From: "Jouni Högander" <jouni.hogander@intel.com>
To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org
Cc: "Jouni Högander" <jouni.hogander@intel.com>
Subject: [PATCH 7/7] drm/i915/alpm: Dump out ALPM capability DPCD register
Date: Wed, 8 Apr 2026 17:00:59 +0300 [thread overview]
Message-ID: <20260408140059.252067-8-jouni.hogander@intel.com> (raw)
In-Reply-To: <20260408140059.252067-1-jouni.hogander@intel.com>
Add dumping out ALPM capability DPCD registers. This helps parsing dmesg
logs and tracing possible ALPM issues.
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
---
drivers/gpu/drm/i915/display/intel_dp.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 4955bd8b11d7..6906226d8a9d 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4768,6 +4768,8 @@ intel_edp_init_dpcd(struct intel_dp *intel_dp, struct intel_connector *connector
if (ret < 0)
return false;
+ drm_dbg_kms(display->drm, "ALPM DPCD: %02x\n", intel_dp->alpm_dpcd);
+
/*
* This has to be called after intel_dp->edp_dpcd is filled, PSR checks
* for SET_POWER_CAPABLE bit in intel_dp->edp_dpcd[1]
--
2.43.0
next prev parent reply other threads:[~2026-04-08 14:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-08 14:00 [PATCH 0/6] PSR/Panel Replay/ALPM logging improvements Jouni Högander
2026-04-08 14:00 ` [PATCH 1/7] drm/i915/psr: Improve PSR state information in crtc state dump Jouni Högander
2026-04-08 14:00 ` [PATCH 2/7] drm/i915/alpm: Dump out computed ALPM parameters " Jouni Högander
2026-04-08 14:00 ` [PATCH 3/7] drm/dp: Include PSR2 granularity registers into PSR capability size define Jouni Högander
2026-04-08 14:00 ` [PATCH 4/7] drm/i915/psr: Add new macro for accessing cached PSR DPCD registers Jouni Högander
2026-04-08 14:04 ` Jani Nikula
2026-04-08 14:00 ` [PATCH 5/7] drm/i915/psr: Read all PSR capability registers at once Jouni Högander
2026-04-08 14:00 ` [PATCH 6/7] drm/i915/psr: Dump out PSR and Panel Replay DPCD registers Jouni Högander
2026-04-08 14:00 ` Jouni Högander [this message]
2026-04-08 14:09 ` ✗ CI.checkpatch: warning for PSR/Panel Replay/ALPM logging improvements Patchwork
2026-04-08 14:10 ` ✗ CI.KUnit: failure " Patchwork
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