MISC_CLK_CNTL
orig = data = RREG32(MISC_CLK_CNTL);
WREG32(MISC_CLK_CNTL, data);
WREG32_P(MISC_CLK_CNTL, DEEP_SLEEP_CLK_SEL(tmp), ~DEEP_SLEEP_CLK_SEL_MASK);