diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lvds.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lvds.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index aa84832b0e1..b103c3b2bfe 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -844,6 +844,18 @@ static bool lvds_is_present_in_vbt(struct drm_device *dev, return false; } +static bool intel_lvds_supported(struct drm_device *dev) +{ + /* With the introduction of the PCH we gained a dedicated + * LVDS presence pin, use it. */ + if (HAS_PCH_SPLIT(dev)) + return true; + + /* Otherwise LVDS was only attached to mobile products, + * except for the inglorious 830gm */ + return IS_MOBILE(dev) && !IS_I830(dev); +} + /** * intel_lvds_init - setup LVDS connectors on this device * @dev: drm device @@ -865,6 +877,9 @@ bool intel_lvds_init(struct drm_device *dev) int pipe; u8 pin; + if (!intel_lvds_supported(dev)) + return false; + /* Skip init on machines we know falsely report LVDS */ if (dmi_check_system(intel_no_lvds)) return false; |