RADEON_PPLL_POST3_DIV_MASK
(pll_fb_post_div & RADEON_PPLL_POST3_DIV_MASK) >> 16);
(RADEON_PPLL_POST3_DIV_MASK | RADEON_PPLL_FB3_DIV_MASK)))) {
~RADEON_PPLL_POST3_DIV_MASK);