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bus: ti-sysc: Handle swsup idle mode quirks

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Some modules have idlemodes wired, but not completely functional. We have
quirks for SWSUP_SIDLE and SWSUP_SIDLE_ACT to manage interconnect target
modules without hardware support, but we've been only using them so far
in legacy mode. Let's add support for SWSUP quirks in non-legacy mode too.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2019-05-27 04:51:55 -07:00
parent ae9ae12e9d
commit fb685f1c19
1 changed files with 17 additions and 8 deletions
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25
drivers/bus/ti-sysc.c
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@ -886,10 +886,15 @@ static int sysc_enable_module(struct device *dev)
if (!idlemodes || regbits->sidle_shift < 0)
goto set_midle;
best_mode = fls(ddata->cfg.sidlemodes) - 1;
if (best_mode > SYSC_IDLE_MASK) {
dev_err(dev, "%s: invalid sidlemode\n", __func__);
return -EINVAL;
if (ddata->cfg.quirks & (SYSC_QUIRK_SWSUP_SIDLE |
SYSC_QUIRK_SWSUP_SIDLE_ACT)) {
best_mode = SYSC_IDLE_NO;
} else {
best_mode = fls(ddata->cfg.sidlemodes) - 1;
if (best_mode > SYSC_IDLE_MASK) {
dev_err(dev, "%s: invalid sidlemode\n", __func__);
return -EINVAL;
}
}
reg &= ~(SYSC_IDLE_MASK << regbits->sidle_shift);
@ -973,10 +978,14 @@ set_sidle:
if (!idlemodes || regbits->sidle_shift < 0)
return 0;
ret = sysc_best_idle_mode(idlemodes, &best_mode);
if (ret) {
dev_err(dev, "%s: invalid sidlemode\n", __func__);
return ret;
if (ddata->cfg.quirks & SYSC_QUIRK_SWSUP_SIDLE) {
best_mode = SYSC_IDLE_FORCE;
} else {
ret = sysc_best_idle_mode(idlemodes, &best_mode);
if (ret) {
dev_err(dev, "%s: invalid sidlemode\n", __func__);
return ret;
}
}
reg &= ~(SYSC_IDLE_MASK << regbits->sidle_shift);