27 static void inv_clear_kfifo(struct inv_mpu6050_state *st)  in inv_clear_kfifo()  argument
32 	spin_lock_irqsave(&st->time_stamp_lock, flags);  in inv_clear_kfifo()
33 	kfifo_reset(&st->timestamps);  in inv_clear_kfifo()
34 	spin_unlock_irqrestore(&st->time_stamp_lock, flags);  in inv_clear_kfifo()
41 	struct inv_mpu6050_state  *st = iio_priv(indio_dev);  in inv_reset_fifo()  local
44 	result = inv_mpu6050_write_reg(st, st->reg->int_enable, 0);  in inv_reset_fifo()
46 		dev_err(&st->client->dev, "int_enable failed %d\n", result);  in inv_reset_fifo()
50 	result = inv_mpu6050_write_reg(st, st->reg->fifo_en, 0);  in inv_reset_fifo()
54 	result = inv_mpu6050_write_reg(st, st->reg->user_ctrl, 0);  in inv_reset_fifo()
59 	result = inv_mpu6050_write_reg(st, st->reg->user_ctrl,  in inv_reset_fifo()
65 	inv_clear_kfifo(st);  in inv_reset_fifo()
68 	if (st->chip_config.accl_fifo_enable ||  in inv_reset_fifo()
69 	    st->chip_config.gyro_fifo_enable) {  in inv_reset_fifo()
70 		result = inv_mpu6050_write_reg(st, st->reg->int_enable,  in inv_reset_fifo()
76 	result = inv_mpu6050_write_reg(st, st->reg->user_ctrl,  in inv_reset_fifo()
82 	if (st->chip_config.gyro_fifo_enable)  in inv_reset_fifo()
84 	if (st->chip_config.accl_fifo_enable)  in inv_reset_fifo()
86 	result = inv_mpu6050_write_reg(st, st->reg->fifo_en, d);  in inv_reset_fifo()
93 	dev_err(&st->client->dev, "reset fifo failed %d\n", result);  in inv_reset_fifo()
94 	result = inv_mpu6050_write_reg(st, st->reg->int_enable,  in inv_reset_fifo()
107 	struct inv_mpu6050_state *st = iio_priv(indio_dev);  in inv_mpu6050_irq_handler()  local
111 	kfifo_in_spinlocked(&st->timestamps, &timestamp, 1,  in inv_mpu6050_irq_handler()
112 				&st->time_stamp_lock);  in inv_mpu6050_irq_handler()
124 	struct inv_mpu6050_state *st = iio_priv(indio_dev);  in inv_mpu6050_read_fifo()  local
132 	if (!(st->chip_config.accl_fifo_enable |  in inv_mpu6050_read_fifo()
133 		st->chip_config.gyro_fifo_enable))  in inv_mpu6050_read_fifo()
136 	if (st->chip_config.accl_fifo_enable)  in inv_mpu6050_read_fifo()
139 	if (st->chip_config.gyro_fifo_enable)  in inv_mpu6050_read_fifo()
146 	result = i2c_smbus_read_i2c_block_data(st->client,  in inv_mpu6050_read_fifo()
147 				       st->reg->fifo_count_h,  in inv_mpu6050_read_fifo()
160 	if (kfifo_len(&st->timestamps) >  in inv_mpu6050_read_fifo()
164 		result = i2c_smbus_read_i2c_block_data(st->client,  in inv_mpu6050_read_fifo()
165 						       st->reg->fifo_r_w,  in inv_mpu6050_read_fifo()
170 		result = kfifo_out(&st->timestamps, &timestamp, 1);  in inv_mpu6050_read_fifo()