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PM: domains: Fix handling of unavailable/disabled idle states

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Platforms can provide the information about the availability of each
idle states via status flag. Platforms may have to disable one or more
idle states for various reasons like broken firmware or other unmet
dependencies.

Fix handling of such unavailable/disabled idle states by ignoring them
while parsing the states.

Fixes: a3381e3a65 ("PM / domains: Fix up domain-idle-states OF parsing")
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Sudeep Holla 2022-10-25 13:34:32 +01:00 committed by Rafael J. Wysocki
parent 247f34f7b8
commit e0c57a5c70
1 changed files with 4 additions and 0 deletions
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4
drivers/base/power/domain.c
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@ -2952,6 +2952,10 @@ static int genpd_iterate_idle_states(struct device_node *dn,
np = it.node;
if (!of_match_node(idle_state_match, np))
continue;
if (!of_device_is_available(np))
continue;
if (states) {
ret = genpd_parse_state(&states[i], np);
if (ret) {