MaxPixelClock    8226 drivers/gpu/drm/amd/include/atombios.h   ULONG    MaxPixelClock;        //   dd   ?   ; maximum pixel clock(in Hz) for graphics mode
MaxPixelClock    6956 drivers/gpu/drm/radeon/atombios.h 	ULONG			MaxPixelClock;        //	dd	?	; maximum pixel clock(in Hz) for graphics mode