By default, omap_devices will be automatically idled on suspend
(and re-enabled on resume.) Using this new API, device init code
can disable this feature if desired.
NOTE: any driver/device that has been runtime PM converted should
not be using this API.
Signed-off-by: Kevin Hilman <khilman@xxxxxx>
---
arch/arm/plat-omap/include/plat/omap_device.h | 5 +++++
arch/arm/plat-omap/omap_device.c | 6 ++++++
2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/arch/arm/plat-omap/include/plat/omap_device.h b/arch/arm/plat-omap/include/plat/omap_device.h
index bc36d05..ee405b36 100644
--- a/arch/arm/plat-omap/include/plat/omap_device.h
+++ b/arch/arm/plat-omap/include/plat/omap_device.h
@@ -46,6 +46,7 @@ extern struct device omap_device_parent;
/* omap_device.flags values */
#define OMAP_DEVICE_SUSPENDED BIT(0)
+#define OMAP_DEVICE_NO_IDLE_ON_SUSPEND BIT(1)
/**
* struct omap_device - omap_device wrapper for platform_devices
@@ -121,6 +122,10 @@ int omap_device_enable_hwmods(struct omap_device *od);
int omap_device_disable_clocks(struct omap_device *od);
int omap_device_enable_clocks(struct omap_device *od);
+static inline void omap_device_disable_idle_on_suspend(struct omap_device *od)
+{
+ od->flags |= OMAP_DEVICE_NO_IDLE_ON_SUSPEND;
+}
/*
* Entries should be kept in latency order ascending
diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c
index b93cfdc..2526fa3 100644
--- a/arch/arm/plat-omap/omap_device.c
+++ b/arch/arm/plat-omap/omap_device.c
@@ -573,6 +573,9 @@ static int _od_suspend_noirq(struct device *dev)
struct omap_device *od = to_omap_device(pdev);
int ret;
+ if (od->flags & OMAP_DEVICE_NO_IDLE_ON_SUSPEND)
+ return pm_generic_suspend_noirq(dev);
+
ret = pm_generic_suspend_noirq(dev);
if (!ret && !pm_runtime_status_suspended(dev)) {
@@ -590,6 +593,9 @@ static int _od_resume_noirq(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
struct omap_device *od = to_omap_device(pdev);
+ if (od->flags & OMAP_DEVICE_NO_IDLE_ON_SUSPEND)
+ return pm_generic_resume_noirq(dev);
+
if ((od->flags & OMAP_DEVICE_SUSPENDED) &&
!pm_runtime_status_suspended(dev)) {
od->flags &= ~OMAP_DEVICE_SUSPENDED;
--
1.7.6
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