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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.c54
1 files changed, 48 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index cdd126d..300aee3 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -99,9 +99,11 @@ parse_lfp_panel_data(struct drm_i915_private *dev_priv,
{
struct bdb_lvds_options *lvds_options;
struct bdb_lvds_lfp_data *lvds_lfp_data;
+ struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs;
struct bdb_lvds_lfp_data_entry *entry;
struct lvds_dvo_timing *dvo_timing;
struct drm_display_mode *panel_fixed_mode;
+ int lfp_data_size, dvo_timing_offset;
/* Defaults if we can't find VBT info */
dev_priv->lvds_dither = 0;
@@ -119,10 +121,27 @@ parse_lfp_panel_data(struct drm_i915_private *dev_priv,
if (!lvds_lfp_data)
return;
+ lvds_lfp_data_ptrs = find_section(bdb, BDB_LVDS_LFP_DATA_PTRS);
+ if (!lvds_lfp_data_ptrs)
+ return;
+
dev_priv->lvds_vbt = 1;
- entry = &lvds_lfp_data->data[lvds_options->panel_type];
- dvo_timing = &entry->dvo_timing;
+ lfp_data_size = lvds_lfp_data_ptrs->ptr[1].dvo_timing_offset -
+ lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset;
+ entry = (struct bdb_lvds_lfp_data_entry *)
+ ((uint8_t *)lvds_lfp_data->data + (lfp_data_size *
+ lvds_options->panel_type));
+ dvo_timing_offset = lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset -
+ lvds_lfp_data_ptrs->ptr[0].fp_timing_offset;
+
+ /*
+ * the size of fp_timing varies on the different platform.
+ * So calculate the DVO timing relative offset in LVDS data
+ * entry to get the DVO timing entry
+ */
+ dvo_timing = (struct lvds_dvo_timing *)
+ ((unsigned char *)entry + dvo_timing_offset);
panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL);
@@ -185,10 +204,12 @@ parse_general_features(struct drm_i915_private *dev_priv,
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;
+ if (IS_I85X(dev_priv->dev))
+ dev_priv->lvds_ssc_freq =
+ general->ssc_freq ? 66 : 48;
+ else
+ dev_priv->lvds_ssc_freq =
+ general->ssc_freq ? 100 : 96;
}
}
}
@@ -275,6 +296,25 @@ parse_sdvo_device_mapping(struct drm_i915_private *dev_priv,
}
return;
}
+
+static void
+parse_driver_features(struct drm_i915_private *dev_priv,
+ struct bdb_header *bdb)
+{
+ 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 && driver->lvds_config == BDB_DRIVER_FEATURE_EDP)
+ dev_priv->edp_support = 1;
+}
+
/**
* intel_init_bios - initialize VBIOS settings & find VBT
* @dev: DRM device
@@ -325,6 +365,8 @@ intel_init_bios(struct drm_device *dev)
parse_lfp_panel_data(dev_priv, bdb);
parse_sdvo_panel_data(dev_priv, bdb);
parse_sdvo_device_mapping(dev_priv, bdb);
+ parse_driver_features(dev_priv, bdb);
+
pci_unmap_rom(pdev, bios);
return 0;
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