diff options
| author | Leonard Crestez <leonard.crestez@nxp.com> | 2019-04-30 15:06:11 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-05-13 10:51:31 +0200 |
| commit | ed61e18a4b4e445ae8622a4faec6a259601cc4a5 (patch) | |
| tree | 434beefd6fa9a4a2326a86affe4216fbddf4383d /drivers/base | |
| parent | 8f5e823f9131a430b12f73e9436d7486e20c16f5 (diff) | |
| download | linux-ed61e18a4b4e445ae8622a4faec6a259601cc4a5.tar.bz2 | |
PM / Domains: Add GENPD_FLAG_RPM_ALWAYS_ON flag
This is for power domains which can only be powered off for suspend but
not as part of runtime PM.
Suggested-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.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')
| -rw-r--r-- | drivers/base/power/domain.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 3d899e8abd58..a887575fafa9 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -130,6 +130,7 @@ static const struct genpd_lock_ops genpd_spin_ops = { #define genpd_is_always_on(genpd) (genpd->flags & GENPD_FLAG_ALWAYS_ON) #define genpd_is_active_wakeup(genpd) (genpd->flags & GENPD_FLAG_ACTIVE_WAKEUP) #define genpd_is_cpu_domain(genpd) (genpd->flags & GENPD_FLAG_CPU_DOMAIN) +#define genpd_is_rpm_always_on(genpd) (genpd->flags & GENPD_FLAG_RPM_ALWAYS_ON) static inline bool irq_safe_dev_in_no_sleep_domain(struct device *dev, const struct generic_pm_domain *genpd) @@ -517,7 +518,9 @@ static int genpd_power_off(struct generic_pm_domain *genpd, bool one_dev_on, * (1) The domain is configured as always on. * (2) When the domain has a subdomain being powered on. */ - if (genpd_is_always_on(genpd) || atomic_read(&genpd->sd_count) > 0) + if (genpd_is_always_on(genpd) || + genpd_is_rpm_always_on(genpd) || + atomic_read(&genpd->sd_count) > 0) return -EBUSY; list_for_each_entry(pdd, &genpd->dev_list, list_node) { @@ -1814,7 +1817,8 @@ int pm_genpd_init(struct generic_pm_domain *genpd, } /* Always-on domains must be powered on at initialization. */ - if (genpd_is_always_on(genpd) && !genpd_status_on(genpd)) + if ((genpd_is_always_on(genpd) || genpd_is_rpm_always_on(genpd)) && + !genpd_status_on(genpd)) return -EINVAL; if (genpd_is_cpu_domain(genpd) && |