49 	struct i2c_client *client;  member
56 static int qt1070_read(struct i2c_client *client, u8 reg)  in qt1070_read()  argument
60 	ret = i2c_smbus_read_byte_data(client, reg);  in qt1070_read()
62 		dev_err(&client->dev,  in qt1070_read()
68 static int qt1070_write(struct i2c_client *client, u8 reg, u8 data)  in qt1070_write()  argument
72 	ret = i2c_smbus_write_byte_data(client, reg, data);  in qt1070_write()
74 		dev_err(&client->dev,  in qt1070_write()
80 static bool qt1070_identify(struct i2c_client *client)  in qt1070_identify()  argument
85 	id = qt1070_read(client, CHIP_ID);  in qt1070_identify()
87 		dev_err(&client->dev, "ID %d not supported\n", id);  in qt1070_identify()
92 	ver = qt1070_read(client, FW_VERSION);  in qt1070_identify()
94 		dev_err(&client->dev, "could not read the firmware version\n");  in qt1070_identify()
98 	dev_info(&client->dev, "AT42QT1070 firmware version %x\n", ver);  in qt1070_identify()
106 	struct i2c_client *client = data->client;  in qt1070_interrupt()  local
112 	qt1070_read(client, DET_STATUS);  in qt1070_interrupt()
115 	new_keys = qt1070_read(client, KEY_STATUS);  in qt1070_interrupt()
129 static int qt1070_probe(struct i2c_client *client,  in qt1070_probe()  argument
137 	err = i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE);  in qt1070_probe()
139 		dev_err(&client->dev, "%s adapter not supported\n",  in qt1070_probe()
140 			dev_driver_string(&client->adapter->dev));  in qt1070_probe()
144 	if (!client->irq) {  in qt1070_probe()
145 		dev_err(&client->dev, "please assign the irq to this device\n");  in qt1070_probe()
150 	if (!qt1070_identify(client))  in qt1070_probe()
156 		dev_err(&client->dev, "insufficient memory\n");  in qt1070_probe()
161 	data->client = client;  in qt1070_probe()
163 	data->irq = client->irq;  in qt1070_probe()
166 	input->dev.parent = &client->dev;  in qt1070_probe()
182 	qt1070_write(client, CALIBRATE_CMD, 1);  in qt1070_probe()
186 	qt1070_write(client, RESET, 1);  in qt1070_probe()
189 	err = request_threaded_irq(client->irq, NULL, qt1070_interrupt,  in qt1070_probe()
191 				   client->dev.driver->name, data);  in qt1070_probe()
193 		dev_err(&client->dev, "fail to request irq\n");  in qt1070_probe()
200 		dev_err(&client->dev, "Failed to register input device\n");  in qt1070_probe()
204 	i2c_set_clientdata(client, data);  in qt1070_probe()
207 	qt1070_read(client, DET_STATUS);  in qt1070_probe()
212 	free_irq(client->irq, data);  in qt1070_probe()
219 static int qt1070_remove(struct i2c_client *client)  in qt1070_remove()  argument
221 	struct qt1070_data *data = i2c_get_clientdata(client);  in qt1070_remove()
224 	free_irq(client->irq, data);  in qt1070_remove()
235 	struct i2c_client *client = to_i2c_client(dev);  in qt1070_suspend()  local
236 	struct qt1070_data *data = i2c_get_clientdata(client);  in qt1070_suspend()
246 	struct i2c_client *client = to_i2c_client(dev);  in qt1070_resume()  local
247 	struct qt1070_data *data = i2c_get_clientdata(client);  in qt1070_resume()