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 112D9D58E7E for ; Mon, 2 Mar 2026 08:42:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BB30810E45C; Mon, 2 Mar 2026 08:42:13 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="IuPPw6My"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) by gabe.freedesktop.org (Postfix) with ESMTPS id A273810E45C; Mon, 2 Mar 2026 08:42:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772440933; x=1803976933; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=aET3OjzIhd/ajEiwEnmdhwS6CPEDJogQG+uI1++00WQ=; b=IuPPw6MyV5a+FzOWHqSkUtTDnODI7HZ0V4ayyIeTbJepn2itBkpH231B e3C/Hs8a/apjo9GcwAcOFH9Ep0u/cEXtkSW6MsXi/Pdq6e14sH1eZ4t4F XW4gpaWQJWxQTCAMophfrND8rWyp0iZklx4HcX60/gmbhcUxN6RadCaI/ ayHbTFmQ+XChORE7ZQKaw5KEYKCZFk91tCSGrr+vRY7V+NWCJc2PwTG0W ntXhh5y6UCj5vBxF56sztUG5Yxoai1eku8qWlGLlIot20goouRBX/sTLv FtBTf4HINxyIsS0Ed6ZwNqcK7u3G7tZVSM/6n0LWTK0wMxs5TG8mNGQ0H Q==; X-CSE-ConnectionGUID: BWH+rQjtSWOBeHWEAkdCzA== X-CSE-MsgGUID: 0nemvFPeQO2iIqfZoTpUkA== X-IronPort-AV: E=McAfee;i="6800,10657,11716"; a="84079943" X-IronPort-AV: E=Sophos;i="6.21,319,1763452800"; d="scan'208";a="84079943" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Mar 2026 00:42:11 -0800 X-CSE-ConnectionGUID: uEva/LOMRKO/ADRD7AtReQ== X-CSE-MsgGUID: MkwZlp13QK27JGJx6k7S2g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,319,1763452800"; d="scan'208";a="221737637" Received: from srr4-3-linux-106-armuthy.iind.intel.com ([10.190.238.56]) by orviesa003.jf.intel.com with ESMTP; 02 Mar 2026 00:41:43 -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: [PATCHv2 1/2] drm/i915/dp: Read ALPM caps after DPCD init Date: Mon, 2 Mar 2026 14:10:29 +0530 Message-Id: <20260302084030.463284-1-arun.r.murthy@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260302033630.428913-1-arun.r.murthy@intel.com> References: <20260302033630.428913-1-arun.r.murthy@intel.com> 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" For eDP read the ALPM DPCD caps after DPCD initalization and just before the PSR init. v2: Move intel_alpm_init to intel_edp_init_dpcd (Jouni) Signed-off-by: Arun R Murthy --- drivers/gpu/drm/i915/display/intel_dp.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 025e906b63a9..1544758c0bbc 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -4748,6 +4748,9 @@ intel_edp_init_dpcd(struct intel_dp *intel_dp, struct intel_connector *connector */ intel_dp_init_source_oui(intel_dp); + /* Read ALPM DPCD caps before reading the PSR CAPS */ + intel_alpm_init(intel_dp); + /* * 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] @@ -6914,8 +6917,6 @@ 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); -- 2.25.1