[PATCH 2/3] drm/radeon/kms: remove some pll algo flags

[Alex Deucher]

These shouldn't be needed with the post div changes
in the last patch.

Signed-off-by: Alex Deucher <alexdeucher at gmail.com>
---
 drivers/gpu/drm/radeon/atombios_crtc.c      |   14 +-------------
 drivers/gpu/drm/radeon/radeon_display.c     |   26 ++------------------------
 drivers/gpu/drm/radeon/radeon_legacy_crtc.c |    5 -----
 drivers/gpu/drm/radeon/radeon_mode.h        |   14 ++++----------
 4 files changed, 7 insertions(+), 52 deletions(-)

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index cd0290f..ca04a1b 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -501,21 +501,9 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
 		    (rdev->family == CHIP_RS740))
 			pll->flags |= (/*RADEON_PLL_USE_FRAC_FB_DIV |*/
 				       RADEON_PLL_PREFER_CLOSEST_LOWER);
-
-		if (ASIC_IS_DCE32(rdev) && mode->clock > 200000)	/* range limits??? */
-			pll->flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
-		else
-			pll->flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
-	} else {
+	} else
 		pll->flags |= RADEON_PLL_LEGACY;
 
-		if (mode->clock > 200000)	/* range limits??? */
-			pll->flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
-		else
-			pll->flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
-
-	}
-
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 		if (encoder->crtc == crtc) {
 			radeon_encoder = to_radeon_encoder(encoder);
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 1de2248..f43e9d3 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -579,7 +579,8 @@ static void radeon_compute_pll_legacy(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;
@@ -587,29 +588,6 @@ static void radeon_compute_pll_legacy(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;
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index 305049a..d60b319 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -722,11 +722,6 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
 	else
 		pll->algo = PLL_ALGO_LEGACY;
 
-	if (mode->clock > 200000) /* range limits??? */
-		pll->flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
-	else
-		pll->flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
-
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 		if (encoder->crtc == crtc) {
 			struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 17a6602..9338a58 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -139,16 +139,10 @@ struct radeon_tmds_pll {
 #define RADEON_PLL_NO_ODD_POST_DIV      (1 << 1)
 #define RADEON_PLL_USE_REF_DIV          (1 << 2)
 #define RADEON_PLL_LEGACY               (1 << 3)
-#define RADEON_PLL_PREFER_LOW_REF_DIV   (1 << 4)
-#define RADEON_PLL_PREFER_HIGH_REF_DIV  (1 << 5)
-#define RADEON_PLL_PREFER_LOW_FB_DIV    (1 << 6)
-#define RADEON_PLL_PREFER_HIGH_FB_DIV   (1 << 7)
-#define RADEON_PLL_PREFER_LOW_POST_DIV  (1 << 8)
-#define RADEON_PLL_PREFER_HIGH_POST_DIV (1 << 9)
-#define RADEON_PLL_USE_FRAC_FB_DIV      (1 << 10)
-#define RADEON_PLL_PREFER_CLOSEST_LOWER (1 << 11)
-#define RADEON_PLL_USE_POST_DIV         (1 << 12)
-#define RADEON_PLL_IS_LCD               (1 << 13)
+#define RADEON_PLL_USE_FRAC_FB_DIV      (1 << 4)
+#define RADEON_PLL_PREFER_CLOSEST_LOWER (1 << 5)
+#define RADEON_PLL_USE_POST_DIV         (1 << 6)
+#define RADEON_PLL_IS_LCD               (1 << 7)
 
 /* pll algo */
 enum radeon_pll_algo {
-- 
1.7.1.1