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drm/i915: Add eDP support on IGDNG mobile chip

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This adds embedded DisplayPort support on next mobile chip which
aims to replace origin LVDS port. VBT's driver feature block has
been used to determine the type of current internal panel for eDP
or LVDS.

Currently no panel fitting support for eDP and backlight control
would be added in future.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Zhenyu Wang
2009-07-24 01:00:32 +08:00
committed by Eric Anholt
parent 5eb08b69f5
commit 32f9d658ae
8 changed files with 476 additions and 176 deletions
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21
drivers/gpu/drm/i915/intel_bios.c
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@@ -296,6 +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
@@ -346,6 +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;