[why] It's useful to know the max supported panel BPC and PIPE dither state for IGT testing. [how] * Expose the connector max supported BPC for the panel via a debugfs file on the connector, "output_bpc". Example: cat /sys/kernel/debug/dri/0/DP-1/output_bpc * Expose the dithering state for the crtc via a debugfs file "dither". Example: cat /sys/kernel/debug/dri/0/crtc-0/dither Test-with: 20200720165011.23918-1-bhanuprakash.modem@xxxxxxxxx Bhanuprakash Modem (2): i915/debug: Expose crtc dither state via debugfs i915/debug: Expose Max BPC info via debugfs .../drm/i915/display/intel_display_debugfs.c | 17 +++++++++++++++++ drivers/gpu/drm/i915/i915_debugfs.c | 17 +++++++++++++++++ 2 files changed, 34 insertions(+) -- 2.20.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
