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 EB9CBC79F8B for ; Fri, 4 Sep 2026 12:32:00 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 42A5110F99E; Fri, 4 Sep 2026 12:32:00 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="J8f8IlAH"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.14]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9CB5110F98B; Fri, 4 Sep 2026 12:31:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1788525120; x=1820061120; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=MKkES8rysN8QHJzDJ8PCMb1OynkodV2r/HuwVn9GjHs=; b=J8f8IlAH2+E7zHGOFFoanngw+9NKOaUY3tFkgLDGH5Vko9sZJ78CCObI 3U9RxAk6McO1EomX1HrykVaNqNUO52DXCxLu5I7BWF5t5DsZTntGTA9vj 5+w5/0q521U1fTD/kxw191djYmClsjQIBs+hsQyYQ2NPaAcsq5jFEx6IM PLlL1tK0DFr6F63/uZMXlJyKloQwyoQzvkhd/+JlA6uo+GhhHVocI43jz XSC7sNSd3xl+1fEYAd/LUlNhm29a1KlYJvonTahuJHGzZJuR/2gyBiApv oH2DqbDF6DD3OYMrtb0dmIVs9HnrWptEUh/Io3SPfIZsqC2FKR2F14DSc w==; X-CSE-ConnectionGUID: o9Ag956PSl+VsaKVZ6t4fQ== X-CSE-MsgGUID: jyb97OtARS2RqGgjBoupmA== X-IronPort-AV: E=McAfee;i="6800,10657,11895"; a="92896574" X-IronPort-AV: E=Sophos;i="6.25,262,1779174000"; d="scan'208";a="92896574" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by orvoesa106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2026 05:31:59 -0700 X-CSE-ConnectionGUID: PDRQ4NWSSriIlARa2UuNPA== X-CSE-MsgGUID: PovmT87aT/y+Jad3I9znzQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,262,1779174000"; d="scan'208";a="275311579" Received: from dev-417.igk.intel.com ([10.91.214.181]) by fmviesa005.fm.intel.com with ESMTP; 04 Sep 2026 05:31:58 -0700 From: =?UTF-8?q?Micha=C5=82=20Grzelak?= To: intel-xe@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Cc: Jani Nikula , Suraj Kandpal , =?UTF-8?q?Micha=C5=82=20Grzelak?= Subject: [PATCH v12 3/8] drm/i915/bios: print VS/PE-O port info Date: Fri, 4 Sep 2026 14:31:43 +0200 Message-ID: <20260904123148.2165596-4-michal.grzelak@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20260904123148.2165596-1-michal.grzelak@intel.com> References: <20260904123148.2165596-1-michal.grzelak@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 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" Issue a debug message when port asks to override default Vswing / Preemphasis tables. Add helper intel_bios_encoder_requests_vspeo() to check if port requests for overriding default VS/PE tables. v6->v7 - expand VS/PE-O acronym in debug logging (Jani) v3->v4 - change debug message when requesting VS/PE-O (Suraj) Signed-off-by: Michał Grzelak Reviewed-by: Suraj Kandpal Acked-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_bios.c | 10 ++++++++++ drivers/gpu/drm/i915/display/intel_bios.h | 1 + 2 files changed, 11 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index 06a8dd7581bb8..9610b794bc147 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -2801,6 +2801,11 @@ static void print_ddi_port(const struct intel_bios_encoder_data *devdata) "Port %c supports dynamic DDI allocation in TCSS\n", port_name(port)); + if (intel_bios_encoder_requests_vspeo(devdata)) + drm_dbg_kms(display->drm, + "Port %c requests vswing/pre-emphasis override\n", + port_name(port)); + hdmi_level_shift = intel_bios_hdmi_level_shift(devdata); if (hdmi_level_shift >= 0) { drm_dbg_kms(display->drm, @@ -3829,6 +3834,11 @@ int intel_bios_hdmi_ddc_pin(const struct intel_bios_encoder_data *devdata) return map_ddc_pin(devdata->display, devdata->child.ddc_pin); } +bool intel_bios_encoder_requests_vspeo(const struct intel_bios_encoder_data *devdata) +{ + return devdata->display->vbt.version >= 218 && devdata->child.use_vbt_vswing; +} + bool intel_bios_encoder_supports_typec_usb(const struct intel_bios_encoder_data *devdata) { return devdata->display->vbt.version >= 195 && devdata->child.dp_usb_type_c; diff --git a/drivers/gpu/drm/i915/display/intel_bios.h b/drivers/gpu/drm/i915/display/intel_bios.h index 75dff27b42289..7a50a272cd27d 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.h +++ b/drivers/gpu/drm/i915/display/intel_bios.h @@ -73,6 +73,7 @@ bool intel_bios_get_dsc_params(struct intel_encoder *encoder, const struct intel_bios_encoder_data * intel_bios_encoder_data_lookup(struct intel_display *display, enum port port); +bool intel_bios_encoder_requests_vspeo(const struct intel_bios_encoder_data *devdata); bool intel_bios_encoder_supports_dvi(const struct intel_bios_encoder_data *devdata); bool intel_bios_encoder_supports_hdmi(const struct intel_bios_encoder_data *devdata); bool intel_bios_encoder_supports_dp(const struct intel_bios_encoder_data *devdata); -- 2.45.2