DC_HPD4_INT_CONTROL
tmp = RREG32(DC_HPD4_INT_CONTROL) & DC_HPDx_INT_POLARITY;
WREG32(DC_HPD4_INT_CONTROL, tmp);
hpd4 = RREG32(DC_HPD4_INT_CONTROL) & ~(DC_HPDx_INT_EN | DC_HPDx_RX_INT_EN);
WREG32(DC_HPD4_INT_CONTROL, hpd4);
tmp = RREG32(DC_HPD4_INT_CONTROL);
WREG32(DC_HPD4_INT_CONTROL, tmp);
tmp = RREG32(DC_HPD4_INT_CONTROL);
WREG32(DC_HPD4_INT_CONTROL, tmp);
tmp = RREG32(DC_HPD4_INT_CONTROL) & DC_HPDx_INT_POLARITY;
WREG32(DC_HPD4_INT_CONTROL, tmp);
hpd4 = RREG32(DC_HPD4_INT_CONTROL) & ~DC_HPDx_INT_EN;
WREG32(DC_HPD4_INT_CONTROL, hpd4);
tmp = RREG32(DC_HPD4_INT_CONTROL);
WREG32(DC_HPD4_INT_CONTROL, tmp);
tmp = RREG32(DC_HPD4_INT_CONTROL);
WREG32(DC_HPD4_INT_CONTROL, tmp);