From d84a0f3280c48fa28857de59a47e2fbf8753969f Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 18 Aug 2014 10:35:29 -0700 Subject: [PATCH] drm/i915: honour forced connector modes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In the move over to use BIOS connector configs, we lost the ability to force a specific set of connectors on or off. Try to remedy that by dropping back to the old behavior if we detect a hard coded connector config that tries to enable a connector (disabling is easy!). Based on earlier patches by Jesse Barnes. v2: Remove Jesse's patch Reported-by: Ville Syrjälä Signed-off-by: Chris Wilson Cc: Jesse Barnes Cc: Ville Syrjälä Signed-off-by: Rodrigo Vivi Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_fbdev.c | 33 +++++++++++------------------- 1 file changed, 12 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c index cf052a39558d..b992133824f2 100644 --- a/drivers/gpu/drm/i915/intel_fbdev.c +++ b/drivers/gpu/drm/i915/intel_fbdev.c @@ -332,24 +332,6 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, 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); if (!save_enabled) @@ -375,8 +357,18 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, continue; } + if (connector->force == DRM_FORCE_OFF) { + DRM_DEBUG_KMS("connector %s is disabled by user, skipping\n", + connector->name); + enabled[i] = false; + continue; + } + encoder = connector->encoder; if (!encoder || WARN_ON(!encoder->crtc)) { + if (connector->force > DRM_FORCE_OFF) + goto bail; + DRM_DEBUG_KMS("connector %s has no encoder or crtc, skipping\n", connector->name); enabled[i] = false; @@ -395,8 +387,7 @@ 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) { DRM_DEBUG_KMS("fallback: cloned configuration\n"); - fallback = true; - goto out; + goto bail; } } @@ -467,8 +458,8 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, fallback = true; } -out: if (fallback) { +bail: DRM_DEBUG_KMS("Not using firmware configuration\n"); memcpy(enabled, save_enabled, dev->mode_config.num_connector); kfree(save_enabled);