-static int r8a7779_sysc_pwr_off(struct r8a7779_pm_ch *r8a7779_ch)
-{
- return r8a7779_sysc_pwr_on_off(r8a7779_ch, 0, PWROFFCR_OFFS);
-}
-
-static int r8a7779_sysc_pwr_on(struct r8a7779_pm_ch *r8a7779_ch)
-{
- return r8a7779_sysc_pwr_on_off(r8a7779_ch, 1, PWRONCR_OFFS);
-}
-
-static int r8a7779_sysc_update(struct r8a7779_pm_ch *r8a7779_ch,
- int (*on_off_fn)(struct r8a7779_pm_ch *))
-{
- unsigned int isr_mask = 1 << r8a7779_ch->isr_bit;
- unsigned int chan_mask = 1 << r8a7779_ch->chan_bit;
- unsigned int status;
- unsigned long flags;
- int ret = 0;
- int k;
-
- spin_lock_irqsave(&r8a7779_sysc_lock, flags);
-
- iowrite32(isr_mask, r8a7779_sysc_base + SYSCISCR);
-
- do {
- ret = on_off_fn(r8a7779_ch);
- if (ret)
- goto out;
-
- status = ioread32(r8a7779_sysc_base +
- r8a7779_ch->chan_offs + PWRER_OFFS);
- } while (status & chan_mask);
-
- for (k = 0; k < SYSCISR_RETRIES; k++) {
- if (ioread32(r8a7779_sysc_base + SYSCISR) & isr_mask)
- break;
- udelay(SYSCISR_DELAY_US);
- }
-
- if (k == SYSCISR_RETRIES)
- ret = -EIO;
-
- iowrite32(isr_mask, r8a7779_sysc_base + SYSCISCR);
-
- out:
- spin_unlock_irqrestore(&r8a7779_sysc_lock, flags);
-
- pr_debug("r8a7779 power domain %d: %02x %02x %02x %02x %02x -> %d\n",
- r8a7779_ch->isr_bit, ioread32(r8a7779_sysc_base + PWRSR0),
- ioread32(r8a7779_sysc_base + PWRSR1),
- ioread32(r8a7779_sysc_base + PWRSR2),
- ioread32(r8a7779_sysc_base + PWRSR3),
- ioread32(r8a7779_sysc_base + PWRSR4), ret);
- return ret;
-}