[Intel-gfx] [PATCH 0/3] drm/i915/bxt: Fix PHY init with partial BIOS config

Imre Deak imre.deak at intel.com
Wed Apr 20 17:46:03 UTC 2016


It's possible that BIOS initializes only a single channel on PHY0 and then
enables it or only enables PHY0 but leaves PHY1 disabled. This patchset
fixes handling of these cases.

CC: Matt Roper <matthew.d.roper at intel.com>

Imre Deak (3):
  drm/i915/bxt: Use PHY0 GRC value for HW state verification
  drm/i915/bxt: Wait for PHY1 GRC done if PHY0 was already enabled
  drm/i915/bxt: Force reprogramming a PHY with invalid HW state

 drivers/gpu/drm/i915/intel_ddi.c | 43 +++++++++++++++++++++++++++++++---------
 1 file changed, 34 insertions(+), 9 deletions(-)

-- 
2.5.0



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