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 92D3AF94CB2 for ; Wed, 22 Apr 2026 03:59:33 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 45BA310E261; Wed, 22 Apr 2026 03:59:33 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="NgxhyzAD"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) by gabe.freedesktop.org (Postfix) with ESMTPS id B7A6810E262 for ; Wed, 22 Apr 2026 03:58:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1776830320; x=1808366320; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=WKz8TeSDpAjSn2uxtQ8kUpxjtgd4SdwfXScZ4In0mAE=; b=NgxhyzADpBTZS8wDRH2lTtKoI77DHnRqA/6vCp7OfcEn92KclG+9i1xZ kgY/4lvq8Jri86mrZbqdZVqIwcQ4fFYT5MdvNIOIDOSNAxKjlIUeCMNQF KozAFvq82g8DblW/XsJ/EL920QThbuiQosDhHoHZ0t9lXDUG5Kc71c2ud IVR3tUBzOYdEvcQIfMx7hkUbOZ97Ty5opQsW4q0soId+MR8IdQVbli01K jGNI25bEOLhK5KObsPedT1WB/KnfVp43NwsFJ+G3ZDei3YRerhuXVd9fO IyW2p1miib/jsFsfCg688pMeYEvSF5bdU3qIre8IQTyc+YHUscmCXjgZ6 A==; X-CSE-ConnectionGUID: 243kXvPESjay+fmXzgvR0w== X-CSE-MsgGUID: GxBEiONqS0CKAUm94scK/w== X-IronPort-AV: E=McAfee;i="6800,10657,11763"; a="95338490" X-IronPort-AV: E=Sophos;i="6.23,192,1770624000"; d="scan'208";a="95338490" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Apr 2026 20:58:39 -0700 X-CSE-ConnectionGUID: WGcKhmQlQaOD7PwHMI0nbA== X-CSE-MsgGUID: QzBI+Fe5QI2x1SxrTIDUIA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,192,1770624000"; d="scan'208";a="232151357" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by orviesa008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Apr 2026 20:58:38 -0700 From: Ankit Nautiyal To: igt-dev@lists.freedesktop.org Cc: kamil.konieczny@linux.intel.com, karthik.b.s@intel.com, ville.syrjala@linux.intel.com, jani.nikula@linux.intel.com, Ankit Nautiyal Subject: [PATCH i-g-t 6/8] tools/intel_vbt_decode: dump eDP data rate override field Date: Wed, 22 Apr 2026 09:13:33 +0530 Message-ID: <20260422034335.2326098-7-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20260422034335.2326098-1-ankit.k.nautiyal@intel.com> References: <20260422034335.2326098-1-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 7785e9e82b1f..6c0273aeecfc 100644 --- a/tools/intel_vbt_decode.c +++ b/tools/intel_vbt_decode.c @@ -1121,6 +1121,39 @@ 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) { @@ -1281,6 +1314,9 @@ 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