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PM / Domains: Add GENPD_FLAG_RPM_ALWAYS_ON flag

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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>
This commit is contained in:
Leonard Crestez
2019-04-30 15:06:11 +00:00
committed by Rafael J. Wysocki
parent 8f5e823f91
commit ed61e18a4b
2 changed files with 10 additions and 2 deletions
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8
drivers/base/power/domain.c
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@@ -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) &&