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* [Intel-gfx] [PATCH v3] drm/i915/display/vrr: Reset VRR capable property on a long hpd
@ 2022-02-15 20:26 Manasi Navare
  2022-02-17  1:43 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/display/vrr: Reset VRR capable property on a long hpd (rev3) Patchwork
                   ` (2 more replies)
  0 siblings, 3 replies; 6+ messages in thread
From: Manasi Navare @ 2022-02-15 20:26 UTC (permalink / raw)
  To: intel-gfx; +Cc: Jani Nikula

With some VRR panels, user can turn VRR ON/OFF on the fly from the panel settings.
When VRR is turned OFF ,sends a long HPD to the driver clearing the Ignore MSA bit
in the DPCD. Currently the driver parses that onevery HPD but fails to reset
the corresponding VRR Capable Connector property.
Hence the userspace still sees this as VRR Capable panel which is incorrect.

Fix this by explicitly resetting the connector property.

v2: Reset vrr capable if status == connector_disconnected
v3: Use i915 and use bool vrr_capable (Jani Nikula)
v4: Move vrr_capable to after update modes call (Jani N)
Remove the redundant comment (Jan N)

Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 1046e7fe310a..929e9b6febf1 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4455,6 +4455,12 @@ intel_dp_detect(struct drm_connector *connector,
 		memset(&intel_dp->compliance, 0, sizeof(intel_dp->compliance));
 		memset(intel_dp->dsc_dpcd, 0, sizeof(intel_dp->dsc_dpcd));
 
+		/* Reset VRR Capable property */
+		drm_dbg_kms(&dev_priv->drm, "[CONNECTOR:%d:%s] VRR capable: FALSE\n",
+			    connector->base.id, connector->name);
+		drm_connector_set_vrr_capable_property(connector,
+						       false);
+
 		if (intel_dp->is_mst) {
 			drm_dbg_kms(&dev_priv->drm,
 				    "MST device may have disappeared %d vs %d\n",
@@ -4569,15 +4575,18 @@ static int intel_dp_get_modes(struct drm_connector *connector)
 {
 	struct intel_connector *intel_connector = to_intel_connector(connector);
 	struct edid *edid;
+	struct drm_i915_private *i915 = to_i915(connector->dev);
 	int num_modes = 0;
 
 	edid = intel_connector->detect_edid;
 	if (edid) {
-		num_modes = intel_connector_update_modes(connector, edid);
+		bool vrr_capable;
 
-		if (intel_vrr_is_capable(connector))
-			drm_connector_set_vrr_capable_property(connector,
-							       true);
+		num_modes = intel_connector_update_modes(connector, edid);
+		vrr_capable = intel_vrr_is_capable(connector);
+		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] VRR capable: %s\n",
+			    connector->base.id, connector->name, yesno(vrr_capable));
+		drm_connector_set_vrr_capable_property(connector, vrr_capable);
 	}
 
 	/* Also add fixed mode, which may or may not be present in EDID */
-- 
2.19.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-02-22 20:07 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2022-02-15 20:26 [Intel-gfx] [PATCH v3] drm/i915/display/vrr: Reset VRR capable property on a long hpd Manasi Navare
2022-02-17  1:43 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/display/vrr: Reset VRR capable property on a long hpd (rev3) Patchwork
2022-02-17  2:13 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
2022-02-17 22:01 ` [Intel-gfx] [PATCH v3] drm/i915/display/vrr: Reset VRR capable property on a long hpd Navare, Manasi
2022-02-18  8:36   ` Jani Nikula
2022-02-22 20:07     ` Navare, Manasi

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