From c03f007a8bf0e092caeb6856a5c8a850df10b974 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Tue, 12 Jul 2011 22:48:19 +0200 Subject: 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 Signed-off-by: Rafael J. Wysocki --- arch/arm/plat-omap/include/plat/omap_device.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/arm/plat-omap/include/plat/omap_device.h') 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) */ -- cgit