mmCG_TACH_CTRL
tmp = RREG32(mmCG_TACH_CTRL) & ~CG_TACH_CTRL__TARGET_PERIOD_MASK;
WREG32(mmCG_TACH_CTRL, tmp);
tmp = RREG32(mmCG_TACH_CTRL) & ~CG_TACH_CTRL__EDGE_PER_REV_MASK;
WREG32(mmCG_TACH_CTRL, tmp);
WREG32_SOC15(THM, 0, mmCG_TACH_CTRL,
REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_TACH_CTRL),
WREG32_SOC15(THM, 0, mmCG_TACH_CTRL,
REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_TACH_CTRL),
WREG32_SOC15(THM, 0, mmCG_TACH_CTRL,
REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_TACH_CTRL),
WREG32_SOC15(THM, 0, mmCG_TACH_CTRL,
REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_TACH_CTRL),