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From: Animesh Manna <animesh.manna@intel.com>
To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org,
	dri-devel@lists.freedesktop.org
Cc: jouni.hogander@intel.com, jani.nikula@intel.com,
	suraj.kandpal@intel.com, Animesh Manna <animesh.manna@intel.com>
Subject: [PATCH v6 01/18] drm/i915/alpm: Add DPCD definition for DP2.1 ALPM capability
Date: Tue, 15 Sep 2026 23:34:32 +0530	[thread overview]
Message-ID: <20260915180449.277933-2-animesh.manna@intel.com> (raw)
In-Reply-To: <20260915180449.277933-1-animesh.manna@intel.com>

Add required DPCD address which will be needed to enable DP2.1 ALPM.

Cc: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
---
 include/drm/display/drm_dp.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index e63c7f075f54..9f1e9ef5cdb6 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -1541,6 +1541,8 @@
 /* See DP_128B132B_SUPPORTED_LINK_RATES for values */
 #define DP_PHY_REPEATER_128B132B_RATES			    0xf0007 /* 2.0 */
 #define DP_PHY_REPEATER_EQ_DONE                             0xf0008 /* 2.0 E11 */
+#define DP_LTTPR_ALPM_CAPABILITIES                          0xf0009 /* 2.1 */
+#define DP_TOTAL_LTTPR_CNT                                  0xf000a /* 2.1 */
 
 enum drm_dp_phy {
 	DP_PHY_DPRX,
@@ -1720,7 +1722,7 @@ enum drm_dp_phy {
 #define DP_DSC_BRANCH_CAP_SIZE		3
 #define EDP_PSR_RECEIVER_CAP_SIZE	2
 #define EDP_DISPLAY_CTL_CAP_SIZE	5
-#define DP_LTTPR_COMMON_CAP_SIZE	8
+#define DP_LTTPR_COMMON_CAP_SIZE	10
 #define DP_LTTPR_PHY_CAP_SIZE		3
 
 #define DP_SDP_AUDIO_TIMESTAMP		0x01
-- 
2.29.0


  reply	other threads:[~2026-09-15 18:39 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-15 18:04 [PATCH v6 00/18] Enable DP2.1 alpm Animesh Manna
2026-09-15 18:04 ` Animesh Manna [this message]
2026-09-15 18:04 ` [PATCH v6 02/18] drm/i915/alpm: Move alpm sink capability readout into a separate function Animesh Manna
2026-09-28  9:58   ` Hogander, Jouni
2026-09-28 10:02     ` Hogander, Jouni
2026-09-30  8:04   ` Jani Nikula
2026-10-01 11:21     ` Manna, Animesh
2026-09-15 18:04 ` [PATCH v6 03/18] drm/i915/alpm: alpm_init() for DP2.1 Animesh Manna
2026-09-15 18:57   ` sashiko-bot
2026-09-28 10:44   ` Hogander, Jouni
2026-09-15 18:04 ` [PATCH v6 04/18] drm/i915/alpm: Enable debugfs " Animesh Manna
2026-09-28 11:22   ` Hogander, Jouni
2026-10-01 11:32     ` Manna, Animesh
2026-10-08  4:40       ` Hogander, Jouni
2026-09-15 18:04 ` [PATCH v6 05/18] drm/i915/alpm: Refactor Auxless wake time calculation Animesh Manna
2026-09-28 11:49   ` Hogander, Jouni
2026-09-15 18:04 ` [PATCH v6 06/18] drm/i915/alpm: Auxless wake time calculation for Xe3p Animesh Manna
2026-09-29  5:34   ` Hogander, Jouni
2026-09-29  5:38   ` Hogander, Jouni
2026-09-15 18:04 ` [PATCH v6 07/18] drm/i915/alpm: Modify AUX_LESS_WAKE_TIME bitfield for xe3lpd Animesh Manna
2026-09-15 18:46   ` sashiko-bot
2026-09-29  6:20   ` Hogander, Jouni
2026-09-15 18:04 ` [PATCH v6 08/18] drm/i915/alpm: table based establishment period Animesh Manna
2026-09-29  7:00   ` Hogander, Jouni
2026-09-29  7:31     ` Hogander, Jouni
2026-10-01 11:40     ` Manna, Animesh
2026-09-15 18:04 ` [PATCH v6 09/18] drm/i915/alpm: Half LFPS cycle calculation Animesh Manna
2026-09-15 18:53   ` sashiko-bot
2026-09-29  9:57   ` Hogander, Jouni
2026-09-15 18:04 ` [PATCH v6 10/18] drm/i915/alpm: Modify LFPS cycle count for DP ALPM Animesh Manna
2026-10-01  6:22   ` Hogander, Jouni
2026-10-01 12:10     ` Hogander, Jouni
2026-10-01 12:11       ` Hogander, Jouni
2026-09-15 18:04 ` [PATCH v6 11/18] drm/i915/alpm: Modify LFPS_CYCLE_COUNT bitfield for xe3lpd Animesh Manna
2026-09-15 18:04 ` [PATCH v6 12/18] drm/i915/alpm: Program LTTPR count for DP 2.1 ALPM Animesh Manna
2026-09-15 18:56   ` sashiko-bot
2026-09-30  8:16   ` Jani Nikula
2026-10-02  4:41   ` Hogander, Jouni
2026-09-15 18:04 ` [PATCH v6 13/18] drm/i915/alpm: Enable MAC Transmitting LFPS for LT PHY Animesh Manna
2026-10-02  5:04   ` Hogander, Jouni
2026-09-15 18:04 ` [PATCH v6 14/18] drm/i915/alpm: Replace is_edp() with alpm_is_possible() Animesh Manna
2026-09-15 18:57   ` sashiko-bot
2026-10-02  6:41   ` Hogander, Jouni
2026-09-15 18:04 ` [PATCH v6 15/18] drm/i915/alpm: Introduce has_alpm to decouple from pr/psr2/lobf Animesh Manna
2026-09-15 19:01   ` sashiko-bot
2026-10-02  8:37   ` Hogander, Jouni
2026-09-15 18:04 ` [PATCH v6 16/18] drm/i915/alpm: Compute and program switch to active latency Animesh Manna
2026-09-15 18:55   ` sashiko-bot
2026-10-02  9:00   ` Hogander, Jouni
2026-09-15 18:04 ` [PATCH v6 17/18] drm/i915/alpm: Program zero-based LFPS half cycle duration Animesh Manna
2026-09-15 19:02   ` sashiko-bot
2026-10-02  9:08   ` Hogander, Jouni
2026-09-15 18:04 ` [PATCH v6 18/18] drm/i915/alpm: Disallow ALPM for UHBR link rate Animesh Manna
2026-09-15 19:01   ` sashiko-bot
2026-10-02 11:33   ` Hogander, Jouni
2026-09-15 21:11 ` ✓ i915.CI.BAT: success for Enable DP2.1 alpm (rev6) Patchwork
2026-09-16  8:14 ` ✗ i915.CI.Full: failure " Patchwork

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