MDREFR
return MDREFR;
sleep_save[SLEEP_SAVE_MDREFR] = __raw_readl(MDREFR);
__raw_writel(sleep_save[SLEEP_SAVE_MDREFR], MDREFR);
writel_relaxed(MDREFR_SLFRSH, MDREFR);
sd->mdrefr = MDREFR & 0xffbffff0;
MDREFR = (MDREFR & 0xffff000f) | (dri << 4);
(void) MDREFR;