEN_X);  in qt2160_led_set()
89 		qt2160_write(client, QT2160_CMD_DRIVE_X, drive);  in qt2160_led_set()
90 		qt2160_write(client, QT2160_CMD_PWMEN_X, pwmen);  in qt2160_led_set()
97 			qt2160_write(client, QT2160_CMD_PWM_DUTY, value);  in qt2160_led_set()
107 static int qt2160_read_block(struct i2c_client *client,  in qt2160_read_block()  argument
117 	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C))	{  in qt2160_read_block()
119 		error = i2c_smbus_write_byte(client, inireg + idx);  in qt2160_read_block()
121 			dev_err(&client->dev,  in qt2160_read_block()
126 		error = i2c_master_recv(client, buffer, count);  in qt2160_read_block()
128 			dev_err(&client->dev,  in qt2160_read_block()
137 			error = i2c_smbus_write_byte(client, inireg + idx);  in qt2160_read_block()
139 				dev_err(&client->dev,  in qt2160_read_block()
144 			data = i2c_smbus_read_byte(client);  in qt2160_read_block()
146 				dev_err(&client->dev,  in qt2160_read_block()
160 	struct i2c_client *client = qt2160->client;  in qt2160_get_key_matrix()  local
166 	dev_dbg(&client->dev, "requesting keys...\n");  in qt2160_get_key_matrix()
172 	ret = qt2160_read_block(client, QT2160_CMD_GSTAT, regs, 6);  in qt2160_get_key_matrix()
174 		dev_err(&client->dev,  in qt2160_get_key_matrix()
188 			dev_dbg(&client->dev, "key %d %s\n",  in qt2160_get_key_matrix()
217 	dev_dbg(&qt2160->client->dev, "worker\n");  in qt2160_worker()
225 static int qt2160_read(struct i2c_client *client, u8 reg)  in qt2160_read()  argument
229 	ret = i2c_smbus_write_byte(client, reg);  in qt2160_read()
231 		dev_err(&client->dev,  in qt2160_read()
236 	ret = i2c_smbus_read_byte(client);  in qt2160_read()
238 		dev_err(&client->dev,  in qt2160_read()
246 static int qt2160_write(struct i2c_client *client, u8 reg, u8 data)  in qt2160_write()  argument
250 	ret = i2c_smbus_write_byte_data(client, reg, data);  in qt2160_write()
252 		dev_err(&client->dev,  in qt2160_write()
262 	struct i2c_client *client = qt2160->client;  in qt2160_register_leds()  local
276 		ret = led_classdev_register(&client->dev, &led->cdev);  in qt2160_register_leds()
282 	qt2160_write(client, QT2160_CMD_DRIVE_X, 0);  in qt2160_register_leds()
283 	qt2160_write(client, QT2160_CMD_PWMEN_X, 0);  in qt2160_register_leds()
284 	qt2160_write(client, QT2160_CMD_PWM_DUTY, 0);  in qt2160_register_leds()
310 static bool qt2160_identify(struct i2c_client *client)  in qt2160_identify()  argument
315 	id = qt2160_read(client, QT2160_CMD_CHIPID);  in qt2160_identify()
317 		dev_err(&client->dev, "ID %d not supported\n", id);  in qt2160_identify()
322 	ver = qt2160_read(client, QT2160_CMD_CODEVER);  in qt2160_identify()
324 		dev_err(&client->dev, "could not get firmware version\n");  in qt2160_identify()
329 	rev = qt2160_read(client, QT2160_CMD_SUBVER);  in qt2160_identify()
331 		dev_err(&client->dev, "could not get firmware revision\n");  in qt2160_identify()
335 	dev_info(&client->dev, "AT42QT2160 firmware version %d.%d.%d\n",  in qt2160_identify()
341 static int qt2160_probe(struct i2c_client *client,  in qt2160_probe()  argument
350 	error = i2c_check_functionality(client->adapter,  in qt2160_probe()
353 		dev_err(&client->dev, "%s adapter not supported\n",  in qt2160_probe()
354 				dev_driver_string(&client->adapter->dev));  in qt2160_probe()
358 	if (!qt2160_identify(client))  in qt2160_probe()
365 		dev_err(&client->dev, "insufficient memory\n");  in qt2160_probe()
370 	qt2160->client = client;  in qt2160_probe()
390 	error = qt2160_write(client, QT2160_CMD_CALIBRATE, 1);  in qt2160_probe()
392 		dev_err(&client->dev, "failed to calibrate device\n");  in qt2160_probe()
396 	if (client->irq) {  in qt2160_probe()
397 		error = request_irq(client->irq, qt2160_irq,  in qt2160_probe()
400 			dev_err(&client->dev,  in qt2160_probe()
401 				"failed to allocate irq %d\n", client->irq);  in qt2160_probe()
408 		dev_err(&client->dev, "Failed to register leds\n");  in qt2160_probe()
414 		dev_err(&client->dev,  in qt2160_probe()
419 	i2c_set_clientdata(client, qt2160);  in qt2160_probe()
427 	if (client->irq)  in qt2160_probe()
428 		free_irq(client->irq, qt2160);  in qt2160_probe()
435 static int qt2160_remove(struct i2c_client *client)  in qt2160_remove()  argument
437 	struct qt2160_data *qt2160 = i2c_get_clientdata(client);  in qt2160_remove()
442 	if (client->irq)  in qt2160_remove()
443 		free_irq(client->irq, qt2160);  in qt2160_remove()