diff options
Diffstat (limited to 'drivers/gpu/drm/gma500/oaktrail_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/oaktrail_hdmi.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/gma500/oaktrail_hdmi.c b/drivers/gpu/drm/gma500/oaktrail_hdmi.c index 36878a60080d..025d30970cc0 100644 --- a/drivers/gpu/drm/gma500/oaktrail_hdmi.c +++ b/drivers/gpu/drm/gma500/oaktrail_hdmi.c @@ -506,6 +506,7 @@ int oaktrail_crtc_hdmi_mode_set(struct drm_crtc *crtc, static int oaktrail_hdmi_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { + struct drm_psb_private *dev_priv = connector->dev->dev_private; if (mode->clock > 165000) return MODE_CLOCK_HIGH; if (mode->clock < 20000) @@ -514,6 +515,11 @@ static int oaktrail_hdmi_mode_valid(struct drm_connector *connector, if (mode->flags & DRM_MODE_FLAG_DBLSCAN) return MODE_NO_DBLESCAN; + /* We assume worst case scenario of 32 bpp here, since we don't know */ + if ((ALIGN(mode->hdisplay * 4, 64) * mode->vdisplay) > + dev_priv->vram_stolen_size) + return MODE_MEM; + return MODE_OK; } |