For normal connector detect, there's really no point in trying dual mode
detect if the connector is disconnected. We can simplify the detect
sequence by skipping it. Since intel_hdmi_dp_dual_mode_detect() is only
called when EDID is present, we can drop the has_edid parameter.
The functional effect is speeding up disconnected connector detection
ever so slightly, and, combined with firmware EDID, also stop logging
about assuming dual mode adaptor.
It's a bit subtle, but this will also skip dual mode detect if the
connector is force connected and a) there's no EDID of any kind, normal
or override/firmare or b) there's EDID but it does not indicate
digital. These are corner cases no matter what, and arguably forcing
should not be limited by dual mode detect.
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_hdmi.c | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index 93519fb23d9d..a332eaac86cd 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2355,7 +2355,7 @@ intel_hdmi_unset_edid(struct drm_connector *connector)
}
static void
-intel_hdmi_dp_dual_mode_detect(struct drm_connector *connector, bool has_edid)
+intel_hdmi_dp_dual_mode_detect(struct drm_connector *connector)
{
struct drm_i915_private *dev_priv = to_i915(connector->dev);
struct intel_hdmi *hdmi = intel_attached_hdmi(to_intel_connector(connector));
@@ -2371,16 +2371,13 @@ intel_hdmi_dp_dual_mode_detect(struct drm_connector *connector, bool has_edid)
* CONFIG1 pin, but no such luck on our hardware.
*
* The only method left to us is to check the VBT to see
- * if the port is a dual mode capable DP port. But let's
- * only do that when we sucesfully read the EDID, to avoid
- * confusing log messages about DP dual mode adaptors when
- * there's nothing connected to the port.
+ * if the port is a dual mode capable DP port.
*/
if (type == DRM_DP_DUAL_MODE_UNKNOWN) {
/* An overridden EDID imply that we want this port for testing.
* Make sure not to set limits for that port.
*/
- if (has_edid && !connector->override_edid &&
+ if (!connector->override_edid &&
intel_bios_is_port_dp_dual_mode(dev_priv, port)) {
drm_dbg_kms(&dev_priv->drm,
"Assuming DP dual mode adaptor presence based on VBT\n");
@@ -2435,18 +2432,18 @@ intel_hdmi_set_edid(struct drm_connector *connector)
intel_gmbus_force_bit(i2c, false);
}
- intel_hdmi_dp_dual_mode_detect(connector, edid != NULL);
-
- intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS, wakeref);
-
to_intel_connector(connector)->detect_edid = edid;
if (edid && edid->input & DRM_EDID_INPUT_DIGITAL) {
intel_hdmi->has_audio = drm_detect_monitor_audio(edid);
intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
+ intel_hdmi_dp_dual_mode_detect(connector);
+
connected = true;
}
+ intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS, wakeref);
+
cec_notifier_set_phys_addr_from_edid(intel_hdmi->cec_notifier, edid);
return connected;
--
2.34.1
