[PATCH] pmdomain: core: Fall back to node name for idle states
From: Maulik Shah
Date: Mon Sep 14 2026 - 02:59:01 EST
The dt_idle_states uses idle-state-name when available and when missing
falls back to the node name. Do the same for domain-idle-states.
This lets pmdomain idle_states_desc debugfs show a name even when
idle-state-name is omitted.
Signed-off-by: Maulik Shah <maulik.shah@xxxxxxxxxxxxxxxx>
---
drivers/pmdomain/core.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/pmdomain/core.c b/drivers/pmdomain/core.c
index 052ec478dfcc..d0bcb4897477 100644
--- a/drivers/pmdomain/core.c
+++ b/drivers/pmdomain/core.c
@@ -3583,7 +3583,10 @@ static int genpd_parse_state(struct genpd_power_state *genpd_state,
if (!err)
genpd_state->residency_ns = 1000LL * residency;
- of_property_read_string(state_node, "idle-state-name", &genpd_state->name);
+ err = of_property_read_string(state_node, "idle-state-name",
+ &genpd_state->name);
+ if (err)
+ genpd_state->name = state_node->name;
genpd_state->power_on_latency_ns = 1000LL * exit_latency;
genpd_state->power_off_latency_ns = 1000LL * entry_latency;
@@ -4006,7 +4009,7 @@ static int idle_states_desc_show(struct seq_file *s, void *data)
snprintf(state_name, ARRAY_SIZE(state_name), "S%-5d", i);
seq_printf(s, "%-6s %-12llu %-14llu %s\n",
state_name, latency, residency,
- state->name ?: "N/A");
+ state->name);
}
genpd_unlock(genpd);
---
base-commit: 68142f986ff04b2b70b31db00f719bf690f64a9a
change-id: 20260914-pmdomain-idle-state-name-fallback-3bb5db520a30
Best regards,
--
Maulik Shah <maulik.shah@xxxxxxxxxxxxxxxx>