Merge branch 'classmate' into release

[safe/jmp/linux-2.6] / drivers / gpu / drm / radeon / radeon_connectors.c

diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 8da06e1..2016156 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -208,6 +208,18 @@ static struct drm_display_mode *radeon_fp_native_mode(struct drm_encoder *encode
                drm_mode_set_name(mode);
 
                DRM_DEBUG("Adding native panel mode %s\n", mode->name);
+       } else if (native_mode->hdisplay != 0 &&
+                  native_mode->vdisplay != 0) {
+               /* mac laptops without an edid */
+               /* Note that this is not necessarily the exact panel mode,
+                * but an approximation based on the cvt formula.  For these
+                * systems we should ideally read the mode info out of the
+                * registers or add a mode table, but this works and is much
+                * simpler.
+                */
+               mode = drm_cvt_mode(dev, native_mode->hdisplay, native_mode->vdisplay, 60, true, false, false);
+               mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
+               DRM_DEBUG("Adding cvt approximation of native panel mode %s\n", mode->name);
        }
        return mode;
 }