diff options
| author | Keith Packard <keithp@keithp.com> | 2011-11-02 13:03:47 -0700 |
|---|---|---|
| committer | Eugeni Dodonov <eugeni.dodonov@intel.com> | 2012-02-08 18:23:25 -0200 |
| commit | 41519430fd9ce6b04c4cbc22439466405f393d73 (patch) | |
| tree | ad771247926ebc0e025a5da7b29b283190187000 | |
| parent | 8661da068f7fbf195d1c7cb0667c366930301400 (diff) | |
drm/i915: Use DPCD value for max DP lanes.
The BIOS VBT value for an eDP panel has been shown to be incorrect on
one machine, and we haven't found any machines where the DPCD value
was wrong, so we'll use the DPCD value everywhere.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 23 |
1 files changed, 9 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index e7c0eac8100..8877583a3e4 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -155,16 +155,12 @@ intel_edp_link_config(struct intel_encoder *intel_encoder, static int intel_dp_max_lane_count(struct intel_dp *intel_dp) { - int max_lane_count = 4; - - if (intel_dp->dpcd[DP_DPCD_REV] >= 0x11) { - max_lane_count = intel_dp->dpcd[DP_MAX_LANE_COUNT] & 0x1f; - switch (max_lane_count) { - case 1: case 2: case 4: - break; - default: - max_lane_count = 4; - } + int max_lane_count = intel_dp->dpcd[DP_MAX_LANE_COUNT] & 0x1f; + switch (max_lane_count) { + case 1: case 2: case 4: + break; + default: + max_lane_count = 4; } return max_lane_count; } @@ -766,12 +762,11 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode, continue; intel_dp = enc_to_intel_dp(encoder); - if (intel_dp->base.type == INTEL_OUTPUT_DISPLAYPORT || is_pch_edp(intel_dp)) { + if (intel_dp->base.type == INTEL_OUTPUT_DISPLAYPORT || + intel_dp->base.type == INTEL_OUTPUT_EDP) + { lane_count = intel_dp->lane_count; break; - } else if (is_cpu_edp(intel_dp)) { - lane_count = dev_priv->edp.lanes; - break; } } |