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 9CAF9F8E4B4 for ; Fri, 17 Apr 2026 07:29:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4E1A810E987; Fri, 17 Apr 2026 07:29:55 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Qru3qRrD"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4558010E988 for ; Fri, 17 Apr 2026 07:29:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1776410968; x=1807946968; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=96O3ZsyzYD4cu5qiyHmbVPKq03+B7laMagEFxvHhJMg=; b=Qru3qRrDGT49XHTVynF22CLk+BMCi6YO2BdXxdsxxoR/lPNAQWmUWEVm cxYHN3qGmRjfDTlP0yaSAVLkNUawezedqpJEdy9OPt0BT4edFOYwnQkEy CNx5LRYePA5qLymfFhfOkrRKgLrTvW0/LB4qFwTAR2Af/tWordHrtpt7N SPWu/PZk2UdVlgwIc98LPYbuX6+5Tt5uS05kdBClERuLd9PYXgFUYIpLn GGzppOqjCz+XuG8M/3EklzzxblwRzI+IxeHGltULFKBOOyJwNkyG7qwzH SVuRURBA3lG+wXDjnKpsUUmHWlY55POmUTnP82grr6KHVmo7PDGaIW/22 w==; X-CSE-ConnectionGUID: HNpCYZYBSC6OnQlx3wVcFA== X-CSE-MsgGUID: 61EYq79RQVq6n4oYF1wjjA== X-IronPort-AV: E=McAfee;i="6800,10657,11761"; a="81021129" X-IronPort-AV: E=Sophos;i="6.23,183,1770624000"; d="scan'208";a="81021129" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Apr 2026 00:29:28 -0700 X-CSE-ConnectionGUID: Q/xdqmVBToe12nCBz+6xQQ== X-CSE-MsgGUID: HB6ydSG7SWedsnP3b9HN5g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,183,1770624000"; d="scan'208";a="268985291" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Apr 2026 00:29:27 -0700 From: Ankit Nautiyal To: igt-dev@lists.freedesktop.org Cc: kamil.konieczny@linux.intel.com, karthik.b.s@intel.com, Ankit Nautiyal Subject: [PATCH i-g-t 4/4] tools/intel_vbt_decode: dump eDP data rate override field Date: Fri, 17 Apr 2026 12:44:32 +0530 Message-ID: <20260417071432.2252380-5-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20260417071432.2252380-1-ankit.k.nautiyal@intel.com> References: <20260417071432.2252380-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: igt-dev@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development mailing list for IGT GPU Tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" Add decoding support for the eDP data rate override field introduced in VBT version 263+. Signed-off-by: Ankit Nautiyal --- tools/intel_vbt_decode.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/tools/intel_vbt_decode.c b/tools/intel_vbt_decode.c index 1cf2d7d352ab..778343395809 100644 --- a/tools/intel_vbt_decode.c +++ b/tools/intel_vbt_decode.c @@ -1125,6 +1125,39 @@ static const char * const hdmi_frl_rate_str[] = { [5] = "12 GT/s", }; +static void dump_edp_data_rate_override(uint32_t edp_data_rate_override) +{ + int i; + static const uint32_t link_rates[BDB_263_VBT_EDP_NUM_RATES][2] = { + { BDB_263_VBT_EDP_LINK_RATE_1_62, 162000 }, + { BDB_263_VBT_EDP_LINK_RATE_2_16, 216000 }, + { BDB_263_VBT_EDP_LINK_RATE_2_43, 243000 }, + { BDB_263_VBT_EDP_LINK_RATE_2_7, 270000 }, + { BDB_263_VBT_EDP_LINK_RATE_3_24, 324000 }, + { BDB_263_VBT_EDP_LINK_RATE_4_32, 432000 }, + { BDB_263_VBT_EDP_LINK_RATE_5_4, 540000 }, + { BDB_263_VBT_EDP_LINK_RATE_6_75, 675000 }, + { BDB_263_VBT_EDP_LINK_RATE_8_1, 810000 }, + { BDB_263_VBT_EDP_LINK_RATE_10, 1000000 }, + { BDB_263_VBT_EDP_LINK_RATE_13_5, 1350000 }, + { BDB_263_VBT_EDP_LINK_RATE_20, 2000000}, + }; + + edp_data_rate_override &= BDB_263_VBT_EDP_RATES_MASK; + + printf("\t\teDP data rate override:"); + + if (!edp_data_rate_override) { + printf("(none)\n"); + return; + } + printf("\n"); + + for (i = 0; i < BDB_263_VBT_EDP_NUM_RATES; i++) + if (link_rates[i][0] & edp_data_rate_override) + printf("\t\t\t%d kbps\n", link_rates[i][1]); +} + static void dump_child_device(struct context *context, const struct child_device_config *child) { @@ -1285,6 +1318,9 @@ static void dump_child_device(struct context *context, if (context->bdb->version >= 256) printf("\t\tEFP panel index: %d\n", child->efp_index); + + if (context->bdb->version >= 263) + dump_edp_data_rate_override(child->edp_data_rate_override); } static void dump_child_devices(struct context *context, const uint8_t *devices, -- 2.45.2