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authorSudeep Holla <sudeep.holla@arm.com>2022-10-25 15:34:32 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2022-10-26 14:28:39 +0300
commite0c57a5c70c13317238cb19a7ded0eab4a5f7de5 (patch)
tree81b112a177cea853e0b30faa62279121aeda2594 /drivers/base/power
parent247f34f7b80357943234f93f247a1ae6b6c3a740 (diff)
downloadlinux-e0c57a5c70c13317238cb19a7ded0eab4a5f7de5.tar.xz
PM: domains: Fix handling of unavailable/disabled idle states
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: a3381e3a65cb ("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>
Diffstat (limited to 'drivers/base/power')
-rw-r--r--drivers/base/power/domain.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index ead135c7044c..6471b559230e 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -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) {