Lines Matching +full:clock +full:- +full:accuracy

1 // SPDX-License-Identifier: GPL-2.0-only
58 		delta_us = timespec_to_us(&ts2) - timespec_to_us(&ts1);  in measure_clock()
59 	} while (delta_us > MEASURE_CLOCK_DELTA_THRESHOLD_US && --tries);  in measure_clock()
62 		dev_err(&GET_DEV(accel_dev), "Excessive clock measure delay\n");  in measure_clock()
63 		return -ETIMEDOUT;  in measure_clock()
74 			return -EIO;  in measure_clock()
77 		delta_us = timespec_to_us(&ts4) - timespec_to_us(&ts3);  in measure_clock()
78 	} while (delta_us > MEASURE_CLOCK_DELTA_THRESHOLD_US && --tries);  in measure_clock()
81 		dev_err(&GET_DEV(accel_dev), "Excessive clock measure delay\n");  in measure_clock()
82 		return -ETIMEDOUT;  in measure_clock()
85 	delta_us = timespec_to_us(&ts3) - timespec_to_us(&ts1);  in measure_clock()
87 		return -EINVAL;  in measure_clock()
89 	temp = (timestamp2 - timestamp1) * ME_CLK_DIVIDER * 10;  in measure_clock()
93 	 * and avoid promoting r-value to 64-bit before division.  in measure_clock()
101  * adf_dev_measure_clock() - measures device clock frequency
111  * timestamp. So we can't expect too high accuracy from this measurement.
114  * * 0 - measurement succeed
115  * * -ETIMEDOUT - measurement failed
131 			 "Measured clock %d Hz is out of range, assuming %d\n",  in adf_dev_measure_clock()