From patchwork Wed Sep 5 21:48:53 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rob Clark X-Patchwork-Id: 1411191 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id B44BCDF28C for ; Wed, 5 Sep 2012 21:48:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759597Ab2IEVs5 (ORCPT ); Wed, 5 Sep 2012 17:48:57 -0400 Received: from mail-ob0-f174.google.com ([209.85.214.174]:51072 "EHLO mail-ob0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754177Ab2IEVs4 (ORCPT ); Wed, 5 Sep 2012 17:48:56 -0400 Received: by obbuo13 with SMTP id uo13so1253833obb.19 for ; Wed, 05 Sep 2012 14:48:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:x-mailer; bh=CNS+cUQFpPuftBiarb9d+1YvFkMF2BPP8VncIXvvtw8=; b=SJWCtHl36NfQn8hNoN84v76H784HAKS2H2N7In55PgR+vnA9g9tf9s+N6ShPu8Tn25 1kEurT23ykcpdLNoOVSqJxnHI2j9xbqA5WbyA3bx6maGggPoRK9P5IcWYiZMuJm+tx/Y nhOxTsNwjew5v4vYTP6DRIueV2xKstK5LK1ku+881OjrBFO44rYQkjwft0l/KJ/OqgFP xnH9qf/CzuXvKLw9pssjzJHypP6nNOelGliM/dsYT9ty6rNr7UtobqsnTjgZUnZ15aux Xn3ignuG184d/T32HRUH4IAck2lEwJjK8i9AfUcPc9+kBuz9+m/k7IjY20dWY9Lh9NN/ 4cjw== Received: by 10.60.29.40 with SMTP id g8mr18142030oeh.25.1346881736256; Wed, 05 Sep 2012 14:48:56 -0700 (PDT) Received: from localhost (dragon.ti.com. [192.94.94.33]) by mx.google.com with ESMTPS id hz6sm186735obb.1.2012.09.05.14.48.55 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 05 Sep 2012 14:48:55 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org, linux-omap@vger.kernel.org Cc: patches@linaro.org, Greg KH , Tomi Valkeinen , Andy Gross , Rob Clark Subject: [PATCH] drm/omap: update for interlaced Date: Wed, 5 Sep 2012 16:48:53 -0500 Message-Id: <1346881733-31970-1-git-send-email-rob.clark@linaro.org> X-Mailer: git-send-email 1.7.9.5 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org From: Rob Clark 'struct omap_video_timings' was updated w/ a 'bool interlaced'. Without a matching update in omap_connector, this field could have undefined values from the stack, which isn't quite ideal. Update the fxns to convert omapdss<->drm timings structs, and zero-init 'struct omap_video_timings' when it is declared on stack to avoid issues like this in the future. Signed-off-by: Rob Clark Reviewed-by: Sumit Semwal --- drivers/staging/omapdrm/omap_connector.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/staging/omapdrm/omap_connector.c b/drivers/staging/omapdrm/omap_connector.c index 5e2856c..5f4a89b 100644 --- a/drivers/staging/omapdrm/omap_connector.c +++ b/drivers/staging/omapdrm/omap_connector.c @@ -48,13 +48,10 @@ static inline void copy_timings_omap_to_drm(struct drm_display_mode *mode, mode->vsync_end = mode->vsync_start + timings->vsw; mode->vtotal = mode->vsync_end + timings->vbp; - /* note: whether or not it is interlaced, +/- h/vsync, etc, - * which should be set in the mode flags, is not exposed in - * the omap_video_timings struct.. but hdmi driver tracks - * those separately so all we have to have to set the mode - * is the way to recover these timings values, and the - * omap_dss_driver would do the rest. - */ + mode->flags = 0; + + if (timings->interlace) + mode->flags |= DRM_MODE_FLAG_INTERLACE; } static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings, @@ -71,6 +68,8 @@ static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings, timings->vfp = mode->vsync_start - mode->vdisplay; timings->vsw = mode->vsync_end - mode->vsync_start; timings->vbp = mode->vtotal - mode->vsync_end; + + timings->interlace = !!(mode->flags & DRM_MODE_FLAG_INTERLACE); } static void omap_connector_dpms(struct drm_connector *connector, int mode) @@ -187,7 +186,7 @@ static int omap_connector_get_modes(struct drm_connector *connector) } } else { struct drm_display_mode *mode = drm_mode_create(dev); - struct omap_video_timings timings; + struct omap_video_timings timings = {0}; dssdrv->get_timings(dssdev, &timings); @@ -291,7 +290,7 @@ void omap_connector_mode_set(struct drm_connector *connector, struct omap_connector *omap_connector = to_omap_connector(connector); struct omap_dss_device *dssdev = omap_connector->dssdev; struct omap_dss_driver *dssdrv = dssdev->driver; - struct omap_video_timings timings; + struct omap_video_timings timings = {0}; copy_timings_drm_to_omap(&timings, mode);