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drm/i915: Use connector_type for printing in intel_connector_info, v2.

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Instead of looking at encoder->type, which may be set to UNKNOWN,
use connector->connector_type. Info cannot be printed for MST
connectors which may have a NULL encoder, return early in that case.

Changes since v1:
- Whitelist encoder types for HDMI and LVDS.
- Fix oops on MST.
- Do not list encoder types for eDP/DP, they're always valid.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/7cf34026-392d-01ec-e79b-e91919d1d783@linux.intel.com
This commit is contained in:
Maarten Lankhorst 2016-06-21 12:00:38 +02:00
parent 26c17cf65c
commit ee648a74db
1 changed files with 19 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/gpu/drm/i915/i915_debugfs.c
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@ -2989,14 +2989,26 @@ static void intel_connector_info(struct seq_file *m,
seq_printf(m, "\tCEA rev: %d\n",
connector->display_info.cea_rev);
}
if (intel_encoder) {
if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT ||
intel_encoder->type == INTEL_OUTPUT_EDP)
intel_dp_info(m, intel_connector);
else if (intel_encoder->type == INTEL_OUTPUT_HDMI)
intel_hdmi_info(m, intel_connector);
else if (intel_encoder->type == INTEL_OUTPUT_LVDS)
if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
return;
switch (connector->connector_type) {
case DRM_MODE_CONNECTOR_DisplayPort:
case DRM_MODE_CONNECTOR_eDP:
intel_dp_info(m, intel_connector);
break;
case DRM_MODE_CONNECTOR_LVDS:
if (intel_encoder->type == INTEL_OUTPUT_LVDS)
intel_lvds_info(m, intel_connector);
break;
case DRM_MODE_CONNECTOR_HDMIA:
if (intel_encoder->type == INTEL_OUTPUT_HDMI ||
intel_encoder->type == INTEL_OUTPUT_UNKNOWN)
intel_hdmi_info(m, intel_connector);
break;
default:
break;
}
seq_printf(m, "\tmodes:\n");