diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_fbdev.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_fbdev.c | 49 |
1 files changed, 45 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c index 19be4bfbcc5..6b5beed28d7 100644 --- a/drivers/gpu/drm/i915/intel_fbdev.c +++ b/drivers/gpu/drm/i915/intel_fbdev.c @@ -289,7 +289,27 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, struct drm_device *dev = fb_helper->dev; int i, j; bool *save_enabled; - bool any_enabled = false; + bool fallback = true; + int num_connectors_enabled = 0; + int num_connectors_detected = 0; + + /* + * If the user specified any force options, just bail here + * and use that config. + */ + for (i = 0; i < fb_helper->connector_count; i++) { + struct drm_fb_helper_connector *fb_conn; + struct drm_connector *connector; + + fb_conn = fb_helper->connector_info[i]; + connector = fb_conn->connector; + + if (!enabled[i]) + continue; + + if (connector->force != DRM_FORCE_UNSPECIFIED) + return false; + } save_enabled = kcalloc(dev->mode_config.num_connector, sizeof(bool), GFP_KERNEL); @@ -306,6 +326,10 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, fb_conn = fb_helper->connector_info[i]; connector = fb_conn->connector; + + if (connector->status == connector_status_connected) + num_connectors_detected++; + if (!enabled[i]) { DRM_DEBUG_KMS("connector %d not enabled, skipping\n", connector->base.id); @@ -320,6 +344,8 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, continue; } + num_connectors_enabled++; + new_crtc = intel_fb_helper_crtc(fb_helper, encoder->crtc); /* @@ -329,7 +355,8 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, */ for (j = 0; j < fb_helper->connector_count; j++) { if (crtcs[j] == new_crtc) { - any_enabled = false; + DRM_DEBUG_KMS("fallback: cloned configuration\n"); + fallback = true; goto out; } } @@ -372,11 +399,25 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, encoder->crtc->base.id, modes[i]->name); - any_enabled = true; + fallback = false; + } + + /* + * If the BIOS didn't enable everything it could, fall back to have the + * same user experiencing of lighting up as much as possible like the + * fbdev helper library. + */ + if (num_connectors_enabled != num_connectors_detected && + num_connectors_enabled < INTEL_INFO(dev)->num_pipes) { + DRM_DEBUG_KMS("fallback: Not all outputs enabled\n"); + DRM_DEBUG_KMS("Enabled: %i, detected: %i\n", num_connectors_enabled, + num_connectors_detected); + fallback = true; } out: - if (!any_enabled) { + if (fallback) { + DRM_DEBUG_KMS("Not using firmware configuration\n"); memcpy(enabled, save_enabled, dev->mode_config.num_connector); kfree(save_enabled); return false; |