From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E88A5105D9B9 for ; Wed, 8 Apr 2026 14:01:56 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7B1F710E680; Wed, 8 Apr 2026 14:01:56 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="PtNH9wdF"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0F6A710E67E; Wed, 8 Apr 2026 14:01:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1775656915; x=1807192915; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=9n72ZPtAlLroVh60JdYFKTNf4IlJvp4hM0oPMm0BfbY=; b=PtNH9wdFFWRSulqjQRnE/G86D1ebz2OspJwyU38LxEv02YTTWB4u6udW uUaJZMdJ5zY8VIbGtwNNHEcfzbH6AMKQxOVqgc7Y+p1qPuGT0pzMEMMDt EsH02nXdyYwAfS5GMLWUpF7CAT8y3lcGj4e4efdw4xK+lOrIWIeLz42r9 RABw90kgaWKMmFH1OsF7ZHnAbF5Ihl4b8z2U6mVEQUGZ8oc8ZzTpbA/cr h84NXjgUyakXgDDzolWi++RePHo7G1MNA1jwbBZA2AAZbCWaVajnReEiy Nk75rKWEJNfJy1zKGyU06OWAuLjyjkieFuTDcEJH+RVbOpvIRgBH0S3o3 A==; X-CSE-ConnectionGUID: dgXVCOsZQL2B+6AHGe3gWQ== X-CSE-MsgGUID: V2Qr8cOCQnaUn4YDLqqGow== X-IronPort-AV: E=McAfee;i="6800,10657,11753"; a="75811598" X-IronPort-AV: E=Sophos;i="6.23,167,1770624000"; d="scan'208";a="75811598" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Apr 2026 07:01:30 -0700 X-CSE-ConnectionGUID: VsINA873SfeFbbE3M4Ak1g== X-CSE-MsgGUID: VudpyyuCTHq7Zd38M/LUWA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,167,1770624000"; d="scan'208";a="228726703" Received: from smoticic-mobl1.ger.corp.intel.com (HELO jhogande-mobl3.intel.com) ([10.245.244.251]) by orviesa007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Apr 2026 07:01:29 -0700 From: =?UTF-8?q?Jouni=20H=C3=B6gander?= To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: =?UTF-8?q?Jouni=20H=C3=B6gander?= Subject: [PATCH 7/7] drm/i915/alpm: Dump out ALPM capability DPCD register Date: Wed, 8 Apr 2026 17:00:59 +0300 Message-ID: <20260408140059.252067-8-jouni.hogander@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260408140059.252067-1-jouni.hogander@intel.com> References: <20260408140059.252067-1-jouni.hogander@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Content-Transfer-Encoding: 8bit X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Add dumping out ALPM capability DPCD registers. This helps parsing dmesg logs and tracing possible ALPM issues. Signed-off-by: Jouni Högander --- 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