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drm/i915: honor forced connector modes v2

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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.

v2: don't deref connector state for disabled connectors (Jesse)

Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Jesse Barnes 2014-02-20 12:28:07 -08:00 committed by Daniel Vetter
parent 1af8452f16
commit ef34ab894e
1 changed files with 18 additions and 0 deletions
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18
drivers/gpu/drm/i915/intel_fbdev.c
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@ -291,6 +291,24 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper,
bool *save_enabled;
bool any_enabled = false;
/*
* 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)