diff options
Diffstat (limited to 'drivers/bus/ti-sysc.c')
| -rw-r--r-- | drivers/bus/ti-sysc.c | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index 44aeceaccfa4..70339f73181e 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -1023,6 +1023,11 @@ static int sysc_enable_module(struct device *dev) if (ddata->cfg.quirks & (SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_SWSUP_SIDLE_ACT)) { best_mode = SYSC_IDLE_NO; + + /* Clear WAKEUP */ + if (regbits->enwkup_shift >= 0 && + ddata->cfg.sysc_val & BIT(regbits->enwkup_shift)) + reg &= ~BIT(regbits->enwkup_shift); } else { best_mode = fls(ddata->cfg.sidlemodes) - 1; if (best_mode > SYSC_IDLE_MASK) { @@ -1143,6 +1148,13 @@ set_sidle: } } + if (ddata->cfg.quirks & SYSC_QUIRK_SWSUP_SIDLE_ACT) { + /* Set WAKEUP */ + if (regbits->enwkup_shift >= 0 && + ddata->cfg.sysc_val & BIT(regbits->enwkup_shift)) + reg |= BIT(regbits->enwkup_shift); + } + reg &= ~(SYSC_IDLE_MASK << regbits->sidle_shift); reg |= best_mode << regbits->sidle_shift; if (regbits->autoidle_shift >= 0 && @@ -1371,14 +1383,16 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { SYSC_QUIRK("timer", 0, 0, 0x10, -ENODEV, 0x4fff1301, 0xffff00ff, 0), SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x00000046, 0xffffffff, - SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE), + SYSC_QUIRK_SWSUP_SIDLE_ACT | SYSC_QUIRK_LEGACY_IDLE), SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x00000052, 0xffffffff, - SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE), + SYSC_QUIRK_SWSUP_SIDLE_ACT | SYSC_QUIRK_LEGACY_IDLE), /* Uarts on omap4 and later */ SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x50411e03, 0xffff00ff, - SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE), + SYSC_QUIRK_SWSUP_SIDLE_ACT | SYSC_QUIRK_LEGACY_IDLE), SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x47422e03, 0xffffffff, - SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE), + SYSC_QUIRK_SWSUP_SIDLE_ACT | SYSC_QUIRK_LEGACY_IDLE), + SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x47424e03, 0xffffffff, + SYSC_QUIRK_SWSUP_SIDLE_ACT | SYSC_QUIRK_LEGACY_IDLE), /* Quirks that need to be set based on the module address */ SYSC_QUIRK("mcpdm", 0x40132000, 0, 0x10, -ENODEV, 0x50000800, 0xffffffff, @@ -1809,7 +1823,7 @@ static int sysc_reset(struct sysc *ddata) sysc_offset = ddata->offsets[SYSC_SYSCONFIG]; - if (ddata->legacy_mode || sysc_offset < 0 || + if (ddata->legacy_mode || ddata->cap->regbits->srst_shift < 0 || ddata->cfg.quirks & SYSC_QUIRK_NO_RESET_ON_INIT) return 0; @@ -1819,9 +1833,13 @@ static int sysc_reset(struct sysc *ddata) if (ddata->pre_reset_quirk) ddata->pre_reset_quirk(ddata); - sysc_val = sysc_read_sysconfig(ddata); - sysc_val |= sysc_mask; - sysc_write(ddata, sysc_offset, sysc_val); + if (sysc_offset >= 0) { + sysc_val = sysc_read_sysconfig(ddata); + sysc_val |= sysc_mask; + sysc_write(ddata, sysc_offset, sysc_val); + /* Flush posted write */ + sysc_val = sysc_read_sysconfig(ddata); + } if (ddata->cfg.srst_udelay) usleep_range(ddata->cfg.srst_udelay, |