diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_crtc.c | 14 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 26 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_legacy_crtc.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_mode.h | 14 |
4 files changed, 52 insertions, 7 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 037e3260cb7c..176f424975ac 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -501,9 +501,21 @@ 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); - } else + + 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 { 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 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; diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c index c0bf8b7cc56c..f8dae717acc8 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c @@ -745,6 +745,11 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode) 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) { 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 3cda63e37b28..d58b003e9a04 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -139,10 +139,16 @@ 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_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) +#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) struct radeon_pll { /* reference frequency */ |