BACKBIAS_VALUE
if (tmp & BACKBIAS_VALUE)
~(BACKBIAS_VALUE | BACKBIAS_PAD_EN | BACKBIAS_DPM_CNTL));
WREG32_P(GENERAL_PWRMGT, BACKBIAS_VALUE, ~BACKBIAS_VALUE);
WREG32_P(GENERAL_PWRMGT, 0, ~BACKBIAS_VALUE);
WREG32_P(GENERAL_PWRMGT, 0, ~(BACKBIAS_VALUE | BACKBIAS_PAD_EN));