drm-intel-fixes-2021-09-16

Jani Nikula

@jani

7889367d · drm/i915: Enable -Wsometimes-uninitialized · Sep 14, 2021

drm/i915 fixes for v5.15-rc2:
- Propagate DP link training error returns
- Use max link params for eDP 1.3 and earlier
- Build warning fixes
- Gem selftest fixes
- Ensure wakeref is held before hardware access