For a long time we are trying to enable PSR by default everwhere but we always end up in soem specific corner case in one platform or another and end up not enabling in older stable platforms that could benefit from the power saving it provides. So, let's change the approach here and try to enable it separated. The new blocking issue is for Skylake and Kabylake due to a vblank wait situation with DMC firmware: https://bugs.freedesktop.org/show_bug.cgi?id=94126 So that case will block PSR on SKL and KBL. But this doesn't affect at all other platforms that don't have DMC. Also I decided to split the rest of platforms in two groups since Valleyview/Cherryview has a complete different Hardware PSR implementation than the rest of the platorms. Also it uses only link standby what should be safier. So, 1 patch to add the possibility of enable per platform, 1 patch for VLV/CHV and 1 patch for HSW/BDW. I hope to get SKL/KBL ready soon. Thanks, Rodrigo. Rodrigo Vivi (3): drm/i915: Change i915.enable_psr parameter to use per platform default. drm/i915: Enable PSR by default on Valleyview and Cherryview. drm/i915: Enable PSR by default on Haswell and Broadwell. drivers/gpu/drm/i915/i915_params.c | 5 +++-- drivers/gpu/drm/i915/intel_psr.c | 9 +++++++++ 2 files changed, 12 insertions(+), 2 deletions(-) -- 2.4.3 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
