From patchwork Wed Nov 2 13:23:08 2016 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: 9409175 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 0474C6022E for ; Wed, 2 Nov 2016 13:30:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E643E2A17C for ; Wed, 2 Nov 2016 13:30:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DAECF2A17E; Wed, 2 Nov 2016 13:30:52 +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 5BD342A17C for ; Wed, 2 Nov 2016 13:30:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754501AbcKBNat (ORCPT ); Wed, 2 Nov 2016 09:30:49 -0400 Received: from smtp-4.sys.kth.se ([130.237.48.193]:49467 "EHLO smtp-4.sys.kth.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754222AbcKBN3j (ORCPT ); Wed, 2 Nov 2016 09:29:39 -0400 Received: from smtp-4.sys.kth.se (localhost.localdomain [127.0.0.1]) by smtp-4.sys.kth.se (Postfix) with ESMTP id AD5AD3209; Wed, 2 Nov 2016 14:29:38 +0100 (CET) X-Virus-Scanned: by amavisd-new at kth.se Received: from smtp-4.sys.kth.se ([127.0.0.1]) by smtp-4.sys.kth.se (smtp-4.sys.kth.se [127.0.0.1]) (amavisd-new, port 10024) with LMTP id HVf35Vy_pijL; Wed, 2 Nov 2016 14:29:38 +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-4.sys.kth.se (Postfix) with ESMTPSA id AABFBC12; Wed, 2 Nov 2016 14:29:37 +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 , =?UTF-8?q?Niklas=20S=C3=B6derlund?= Subject: [PATCH 11/32] media: rcar-vin: refactor pad lookup code Date: Wed, 2 Nov 2016 14:23:08 +0100 Message-Id: <20161102132329.436-12-niklas.soderlund+renesas@ragnatech.se> X-Mailer: git-send-email 2.10.2 In-Reply-To: <20161102132329.436-1-niklas.soderlund+renesas@ragnatech.se> References: <20161102132329.436-1-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 code to lookup which pad is source and sink can be broken out to a helper function. A bad check is also dropped in this refactoring. If the subdeivce don't supply pad information the driver would not be able to use it if the check is kept. Signed-off-by: Niklas Söderlund --- drivers/media/platform/rcar-vin/rcar-core.c | 29 +++++++++++++---------------- 1 file changed, 13 insertions(+), 16 deletions(-) diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c index fb6368c..50058fe 100644 --- a/drivers/media/platform/rcar-vin/rcar-core.c +++ b/drivers/media/platform/rcar-vin/rcar-core.c @@ -66,11 +66,21 @@ static bool rvin_mbus_supported(struct rvin_graph_entity *entity) return false; } +static unsigned int rvin_pad_idx(struct v4l2_subdev *sd, int direction) +{ + unsigned int pad_idx; + + for (pad_idx = 0; pad_idx < sd->entity.num_pads; pad_idx++) + if (sd->entity.pads[pad_idx].flags == direction) + return pad_idx; + + return 0; +} + static int rvin_digital_notify_complete(struct v4l2_async_notifier *notifier) { struct rvin_dev *vin = notifier_to_vin(notifier); struct v4l2_subdev *sd = vin->digital.subdev; - unsigned int pad_idx; int ret; /* Verify subdevices mbus format */ @@ -84,21 +94,8 @@ static int rvin_digital_notify_complete(struct v4l2_async_notifier *notifier) vin->digital.subdev->name, vin->digital.code); /* Figure out source and sink pad ids */ - vin->digital.source_pad_idx = 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_idx = pad_idx; - - vin->digital.sink_pad_idx = 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_idx = pad_idx; - break; - } + vin->digital.source_pad_idx = rvin_pad_idx(sd, MEDIA_PAD_FL_SOURCE); + vin->digital.sink_pad_idx = rvin_pad_idx(sd, MEDIA_PAD_FL_SINK); vin_dbg(vin, "Found media pads for %s source: %d sink %d\n", vin->digital.subdev->name, vin->digital.source_pad_idx,