From 543f2503a956601dd490c6cde0ebf6adb4653e50 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 10 May 2010 23:10:13 +0200 Subject: [PATCH] PM / platform_bus: Allow runtime PM by default Currently the default runtime PM callbacks for platform devices return -ENOSYS, preventing the use of runtime PM platforms until they have provided at least a default implementation. This hinders the use of runtime PM by devices which work with many platforms such as memory mapped devices, MFDs and on chip IPs shared by multiple architectures. Change the default implementation to the standard pm_generic_runtime one, allowing drivers to use runtime PM without per-architecture changes. Signed-off-by: Mark Brown Acked-by: Greg Kroah-Hartman Signed-off-by: Rafael J. Wysocki --- drivers/base/platform.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 4b4b565c835f..a6c07797c88e 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -967,17 +967,17 @@ static int platform_pm_restore_noirq(struct device *dev) int __weak platform_pm_runtime_suspend(struct device *dev) { - return -ENOSYS; + return pm_generic_runtime_suspend(dev); }; int __weak platform_pm_runtime_resume(struct device *dev) { - return -ENOSYS; + return pm_generic_runtime_resume(dev); }; int __weak platform_pm_runtime_idle(struct device *dev) { - return -ENOSYS; + return pm_generic_runtime_idle(dev); }; #else /* !CONFIG_PM_RUNTIME */ -- 2.11.0