From 925b44a273aa8c4c23c006c1228aacd538eead09 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 8 Dec 2011 23:27:28 +0100 Subject: PM / Domains: Provide an always on power domain governor Since systems are likely to have power domains that can't be turned off for various reasons at least temporarily while implementing power domain support provide a default governor which will always refuse to power off the domain, saving platforms having to implement their own. Since the code is so tiny don't bother with a Kconfig symbol for it. Signed-off-by: Mark Brown Signed-off-by: Rafael J. Wysocki --- drivers/base/power/domain_governor.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers/base/power') diff --git a/drivers/base/power/domain_governor.c b/drivers/base/power/domain_governor.c index da78540e9b40..51527ee92d10 100644 --- a/drivers/base/power/domain_governor.c +++ b/drivers/base/power/domain_governor.c @@ -141,3 +141,16 @@ struct dev_power_governor simple_qos_governor = { .stop_ok = default_stop_ok, .power_down_ok = default_power_down_ok, }; + +static bool always_on_power_down_ok(struct dev_pm_domain *domain) +{ + return false; +} + +/** + * pm_genpd_gov_always_on - A governor implementing an always-on policy + */ +struct dev_power_governor pm_domain_always_on_gov = { + .power_down_ok = always_on_power_down_ok, + .stop_ok = default_stop_ok, +}; -- cgit v1.2.3