/* Read-modify-write a register in PRM. Caller must lock */
u32 am33xx_prm_rmw_reg_bits(u32 mask, u32 bits, s16 inst, s16 idx)
{
u32 v;
v = am33xx_prm_read_reg(inst, idx);
v &= ~mask;
v |= bits;
am33xx_prm_write_reg(v, inst, idx);
return v;
}
static void am33xx_pwrdm_restore_context(struct powerdomain *pwrdm)
{
int st, ctrl;
st = am33xx_prm_read_reg(pwrdm->prcm_offs,
pwrdm->pwrstst_offs);
am33xx_prm_write_reg(pwrdm->context, pwrdm->prcm_offs,
pwrdm->pwrstctrl_offs);
/* Make sure we only wait for a transition if there is one */
st &= OMAP_POWERSTATEST_MASK;
ctrl = OMAP_POWERSTATEST_MASK & pwrdm->context;
if (st != ctrl)
am33xx_pwrdm_wait_transition(pwrdm);
}
static void am33xx_pwrdm_restore_context(struct powerdomain *pwrdm)
{
am33xx_prm_write_reg(pwrdm->context, pwrdm->prcm_offs,
pwrdm->pwrstctrl_offs);
am33xx_pwrdm_wait_transition(pwrdm);
}
