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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, jani.nikula@linux.intel.com,
	Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Subject: [PATCH 4/9] drm/dp: Add DPCD for configuring AS SDP for PR + VRR
Date: Tue, 28 Apr 2026 13:14:52 +0530	[thread overview]
Message-ID: <20260428074457.3566918-5-ankit.k.nautiyal@intel.com> (raw)
In-Reply-To: <20260428074457.3566918-1-ankit.k.nautiyal@intel.com>

Add additional DPCDs required to be configured to support VRR with Panel
Replay. These DPCDs are specifically required for configuring Adaptive Sync
SDP and are introduced in DP v2.1.

v2:
 - Correct the shift for the bits. (Ville)
 - Add DP_PR_ prefix for the PR-related fields.
v3:
 - Use macro values in their shifted form to match the convention. (Ville)
v4:
 - Add macro for the mask. (Ville)

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 include/drm/display/drm_dp.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index 8d172863eba3..829e4d98d61c 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -718,6 +718,12 @@
 #define DP_EXTENDED_DPRX_SLEEP_WAKE_TIMEOUT_GRANT	    0x119   /* 1.4a */
 # define DP_DPRX_SLEEP_WAKE_TIMEOUT_PERIOD_GRANTED	    (1 << 0)
 
+#define PANEL_REPLAY_CONFIG3			0x11a /* DP 2.1 */
+# define DP_PR_AS_SDP_SETUP_TIME_MASK		(3 << 6)
+# define DP_PR_AS_SDP_SETUP_TIME_T1		(0 << 6)
+# define DP_PR_AS_SDP_SETUP_TIME_DYNAMIC	(1 << 6) /* DP 2.1 Table 2-227 */
+# define DP_PR_AS_SDP_SETUP_TIME_T2		(2 << 6)
+
 #define DP_FEC_CONFIGURATION		    0x120    /* 1.4 */
 # define DP_FEC_READY			    (1 << 0)
 # define DP_FEC_ERR_COUNT_SEL_MASK	    (7 << 1)
-- 
2.45.2


  parent reply	other threads:[~2026-04-28  7:59 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-28  7:44 [PATCH 0/9] AS SDP cleanups and additions for Panel Replay + VRR Ankit Nautiyal
2026-04-28  7:44 ` [PATCH 1/9] drm/dp: Rename and relocate AS SDP payload field masks Ankit Nautiyal
2026-04-28  7:44 ` [PATCH 2/9] drm/dp: Clean up DPRX feature enumeration macros Ankit Nautiyal
2026-04-28  7:44 ` [PATCH 3/9] drm/dp: Add bits for AS SDP FAVT Payload Fields Parsing support Ankit Nautiyal
2026-04-28  7:44 ` Ankit Nautiyal [this message]
2026-04-28  7:44 ` [PATCH 5/9] drm/dp: Refactor AS SDP logging to use space-separated field names Ankit Nautiyal
2026-05-08 14:36   ` Ville Syrjälä
2026-04-28  7:44 ` [PATCH 6/9] drm/dp: Store coasting vtotal in struct drm_dp_as_sdp Ankit Nautiyal
2026-04-28  7:44 ` [PATCH 7/9] drm/dp: Add a helper to get the SDP type as a string Ankit Nautiyal
2026-05-08 14:38   ` Ville Syrjälä
2026-04-28  7:44 ` [PATCH 8/9] drm/dp: Add target_rr_divider field in AS SDP logging Ankit Nautiyal
2026-04-28  7:44 ` [PATCH 9/9] drm/dp: Use drm_printf_indent for DP " Ankit Nautiyal
2026-04-28 10:17   ` Jani Nikula
2026-04-28  8:31 ` ✓ CI.KUnit: success for AS SDP cleanups and additions for Panel Replay + VRR (rev2) Patchwork
2026-04-28  9:28 ` ✓ Xe.CI.BAT: " Patchwork
2026-04-28 17:34 ` ✗ Xe.CI.FULL: failure " Patchwork
2026-05-11 14:21 ` [PATCH 0/9] AS SDP cleanups and additions for Panel Replay + VRR Nautiyal, Ankit K

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