[PATCH v3 1/2] drm/i915/display: Skip state checker for AS SDP infoframe enable

[Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>]

Avoid full modeset by skipping infoframe.enable check when toggling
AS SDP while enabling VRR, preventing full modeset while pipe
config changes.

--v2:
- Add check for exclude_infoframe. (Ankit)
- Update commit message. (Ankit)

--v3:
- Optimise PIPE_CONF_CHECK for infoframes.enable. [Ankit]

Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index a6383ddde871..a50b0a008231 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -5388,6 +5388,7 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 	struct drm_i915_private *dev_priv = to_i915(current_config->uapi.crtc->dev);
 	struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
 	struct drm_printer p;
+	u32 exclude_infoframes = 0;
 	bool ret = true;
 
 	if (fastset)
@@ -5743,11 +5744,12 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 	PIPE_CONF_CHECK_I(min_voltage_level);
 
 	if (current_config->has_psr || pipe_config->has_psr)
-		PIPE_CONF_CHECK_X_WITH_MASK(infoframes.enable,
-					    ~intel_hdmi_infoframe_enable(DP_SDP_VSC));
-	else
-		PIPE_CONF_CHECK_X(infoframes.enable);
+		exclude_infoframes |= intel_hdmi_infoframe_enable(DP_SDP_VSC);
+
+	if (current_config->vrr.enable || pipe_config->vrr.enable)
+		exclude_infoframes |= intel_hdmi_infoframe_enable(DP_SDP_ADAPTIVE_SYNC);
 
+	PIPE_CONF_CHECK_X_WITH_MASK(infoframes.enable, ~exclude_infoframes);
 	PIPE_CONF_CHECK_X(infoframes.gcp);
 	PIPE_CONF_CHECK_INFOFRAME(avi);
 	PIPE_CONF_CHECK_INFOFRAME(spd);
-- 
2.48.1