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>
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 6c6846c..9151ded 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -611,8 +611,7 @@
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 @@
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;