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From: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org,
	dri-devel@lists.freedesktop.org
Cc: ville.syrjala@linux.intel.com, jouni.hogander@intel.com,
	animesh.manna@intel.com,
	Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Subject: [PATCH 08/23] drm/i915/dp: Account for AS_SDP guardband only when enabled
Date: Thu,  2 Apr 2026 13:34:08 +0530	[thread overview]
Message-ID: <20260402080425.548702-9-ankit.k.nautiyal@intel.com> (raw)
In-Reply-To: <20260402080425.548702-1-ankit.k.nautiyal@intel.com>

Currently the intel_dp_sdp_min_guardband() accounts for AS_SDP for all
platforms that support adaptive sync SDP even for configurations where
it cannot be enabled. Instead account for adaptive sync SDP guardband
only when it is enabled.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 49eeb35973a1..499850c2abcf 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -7374,7 +7374,6 @@ int intel_dp_get_lines_for_sdp(const struct intel_crtc_state *crtc_state, u32 ty
 int intel_dp_sdp_min_guardband(const struct intel_crtc_state *crtc_state,
 			       bool assume_all_enabled)
 {
-	struct intel_display *display = to_intel_display(crtc_state);
 	int sdp_guardband = 0;
 
 	if (assume_all_enabled ||
@@ -7389,8 +7388,8 @@ int intel_dp_sdp_min_guardband(const struct intel_crtc_state *crtc_state,
 		sdp_guardband = max(sdp_guardband,
 				    intel_dp_get_lines_for_sdp(crtc_state, DP_SDP_PPS));
 
-	if ((assume_all_enabled && HAS_AS_SDP(display)) ||
-	    crtc_state->infoframes.enable & intel_hdmi_infoframe_enable(DP_SDP_ADAPTIVE_SYNC))
+	if (crtc_state->infoframes.enable &
+	    intel_hdmi_infoframe_enable(DP_SDP_ADAPTIVE_SYNC))
 		sdp_guardband = max(sdp_guardband,
 				    intel_dp_get_lines_for_sdp(crtc_state, DP_SDP_ADAPTIVE_SYNC));
 
-- 
2.45.2


  parent reply	other threads:[~2026-04-02  8:19 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-02  8:04 [PATCH 00/23] Fix Adaptive Sync SDP for PR with Link ON + Auxless ALPM Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 01/23] drm/dp: Rename and relocate AS SDP payload field masks Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 02/23] drm/dp: Clean up DPRX feature enumeration macros Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 03/23] drm/dp: Add bits for AS SDP FAVT Payload Fields Parsing support Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 04/23] drm/dp: Add DPCD for configuring AS SDP for PR + VRR Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 05/23] drm/dp: Store coasting vtotal in struct drm_dp_as_sdp Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 06/23] drm/i915/dp: Fix readback for target_rr in Adaptive Sync SDP Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 07/23] drm/i915/vrr: Avoid vrr for PCON with HDMI2.1 sink Ankit Nautiyal
2026-04-02  8:04 ` Ankit Nautiyal [this message]
2026-04-02  8:04 ` [PATCH 09/23] drm/i915/dp: Add a helper to decide if AS SDP can be used Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 10/23] drm/i915/dp: Skip AS SDP for DP branch devices Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 11/23] drm/i915/dp: Use revision field of AS SDP data structure Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 12/23] drm/i915/dp: Include all relevant AS SDP fields in comparison Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 13/23] drm/i915/psr: Add helper to get Async Video timing support in PR active Ankit Nautiyal
2026-04-02 10:24   ` Ville Syrjälä
2026-04-02  8:04 ` [PATCH 14/23] drm/i915/dp: Add member to intel_dp to store AS SDP v2 support Ankit Nautiyal
2026-04-02 11:04   ` Ville Syrjälä
2026-04-02 12:50     ` Ville Syrjälä
2026-04-07  8:20       ` Nautiyal, Ankit K
2026-04-07 13:35         ` Nautiyal, Ankit K
2026-04-07 15:15           ` Ville Syrjälä
2026-04-02  8:04 ` [PATCH 15/23] drm/i915/dp: Allow AS SDP only if v2 is supported Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 16/23] drm/i915/psr: Write the PR config DPCDs in burst mode Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 17/23] drm/i915/display: Add helper for AS SDP transmission time selection Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 18/23] drm/i915/psr: Program Panel Replay CONFIG3 using AS SDP transmission time Ankit Nautiyal
2026-04-02 10:30   ` Ville Syrjälä
2026-04-02  8:04 ` [PATCH 19/23] drm/i915/dp: Set relevant Downspread Ctrl DPCD bits for PR + Auxless ALPM Ankit Nautiyal
2026-04-02 10:48   ` Ville Syrjälä
2026-04-07  8:51     ` Nautiyal, Ankit K
2026-04-07  9:06       ` Nautiyal, Ankit K
2026-04-02  8:04 ` [PATCH 20/23] drm/i915/dp: Program AS SDP DB[1:0] for PR with Link off Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 21/23] drm/i915/dp: Split AS SDP computation between compute_config and compute_config_late Ankit Nautiyal
2026-04-02  8:04 ` [PATCH 22/23] drm/i915/dp: Compute and include coasting vtotal for AS SDP Ankit Nautiyal
2026-04-02 11:10   ` Ville Syrjälä
2026-04-07 10:54     ` Nautiyal, Ankit K
2026-04-07 10:56       ` Nautiyal, Ankit K
2026-04-07 15:40         ` Ville Syrjälä
2026-04-02  8:04 ` [PATCH 23/23] drm/i915/dp: Always enable AS SDP if supported by source + sink Ankit Nautiyal

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