From patchwork Sat Feb 22 15:00:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 11398197 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 216C9109A for ; Sat, 22 Feb 2020 15:03:01 +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 0023D206ED for ; Sat, 22 Feb 2020 15:03:00 +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="Y2Gkwq6H" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0023D206ED 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 405746E943; Sat, 22 Feb 2020 15:02:21 +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 [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by gabe.freedesktop.org (Postfix) with ESMTPS id CC9F46E924 for ; Sat, 22 Feb 2020 15:02:12 +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 32A6D563; Sat, 22 Feb 2020 16:02:09 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1582383729; bh=GFYMKpD9mZd1fCiYuEaSFCKmPZcYSDKi4tuugxPYOQQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Y2Gkwq6HhumH/nJQRgZSg81ZJgm/f3hJn0216bS10YZ31AlISZ1PktV42rN4qg2HV QWGQBhn2BTAMCTetNwJz9RwsPOO9pQXhJDxWK8ORpdFYpvgWQxaFMlm+78gyzB9a6c 65JUcKNqrkbsUEboF1Pk+DqC+70d7lGwzxn581kk= From: Laurent Pinchart To: dri-devel@lists.freedesktop.org Subject: [PATCH v7 43/54] drm/omap: hdmi4: Simplify EDID read Date: Sat, 22 Feb 2020 17:00:55 +0200 Message-Id: <20200222150106.22919-44-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200222150106.22919-1-laurent.pinchart@ideasonboard.com> References: <20200222150106.22919-1-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 , Sam Ravnborg , Sebastian Reichel , Boris Brezillon Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Now that the omap_dss_device EDID read operation has been removed, simplify the bridge-based EDID access by merging multiple functions together. Signed-off-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen Tested-by: Sebastian Reichel Reviewed-by: Sebastian Reichel --- drivers/gpu/drm/omapdrm/dss/hdmi4.c | 96 ++++++++++++----------------- 1 file changed, 40 insertions(+), 56 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c b/drivers/gpu/drm/omapdrm/dss/hdmi4.c index 96ef7bd52199..2578c95570f6 100644 --- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c +++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c @@ -309,55 +309,6 @@ void hdmi4_core_disable(struct hdmi_core_data *core) mutex_unlock(&hdmi->lock); } -static struct edid * -hdmi_do_read_edid(struct omap_hdmi *hdmi, - struct edid *(*read)(struct omap_hdmi *hdmi, - struct drm_connector *connector), - struct drm_connector *connector) -{ - struct edid *edid = NULL; - unsigned int cec_addr; - bool need_enable; - int r; - - need_enable = hdmi->core_enabled == false; - - if (need_enable) { - r = hdmi4_core_enable(&hdmi->core); - if (r) - return NULL; - } - - mutex_lock(&hdmi->lock); - r = hdmi_runtime_get(hdmi); - BUG_ON(r); - - r = hdmi4_core_ddc_init(&hdmi->core); - if (r) - goto done; - - edid = read(hdmi, connector); - -done: - hdmi_runtime_put(hdmi); - mutex_unlock(&hdmi->lock); - - if (edid && edid->extensions) { - unsigned int len = (edid->extensions + 1) * EDID_LENGTH; - - cec_addr = cec_get_edid_phys_addr((u8 *)edid, len, NULL); - } else { - cec_addr = CEC_PHYS_ADDR_INVALID; - } - - hdmi4_cec_set_phys_addr(&hdmi->core, cec_addr); - - if (need_enable) - hdmi4_core_disable(&hdmi->core); - - return edid; -} - /* ----------------------------------------------------------------------------- * DRM Bridge Operations */ @@ -485,18 +436,51 @@ static void hdmi4_bridge_hpd_notify(struct drm_bridge *bridge, hdmi4_cec_set_phys_addr(&hdmi->core, CEC_PHYS_ADDR_INVALID); } -static struct edid *hdmi4_bridge_read_edid(struct omap_hdmi *hdmi, - struct drm_connector *connector) -{ - return drm_do_get_edid(connector, hdmi4_core_ddc_read, &hdmi->core); -} - static struct edid *hdmi4_bridge_get_edid(struct drm_bridge *bridge, struct drm_connector *connector) { struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge); + struct edid *edid = NULL; + unsigned int cec_addr; + bool need_enable; + int r; + + need_enable = hdmi->core_enabled == false; + + if (need_enable) { + r = hdmi4_core_enable(&hdmi->core); + if (r) + return NULL; + } + + mutex_lock(&hdmi->lock); + r = hdmi_runtime_get(hdmi); + BUG_ON(r); + + r = hdmi4_core_ddc_init(&hdmi->core); + if (r) + goto done; + + edid = drm_do_get_edid(connector, hdmi4_core_ddc_read, &hdmi->core); - return hdmi_do_read_edid(hdmi, hdmi4_bridge_read_edid, connector); +done: + hdmi_runtime_put(hdmi); + mutex_unlock(&hdmi->lock); + + if (edid && edid->extensions) { + unsigned int len = (edid->extensions + 1) * EDID_LENGTH; + + cec_addr = cec_get_edid_phys_addr((u8 *)edid, len, NULL); + } else { + cec_addr = CEC_PHYS_ADDR_INVALID; + } + + hdmi4_cec_set_phys_addr(&hdmi->core, cec_addr); + + if (need_enable) + hdmi4_core_disable(&hdmi->core); + + return edid; } static const struct drm_bridge_funcs hdmi4_bridge_funcs = {