From patchwork Wed Aug 31 11:00:54 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 1115442 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter2.kernel.org (8.14.4/8.14.4) with ESMTP id p7VB0ZOP023798 for ; Wed, 31 Aug 2011 11:00:36 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754939Ab1HaLAf (ORCPT ); Wed, 31 Aug 2011 07:00:35 -0400 Received: from perceval.ideasonboard.com ([95.142.166.194]:54385 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753427Ab1HaLAe (ORCPT ); Wed, 31 Aug 2011 07:00:34 -0400 Received: from localhost.localdomain (unknown [91.178.27.34]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 411B035AA9; Wed, 31 Aug 2011 11:00:33 +0000 (UTC) From: Laurent Pinchart To: linux-fbdev@vger.kernel.org Cc: linux-sh@vger.kernel.org, magnus.damm@gmail.com, dhobsong@igel.co.jp Subject: [PATCH v2 3/8] fbdev: sh_mobile_lcdc: Add support for format changes at runtime Date: Wed, 31 Aug 2011 13:00:54 +0200 Message-Id: <1314788459-31791-4-git-send-email-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 1.7.3.4 In-Reply-To: <1314788459-31791-1-git-send-email-laurent.pinchart@ideasonboard.com> References: <1314788459-31791-1-git-send-email-laurent.pinchart@ideasonboard.com> Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter2.kernel.org [140.211.167.43]); Wed, 31 Aug 2011 11:00:36 +0000 (UTC) Implement .fb_set_par to support frame buffer format changes at runtime. Signed-off-by: Laurent Pinchart --- drivers/video/sh_mobile_lcdcfb.c | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-) diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c index 33b0ff8..f9f420d 100644 --- a/drivers/video/sh_mobile_lcdcfb.c +++ b/drivers/video/sh_mobile_lcdcfb.c @@ -1154,6 +1154,19 @@ static int sh_mobile_check_var(struct fb_var_screeninfo *var, struct fb_info *in return 0; } +static int sh_mobile_set_par(struct fb_info *info) +{ + struct sh_mobile_lcdc_chan *ch = info->par; + int ret; + + sh_mobile_lcdc_stop(ch->lcdc); + ret = sh_mobile_lcdc_start(ch->lcdc); + if (ret < 0) + dev_err(info->dev, "%s: unable to restart LCDC\n", __func__); + + return ret; +} + /* * Screen blanking. Behavior is as follows: * FB_BLANK_UNBLANK: screen unblanked, clocks enabled @@ -1211,6 +1224,7 @@ static struct fb_ops sh_mobile_lcdc_ops = { .fb_open = sh_mobile_open, .fb_release = sh_mobile_release, .fb_check_var = sh_mobile_check_var, + .fb_set_par = sh_mobile_set_par, }; static int sh_mobile_lcdc_update_bl(struct backlight_device *bdev)