diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 60 |
1 files changed, 49 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index b1f73ac0f3fd..cc15447eff41 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -24,6 +24,7 @@ * Eric Anholt <eric@anholt.net> * */ +#include <drm/drm_dp_helper.h> #include "drmP.h" #include "drm.h" #include "i915_drm.h" @@ -413,6 +414,8 @@ static void parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb) { struct bdb_edp *edp; + struct edp_power_seq *edp_pps; + struct edp_link_params *edp_link_params; edp = find_section(bdb, BDB_EDP); if (!edp) { @@ -437,19 +440,54 @@ parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb) 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; + /* Get the eDP sequencing and link info */ + edp_pps = &edp->power_seqs[panel_type]; + edp_link_params = &edp->link_params[panel_type]; - 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.pps = *edp_pps; - dev_priv->edp.initialized = true; + dev_priv->edp.rate = edp_link_params->rate ? DP_LINK_BW_2_7 : + DP_LINK_BW_1_62; + switch (edp_link_params->lanes) { + case 0: + dev_priv->edp.lanes = 1; + break; + case 1: + dev_priv->edp.lanes = 2; + break; + case 3: + default: + dev_priv->edp.lanes = 4; + break; + } + switch (edp_link_params->preemphasis) { + case 0: + dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_0; + break; + case 1: + dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_3_5; + break; + case 2: + dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_6; + break; + case 3: + dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_9_5; + break; + } + switch (edp_link_params->vswing) { + case 0: + dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_400; + break; + case 1: + dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_600; + break; + case 2: + dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_800; + break; + case 3: + dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_1200; + break; + } } static void |