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 4708BD58E47 for ; Mon, 2 Mar 2026 03:37:48 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DAF3D10E350; Mon, 2 Mar 2026 03:37:47 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Nxe6X7cL"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) by gabe.freedesktop.org (Postfix) with ESMTPS id 285A710E077; Mon, 2 Mar 2026 03:37:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772422666; x=1803958666; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=Ru2laCQHS41AQNp5VQ+pIQ1d2rOjkozF7jqTxX82BKk=; b=Nxe6X7cLQl4n5sduyjCAmxsXqaX2w6VKmqyWKQ4Ake0Q/mrwYxFiWxs7 qVVw1rcdTV0dsHMmAHXyJyynORfJj6fKmETpfOP5EerBeIhBxJDVhxETL wLbFuucMGbnB3+F0/Kpkw4gd5QLzm4vxuWqD4AWM7s4u3HUtTmEf8g+fX XJNpWhiYAYowb75KKeGtOFdIZl8Voj+NC6MPaNPHxQy1SiKWLpIFPROkt teQfnZ7f+eSngA+Zv5J6vTOOO5g90Fs6MrYCbSO6ow50xqKdRrwgNeJbf R/t0s1sSq2pEoNftRt640pmhnFMh53OFG90+AbUVrkFoKmDxLgMpcI3c3 w==; X-CSE-ConnectionGUID: PUd2mIABSWGrCVp7/oeHnw== X-CSE-MsgGUID: r3sTm2K7SNyq/YoRSMi/pA== X-IronPort-AV: E=McAfee;i="6800,10657,11716"; a="91000141" X-IronPort-AV: E=Sophos;i="6.21,319,1763452800"; d="scan'208";a="91000141" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Mar 2026 19:37:46 -0800 X-CSE-ConnectionGUID: FqhIgxcxTtK8btoSUM95kw== X-CSE-MsgGUID: amcBKp4JTEe+4iwuCZL1dw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,319,1763452800"; d="scan'208";a="215206569" Received: from srr4-3-linux-106-armuthy.iind.intel.com ([10.190.238.56]) by fmviesa010.fm.intel.com with ESMTP; 01 Mar 2026 19:37:43 -0800 From: Arun R Murthy To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: animesh.manna@intel.com, ankit.k.nautiyal@intel.com, jani.nikula@intel.com, jouni.hogander@intel.com, Arun R Murthy Subject: [PATCH] drm/i915/dp: ALPM init to be done after DPCD init Date: Mon, 2 Mar 2026 09:06:30 +0530 Message-Id: <20260302033630.428913-1-arun.r.murthy@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" In ALPM init, the DPCD register ALPM_CAPABILITIES are to be read. This read has to happen after the DPCD init. Signed-off-by: Arun R Murthy --- drivers/gpu/drm/i915/display/intel_dp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 613559d11133..e60802b0b8c9 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -6948,8 +6948,6 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp, */ intel_hpd_enable_detection(encoder); - intel_alpm_init(intel_dp); - /* Cache DPCD and EDID for edp. */ has_dpcd = intel_edp_init_dpcd(intel_dp, connector); @@ -6961,6 +6959,8 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp, goto out_vdd_off; } + intel_alpm_init(intel_dp); + /* * VBT and straps are liars. Also check HPD as that seems * to be the most reliable piece of information available. -- 2.25.1