optimal_dclk_div 1702 drivers/gpu/drm/radeon/radeon.h 				  unsigned *optimal_dclk_div);
optimal_dclk_div  967 drivers/gpu/drm/radeon/radeon_uvd.c 				  unsigned *optimal_dclk_div)
optimal_dclk_div 1008 drivers/gpu/drm/radeon/radeon_uvd.c 			*optimal_dclk_div = dclk_div;