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| author |   Patrick Delaunay <patrick.delaunay@foss.st.com> | 2024-11-19 14:18:34 +0100 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2024-12-10 11:57:32 +0100 |
| commit | bfd5859709ee72f8a22cb3594eabd275ed030778 (patch) | |
| tree | cf4cb9a1b6080aaa6220241d0af52f0c17391f7d | |
| parent | Linux 6.13-rc2 (diff) | |
| download | wireguard-linux-bfd5859709ee72f8a22cb3594eabd275ed030778.tar.xz wireguard-linux-bfd5859709ee72f8a22cb3594eabd275ed030778.zip | |
cpuidle: psci: Activate GENPD_FLAG_ACTIVE_WAKEUP with OSI
Set GENPD_FLAG_ACTIVE_WAKEUP flag for domain psci cpuidle when OSI
is activated, then when a device is set as the wake-up source using
device_set_wakeup_path, the PSCI power domain could be retained to allow
so that the associated device can wake up the system.
With this flag, for S2IDLE system-wide suspend, the wake-up path is
managed in each device driver and is tested in the power framework:
a PSCI domain is only turned off when GENPD_FLAG_ACTIVE_WAKEUP is enabled
and the associated device is not in the wake-up path, so PSCI CPUIdle
selects the lowest level in the PSCI topology according to the wake-up
path.
This patch is a preliminary step to support PSCI OSI on the STM32MP25
platform with the D1 domain (power-domain-cluster) for the A35 cortex
cluster and for the associated peripherals including EXTI1 which manages
the wake-up interrupts for domain D1.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Message-ID: <20241119141827.1.I6129b16ec6b558efc1707861db87e55bf7022f62@changeid>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | drivers/cpuidle/cpuidle-psci-domain.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cpuidle/cpuidle-psci-domain.c b/drivers/cpuidle/cpuidle-psci-domain.c index 146f97068022..5fb5228f6bf1 100644 --- a/drivers/cpuidle/cpuidle-psci-domain.c +++ b/drivers/cpuidle/cpuidle-psci-domain.c @@ -72,6 +72,7 @@ static int psci_pd_init(struct device_node *np, bool use_osi) */ if (use_osi) { pd->power_off = psci_pd_power_off; + pd->flags |= GENPD_FLAG_ACTIVE_WAKEUP; if (IS_ENABLED(CONFIG_PREEMPT_RT)) pd->flags |= GENPD_FLAG_RPM_ALWAYS_ON; } else { |