[PATCH 0/4] drm/i915: Fix clearing of BIOS power well requests

Imre Deak imre.deak at intel.com
Tue Feb 14 17:31:49 UTC 2017


While reading Ander's GLK DDI power well patches [1] I noticed a few
issues in the existing code related to clearing/taking over the power
well request bits from BIOS. These didn't cause a problem so far, but
would be exposed by his patchset, so after discussing with him I
decided to fix them.

Cc: Ander Conselvan de Oliveira <conselvan2 at gmail.com>
Cc: David Weinehall <david.weinehall at linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>

[1]
https://lists.freedesktop.org/archives/intel-gfx/2017-February/119532.html

Imre Deak (4):
  drm/i915: Remove redundant toggling from the power well sync_hw hooks
  drm/i915: Call the sync_hw hook for power wells without a domain
  drm/i915/gen9: Fix clearing of the BIOS power well request register
  drm/i915: Preserve the state of power wells not explicitly enabled

 drivers/gpu/drm/i915/intel_runtime_pm.c | 105 ++++++++++++++------------------
 1 file changed, 45 insertions(+), 60 deletions(-)

-- 
2.5.0



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