diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 2ec82a5c9f24..2d0001e7c26a 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -3516,6 +3516,31 @@ static void intel_dp_get_dsc_sink_cap(struct intel_dp *intel_dp) } } +static void intel_edp_mso_mode_fixup(struct intel_connector *connector, + struct drm_display_mode *mode) +{ + struct intel_dp *intel_dp = intel_attached_dp(connector); + struct drm_i915_private *i915 = to_i915(connector->base.dev); + int n = intel_dp->mso_link_count; + int overlap = intel_dp->mso_pixel_overlap; + + if (!mode || !n) + return; + + mode->hdisplay = (mode->hdisplay - overlap) * n; + mode->hsync_start = (mode->hsync_start - overlap) * n; + mode->hsync_end = (mode->hsync_end - overlap) * n; + mode->htotal = (mode->htotal - overlap) * n; + mode->clock *= n; + + drm_mode_set_name(mode); + + drm_dbg_kms(&i915->drm, + "[CONNECTOR:%d:%s] using generated MSO mode: ", + connector->base.base.id, connector->base.name); + drm_mode_debug_printmodeline(mode); +} + static void intel_edp_mso_init(struct intel_dp *intel_dp) { struct drm_i915_private *i915 = dp_to_i915(intel_dp); @@ -6493,6 +6518,10 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp, if (fixed_mode) downclock_mode = intel_dp_drrs_init(intel_connector, fixed_mode); + /* multiply the mode clock and horizontal timings for MSO */ + intel_edp_mso_mode_fixup(intel_connector, fixed_mode); + intel_edp_mso_mode_fixup(intel_connector, downclock_mode); + /* fallback to VBT if available for eDP */ if (!fixed_mode) fixed_mode = intel_panel_vbt_fixed_mode(intel_connector); |