From patchwork Thu Jul 5 20:38:43 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 1162201 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 595963FE4F for ; Thu, 5 Jul 2012 20:39:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754114Ab2GEUir (ORCPT ); Thu, 5 Jul 2012 16:38:47 -0400 Received: from perceval.ideasonboard.com ([95.142.166.194]:60436 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751025Ab2GEUiq (ORCPT ); Thu, 5 Jul 2012 16:38:46 -0400 Received: from avalon.ideasonboard.com (unknown [91.178.211.171]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id BBD787ADC; Thu, 5 Jul 2012 22:38:43 +0200 (CEST) From: Laurent Pinchart To: Guennadi Liakhovetski Cc: linux-media@vger.kernel.org Subject: [PATCH v2 4/9] ov772x: Don't access the device in the g_mbus_fmt operation Date: Thu, 5 Jul 2012 22:38:43 +0200 Message-Id: <1341520728-2707-5-git-send-email-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 1.7.8.6 In-Reply-To: <1341520728-2707-1-git-send-email-laurent.pinchart@ideasonboard.com> References: <1341520728-2707-1-git-send-email-laurent.pinchart@ideasonboard.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The g_mbus_fmt operation only needs to return the current mbus frame format and doesn't need to configure the hardware to do so. Fix it to avoid requiring the chip to be powered on when calling the operation. Signed-off-by: Laurent Pinchart --- drivers/media/video/ov772x.c | 8 ++------ 1 files changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/media/video/ov772x.c b/drivers/media/video/ov772x.c index 74e77d3..6d79b89 100644 --- a/drivers/media/video/ov772x.c +++ b/drivers/media/video/ov772x.c @@ -880,15 +880,11 @@ static int ov772x_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a) static int ov772x_g_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) { - struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov772x_priv *priv = container_of(sd, struct ov772x_priv, subdev); if (!priv->win || !priv->cfmt) { - u32 width = VGA_WIDTH, height = VGA_HEIGHT; - int ret = ov772x_set_params(client, &width, &height, - V4L2_MBUS_FMT_YUYV8_2X8); - if (ret < 0) - return ret; + priv->cfmt = &ov772x_cfmts[0]; + priv->win = ov772x_select_win(VGA_WIDTH, VGA_HEIGHT); } mf->width = priv->win->width;