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authorAndres Salomon <dilinger@queued.net>2008-04-28 13:15:03 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-28 19:58:36 +0400
commitb6f448e99ce7955b9707ed36a46cab2c6ddf7ddc (patch)
tree74ae26692c1fd713a0178faca99dea6761d442e8 /Documentation/cciss.txt
parent46fb6f110dfc3fc99f44cf701f66ea3e790b6a81 (diff)
downloadlinux-b6f448e99ce7955b9707ed36a46cab2c6ddf7ddc.tar.xz
PM/gxfb: add hook to PM console layer that allows disabling of suspend VT switch
Prior to suspend, we allocate and switch to a new VT; after suspend, we switch back to the original VT. This can be slow, and is completely unnecessary if the framebuffer we're using can restore video properly. This adds a hook that allows drivers to select whether or not to do this vt switch, and changes the gxfb driver to call this hook. It also adds a module param to gxfb to allow controlling of the vt switch (defaulting to no switch). (Note: I'm not convinced that console_sem is the best way to protect this, but we should probably have some form of locking..) [akpm@linux-foundation.org: build fix] Signed-off-by: Andres Salomon <dilinger@debian.org> Cc: Jordan Crouse <jordan.crouse@amd.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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