From patchwork Wed May 2 06:50:16 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Nautiyal, Ankit K" X-Patchwork-Id: 10375011 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0D540603B4 for ; Wed, 2 May 2018 06:58:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F062B28BC5 for ; Wed, 2 May 2018 06:58:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E1FDA28C6A; Wed, 2 May 2018 06:58:33 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7754628BC5 for ; Wed, 2 May 2018 06:58:33 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 073626E511; Wed, 2 May 2018 06:58:18 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id 27EDD6E512; Wed, 2 May 2018 06:58:15 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 May 2018 23:58:14 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,354,1520924400"; d="scan'208";a="196029460" Received: from ankit-desktop.iind.intel.com ([10.223.161.2]) by orsmga004.jf.intel.com with ESMTP; 01 May 2018 23:58:09 -0700 From: "Nautiyal, Ankit K" To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Subject: [PATCH v13 04/10] drm/edid: Don't send bogus aspect ratios in AVI infoframes Date: Wed, 2 May 2018 12:20:16 +0530 Message-Id: <1525243822-19308-5-git-send-email-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1525243822-19308-1-git-send-email-ankit.k.nautiyal@intel.com> References: <1525243822-19308-1-git-send-email-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Ville Syrjälä If the user mode would specify an aspect ratio other than 4:3 or 16:9 we now silently ignore it. Maybe a better apporoach is to return an error? Let's try that. Also we must be careful that we don't try to send illegal picture aspect in the infoframe as it's only capable of signalling none, 4:3, and 16:9. Currently we're sending these bogus infoframes whenever the cea mode specifies some other aspect ratio. Cc: Shashank Sharma Cc: Sean Paul Cc: Jose Abreu Cc: Daniel Vetter Cc: Emil Velikov Signed-off-by: Ville Syrjälä Reviewed-by: Shashank Sharma --- drivers/gpu/drm/drm_edid.c | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 3f157c8..40e1e24 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -4833,6 +4833,7 @@ drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame, const struct drm_display_mode *mode, bool is_hdmi2_sink) { + enum hdmi_picture_aspect picture_aspect; int err; if (!frame || !mode) @@ -4875,13 +4876,23 @@ drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame, * Populate picture aspect ratio from either * user input (if specified) or from the CEA mode list. */ - if (mode->picture_aspect_ratio == HDMI_PICTURE_ASPECT_4_3 || - mode->picture_aspect_ratio == HDMI_PICTURE_ASPECT_16_9) - frame->picture_aspect = mode->picture_aspect_ratio; - else if (frame->video_code > 0) - frame->picture_aspect = drm_get_cea_aspect_ratio( - frame->video_code); + picture_aspect = mode->picture_aspect_ratio; + if (picture_aspect == HDMI_PICTURE_ASPECT_NONE) + picture_aspect = drm_get_cea_aspect_ratio(frame->video_code); + /* + * The infoframe can't convey anything but none, 4:3 + * and 16:9, so if the user has asked for anything else + * we can only satisfy it by specifying the right VIC. + */ + if (picture_aspect > HDMI_PICTURE_ASPECT_16_9) { + if (picture_aspect != + drm_get_cea_aspect_ratio(frame->video_code)) + return -EINVAL; + picture_aspect = HDMI_PICTURE_ASPECT_NONE; + } + + frame->picture_aspect = picture_aspect; frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE; frame->scan_mode = HDMI_SCAN_MODE_UNDERSCAN;