From patchwork Tue Jan 5 15:27:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 11999319 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4571C433E9 for ; Tue, 5 Jan 2021 15:32:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 859B422AAA for ; Tue, 5 Jan 2021 15:32:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727921AbhAEPcS (ORCPT ); Tue, 5 Jan 2021 10:32:18 -0500 Received: from perceval.ideasonboard.com ([213.167.242.64]:37698 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727520AbhAEPcS (ORCPT ); Tue, 5 Jan 2021 10:32:18 -0500 Received: from pendragon.lan (62-78-145-57.bb.dnainternet.fi [62.78.145.57]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 3367D8C7; Tue, 5 Jan 2021 16:29:45 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1609860585; bh=NUgr9hSWWTriSRDVBB4dUVb/4DY7J2xUZtyjjhr88S4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ks4DVb9hLtJZSbv/k1mH9CKTkyzlPEZZ7K8TWAUtdrTIkjL0WwMX83JmMqjDyih0x fgeSludpvzsVdLETP52IG+SzYx/AQhN73nKD/+LHRYPRYofJBUv9SWKS0WfuKZIhVK gZDicgqsew9wfAe2fSKayFZsAsupm4n3Z5naCXlk= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Rui Miguel Silva , Steve Longerbeam , Philipp Zabel , Ezequiel Garcia Subject: [PATCH 14/75] media: imx: capture: Move queue and ctrl handler init to init function Date: Tue, 5 Jan 2021 17:27:51 +0200 Message-Id: <20210105152852.5733-15-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210105152852.5733-1-laurent.pinchart@ideasonboard.com> References: <20210105152852.5733-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Move the initialization of the vb2 queue and the control handler to the imx_media_capture_device_init() function. There's no need to delay them until the registration time. Signed-off-by: Laurent Pinchart Reviewed-by: Philipp Zabel --- drivers/staging/media/imx/imx-media-capture.c | 51 ++++++++++--------- 1 file changed, 27 insertions(+), 24 deletions(-) diff --git a/drivers/staging/media/imx/imx-media-capture.c b/drivers/staging/media/imx/imx-media-capture.c index 4f9cff62eb1f..d7cc1423b71e 100644 --- a/drivers/staging/media/imx/imx-media-capture.c +++ b/drivers/staging/media/imx/imx-media-capture.c @@ -725,7 +725,6 @@ int imx_media_capture_device_register(struct imx_media_video_dev *vdev) struct v4l2_subdev *sd = priv->src_sd; struct v4l2_device *v4l2_dev = sd->v4l2_dev; struct video_device *vfd = vdev->vfd; - struct vb2_queue *vq = &priv->q; struct v4l2_subdev_format fmt_src; int ret; @@ -740,25 +739,6 @@ int imx_media_capture_device_register(struct imx_media_video_dev *vdev) return ret; } - vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - vq->io_modes = VB2_MMAP | VB2_DMABUF; - vq->drv_priv = priv; - vq->buf_struct_size = sizeof(struct imx_media_buffer); - vq->ops = &capture_qops; - vq->mem_ops = &vb2_dma_contig_memops; - vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - vq->lock = &priv->mutex; - vq->min_buffers_needed = 2; - vq->dev = priv->dev; - - ret = vb2_queue_init(vq); - if (ret) { - dev_err(priv->dev, "vb2_queue_init failed\n"); - goto unreg; - } - - INIT_LIST_HEAD(&priv->ready_q); - /* create the link from the src_sd devnode pad to device node */ ret = media_create_pad_link(&sd->entity, priv->src_sd_pad, &vfd->entity, 0, 0); @@ -787,8 +767,6 @@ int imx_media_capture_device_register(struct imx_media_video_dev *vdev) dev_info(priv->dev, "Registered %s as /dev/%s\n", vfd->name, video_device_node_name(vfd)); - vfd->ctrl_handler = &priv->ctrl_hdlr; - /* add vdev to the video device list */ imx_media_add_video_device(priv->md, vdev); @@ -821,6 +799,7 @@ imx_media_capture_device_init(struct device *dev, struct v4l2_subdev *src_sd, { struct capture_priv *priv; struct video_device *vfd; + struct vb2_queue *vq; int ret; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); @@ -832,8 +811,10 @@ imx_media_capture_device_init(struct device *dev, struct v4l2_subdev *src_sd, priv->dev = dev; mutex_init(&priv->mutex); + INIT_LIST_HEAD(&priv->ready_q); spin_lock_init(&priv->q_lock); + /* Allocate and initialize the video device. */ snprintf(capture_videodev.name, sizeof(capture_videodev.name), "%s capture", src_sd->name); @@ -844,8 +825,12 @@ imx_media_capture_device_init(struct device *dev, struct v4l2_subdev *src_sd, *vfd = capture_videodev; vfd->lock = &priv->mutex; vfd->queue = &priv->q; + + video_set_drvdata(vfd, priv); priv->vdev.vfd = vfd; + INIT_LIST_HEAD(&priv->vdev.list); + /* Initialize the video device pad. */ priv->vdev_pad.flags = MEDIA_PAD_FL_SINK; ret = media_entity_pads_init(&vfd->entity, 1, &priv->vdev_pad); if (ret) { @@ -853,11 +838,29 @@ imx_media_capture_device_init(struct device *dev, struct v4l2_subdev *src_sd, return ERR_PTR(ret); } - INIT_LIST_HEAD(&priv->vdev.list); + /* Initialize the vb2 queue. */ + vq = &priv->q; + vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + vq->io_modes = VB2_MMAP | VB2_DMABUF; + vq->drv_priv = priv; + vq->buf_struct_size = sizeof(struct imx_media_buffer); + vq->ops = &capture_qops; + vq->mem_ops = &vb2_dma_contig_memops; + vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + vq->lock = &priv->mutex; + vq->min_buffers_needed = 2; + vq->dev = priv->dev; - video_set_drvdata(vfd, priv); + ret = vb2_queue_init(vq); + if (ret) { + dev_err(priv->dev, "vb2_queue_init failed\n"); + video_device_release(vfd); + return ERR_PTR(ret); + } + /* Initialize the control handler. */ v4l2_ctrl_handler_init(&priv->ctrl_hdlr, 0); + vfd->ctrl_handler = &priv->ctrl_hdlr; return &priv->vdev; }