EUD_REG_SW_ATTACH_DET
reg = readl(chip->base + EUD_REG_SW_ATTACH_DET);
writel(0, chip->base + EUD_REG_SW_ATTACH_DET);
ret = readl_poll_timeout(chip->base + EUD_REG_SW_ATTACH_DET,
writel(EUD_INT_PET_EUD, chip->base + EUD_REG_SW_ATTACH_DET);