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| author | Kevin Hilman <khilman@ti.com> | 2011-07-12 22:48:19 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2011-07-12 22:48:19 +0200 |
| commit | c03f007a8bf0e092caeb6856a5c8a850df10b974 (patch) | |
| tree | 9c75aca05734dcdf04f7203851c78254703dee5e /arch/arm/plat-omap/include | |
| parent | 256a5435975e344b975f89c5434aa6f6eeb03fa1 (diff) | |
| download | linux-c03f007a8bf0e092caeb6856a5c8a850df10b974.tar.bz2 | |
OMAP: PM: omap_device: add system PM methods for PM domain handling
In the omap_device PM domain callbacks, use omap_device idle/enable to
automatically manage device idle states during system suspend/resume.
If an omap_device has not already been runtime suspended, the
->suspend_noirq() method of the PM domain will use omap_device_idle()
to idle the HW after calling the driver's ->runtime_suspend()
callback. Similarily, upon resume, if the device was suspended during
->suspend_noirq(), the ->resume_noirq() method of the PM domain will
use omap_device_enable() to enable the HW and then call the driver's
->runtime_resume() callback.
If a device has already been runtime suspended, the noirq methods of
the PM domain leave the device runtime suspended by default.
However, if a driver needs to runtime resume a device during suspend
(for example, to change its wakeup settings), it may do so using
pm_runtime_get* in it's ->suspend() callback.
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'arch/arm/plat-omap/include')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/omap_device.h | 4 |
1 files changed, 4 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 e4c349ff9fd8..bc36d05e13e4 100644 --- a/arch/arm/plat-omap/include/plat/omap_device.h +++ b/arch/arm/plat-omap/include/plat/omap_device.h @@ -44,6 +44,9 @@ extern struct device omap_device_parent; #define OMAP_DEVICE_STATE_IDLE 2 #define OMAP_DEVICE_STATE_SHUTDOWN 3 +/* omap_device.flags values */ +#define OMAP_DEVICE_SUSPENDED BIT(0) + /** * struct omap_device - omap_device wrapper for platform_devices * @pdev: platform_device @@ -73,6 +76,7 @@ struct omap_device { s8 pm_lat_level; u8 hwmods_cnt; u8 _state; + u8 flags; }; /* Device driver interface (call via platform_data fn ptrs) */ |