xilinx_timer_tlr_cycles
tlr0 = xilinx_timer_tlr_cycles(priv, tcsr0, period_cycles);
tlr1 = xilinx_timer_tlr_cycles(priv, tcsr1, duty_cycles);
u32 xilinx_timer_tlr_cycles(struct xilinx_timer_priv *priv, u32 tcsr,