kernel.git/drivers/gpu/drm/i915, branch linux-3.15.y

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

2014-08-07T23:53:53Z

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

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

2014-07-28T15:08:27Z

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

2014-07-17T23:23:18Z

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

2014-07-17T23:23:17Z

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

2014-07-17T23:23:17Z

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

drm/i915: quirk asserts controllable backlight presence, overriding VBT

2014-07-17T23:23:17Z

commit 9c72cc6f00d24711ef585772396dd1ae180881a6 upstream. commit c675949ec58ca50d5a3ae3c757892f1560f6e896 Author: Jani Nikula Date: Wed Apr 9 11:31:37 2014 +0300 drm/i915: do not setup backlight if not available according to VBT caused a regression on machines with a misconfigured VBT. Add a quirk to assert the presence of a controllable backlight. Use it to ignore the VBT backlight presence check during backlight setup. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79813 Tested-by: James Duley Tested-by: Michael Mullin Reviewed-by: Jani Nikula Signed-off-by: Scot Doyle 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: fix display power sw state reporting

2014-07-09T18:21:32Z

commit b8c000d9bf23e7c1155ef421f595d1cbc25262da upstream. Atm, we refcount both power domains and power wells and intel_display_power_enabled_sw() returns the power domain refcount. What the callers are really interested in though is the sw state of the underlying power wells. Due to this we will report incorrectly that a given power domain is off if its power wells were enabled via another power domain, for example POWER_DOMAIN_INIT which enables all power wells. As a fix return instead the state based on the refcount of all power wells included in the passed in power domain. References: https://bugs.freedesktop.org/show_bug.cgi?id=79505 References: https://bugs.freedesktop.org/show_bug.cgi?id=79038 Reported-by: Chris Wilson Signed-off-by: Imre Deak Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter Acked-by: Jani Nikula Signed-off-by: Greg Kroah-Hartman

drm/i915: provide interface for audio driver to query cdclk

2014-07-09T18:21:26Z

commit c149dcb5c60bfea8871f16dfcc0690255eeb825f upstream. For Haswell and Broadwell, if the display power well has been disabled, the display audio controller divider values EM4 M VALUE and EM5 N VALUE will have been lost. The CDCLK frequency is required for reprogramming them to generate 24MHz HD-A link BCLK. So provide a private interface for the audio driver to query CDCLK. This is a stopgap solution until a more generic interface between audio and display drivers has been implemented. Signed-off-by: Jani Nikula Reviewed-by: Damien Lespiau Signed-off-by: Mengdong Lin Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

drm/i95: Initialize active ring->pid to -1

2014-07-09T18:21:26Z

commit eee73b46261325eb140d899b5371f49b02d88f63 upstream. Otherwise we print out spurious processes on unused rings in the error state. Signed-off-by: Chris Wilson Reviewed-by: Daniel Vetter Signed-off-by: Jani Nikula Signed-off-by: Greg Kroah-Hartman

drm/i915: default to having backlight if VBT not available

2014-07-09T18:21:26Z

commit 56c4b63aaf4c2cd91966b2a5e69e5367bea60bbe upstream. Apparently there are Apple laptops with magic smoke for a VBIOS, which we fail to find and use. Default to having and setting up backlight in this case. This fixes a regression introduced by commit c675949ec58ca50d5a3ae3c757892f1560f6e896 Author: Jani Nikula Date: Wed Apr 9 11:31:37 2014 +0300 drm/i915: do not setup backlight if not available according to VBT Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=77831 Reported-and-tested-by: Matteo Cypriani Reviewed-by: Imre Deak Signed-off-by: Jani Nikula Signed-off-by: Greg Kroah-Hartman