diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2010-09-24 13:24:28 +0400 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-09-24 17:22:11 +0400 |
| commit | 5ceb0f9bb7bde101d8b07cb803002591dcb8c804 (patch) | |
| tree | 018ff025a3f5de220ead3b53254c397825be1de3 /drivers/gpu/drm/i915/intel_bios.c | |
| parent | 270eea0fd71ae95654606ff7448f195fa22d12c5 (diff) | |
| download | linux-5ceb0f9bb7bde101d8b07cb803002591dcb8c804.tar.xz | |
drm/i915: Parse the eDP link configuration from the vBIOS
First step, lets have a look at the values for troublesome panels and
see if they may be used to improve our link training.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 41 |
1 files changed, 27 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 123e31d5a80b..42a7a5b33a0a 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -401,14 +401,11 @@ parse_driver_features(struct drm_i915_private *dev_priv, if (!driver) return; - if (driver && SUPPORTS_EDP(dev) && - driver->lvds_config == BDB_DRIVER_FEATURE_EDP) { - dev_priv->edp_support = 1; - } else { - dev_priv->edp_support = 0; - } + if (SUPPORTS_EDP(dev) && + driver->lvds_config == BDB_DRIVER_FEATURE_EDP) + dev_priv->edp.support = 1; - if (driver && driver->dual_frequency) + if (driver->dual_frequency) dev_priv->render_reclock_avail = true; } @@ -417,28 +414,44 @@ parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb) { struct bdb_edp *edp; + dev_priv->edp.bpp = 18; + edp = find_section(bdb, BDB_EDP); if (!edp) { - if (SUPPORTS_EDP(dev_priv->dev) && dev_priv->edp_support) { + if (SUPPORTS_EDP(dev_priv->dev) && dev_priv->edp.support) { DRM_DEBUG_KMS("No eDP BDB found but eDP panel " - "supported, assume 18bpp panel color " - "depth.\n"); - dev_priv->edp_bpp = 18; + "supported, assume %dbpp panel color " + "depth.\n", + dev_priv->edp.bpp); } return; } switch ((edp->color_depth >> (panel_type * 2)) & 3) { case EDP_18BPP: - dev_priv->edp_bpp = 18; + dev_priv->edp.bpp = 18; break; case EDP_24BPP: - dev_priv->edp_bpp = 24; + dev_priv->edp.bpp = 24; break; case EDP_30BPP: - dev_priv->edp_bpp = 30; + dev_priv->edp.bpp = 30; break; } + + dev_priv->edp.rate = edp->link_params[panel_type].rate; + dev_priv->edp.lanes = edp->link_params[panel_type].lanes; + dev_priv->edp.preemphasis = edp->link_params[panel_type].preemphasis; + dev_priv->edp.vswing = edp->link_params[panel_type].vswing; + + DRM_DEBUG_KMS("eDP vBIOS settings: bpp=%d, rate=%d, lanes=%d, preemphasis=%d, vswing=%d\n", + dev_priv->edp.bpp, + dev_priv->edp.rate, + dev_priv->edp.lanes, + dev_priv->edp.preemphasis, + dev_priv->edp.vswing); + + dev_priv->edp.initialized = true; } static void |