clkdm_read_sleepdep
if (!arch_clkdm || !arch_clkdm->clkdm_read_sleepdep)
return arch_clkdm->clkdm_read_sleepdep(clkdm1, clkdm2);
int (*clkdm_read_sleepdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
int clkdm_read_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
.clkdm_read_sleepdep = omap3xxx_clkdm_read_sleepdep,
.clkdm_read_sleepdep = omap4_clkdm_read_wkup_sleep_dep,