RADEON_PLL_NO_ODD_POST_DIV
radeon_crtc->pll_flags |= RADEON_PLL_NO_ODD_POST_DIV;
if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))
pll->flags |= RADEON_PLL_NO_ODD_POST_DIV;