From patchwork Wed Feb 26 11:24:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 11406141 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D750C1395 for ; Wed, 26 Feb 2020 11:26:01 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id B5EF220637 for ; Wed, 26 Feb 2020 11:26:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="N5fX2NaC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B5EF220637 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 181598919B; Wed, 26 Feb 2020 11:25:56 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5C3A36E4D2 for ; Wed, 26 Feb 2020 11:25:44 +0000 (UTC) Received: from pendragon.bb.dnainternet.fi (81-175-216-236.bb.dnainternet.fi [81.175.216.236]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 32A5EDC3; Wed, 26 Feb 2020 12:25:42 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1582716342; bh=5I92GX1rEpGxUM0Pwg0gw/KaR9dVrLHRasAi3KpsqR8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=N5fX2NaC6k9kqx7M9x/yzDVNPg372L5IR6kROGOjNEUt9YQWQ3Zn9JoZ68wV02DSb E1/J835vSXe9lrAEW73vQcnU058bCqncVE6nv/xcVOM5YGrq0jAugX0CObyQKmKTOc v0JmklK577uaYSo3ehLRrAzggs2TPI16cDSHcwk0= From: Laurent Pinchart To: dri-devel@lists.freedesktop.org Subject: [PATCH v8 03/54] drm/edid: Add flag to drm_display_info to identify HDMI sinks Date: Wed, 26 Feb 2020 13:24:23 +0200 Message-Id: <20200226112514.12455-4-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200226112514.12455-1-laurent.pinchart@ideasonboard.com> References: <20200226112514.12455-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Tomi Valkeinen Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The drm_display_info structure contains many fields related to HDMI sinks, but none that identifies if a sink compliant with CEA-861 (EDID) shall be treated as an HDMI sink or a DVI sink. Add such a flag, and populate it according to section 8.3.3 ("DVI/HDMI Device Discrimination") of the HDMI v1.3 specification. Signed-off-by: Laurent Pinchart Reviewed-by: Andrzej Hajda Reviewed-by: Ville Syrjälä Reviewed-by: Daniel Vetter Reviewed-by: Boris Brezillon Acked-by: Sam Ravnborg Tested-by: Sebastian Reichel Reviewed-by: Sebastian Reichel --- Documentation/gpu/todo.rst | 14 ++++++++++++++ drivers/gpu/drm/drm_edid.c | 6 ++++++ include/drm/drm_connector.h | 8 ++++++++ 3 files changed, 28 insertions(+) diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index 370ac678106e..ccf5e8e34222 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -407,6 +407,20 @@ Contact: Daniel Vetter Level: Intermediate +Replace drm_detect_hdmi_monitor() with drm_display_info.is_hdmi +--------------------------------------------------------------- + +Once EDID is parsed, the monitor HDMI support information is available through +drm_display_info.is_hdmi. Many drivers still call drm_detect_hdmi_monitor() to +retrieve the same information, which is less efficient. + +Audit each individual driver calling drm_detect_hdmi_monitor() and switch to +drm_display_info.is_hdmi if applicable. + +Contact: Laurent Pinchart, respective driver maintainers + +Level: Intermediate + Core refactorings ================= diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 5f3bc3486fde..ad41764a4ebe 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -4647,6 +4647,9 @@ EXPORT_SYMBOL(drm_av_sync_delay); * * Parse the CEA extension according to CEA-861-B. * + * Drivers that have added the modes parsed from EDID to drm_display_info + * should use &drm_display_info.is_hdmi instead of calling this function. + * * Return: True if the monitor is HDMI, false if not or unknown. */ bool drm_detect_hdmi_monitor(struct edid *edid) @@ -4881,6 +4884,8 @@ drm_parse_hdmi_vsdb_video(struct drm_connector *connector, const u8 *db) struct drm_display_info *info = &connector->display_info; u8 len = cea_db_payload_len(db); + info->is_hdmi = true; + if (len >= 6) info->dvi_dual = db[6] & 1; if (len >= 7) @@ -4949,6 +4954,7 @@ drm_reset_display_info(struct drm_connector *connector) info->cea_rev = 0; info->max_tmds_clock = 0; info->dvi_dual = false; + info->is_hdmi = false; info->has_hdmi_infoframe = false; info->rgb_quant_range_selectable = false; memset(&info->hdmi, 0, sizeof(info->hdmi)); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index c3bd5262db9c..0df7a95ca5d9 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -434,6 +434,14 @@ struct drm_display_info { */ bool dvi_dual; + /** + * @is_hdmi: True if the sink is an HDMI device. + * + * This field shall be used instead of calling + * drm_detect_hdmi_monitor() when possible. + */ + bool is_hdmi; + /** * @has_hdmi_infoframe: Does the sink support the HDMI infoframe? */