libata: implement libata.spindown_compat

[pandora-kernel.git] / Documentation / SubmittingDrivers

diff --git a/Documentation/SubmittingDrivers b/Documentation/SubmittingDrivers
index 58bead0..d7e2642 100644 (file)
--- a/Documentation/SubmittingDrivers
+++ b/Documentation/SubmittingDrivers
@@ -87,6 +87,21 @@ Clarity:     It helps if anyone can see how to fix the driver. It helps
                driver that intentionally obfuscates how the hardware works
                it will go in the bitbucket.
 
                driver that intentionally obfuscates how the hardware works
                it will go in the bitbucket.
 

+PM support:    Since Linux is used on many portable and desktop systems, your
+               driver is likely to be used on such a system and therefore it
+               should support basic power management by implementing, if
+               necessary, the .suspend and .resume methods used during the
+               system-wide suspend and resume transitions.  You should verify
+               that your driver correctly handles the suspend and resume, but
+               if you are unable to ensure that, please at least define the
+               .suspend method returning the -ENOSYS ("Function not
+               implemented") error.  You should also try to make sure that your
+               driver uses as little power as possible when it's not doing
+               anything.  For the driver testing instructions see
+               Documentation/power/drivers-testing.txt and for a relatively
+               complete overview of the power management issues related to
+               drivers see Documentation/power/devices.txt .
+

 Control:       In general if there is active maintainance of a driver by
                the author then patches will be redirected to them unless
                they are totally obvious and without need of checking.
 Control:       In general if there is active maintainance of a driver by
                the author then patches will be redirected to them unless
                they are totally obvious and without need of checking.