As described in the comment on intel_detect_preproduction_hw(), Our policy for removing pre-production workarounds is to keep the current gen workarounds as a guide to the bring-up of the next gen (workarounds have a habit of persisting!). Anything older than that should be removed along with the complications they introduce. TGL and DG1 are well past the point where we should move forward with removing the hardware workarounds specific to internal/pre-production hardware. JSL/EHL appear to have productized A0 hardware, so all workarounds for those platforms will stay in the driver forever. We can probably remove some pre-production workarounds for RKL and ADL at this point as well, but the bspec doesn't have details about which steppings were only used in pre-production, so we'll need to track down that information later. Matt Roper (3): drm/i915/tgl: Drop support for pre-production steppings drm/i915/dg1: Drop support for pre-production steppings drm/i915/dg1: Drop final use of IS_DG1_GRAPHICS_STEP .../drm/i915/display/intel_display_power.c | 6 +- drivers/gpu/drm/i915/display/intel_psr.c | 26 ------ .../drm/i915/display/skl_universal_plane.c | 2 +- drivers/gpu/drm/i915/gt/intel_region_lmem.c | 2 +- drivers/gpu/drm/i915/gt/intel_workarounds.c | 86 +------------------ drivers/gpu/drm/i915/i915_driver.c | 2 + drivers/gpu/drm/i915/i915_drv.h | 13 --- drivers/gpu/drm/i915/intel_pm.c | 16 ---- 8 files changed, 10 insertions(+), 143 deletions(-) -- 2.39.1