From 32f9d658aee5be09ebdd28fc730630e61d0b46db Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Fri, 24 Jul 2009 01:00:32 +0800 Subject: drm/i915: Add eDP support on IGDNG mobile chip 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 Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_bios.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'drivers/gpu/drm/i915/intel_bios.c') diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 5c7a62a96ae7..300aee3296c2 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -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; -- cgit v1.2.1