diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2008-08-14 14:49:45 -0400 |
|---|---|---|
| committer | Alex Deucher <alexdeucher@gmail.com> | 2008-08-14 14:49:45 -0400 |
| commit | 92ee21df344a989778e37369c7beb3904a00ead6 (patch) | |
| tree | 614c1163751f139fbb4e881889550dbffce8d0ca /src/radeon_crtc.c | |
| parent | 0d5e0347af4322713075193154b8a348de4a0b52 (diff) | |
PLL adjustments
Seems higher dotclocks prefer a higher FB div.
Someone with a lot of should try and find out where
the div sweet spots are for various dotclock ranges.
fixes bug 17125
Diffstat (limited to 'src/radeon_crtc.c')
| -rw-r--r-- | src/radeon_crtc.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/radeon_crtc.c b/src/radeon_crtc.c index 13166698..5ab00c1f 100644 --- a/src/radeon_crtc.c +++ b/src/radeon_crtc.c @@ -228,7 +228,12 @@ RADEONComputePLL(RADEONPLLPtr pll, best_freq = current_freq; best_error = error; best_vco_diff = vco_diff; - } else if ((flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) { + } else if (((flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) || + ((flags & RADEON_PLL_PREFER_HIGH_REF_DIV) && (ref_div > best_ref_div)) || + ((flags & RADEON_PLL_PREFER_LOW_FB_DIV) && (feedback_div < best_feedback_div)) || + ((flags & RADEON_PLL_PREFER_HIGH_FB_DIV) && (feedback_div > best_feedback_div)) || + ((flags & RADEON_PLL_PREFER_LOW_POST_DIV) && (post_div < best_post_div)) || + ((flags & RADEON_PLL_PREFER_HIGH_POST_DIV) && (post_div > best_post_div))) { best_post_div = post_div; best_ref_div = ref_div; best_feedback_div = feedback_div; |