linux-stable.git/drivers/gpu, branch linux-3.15.y

drm/i915: Ignore VBT backlight presence check on HP Chromebook 14

2014-08-07T23:53:53+00:00

commit 724cb06fa9b1e1ffd98188275543fdb3b8eaca4f upstream.

commit c675949ec58ca50d5a3ae3c757892f1560f6e896
    drm/i915: do not setup backlight if not available according to VBT

caused a regression on the HP Chromebook 14 (with Celeron 2955U CPU),
which has a misconfigured VBT. Apply quirk to ignore the VBT backlight
presence check during backlight setup.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79813
Signed-off-by: Scot Doyle 
Tested-by: Stefan Nagy 
Cc: Jani Nikula 
Cc: Daniel Vetter 
Signed-off-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman

drm/radeon: fix cut and paste issue for hawaii.

2014-07-31T19:44:09+00:00

commit 1b2c4869d8247f9e202fa8a73777c34adc62d409 upstream.

This is a halfway fix for hawaii acceleration. More fixes to come
but hopefully isolated to userspace.

Signed-off-by: Jérôme Glisse 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

drm/radeon: fix irq ring buffer overflow handling

2014-07-31T19:44:08+00:00

commit e8c214d22e76dd0ead38f97f8d2dc09aac70d651 upstream.

We must mask out the overflow bit as well, otherwise
the wptr will never match the rptr again and the interrupt
handler will loop forever.

Signed-off-by: Christian König 
Signed-off-by: Alex Deucher 
Reviewed-by: Michel Dänzer 
Signed-off-by: Greg Kroah-Hartman

Revert "drm/i915: reverse dp link param selection, prefer fast over wide again"

2014-07-28T15:08:27+00:00

commit c6930992948adf0f8fc1f6ff1da51c5002a2cf95 upstream.

This reverts commit 38aecea0ccbb909d635619cba22f1891e589b434.

This breaks Haswell Thinkpad + Lenovo dock in SST mode with a HDMI monitor attached.

Before this we can 1920x1200 mode, after this we only ever get 1024x768, and
a lot of deferring.

This didn't revert clean, but this should be fine.

bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1117008
Signed-off-by: Dave Airlie 
Signed-off-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman

drm/radeon: avoid leaking edid data

2014-07-28T15:08:27+00:00

commit 0ac66effe7fcdee55bda6d5d10d3372c95a41920 upstream.

In some cases we fetch the edid in the detect() callback
in order to determine what sort of monitor is connected.
If that happens, don't fetch the edid again in the get_modes()
callback or we will leak the edid.

Signed-off-by: Alex Deucher 
Signed-off-by: Greg Kroah-Hartman

drm/qxl: return IRQ_NONE if it was not our irq

2014-07-28T15:08:27+00:00

commit fbb60fe35ad579b511de8604b06a30b43846473b upstream.

Return IRQ_NONE if it was not our irq. This is necessary for the case
when qxl is sharing irq line with a device A in a crash kernel. If qxl
is initialized before A and A's irq was raised during this gap,
returning IRQ_HANDLED in this case will cause this irq to be raised
again after EOI since kernel think it was handled but in fact it was
not.

Cc: Gerd Hoffmann 
Signed-off-by: Jason Wang 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

drm/radeon: set default bl level to something reasonable

2014-07-28T15:08:27+00:00

commit 201bb62402e0227375c655446ea04fcd0acf7287 upstream.

If the value in the scratch register is 0, set it to the
max level.  This fixes an issue where the console fb blanking
code calls back into the backlight driver on unblank and then
sets the backlight level to 0 after the driver has already
set the mode and enabled the backlight.

bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=81382
https://bugs.freedesktop.org/show_bug.cgi?id=70207

Signed-off-by: Alex Deucher 
Tested-by: David Heidelberger 
Signed-off-by: Greg Kroah-Hartman

drm/i915: Don't clobber the GTT when it's within stolen memory

2014-07-17T23:23:18+00:00

commit f1e1c2129b79cfdaf07bca37c5a10569fe021abe upstream.

On most gen2-4 platforms the GTT can be (or maybe always is?)
inside the stolen memory region. If that's the case, reduce the
size of the stolen memory appropriately to make make sure we
don't clobber the GTT.

v2: Deal with gen4 36 bit physical address

Signed-off-by: Ville Syrjälä 
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80151
Acked-by: Chris Wilson 
Signed-off-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman

drm/i915: Toshiba CB35 has a controllable backlight

2014-07-17T23:23:17+00:00

commit d4967d8c6d4f52623f2be8eaff0b445dc5863c92 upstream.

The Toshiba CB35 Chromebook (with Celeron 2955U CPU) has a controllable
backlight although its VBT reports otherwise. Apply quirk to ignore the
backlight presence check during backlight setup.

Patch tested by author on Toshiba CB35.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79813
Signed-off-by: Scot Doyle 
CC: Jani Nikula 
Signed-off-by: Jani Nikula 
[danvet: Add cc: stable because the regressing commit is in 3.15.]
Signed-off-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman

drm/i915: Acer C720 and C720P have controllable backlights

2014-07-17T23:23:17+00:00

commit 2e93a1aa9ca455aa3ad0294bcd6d66f38bf8b758 upstream.

The Acer C720 and C720P Chromebooks (with Celeron 2955U CPU) have a
controllable backlight although their VBT reports otherwise. Apply quirk
to ignore the backlight presence check during backlight setup.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79813
Tested-by: James Duley 
Tested-by: Michael Mullin 
Signed-off-by: Scot Doyle 
CC: Jani Nikula 
Signed-off-by: Jani Nikula 
[danvet: Add cc: stable because the regressing commit is in 3.15.]
Signed-off-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman