]> git.karo-electronics.de Git - linux-beck.git/commit
ARM: OMAP: omap_device: don't attempt late suspend if no driver bound
authorKevin Hilman <khilman@ti.com>
Tue, 10 Jul 2012 22:29:04 +0000 (15:29 -0700)
committerKevin Hilman <khilman@ti.com>
Wed, 12 Sep 2012 17:51:56 +0000 (10:51 -0700)
commit72bb6f9b51c82c820ddef892455a85b115460904
tree1b1fd1b1b04e53b3d8ecbef706e69e396f1010a6
parente753345bec8fef81d1e87710917f89dc75f39b2a
ARM: OMAP: omap_device: don't attempt late suspend if no driver bound

Currently, the omap_device PM domain layer uses the late suspend and
early resume callbacks to ensure devices are in their low power
states.

However, this is attempted even in cases where a driver probe has
failed.  If a driver's ->probe() method fails, the driver is likely in
a state where it is not expecting its runtime PM callbacks to be
called, yet currently the omap_device PM domain code attempts to call
the drivers callbacks.

To fix, use the omap_device driver_status field to check whether a
driver is bound to the omap_device before attempting to trigger driver
callbacks.

Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
arch/arm/plat-omap/omap_device.c