From patchwork Fri Apr 3 21:33:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Helen Mae Koike Fornazier X-Patchwork-Id: 11473687 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6491A92C for ; Fri, 3 Apr 2020 21:33:47 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 433DA206F6 for ; Fri, 3 Apr 2020 21:33:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="lrbqH0Ev" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 433DA206F6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=vwG3JRzrltBE7UNfKeAvBsr0XeoNtoNNptQVMm6Q5wk=; b=lrbqH0EvdgtHUR GkS/ag51ALXGu8fRkD3Bw9/r1ccUI3PTbRYPUMMnhLUKnKayQ+Lb/coZ6reewC/GPv9V8VGnBMdCI 7w2WZD0hKkXm0WToj4jLpX9RFHddq+7YALyyr32UfP6tY/bVRYBOrEKLnhvZFhOYzVsUg0gybd0Js o3Fm68//XvHK643ErOpsjLj4FHxLZsXoZG5XDTLDlXgNpos6ayQexaM4OaWW9r3tGY3/OeHyBUMRa ryyRnGhmdbP8JPAKoyWVVqS4weS06VaH4kxKTFLd0a25Z3PjDii4eWXD48/0iS7yTQ0qkLPubtwdB 8lbUOuDcj94OYt1pxCrQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jKTwe-0006IX-GX; Fri, 03 Apr 2020 21:33:44 +0000 Received: from bhuna.collabora.co.uk ([46.235.227.227]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jKTwb-0006GN-PJ for linux-rockchip@lists.infradead.org; Fri, 03 Apr 2020 21:33:43 +0000 Received: from floko.floko.floko (unknown [IPv6:2804:431:e7cc:11ff:4f80:3de:e2b2:5c1d]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: koike) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 97D4F2935F9; Fri, 3 Apr 2020 22:33:35 +0100 (BST) From: Helen Koike To: linux-media@vger.kernel.org Subject: [PATCH v2 2/3] media: staging: rkisp1: use v4l2_pipeline_stream_{enable, disable} helpers Date: Fri, 3 Apr 2020 18:33:11 -0300 Message-Id: <20200403213312.1863876-3-helen.koike@collabora.com> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200403213312.1863876-1-helen.koike@collabora.com> References: <20200403213312.1863876-1-helen.koike@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200403_143341_952148_65B483C3 X-CRM114-Status: GOOD ( 13.49 ) X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [46.235.227.227 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mchehab@kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, Helen Koike , hans.verkuil@cisco.com, skhan@linuxfoundation.org, niklas.soderlund@ragnatech.se, kernel@collabora.com Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org Use v4l2_pipeline_stream_{enable,disable} to call .s_stream() subdevice callbacks through the pipeline. Tested by streaming on RockPi4 with imx219 and on Scarlet Chromebook. Signed-off-by: Helen Koike --- Changes in v2: - rebase on top of new helpers prototypes drivers/staging/media/rkisp1/rkisp1-capture.c | 76 +------------------ 1 file changed, 3 insertions(+), 73 deletions(-) diff --git a/drivers/staging/media/rkisp1/rkisp1-capture.c b/drivers/staging/media/rkisp1/rkisp1-capture.c index 24fe6a7888aa4..0c2a357c4a12a 100644 --- a/drivers/staging/media/rkisp1/rkisp1-capture.c +++ b/drivers/staging/media/rkisp1/rkisp1-capture.c @@ -838,71 +838,6 @@ static void rkisp1_return_all_buffers(struct rkisp1_capture *cap, spin_unlock_irqrestore(&cap->buf.lock, flags); } -/* - * rkisp1_pipeline_sink_walk - Walk through the pipeline and call cb - * @from: entity at which to start pipeline walk - * @until: entity at which to stop pipeline walk - * - * Walk the entities chain starting at the pipeline video node and stop - * all subdevices in the chain. - * - * If the until argument isn't NULL, stop the pipeline walk when reaching the - * until entity. This is used to disable a partially started pipeline due to a - * subdev start error. - */ -static int rkisp1_pipeline_sink_walk(struct media_entity *from, - struct media_entity *until, - int (*cb)(struct media_entity *from, - struct media_entity *curr)) -{ - struct media_entity *entity = from; - struct media_pad *pad; - unsigned int i; - int ret; - - while (1) { - pad = NULL; - /* Find remote source pad */ - for (i = 0; i < entity->num_pads; i++) { - struct media_pad *spad = &entity->pads[i]; - - if (!(spad->flags & MEDIA_PAD_FL_SINK)) - continue; - pad = media_entity_remote_pad(spad); - if (pad && is_media_entity_v4l2_subdev(pad->entity)) - break; - } - if (!pad || !is_media_entity_v4l2_subdev(pad->entity)) - break; - - entity = pad->entity; - if (entity == until) - break; - - ret = cb(from, entity); - if (ret) - return ret; - } - - return 0; -} - -static int rkisp1_pipeline_disable_cb(struct media_entity *from, - struct media_entity *curr) -{ - struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(curr); - - return v4l2_subdev_call(sd, video, s_stream, false); -} - -static int rkisp1_pipeline_enable_cb(struct media_entity *from, - struct media_entity *curr) -{ - struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(curr); - - return v4l2_subdev_call(sd, video, s_stream, true); -} - static void rkisp1_stream_stop(struct rkisp1_capture *cap) { int ret; @@ -929,11 +864,7 @@ static void rkisp1_vb2_stop_streaming(struct vb2_queue *queue) rkisp1_stream_stop(cap); media_pipeline_stop(&node->vdev.entity); - ret = rkisp1_pipeline_sink_walk(&node->vdev.entity, NULL, - rkisp1_pipeline_disable_cb); - if (ret) - dev_err(rkisp1->dev, - "pipeline stream-off failed error:%d\n", ret); + v4l2_pipeline_stream_disable(&node->vdev); rkisp1_return_all_buffers(cap, VB2_BUF_STATE_ERROR); @@ -1005,8 +936,7 @@ rkisp1_vb2_start_streaming(struct vb2_queue *queue, unsigned int count) rkisp1_stream_start(cap); /* start sub-devices */ - ret = rkisp1_pipeline_sink_walk(entity, NULL, - rkisp1_pipeline_enable_cb); + ret = v4l2_pipeline_stream_enable(&cap->vnode.vdev); if (ret) goto err_stop_stream; @@ -1019,7 +949,7 @@ rkisp1_vb2_start_streaming(struct vb2_queue *queue, unsigned int count) return 0; err_pipe_disable: - rkisp1_pipeline_sink_walk(entity, NULL, rkisp1_pipeline_disable_cb); + v4l2_pipeline_stream_disable(entity, &cap->rkisp1->pipe); err_stop_stream: rkisp1_stream_stop(cap); v4l2_pipeline_pm_put(entity);