From 7cfa380de70301e444e12376470c81de9e154a2f Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Tue, 1 Jul 2025 13:47:12 +0200 Subject: [PATCH] cpuidle: psci: Opt-out from genpd's common ->sync_state() support The cpuidle-psci-domain implements its own specific ->sync_state() callback. Let's set the GENPD_FLAG_NO_SYNC_STATE to inform genpd about it. Moreover, let's call of_genpd_sync_state() to make sure genpd tries to power off unused PM domains. Tested-by: Hiago De Franco # Colibri iMX8X Tested-by: Tomi Valkeinen # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson Link: https://lore.kernel.org/r/20250701114733.636510-11-ulf.hansson@linaro.org --- drivers/cpuidle/cpuidle-psci-domain.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/cpuidle/cpuidle-psci-domain.c b/drivers/cpuidle/cpuidle-psci-domain.c index 2041f59116ce..b880ce2df8b5 100644 --- a/drivers/cpuidle/cpuidle-psci-domain.c +++ b/drivers/cpuidle/cpuidle-psci-domain.c @@ -63,7 +63,8 @@ static int psci_pd_init(struct device_node *np, bool use_osi) if (!pd_provider) goto free_pd; - pd->flags |= GENPD_FLAG_IRQ_SAFE | GENPD_FLAG_CPU_DOMAIN; + pd->flags |= GENPD_FLAG_IRQ_SAFE | GENPD_FLAG_CPU_DOMAIN | + GENPD_FLAG_NO_SYNC_STATE; /* * Allow power off when OSI has been successfully enabled. @@ -128,11 +129,16 @@ static void psci_pd_remove(void) static void psci_cpuidle_domain_sync_state(struct device *dev) { + struct psci_pd_provider *pd_provider; + /* * All devices have now been attached/probed to the PM domain topology, * hence it's fine to allow domain states to be picked. */ psci_pd_allow_domain_state = true; + + list_for_each_entry(pd_provider, &psci_pd_providers, link) + of_genpd_sync_state(pd_provider->node); } static const struct of_device_id psci_of_match[] = { -- 2.51.0