drm/i915: Fix render reclock availability detection.

If the device didn't support EDP, we would bail out too soon.

Signed-off-by: Andy Lutomirski <luto@mit.edu>
[anholt: Pulled this patch out of the patch for adding quirks to
enable reclocking.]
Signed-off-by: Eric Anholt <eric@anholt.net>

1 files changed, 6 insertions, 8 deletions

diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 4337414846b6..96cd256e60e6 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -351,20 +351,18 @@ parse_driver_features(struct drm_i915_private *dev_priv,
         struct drm_device *dev = dev_priv->dev;
         struct bdb_driver_features *driver;
 
-        /* set default for chips without eDP */
-        if (!SUPPORTS_EDP(dev)) {
-                dev_priv->edp_support = 0;
-                return;
-        }
-
         driver = find_section(bdb, BDB_DRIVER_FEATURES);
         if (!driver)
                 return;
 
-        if (driver->lvds_config == BDB_DRIVER_FEATURE_EDP)
+        if (driver && SUPPORTS_EDP(dev) &&
+            driver->lvds_config == BDB_DRIVER_FEATURE_EDP) {
                 dev_priv->edp_support = 1;
+        } else {
+                dev_priv->edp_support = 0;
+        }
 
-        if (driver->dual_frequency)
+        if (driver && driver->dual_frequency)
                 dev_priv->render_reclock_avail = true;
 }