diff options
Diffstat (limited to 'drivers/gpu/drm/drm_crtc_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc_helper.c | 48 |
1 files changed, 33 insertions, 15 deletions
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index e490e69db21..964c5eb1fad 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -480,6 +480,7 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, int saved_x, saved_y; struct drm_encoder *encoder; bool ret = true; + bool depth_changed, bpp_changed; adjusted_mode = drm_mode_duplicate(dev, mode); @@ -488,6 +489,15 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, if (!crtc->enabled) return true; + if (old_fb && crtc->fb) { + depth_changed = (old_fb->depth != crtc->fb->depth); + bpp_changed = (old_fb->bits_per_pixel != + crtc->fb->bits_per_pixel); + } else { + depth_changed = true; + bpp_changed = true; + } + saved_mode = crtc->mode; saved_x = crtc->x; saved_y = crtc->y; @@ -500,7 +510,8 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, crtc->y = y; if (drm_mode_equal(&saved_mode, &crtc->mode)) { - if (saved_x != crtc->x || saved_y != crtc->y) { + if (saved_x != crtc->x || saved_y != crtc->y || + depth_changed || bpp_changed) { crtc_funcs->mode_set_base(crtc, crtc->x, crtc->y, old_fb); goto done; @@ -606,8 +617,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) struct drm_encoder **save_encoders, *new_encoder; struct drm_framebuffer *old_fb; bool save_enabled; - bool changed = false; - bool flip_or_move = false; + bool mode_changed = false; + bool fb_changed = false; struct drm_connector *connector; int count = 0, ro, fail = 0; struct drm_crtc_helper_funcs *crtc_funcs; @@ -635,7 +646,10 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) /* save previous config */ save_enabled = set->crtc->enabled; - /* this is meant to be num_connector not num_crtc */ + /* + * We do mode_config.num_connectors here since we'll look at the + * CRTC and encoder associated with each connector later. + */ save_crtcs = kzalloc(dev->mode_config.num_connector * sizeof(struct drm_crtc *), GFP_KERNEL); if (!save_crtcs) @@ -651,21 +665,25 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) /* We should be able to check here if the fb has the same properties * and then just flip_or_move it */ if (set->crtc->fb != set->fb) { - /* if we have no fb then its a change not a flip */ + /* If we have no fb then treat it as a full mode set */ if (set->crtc->fb == NULL) - changed = true; + mode_changed = true; + else if ((set->fb->bits_per_pixel != + set->crtc->fb->bits_per_pixel) || + set->fb->depth != set->crtc->fb->depth) + fb_changed = true; else - flip_or_move = true; + fb_changed = true; } if (set->x != set->crtc->x || set->y != set->crtc->y) - flip_or_move = true; + fb_changed = true; if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { DRM_DEBUG("modes are different\n"); drm_mode_debug_printmodeline(&set->crtc->mode); drm_mode_debug_printmodeline(set->mode); - changed = true; + mode_changed = true; } /* a) traverse passed in connector list and get encoders for them */ @@ -688,7 +706,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) } if (new_encoder != connector->encoder) { - changed = true; + mode_changed = true; connector->encoder = new_encoder; } } @@ -715,16 +733,16 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) new_crtc = set->crtc; } if (new_crtc != connector->encoder->crtc) { - changed = true; + mode_changed = true; connector->encoder->crtc = new_crtc; } } /* mode_set_base is not a required function */ - if (flip_or_move && !crtc_funcs->mode_set_base) - changed = true; + if (fb_changed && !crtc_funcs->mode_set_base) + mode_changed = true; - if (changed) { + if (mode_changed) { old_fb = set->crtc->fb; set->crtc->fb = set->fb; set->crtc->enabled = (set->mode != NULL); @@ -743,7 +761,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) set->crtc->desired_mode = set->mode; } drm_helper_disable_unused_functions(dev); - } else if (flip_or_move) { + } else if (fb_changed) { old_fb = set->crtc->fb; if (set->crtc->fb != set->fb) set->crtc->fb = set->fb; |