tc_pllupdate
ret = tc_pllupdate(tc, DP0_PLLCTRL);
ret = tc_pllupdate(tc, DP1_PLLCTRL);
ret = tc_pllupdate(tc, DP0_PLLCTRL);
ret = tc_pllupdate(tc, DP1_PLLCTRL);
return tc_pllupdate(tc, PXL_PLLCTRL);
ret = tc_pllupdate(tc, DP0_PLLCTRL);
ret = tc_pllupdate(tc, DP1_PLLCTRL);