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path: root/drivers/gpu/drm/i915/intel_bios.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.c')
-rw-r--r--drivers/gpu/drm/i915/intel_bios.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 4ca82a0..fc28e2b 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -111,6 +111,12 @@ parse_panel_data(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
panel_fixed_mode->clock = dvo_timing->clock * 10;
panel_fixed_mode->type = DRM_MODE_TYPE_PREFERRED;
+ /* Some VBTs have bogus h/vtotal values */
+ if (panel_fixed_mode->hsync_end > panel_fixed_mode->htotal)
+ panel_fixed_mode->htotal = panel_fixed_mode->hsync_end + 1;
+ if (panel_fixed_mode->vsync_end > panel_fixed_mode->vtotal)
+ panel_fixed_mode->vtotal = panel_fixed_mode->vsync_end + 1;
+
drm_mode_set_name(panel_fixed_mode);
dev_priv->vbt_mode = panel_fixed_mode;
@@ -135,6 +141,14 @@ parse_general_features(struct drm_i915_private *dev_priv,
if (general) {
dev_priv->int_tv_support = general->int_tv_support;
dev_priv->int_crt_support = general->int_crt_support;
+ dev_priv->lvds_use_ssc = general->enable_ssc;
+
+ if (dev_priv->lvds_use_ssc) {
+ if (IS_I855(dev_priv->dev))
+ dev_priv->lvds_ssc_freq = general->ssc_freq ? 66 : 48;
+ else
+ dev_priv->lvds_ssc_freq = general->ssc_freq ? 100 : 96;
+ }
}
}
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