[Intel-gfx] [PATCH v4 02/18] drm/i915/display/dp: Attach and set drm connector VRR property

[Manasi Navare <manasi.d.navare@intel.com>]

From: Aditya Swarup <aditya.swarup@intel.com>

This function sets the VRR property for connector based
on the platform support, EDID monitor range and DP sink
DPCD capability of outputing video without msa
timing information.

v8:
* Use HAS_VRR, remove drm_conn declaration (Jani N)
* Fix typos in Comment (Jani N)
v7:
* Move the helper to separate file (Manasi)
v6:
* Remove unset of prop
v5:
* Fix the vrr prop not being set in kernel (Manasi)
* Unset the prop on connector disconnect (Manasi)
v4:
* Rebase (Mansi)
v3:
* intel_dp_is_vrr_capable can be used for debugfs, make it
non static (Manasi)
v2:
* Just set this in intel_dp_get_modes instead of new hook (Jani)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Aditya Swarup <aditya.swarup@intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c  | 8 ++++++++
 drivers/gpu/drm/i915/display/intel_vrr.c | 4 ++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 0433b6394137..dd093ae5b8bb 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -62,6 +62,7 @@
 #include "intel_sideband.h"
 #include "intel_tc.h"
 #include "intel_vdsc.h"
+#include "intel_vrr.h"
 
 #define DP_DPRX_ESI_LEN 14
 
@@ -7235,6 +7236,10 @@ static int intel_dp_get_modes(struct drm_connector *connector)
 	edid = intel_connector->detect_edid;
 	if (edid) {
 		int ret = intel_connector_update_modes(connector, edid);
+
+		if (intel_vrr_is_capable(connector))
+			drm_connector_set_vrr_capable_property(connector,
+							       true);
 		if (ret)
 			return ret;
 	}
@@ -7719,6 +7724,9 @@ intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connect
 		connector->state->scaling_mode = DRM_MODE_SCALE_ASPECT;
 
 	}
+
+	if (HAS_VRR(dev_priv))
+		drm_connector_attach_vrr_capable_property(connector);
 }
 
 static void intel_dp_init_panel_power_timestamps(struct intel_dp *intel_dp)
diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c
index 8a427c152341..869e41aa8396 100644
--- a/drivers/gpu/drm/i915/display/intel_vrr.c
+++ b/drivers/gpu/drm/i915/display/intel_vrr.c
@@ -20,10 +20,10 @@ bool intel_vrr_is_capable(struct drm_connector *connector)
 
 	intel_dp = intel_attached_dp(to_intel_connector(connector));
 	/*
-	 * DP Sink is capable of Variable refresh video timings if
+	 * DP Sink is capable of VRR video timings if
 	 * Ignore MSA bit is set in DPCD.
 	 * EDID monitor range also should be atleast 10 for reasonable
-	 * Adaptive sync/ VRR end user experience.
+	 * Adaptive Sync or Variable Refresh Rate end user experience.
 	 */
 	return HAS_VRR(i915) &&
 		drm_dp_sink_can_do_video_without_timing_msa(intel_dp->dpcd) &&
-- 
2.19.1

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