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 539D1C43602 for ; Thu, 2 Jul 2026 18:58:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A823F10F58F; Thu, 2 Jul 2026 18:58:54 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Ur7Gm9Zp"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3A83D10F58E; Thu, 2 Jul 2026 18:58:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1783018733; x=1814554733; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=I+nnQrN0rLJTHGX8/Ecumr5cDudOmDEfC3lwsrHgN9U=; b=Ur7Gm9ZpT8YkQoi81AUnjTh7ZuoKlwXV9OMv+T4I02GRYc6gSMEt6EQb Y3TZWM1BZztizxWOg32mXWoFdSzW0sFiHHaQjztgZABHhenqoxCVor9YF l0GOExgkDc4p2O1kLM4Y+dwST3J1CHZ3Ml6HoWTSnwvian2bhEgBR6K12 K54vu8hry47PfMyQNbOBwxf1Hxzh1eGae/q26eJJGYKwFLC5do93zU8/f BMeyz0eir8Lbuqr+Jx/D7XCA/Sydsj5GlpI2TY1/1uQMBB1t8tzIOjdgT 8h+XD5Vy0dyZ1h4RZDzAxKkPb7YHcZOBJnk2tzWy3DlHLoAJ+l0ZuLvm5 Q==; X-CSE-ConnectionGUID: 6Kes3rSmSfSkWGpyqUuayg== X-CSE-MsgGUID: Do9Y7lSSRDqbH6dv5RU6Uw== X-IronPort-AV: E=McAfee;i="6800,10657,11835"; a="71300034" X-IronPort-AV: E=Sophos;i="6.25,144,1779174000"; d="scan'208";a="71300034" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jul 2026 11:58:53 -0700 X-CSE-ConnectionGUID: Sl4/HUyjSK6YIAC8bvwgvQ== X-CSE-MsgGUID: vDAOyAXKRKGIobp9Juh6Nw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,144,1779174000"; d="scan'208";a="251862159" Received: from dev-417.igk.intel.com ([10.91.214.181]) by orviesa010.jf.intel.com with ESMTP; 02 Jul 2026 11:58:51 -0700 From: =?UTF-8?q?Micha=C5=82=20Grzelak?= To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: Jani Nikula , Suraj Kandpal , =?UTF-8?q?Micha=C5=82=20Grzelak?= Subject: [PATCH v10 3/8] drm/i915/bios: print VS/PE-O port info Date: Thu, 2 Jul 2026 20:58:34 +0200 Message-ID: <20260702185839.4042397-4-michal.grzelak@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20260702185839.4042397-1-michal.grzelak@intel.com> References: <20260702185839.4042397-1-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-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" 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 --- 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 06a8dd7581bb..9610b794bc14 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 75dff27b4228..7a50a272cd27 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