diff options
| author | Dave Airlie <airlied@redhat.com> | 2010-10-19 10:36:47 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-10-19 14:12:22 +1000 |
| commit | 5480f727dc4c049eb46b191bfaeb034067aa6835 (patch) | |
| tree | d6b5166fd2e198e05de9027e0e61ebfb6abeb51f /drivers/gpu/drm/radeon/radeon_display.c | |
| parent | c9220b0f7cbd1d2272426aa81a72ae2f6582bb71 (diff) | |
Revert "drm/radeon/kms: remove some pll algo flags"
This reverts commit f28488c282d8916b9b6190cc41714815bbaf97d5.
On my rv610 test machine the monitor failed to light up after this.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 6c6846cdaa30..9151ded9c1cd 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -611,8 +611,7 @@ void radeon_compute_pll(struct radeon_pll *pll, if ((best_vco == 0 && error < best_error) || (best_vco != 0 && ((best_error > 100 && error < best_error - 100) || - (abs(error - best_error) < 100 && - vco_diff < best_vco_diff)))) { + (abs(error - best_error) < 100 && vco_diff < best_vco_diff)))) { best_post_div = post_div; best_ref_div = ref_div; best_feedback_div = feedback_div; @@ -620,6 +619,29 @@ void radeon_compute_pll(struct radeon_pll *pll, best_freq = current_freq; best_error = error; best_vco_diff = vco_diff; + } else if (current_freq == freq) { + if (best_freq == -1) { + best_post_div = post_div; + best_ref_div = ref_div; + best_feedback_div = feedback_div; + best_frac_feedback_div = frac_feedback_div; + best_freq = current_freq; + best_error = error; + best_vco_diff = vco_diff; + } else if (((pll->flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) || + ((pll->flags & RADEON_PLL_PREFER_HIGH_REF_DIV) && (ref_div > best_ref_div)) || + ((pll->flags & RADEON_PLL_PREFER_LOW_FB_DIV) && (feedback_div < best_feedback_div)) || + ((pll->flags & RADEON_PLL_PREFER_HIGH_FB_DIV) && (feedback_div > best_feedback_div)) || + ((pll->flags & RADEON_PLL_PREFER_LOW_POST_DIV) && (post_div < best_post_div)) || + ((pll->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; + best_frac_feedback_div = frac_feedback_div; + best_freq = current_freq; + best_error = error; + best_vco_diff = vco_diff; + } } if (current_freq < freq) min_frac_feed_div = frac_feedback_div + 1; |