From patchwork Tue Mar 14 18:59:47 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Niklas_S=C3=B6derlund?= X-Patchwork-Id: 9624355 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EB75060522 for ; Tue, 14 Mar 2017 19:10:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DF93328113 for ; Tue, 14 Mar 2017 19:10:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D47CB28583; Tue, 14 Mar 2017 19:10:27 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9429628582 for ; Tue, 14 Mar 2017 19:10:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752209AbdCNTKZ (ORCPT ); Tue, 14 Mar 2017 15:10:25 -0400 Received: from smtp-3.sys.kth.se ([130.237.48.192]:47142 "EHLO smtp-3.sys.kth.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750991AbdCNTKH (ORCPT ); Tue, 14 Mar 2017 15:10:07 -0400 Received: from smtp-3.sys.kth.se (localhost.localdomain [127.0.0.1]) by smtp-3.sys.kth.se (Postfix) with ESMTP id 49F2B3355; Tue, 14 Mar 2017 20:00:48 +0100 (CET) X-Virus-Scanned: by amavisd-new at kth.se Received: from smtp-3.sys.kth.se ([127.0.0.1]) by smtp-3.sys.kth.se (smtp-3.sys.kth.se [127.0.0.1]) (amavisd-new, port 10024) with LMTP id wuNicQxY1B41; Tue, 14 Mar 2017 20:00:47 +0100 (CET) X-KTH-Auth: niso [89.233.230.99] X-KTH-mail-from: niklas.soderlund+renesas@ragnatech.se Received: from bismarck.berto.se (unknown [89.233.230.99]) by smtp-3.sys.kth.se (Postfix) with ESMTPSA id 618012CEC; Tue, 14 Mar 2017 20:00:47 +0100 (CET) From: =?UTF-8?q?Niklas=20S=C3=B6derlund?= To: Laurent Pinchart , Hans Verkuil Cc: linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org, tomoharu.fukawa.eb@renesas.com, Sakari Ailus , Geert Uytterhoeven , =?UTF-8?q?Niklas=20S=C3=B6derlund?= Subject: [PATCH 06/16] rcar-vin: refactor pad lookup code Date: Tue, 14 Mar 2017 19:59:47 +0100 Message-Id: <20170314185957.25253-7-niklas.soderlund+renesas@ragnatech.se> X-Mailer: git-send-email 2.12.0 In-Reply-To: <20170314185957.25253-1-niklas.soderlund+renesas@ragnatech.se> References: <20170314185957.25253-1-niklas.soderlund+renesas@ragnatech.se> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The pad lookup code can be broken out to increase readability and to reduce code duplication. Signed-off-by: Niklas Söderlund --- drivers/media/platform/rcar-vin/rcar-v4l2.c | 38 +++++++++++++++++------------ 1 file changed, 23 insertions(+), 15 deletions(-) diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c index 1a75191539b0e7d7..ce29a21888da48d5 100644 --- a/drivers/media/platform/rcar-vin/rcar-v4l2.c +++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c @@ -870,11 +870,25 @@ static void rvin_notify(struct v4l2_subdev *sd, } } +static int rvin_find_pad(struct v4l2_subdev *sd, int direction) +{ + unsigned int pad; + + if (sd->entity.num_pads <= 1) + return 0; + + for (pad = 0; pad < sd->entity.num_pads; pad++) + if (sd->entity.pads[pad].flags & direction) + return pad; + + return -EINVAL; +} + int rvin_v4l2_probe(struct rvin_dev *vin) { struct video_device *vdev = &vin->vdev; struct v4l2_subdev *sd = vin_to_source(vin); - int pad_idx, ret; + int ret; v4l2_set_subdev_hostdata(sd, vin); @@ -920,21 +934,15 @@ int rvin_v4l2_probe(struct rvin_dev *vin) vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; - vin->digital.source_pad = 0; - for (pad_idx = 0; pad_idx < sd->entity.num_pads; pad_idx++) - if (sd->entity.pads[pad_idx].flags == MEDIA_PAD_FL_SOURCE) - break; - if (pad_idx >= sd->entity.num_pads) - return -EINVAL; - - vin->digital.source_pad = pad_idx; + ret = rvin_find_pad(sd, MEDIA_PAD_FL_SOURCE); + if (ret < 0) + return ret; + vin->digital.source_pad = ret; - vin->digital.sink_pad = 0; - for (pad_idx = 0; pad_idx < sd->entity.num_pads; pad_idx++) - if (sd->entity.pads[pad_idx].flags == MEDIA_PAD_FL_SINK) { - vin->digital.sink_pad = pad_idx; - break; - } + ret = rvin_find_pad(sd, MEDIA_PAD_FL_SINK); + if (ret < 0) + return ret; + vin->digital.sink_pad = ret; vin->format.pixelformat = RVIN_DEFAULT_FORMAT; rvin_reset_format(vin);