From patchwork Tue Dec 18 17:04:15 2012
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Steffen Trumtrar <s.trumtrar@pengutronix.de>
X-Patchwork-Id: 1892911
Return-Path: 
 <dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org>
X-Original-To: patchwork-dri-devel@patchwork.kernel.org
Delivered-To: patchwork-process-083081@patchwork1.kernel.org
Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177])
	by patchwork1.kernel.org (Postfix) with ESMTP id 0D1A23FC64
	for <patchwork-dri-devel@patchwork.kernel.org>;
	Tue, 18 Dec 2012 17:13:53 +0000 (UTC)
Received: from gabe.freedesktop.org (localhost [127.0.0.1])
	by gabe.freedesktop.org (Postfix) with ESMTP id 024BCE62E7
	for <patchwork-dri-devel@patchwork.kernel.org>;
	Tue, 18 Dec 2012 09:13:53 -0800 (PST)
X-Original-To: dri-devel@lists.freedesktop.org
Delivered-To: dri-devel@lists.freedesktop.org
Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de
	[92.198.50.35])
	by gabe.freedesktop.org (Postfix) with ESMTP id 1F301E6317
	for <dri-devel@lists.freedesktop.org>;
	Tue, 18 Dec 2012 09:05:48 -0800 (PST)
Received: from dude.hi.pengutronix.de ([2001:6f8:1178:2:21e:67ff:fe11:9c5c])
	by metis.ext.pengutronix.de with esmtp (Exim 4.72)
	(envelope-from <str@pengutronix.de>)
	id 1Tl0bt-00028Z-Nj; Tue, 18 Dec 2012 18:05:41 +0100
Received: from str by dude.hi.pengutronix.de with local (Exim 4.80)
	(envelope-from <str@pengutronix.de>)
	id 1Tl0bt-0002y8-6l; Tue, 18 Dec 2012 18:05:41 +0100
From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
To: devicetree-discuss@lists.ozlabs.org
Subject: [PATCHv16 6/7] drm_modes: add videomode helpers
Date: Tue, 18 Dec 2012 18:04:15 +0100
Message-Id: <1355850256-16135-7-git-send-email-s.trumtrar@pengutronix.de>
X-Mailer: git-send-email 1.7.10.4
In-Reply-To: <1355850256-16135-1-git-send-email-s.trumtrar@pengutronix.de>
References: <1355850256-16135-1-git-send-email-s.trumtrar@pengutronix.de>
X-SA-Exim-Connect-IP: 2001:6f8:1178:2:21e:67ff:fe11:9c5c
X-SA-Exim-Mail-From: str@pengutronix.de
X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de);
	SAEximRunCond expanded to false
X-PTX-Original-Recipient: dri-devel@lists.freedesktop.org
Cc: linux-fbdev@vger.kernel.org, Stephen Warren <swarren@wwwdotorg.org>,
	Florian Tobias Schandinat <FlorianSchandinat@gmx.de>,
	dri-devel@lists.freedesktop.org, Tomi Valkeinen <tomi.valkeinen@ti.com>,
	Rob Herring <robherring2@gmail.com>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	kernel@pengutronix.de, Steffen Trumtrar <s.trumtrar@pengutronix.de>,
	Guennady Liakhovetski <g.liakhovetski@gmx.de>,
	linux-media@vger.kernel.org
X-BeenThere: dri-devel@lists.freedesktop.org
X-Mailman-Version: 2.1.13
Precedence: list
List-Id: Direct Rendering Infrastructure - Development
	<dri-devel.lists.freedesktop.org>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/dri-devel>,
	<mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/dri-devel>
List-Post: <mailto:dri-devel@lists.freedesktop.org>
List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/dri-devel>,
	<mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe>
MIME-Version: 1.0
Sender: 
 dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org
Errors-To: 
 dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org

Add conversion from videomode to drm_display_mode

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 drivers/gpu/drm/drm_modes.c |   37 +++++++++++++++++++++++++++++++++++++
 include/drm/drmP.h          |    5 +++++
 2 files changed, 42 insertions(+)

diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 59450f3..184a22d 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -35,6 +35,7 @@
 #include <linux/export.h>
 #include <drm/drmP.h>
 #include <drm/drm_crtc.h>
+#include <video/videomode.h>
 
 /**
  * drm_mode_debug_printmodeline - debug print a mode
@@ -504,6 +505,42 @@ drm_gtf_mode(struct drm_device *dev, int hdisplay, int vdisplay, int vrefresh,
 }
 EXPORT_SYMBOL(drm_gtf_mode);
 
+#if IS_ENABLED(CONFIG_VIDEOMODE)
+int drm_display_mode_from_videomode(const struct videomode *vm,
+				    struct drm_display_mode *dmode)
+{
+	dmode->hdisplay = vm->hactive;
+	dmode->hsync_start = dmode->hdisplay + vm->hfront_porch;
+	dmode->hsync_end = dmode->hsync_start + vm->hsync_len;
+	dmode->htotal = dmode->hsync_end + vm->hback_porch;
+
+	dmode->vdisplay = vm->vactive;
+	dmode->vsync_start = dmode->vdisplay + vm->vfront_porch;
+	dmode->vsync_end = dmode->vsync_start + vm->vsync_len;
+	dmode->vtotal = dmode->vsync_end + vm->vback_porch;
+
+	dmode->clock = vm->pixelclock / 1000;
+
+	dmode->flags = 0;
+	if (vm->dmt_flags & VESA_DMT_HSYNC_HIGH)
+		dmode->flags |= DRM_MODE_FLAG_PHSYNC;
+	else if (vm->dmt_flags & VESA_DMT_HSYNC_LOW)
+		dmode->flags |= DRM_MODE_FLAG_NHSYNC;
+	if (vm->dmt_flags & VESA_DMT_VSYNC_HIGH)
+		dmode->flags |= DRM_MODE_FLAG_PVSYNC;
+	else if (vm->dmt_flags & VESA_DMT_VSYNC_LOW)
+		dmode->flags |= DRM_MODE_FLAG_NVSYNC;
+	if (vm->data_flags & DISPLAY_FLAGS_INTERLACED)
+		dmode->flags |= DRM_MODE_FLAG_INTERLACE;
+	if (vm->data_flags & DISPLAY_FLAGS_DOUBLESCAN)
+		dmode->flags |= DRM_MODE_FLAG_DBLSCAN;
+	drm_mode_set_name(dmode);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(drm_display_mode_from_videomode);
+#endif
+
 /**
  * drm_mode_set_name - set the name on a mode
  * @mode: name will be set in this mode
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 3fd8280..5fbb0fe 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -85,6 +85,8 @@ struct module;
 struct drm_file;
 struct drm_device;
 
+struct videomode;
+
 #include <drm/drm_os_linux.h>
 #include <drm/drm_hashtab.h>
 #include <drm/drm_mm.h>
@@ -1454,6 +1456,9 @@ extern struct drm_display_mode *
 drm_mode_create_from_cmdline_mode(struct drm_device *dev,
 				  struct drm_cmdline_mode *cmd);
 
+extern int drm_display_mode_from_videomode(const struct videomode *vm,
+					   struct drm_display_mode *dmode);
+
 /* Modesetting support */
 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);