rate_to_atmf
he_writel_mbox(he_dev, rate_to_atmf(period/2),
he_writel_tsr1(he_dev, TSR1_MCR(rate_to_atmf(0)) |
TSR1_PCR(rate_to_atmf(pcr_goal)), cid);
he_writel_tsr2(he_dev, TSR2_ACR(rate_to_atmf(pcr_goal)), cid);
TSR1_MCR(rate_to_atmf(200000))