TPG110_CTRL2_PM
val = tpg110_read_reg(tpg, TPG110_CTRL2_PM);
val &= ~TPG110_CTRL2_PM;
tpg110_write_reg(tpg, TPG110_CTRL2_PM, val);
val = tpg110_read_reg(tpg, TPG110_CTRL2_PM);
val |= TPG110_CTRL2_PM;
tpg110_write_reg(tpg, TPG110_CTRL2_PM, val);