11 static u64 rkcanfd_timestamp_read(const struct cyclecounter *cc)  in rkcanfd_timestamp_read()  argument
13 	const struct rkcanfd_priv *priv = container_of(cc, struct rkcanfd_priv, cc);  in rkcanfd_timestamp_read()
44 	struct cyclecounter *cc = &priv->cc;  in rkcanfd_timestamp_init()  local
65 	cc->read = rkcanfd_timestamp_read;  in rkcanfd_timestamp_init()
66 	cc->mask = CYCLECOUNTER_MASK(32);  in rkcanfd_timestamp_init()
69 	clocks_calc_mult_shift(&cc->mult, &cc->shift, rate, NSEC_PER_SEC,  in rkcanfd_timestamp_init()
72 	max_cycles = div_u64(ULLONG_MAX, cc->mult);  in rkcanfd_timestamp_init()
73 	max_cycles = min(max_cycles, cc->mask);  in rkcanfd_timestamp_init()
74 	work_delay_ns = clocksource_cyc2ns(max_cycles, cc->mult, cc->shift);  in rkcanfd_timestamp_init()
86 		   cc->mult, cc->shift,  in rkcanfd_timestamp_init()
92 	timecounter_init(&priv->tc, &priv->cc, ktime_get_real_ns());  in rkcanfd_timestamp_start()