MPLL_CNTL_FLAG_AD_HALF_RATE  623 drivers/gpu/drm/amd/include/atombios.h #define MPLL_CNTL_FLAG_AD_HALF_RATE             0x10
MPLL_CNTL_FLAG_AD_HALF_RATE  561 drivers/gpu/drm/radeon/atombios.h #define MPLL_CNTL_FLAG_AD_HALF_RATE             0x10