diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.c | 55 |
1 files changed, 38 insertions, 17 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index bdc19b04b2c1..a2d91a499700 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -639,39 +639,60 @@ static int intel_dp_mst_get_modes(struct drm_connector *connector) return intel_dp_mst_get_ddc_modes(connector); } -static enum drm_mode_status -intel_dp_mst_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) +static int +intel_dp_mst_mode_valid_ctx(struct drm_connector *connector, + struct drm_display_mode *mode, + struct drm_modeset_acquire_ctx *ctx, + enum drm_mode_status *status) { struct drm_i915_private *dev_priv = to_i915(connector->dev); struct intel_connector *intel_connector = to_intel_connector(connector); struct intel_dp *intel_dp = intel_connector->mst_port; + struct drm_dp_mst_topology_mgr *mgr = &intel_dp->mst_mgr; + struct drm_dp_mst_port *port = intel_connector->port; + const int min_bpp = 18; int max_dotclk = to_i915(connector->dev)->max_dotclk_freq; int max_rate, mode_rate, max_lanes, max_link_clock; + int ret; - if (drm_connector_is_unregistered(connector)) - return MODE_ERROR; + if (drm_connector_is_unregistered(connector)) { + *status = MODE_ERROR; + return 0; + } - if (mode->flags & DRM_MODE_FLAG_DBLSCAN) - return MODE_NO_DBLESCAN; + if (mode->flags & DRM_MODE_FLAG_DBLSCAN) { + *status = MODE_NO_DBLESCAN; + return 0; + } max_link_clock = intel_dp_max_link_rate(intel_dp); max_lanes = intel_dp_max_lane_count(intel_dp); max_rate = intel_dp_max_data_rate(max_link_clock, max_lanes); - mode_rate = intel_dp_link_required(mode->clock, 18); + mode_rate = intel_dp_link_required(mode->clock, min_bpp); - /* TODO - validate mode against available PBN for link */ - if (mode->clock < 10000) - return MODE_CLOCK_LOW; + ret = drm_modeset_lock(&mgr->base.lock, ctx); + if (ret) + return ret; - if (mode->flags & DRM_MODE_FLAG_DBLCLK) - return MODE_H_ILLEGAL; + if (mode_rate > max_rate || mode->clock > max_dotclk || + drm_dp_calc_pbn_mode(mode->clock, min_bpp, false) > port->full_pbn) { + *status = MODE_CLOCK_HIGH; + return 0; + } + + if (mode->clock < 10000) { + *status = MODE_CLOCK_LOW; + return 0; + } - if (mode_rate > max_rate || mode->clock > max_dotclk) - return MODE_CLOCK_HIGH; + if (mode->flags & DRM_MODE_FLAG_DBLCLK) { + *status = MODE_H_ILLEGAL; + return 0; + } - return intel_mode_valid_max_plane_size(dev_priv, mode); + *status = intel_mode_valid_max_plane_size(dev_priv, mode); + return 0; } static struct drm_encoder *intel_mst_atomic_best_encoder(struct drm_connector *connector, @@ -700,7 +721,7 @@ intel_dp_mst_detect(struct drm_connector *connector, static const struct drm_connector_helper_funcs intel_dp_mst_connector_helper_funcs = { .get_modes = intel_dp_mst_get_modes, - .mode_valid = intel_dp_mst_mode_valid, + .mode_valid_ctx = intel_dp_mst_mode_valid_ctx, .atomic_best_encoder = intel_mst_atomic_best_encoder, .atomic_check = intel_dp_mst_atomic_check, .detect_ctx = intel_dp_mst_detect, |