pwrdm_read_prev_mem_pwrst
prev_mem_pwrst = pwrdm_read_prev_mem_pwrst(pwrdm, i);
if (arch_pwrdm && arch_pwrdm->pwrdm_read_prev_mem_pwrst)
ret = arch_pwrdm->pwrdm_read_prev_mem_pwrst(pwrdm, bank);
int (*pwrdm_read_prev_mem_pwrst)(struct powerdomain *pwrdm, u8 bank);
int pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank);
.pwrdm_read_prev_mem_pwrst = omap3_pwrdm_read_prev_mem_pwrst,
.pwrdm_read_prev_mem_pwrst = omap4_pwrdm_read_prev_mem_pwrst,