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The only real platform with DISPLAY_VER == 10 is GLK. We don't need to handle CNL explicitly in intel_ddi.c. A lot of special code for CNL can be removed. There were some __cnl.*() functions that were created to share the implementation between ICL and CNL. Those are now embedded in the only caller, in ICL. Remove code and rename functions/macros accordingly to use ICL prefix for those that are still needed. Verified with: make EXTRA_CFLAGS=-Wunused drivers/gpu/drm/i915/display/intel_dpll_mgr.o Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210729233934.2059489-1-lucas.demarchi@intel.com