iio/accel/mma9551_core.c

108 static int mma9551_transfer(struct i2c_client *client,
120 		dev_err(&client->dev, "register offset too large\n");
137 	out.addr = client->addr;
142 	ret = i2c_transfer(client->adapter, &out, 1);
144 		dev_err(&client->dev, "i2c write failed\n");
152 		in.addr = client->addr;
157 		ret = i2c_transfer(client->adapter, &in, 1);
159 			dev_err(&client->dev, "i2c read failed\n");
168 		dev_err(&client->dev,
174 		dev_err(&client->dev,
182 		dev_err(&client->dev, "read returned error %x\n", err_code);
187 		dev_err(&client->dev,
201  * @client:	I2C client
216 int mma9551_read_config_byte(struct i2c_client *client, u8 app_id,
219 	return mma9551_transfer(client, app_id, MMA9551_CMD_READ_CONFIG,
226  * @client:	I2C client
241 int mma9551_write_config_byte(struct i2c_client *client, u8 app_id,
244 	return mma9551_transfer(client, app_id, MMA9551_CMD_WRITE_CONFIG, reg,
251  * @client:	I2C client
266 int mma9551_read_status_byte(struct i2c_client *client, u8 app_id,
269 	return mma9551_transfer(client, app_id, MMA9551_CMD_READ_STATUS,
276  * @client:	I2C client
291 int mma9551_read_config_word(struct i2c_client *client, u8 app_id,
297 	ret = mma9551_transfer(client, app_id, MMA9551_CMD_READ_CONFIG,
310  * @client:	I2C client
325 int mma9551_write_config_word(struct i2c_client *client, u8 app_id,
330 	return mma9551_transfer(client, app_id, MMA9551_CMD_WRITE_CONFIG, reg,
337  * @client:	I2C client
352 int mma9551_read_status_word(struct i2c_client *client, u8 app_id,
358 	ret = mma9551_transfer(client, app_id, MMA9551_CMD_READ_STATUS,
371  * @client:	I2C client
385 int mma9551_read_config_words(struct i2c_client *client, u8 app_id,
392 		dev_err(&client->dev, "Invalid buffer size %d\n", len);
396 	ret = mma9551_transfer(client, app_id, MMA9551_CMD_READ_CONFIG,
410  * @client:	I2C client
424 int mma9551_read_status_words(struct i2c_client *client, u8 app_id,
431 		dev_err(&client->dev, "Invalid buffer size %d\n", len);
435 	ret = mma9551_transfer(client, app_id, MMA9551_CMD_READ_STATUS,
449  * @client:	I2C client
463 int mma9551_write_config_words(struct i2c_client *client, u8 app_id,
470 		dev_err(&client->dev, "Invalid buffer size %d\n", len);
477 	return mma9551_transfer(client, app_id, MMA9551_CMD_WRITE_CONFIG,
484  * @client:	I2C client
498 int mma9551_update_config_bits(struct i2c_client *client, u8 app_id,
504 	ret = mma9551_read_config_byte(client, app_id, reg, &orig);
514 	return mma9551_write_config_byte(client, app_id, reg, tmp);
520  * @client:	I2C client
537 int mma9551_gpio_config(struct i2c_client *client, enum mma9551_gpio_pin pin,
544 		dev_err(&client->dev, "bad GPIO pin\n");
554 	ret = mma9551_write_config_byte(client, MMA9551_APPID_GPIO,
557 		dev_err(&client->dev, "error setting GPIO app_id\n");
561 	ret = mma9551_write_config_byte(client, MMA9551_APPID_GPIO,
564 		dev_err(&client->dev, "error setting GPIO bit number\n");
588 	ret = mma9551_update_config_bits(client, MMA9551_APPID_GPIO, reg,
591 		dev_err(&client->dev, "error setting GPIO polarity\n");
599  * @client:	I2C client
609 int mma9551_read_version(struct i2c_client *client)
614 	ret = mma9551_transfer(client, MMA9551_APPID_VERSION, 0x00, 0x00,
619 	dev_info(&client->dev, "device ID 0x%x, firmware version %02x.%02x\n",
629  * @client:	I2C client
644 int mma9551_set_device_state(struct i2c_client *client, bool enable)
646 	return mma9551_update_config_bits(client, MMA9551_APPID_SLEEP_WAKE,
659  * @client:	I2C client
667 int mma9551_set_power_state(struct i2c_client *client, bool on)
673 		ret = pm_runtime_resume_and_get(&client->dev);
675 		pm_runtime_mark_last_busy(&client->dev);
676 		ret = pm_runtime_put_autosuspend(&client->dev);
680 		dev_err(&client->dev,
712  * @client:	I2C client
725 int mma9551_read_accel_chan(struct i2c_client *client,
747 	ret = mma9551_set_power_state(client, true);
751 	ret = mma9551_read_status_word(client, MMA9551_APPID_AFE,
761 	mma9551_set_power_state(client, false);
786  * @client:	I2C client
794 int mma9551_app_reset(struct i2c_client *client, u32 app_mask)
796 	return mma9551_write_config_byte(client, MMA9551_APPID_RSC,