diff options
| author | Ulf Hansson <ulf.hansson@linaro.org> | 2025-07-01 13:47:13 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2025-07-09 13:29:13 +0200 |
| commit | ee766b0175861ef2b2e774d2c49eba9a6b38dc7a (patch) | |
| tree | d263ed5c7498ece9b3d0d8501f7ee8e8c3d8a18d /drivers/cpuidle | |
| parent | 7cfa380de70301e444e12376470c81de9e154a2f (diff) | |
cpuidle: riscv-sbi: Opt-out from genpd's common ->sync_state() support
The riscv-sbi-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.
Cc: Anup Patel <anup@brainfault.org>
Cc: linux-riscv@lists.infradead.org
Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X
Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Rahul Pathak <rpathak@ventanamicro.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250701114733.636510-12-ulf.hansson@linaro.org
Diffstat (limited to 'drivers/cpuidle')
| -rw-r--r-- | drivers/cpuidle/cpuidle-riscv-sbi.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/cpuidle/cpuidle-riscv-sbi.c b/drivers/cpuidle/cpuidle-riscv-sbi.c index 0fe1ece9fbdc..83d58d00872f 100644 --- a/drivers/cpuidle/cpuidle-riscv-sbi.c +++ b/drivers/cpuidle/cpuidle-riscv-sbi.c @@ -347,11 +347,16 @@ deinit: static void sbi_cpuidle_domain_sync_state(struct device *dev) { + struct sbi_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. */ sbi_cpuidle_pd_allow_domain_state = true; + + list_for_each_entry(pd_provider, &sbi_pd_providers, link) + of_genpd_sync_state(pd_provider->node); } #ifdef CONFIG_DT_IDLE_GENPD @@ -396,7 +401,8 @@ static int sbi_pd_init(struct device_node *np) 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 is available. */ if (sbi_cpuidle_use_osi) |