From patchwork Thu Mar 22 08:18:46 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ankit Nautiyal X-Patchwork-Id: 10300947 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 543F1600F6 for ; Thu, 22 Mar 2018 08:25:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 45B5028A34 for ; Thu, 22 Mar 2018 08:25:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3A50429A6F; Thu, 22 Mar 2018 08:25:38 +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=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham 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 AC33828A34 for ; Thu, 22 Mar 2018 08:25:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 60A276EBB0; Thu, 22 Mar 2018 08:25:34 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id AEC566EBAE for ; Thu, 22 Mar 2018 08:25:33 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Mar 2018 01:25:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,343,1517904000"; d="scan'208";a="26061785" Received: from ankit-desktop.iind.intel.com ([10.223.161.14]) by fmsmga007.fm.intel.com with ESMTP; 22 Mar 2018 01:25:32 -0700 From: "Nautiyal, Ankit K" To: dri-devel@lists.freedesktop.org Subject: [PATCH v9 04/11] drm/edid: Don't send bogus aspect ratios in AVI infoframes Date: Thu, 22 Mar 2018 13:48:46 +0530 Message-Id: <1521706733-678-5-git-send-email-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1521706733-678-1-git-send-email-ankit.k.nautiyal@intel.com> References: <1521706733-678-1-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 29c88eb..d5757aa 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -4840,6 +4840,7 @@ 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) @@ -4882,13 +4883,23 @@ 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;