From patchwork Mon Dec 11 13:32:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 13487224 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="Z1+Dpcui" X-Greylist: delayed 332 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Mon, 11 Dec 2023 05:38:31 PST Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8E22CCF; Mon, 11 Dec 2023 05:38:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1702301578; bh=edVFnL2j5l5HKB0Sl3Jd0NzkPd4yaAf/Dv5iIFI9N78=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Z1+DpcuiRDiWptwLmz3mOgvCgJ/K20MQt/KrRY0dbCuc5lZm4DY4RjJ/ysIMjj63C UVZk7Lnvty9g0J62//jN253VestRaad0G79Kg0PIhV83dfhbhpnMCvdjo+IIfxJQER QHWqFu5xholnntsWhCC1qrqJTQ5oFmUKb/aviT1Tp+edsAMzCkxUNlcHdMqJqFpLp1 geVJlvEw2FQUtU4oZ/mP5brzkUN+Lj+3MfmadJUS4jaL4lFVGrIFmJmgZ2H+ol5nW2 BSl3YovNkWwERW+w80gJWPuXsefyhAFuGPmPciK6s1pAi0Tpjpu4ml7LFfdEv0sVNC IkZImMGSsZz1A== Received: from benjamin-XPS-13-9310.. (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by madrid.collaboradmins.com (Postfix) with ESMTPSA id B2B7F378142C; Mon, 11 Dec 2023 13:32:57 +0000 (UTC) From: Benjamin Gaignard To: hverkuil@xs4all.nl, mchehab@kernel.org, tfiga@chromium.org Cc: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-staging@lists.linux.dev, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH v5 1/3] videobuf2: core: Rename min_buffers_needed field to vb2_queue Date: Mon, 11 Dec 2023 14:32:49 +0100 Message-Id: <20231211133251.150999-2-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231211133251.150999-1-benjamin.gaignard@collabora.com> References: <20231211133251.150999-1-benjamin.gaignard@collabora.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Rename min_buffers_needed into min_queued_buffers and update the documentation about it. Signed-off-by: Benjamin Gaignard --- version 5: - reqbufs minimum allocation is at least q->min_queued_buffers + 1. - rework min_queued_buffers documentation. drivers/input/touchscreen/atmel_mxt_ts.c | 2 +- drivers/input/touchscreen/sur40.c | 2 +- drivers/media/common/saa7146/saa7146_fops.c | 2 +- .../media/common/videobuf2/videobuf2-core.c | 28 +++++++++---------- drivers/media/dvb-core/dvb_vb2.c | 2 +- drivers/media/i2c/video-i2c.c | 2 +- drivers/media/pci/bt8xx/bttv-driver.c | 2 +- drivers/media/pci/cobalt/cobalt-v4l2.c | 2 +- drivers/media/pci/cx18/cx18-streams.c | 2 +- drivers/media/pci/cx23885/cx23885-417.c | 2 +- drivers/media/pci/cx23885/cx23885-dvb.c | 2 +- drivers/media/pci/cx23885/cx23885-video.c | 4 +-- drivers/media/pci/cx25821/cx25821-video.c | 2 +- drivers/media/pci/cx88/cx88-blackbird.c | 2 +- drivers/media/pci/cx88/cx88-dvb.c | 2 +- drivers/media/pci/cx88/cx88-video.c | 4 +-- drivers/media/pci/dt3155/dt3155.c | 2 +- drivers/media/pci/intel/ipu3/ipu3-cio2.c | 2 +- drivers/media/pci/mgb4/mgb4_vin.c | 2 +- drivers/media/pci/mgb4/mgb4_vout.c | 2 +- drivers/media/pci/tw5864/tw5864-video.c | 2 +- drivers/media/pci/tw68/tw68-video.c | 2 +- drivers/media/pci/tw686x/tw686x-video.c | 2 +- drivers/media/pci/zoran/zoran_driver.c | 6 ++-- drivers/media/platform/amphion/vpu_v4l2.c | 4 +-- drivers/media/platform/aspeed/aspeed-video.c | 2 +- drivers/media/platform/atmel/atmel-isi.c | 2 +- .../platform/chips-media/coda/coda-common.c | 2 +- .../platform/microchip/microchip-isc-base.c | 2 +- drivers/media/platform/nuvoton/npcm-video.c | 2 +- drivers/media/platform/nxp/imx7-media-csi.c | 2 +- .../platform/nxp/imx8-isi/imx8-isi-video.c | 2 +- drivers/media/platform/qcom/venus/vdec.c | 4 +-- drivers/media/platform/qcom/venus/venc.c | 4 +-- .../platform/renesas/rcar-vin/rcar-dma.c | 2 +- drivers/media/platform/renesas/renesas-ceu.c | 2 +- .../platform/renesas/rzg2l-cru/rzg2l-video.c | 2 +- drivers/media/platform/renesas/sh_vou.c | 2 +- .../platform/rockchip/rkisp1/rkisp1-capture.c | 2 +- drivers/media/platform/st/sti/hva/hva-v4l2.c | 4 +-- drivers/media/platform/st/stm32/stm32-dcmi.c | 2 +- .../st/stm32/stm32-dcmipp/dcmipp-bytecap.c | 4 +-- .../platform/sunxi/sun4i-csi/sun4i_dma.c | 2 +- .../sunxi/sun6i-csi/sun6i_csi_capture.c | 2 +- .../media/platform/sunxi/sun8i-di/sun8i-di.c | 4 +-- .../sunxi/sun8i-rotate/sun8i_rotate.c | 4 +-- .../media/platform/ti/am437x/am437x-vpfe.c | 2 +- drivers/media/platform/ti/cal/cal-video.c | 2 +- .../media/platform/ti/davinci/vpif_capture.c | 2 +- .../media/platform/ti/davinci/vpif_display.c | 2 +- .../platform/ti/j721e-csi2rx/j721e-csi2rx.c | 2 +- drivers/media/platform/ti/omap/omap_vout.c | 2 +- .../media/test-drivers/vimc/vimc-capture.c | 2 +- drivers/media/test-drivers/vivid/vivid-core.c | 2 +- drivers/media/usb/cx231xx/cx231xx-417.c | 2 +- drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-- drivers/media/usb/dvb-usb/cxusb-analog.c | 2 +- drivers/media/usb/gspca/gspca.c | 6 ++-- .../media/deprecated/atmel/atmel-isc-base.c | 2 +- drivers/staging/media/imx/imx-media-capture.c | 2 +- drivers/staging/media/ipu3/ipu3-v4l2.c | 2 +- drivers/staging/media/meson/vdec/vdec.c | 6 ++-- .../staging/media/starfive/camss/stf-video.c | 2 +- .../media/sunxi/sun6i-isp/sun6i_isp_capture.c | 2 +- .../media/sunxi/sun6i-isp/sun6i_isp_params.c | 2 +- drivers/staging/media/tegra-video/vi.c | 2 +- include/media/videobuf2-core.h | 7 +++-- samples/v4l/v4l2-pci-skeleton.c | 2 +- 68 files changed, 101 insertions(+), 98 deletions(-) diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 20094b9899f0..a2c4b3b87f93 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -2546,7 +2546,7 @@ static const struct vb2_queue mxt_queue = { .ops = &mxt_queue_ops, .mem_ops = &vb2_vmalloc_memops, .timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC, - .min_buffers_needed = 1, + .min_queued_buffers = 1, }; static int mxt_vidioc_querycap(struct file *file, void *priv, diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c index e7d2a52169a0..ae3aab428337 100644 --- a/drivers/input/touchscreen/sur40.c +++ b/drivers/input/touchscreen/sur40.c @@ -1124,7 +1124,7 @@ static const struct vb2_queue sur40_queue = { .ops = &sur40_queue_ops, .mem_ops = &vb2_dma_sg_memops, .timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC, - .min_buffers_needed = 3, + .min_queued_buffers = 3, }; static const struct v4l2_file_operations sur40_video_fops = { diff --git a/drivers/media/common/saa7146/saa7146_fops.c b/drivers/media/common/saa7146/saa7146_fops.c index 79214459387a..a7047e548245 100644 --- a/drivers/media/common/saa7146/saa7146_fops.c +++ b/drivers/media/common/saa7146/saa7146_fops.c @@ -387,7 +387,7 @@ int saa7146_register_device(struct video_device *vfd, struct saa7146_dev *dev, q->gfp_flags = __GFP_DMA32; q->buf_struct_size = sizeof(struct saa7146_buf); q->lock = &dev->v4l2_lock; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->dev = &dev->pci->dev; err = vb2_queue_init(q); if (err) diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c index 40d89f29fa33..8912dff5bde3 100644 --- a/drivers/media/common/videobuf2/videobuf2-core.c +++ b/drivers/media/common/videobuf2/videobuf2-core.c @@ -865,7 +865,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory, /* * Make sure the requested values and current defaults are sane. */ - num_buffers = max_t(unsigned int, *count, q->min_buffers_needed); + num_buffers = max_t(unsigned int, *count, q->min_queued_buffers + 1); num_buffers = min_t(unsigned int, num_buffers, q->max_num_buffers); memset(q->alloc_devs, 0, sizeof(q->alloc_devs)); /* @@ -917,7 +917,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory, * There is no point in continuing if we can't allocate the minimum * number of buffers needed by this vb2_queue. */ - if (allocated_buffers < q->min_buffers_needed) + if (allocated_buffers < q->min_queued_buffers) ret = -ENOMEM; /* @@ -1653,7 +1653,7 @@ EXPORT_SYMBOL_GPL(vb2_core_prepare_buf); * @q: videobuf2 queue * * Attempt to start streaming. When this function is called there must be - * at least q->min_buffers_needed buffers queued up (i.e. the minimum + * at least q->min_queued_buffers queued up (i.e. the minimum * number of buffers required for the DMA engine to function). If the * @start_streaming op fails it is supposed to return all the driver-owned * buffers back to vb2 in state QUEUED. Check if that happened and if @@ -1846,7 +1846,7 @@ int vb2_core_qbuf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb, * then we can finally call start_streaming(). */ if (q->streaming && !q->start_streaming_called && - q->queued_count >= q->min_buffers_needed) { + q->queued_count >= q->min_queued_buffers) { ret = vb2_start_streaming(q); if (ret) { /* @@ -2210,9 +2210,9 @@ int vb2_core_streamon(struct vb2_queue *q, unsigned int type) return -EINVAL; } - if (q_num_bufs < q->min_buffers_needed) { - dprintk(q, 1, "need at least %u allocated buffers\n", - q->min_buffers_needed); + if (q_num_bufs < q->min_queued_buffers) { + dprintk(q, 1, "need at least %u queued buffers\n", + q->min_queued_buffers); return -EINVAL; } @@ -2224,7 +2224,7 @@ int vb2_core_streamon(struct vb2_queue *q, unsigned int type) * Tell driver to start streaming provided sufficient buffers * are available. */ - if (q->queued_count >= q->min_buffers_needed) { + if (q->queued_count >= q->min_queued_buffers) { ret = vb2_start_streaming(q); if (ret) goto unprepare; @@ -2504,7 +2504,7 @@ int vb2_core_queue_init(struct vb2_queue *q) return -EINVAL; if (WARN_ON(q->max_num_buffers > MAX_BUFFER_INDEX) || - WARN_ON(q->min_buffers_needed > q->max_num_buffers)) + WARN_ON(q->min_queued_buffers > q->max_num_buffers)) return -EINVAL; if (WARN_ON(q->requires_requests && !q->supports_requests)) @@ -2512,13 +2512,13 @@ int vb2_core_queue_init(struct vb2_queue *q) /* * This combination is not allowed since a non-zero value of - * q->min_buffers_needed can cause vb2_core_qbuf() to fail if + * q->min_queued_buffers can cause vb2_core_qbuf() to fail if * it has to call start_streaming(), and the Request API expects * that queueing a request (and thus queueing a buffer contained * in that request) will always succeed. There is no method of * propagating an error back to userspace. */ - if (WARN_ON(q->supports_requests && q->min_buffers_needed)) + if (WARN_ON(q->supports_requests && q->min_queued_buffers)) return -EINVAL; INIT_LIST_HEAD(&q->queued_list); @@ -2735,14 +2735,14 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read) return -EBUSY; /* - * Start with q->min_buffers_needed + 1, driver can increase it in + * Start with q->min_queued_buffers + 1, driver can increase it in * queue_setup() * - * 'min_buffers_needed' buffers need to be queued up before you + * 'min_queued_buffers' buffers need to be queued up before you * can start streaming, plus 1 for userspace (or in this case, * kernelspace) processing. */ - count = max(2, q->min_buffers_needed + 1); + count = max(2, q->min_queued_buffers + 1); dprintk(q, 3, "setting up file io: mode %s, count %d, read_once %d, write_immediately %d\n", (read) ? "read" : "write", count, q->fileio_read_once, diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c index 167ff82a6fed..192a8230c4aa 100644 --- a/drivers/media/dvb-core/dvb_vb2.c +++ b/drivers/media/dvb-core/dvb_vb2.c @@ -171,7 +171,7 @@ int dvb_vb2_init(struct dvb_vb2_ctx *ctx, const char *name, int nonblocking) q->io_modes = VB2_MMAP; q->drv_priv = ctx; q->buf_struct_size = sizeof(struct dvb_buffer); - q->min_buffers_needed = 1; + q->min_queued_buffers = 1; q->ops = &dvb_vb2_qops; q->mem_ops = &vb2_vmalloc_memops; q->buf_ops = &dvb_vb2_buf_ops; diff --git a/drivers/media/i2c/video-i2c.c b/drivers/media/i2c/video-i2c.c index ebf2ac98a068..56dbe07a1c99 100644 --- a/drivers/media/i2c/video-i2c.c +++ b/drivers/media/i2c/video-i2c.c @@ -795,7 +795,7 @@ static int video_i2c_probe(struct i2c_client *client) queue->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; queue->drv_priv = data; queue->buf_struct_size = sizeof(struct video_i2c_buffer); - queue->min_buffers_needed = 1; + queue->min_queued_buffers = 1; queue->ops = &video_i2c_video_qops; queue->mem_ops = &vb2_vmalloc_memops; diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c index 49a3dd70ec0f..511f013cc338 100644 --- a/drivers/media/pci/bt8xx/bttv-driver.c +++ b/drivers/media/pci/bt8xx/bttv-driver.c @@ -3113,7 +3113,7 @@ static int vdev_init(struct bttv *btv, struct video_device *vfd, q->gfp_flags = __GFP_DMA32; q->buf_struct_size = sizeof(struct bttv_buffer); q->lock = &btv->lock; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->dev = &btv->c.pci->dev; err = vb2_queue_init(q); if (err) diff --git a/drivers/media/pci/cobalt/cobalt-v4l2.c b/drivers/media/pci/cobalt/cobalt-v4l2.c index 26bf58d17a3d..77ba08ace29f 100644 --- a/drivers/media/pci/cobalt/cobalt-v4l2.c +++ b/drivers/media/pci/cobalt/cobalt-v4l2.c @@ -1260,7 +1260,7 @@ static int cobalt_node_register(struct cobalt *cobalt, int node) q->ops = &cobalt_qops; q->mem_ops = &vb2_dma_sg_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->lock = &s->lock; q->dev = &cobalt->pci_dev->dev; vdev->queue = q; diff --git a/drivers/media/pci/cx18/cx18-streams.c b/drivers/media/pci/cx18/cx18-streams.c index cfbc4a907802..acc6418db425 100644 --- a/drivers/media/pci/cx18/cx18-streams.c +++ b/drivers/media/pci/cx18/cx18-streams.c @@ -287,7 +287,7 @@ static int cx18_stream_init(struct cx18 *cx, int type) s->vidq.ops = &cx18_vb2_qops; s->vidq.mem_ops = &vb2_vmalloc_memops; s->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - s->vidq.min_buffers_needed = 2; + s->vidq.min_queued_buffers = 2; s->vidq.gfp_flags = GFP_DMA32; s->vidq.dev = &cx->pci_dev->dev; s->vidq.lock = &cx->serialize_lock; diff --git a/drivers/media/pci/cx23885/cx23885-417.c b/drivers/media/pci/cx23885/cx23885-417.c index 434677bd4ad1..fdb96f80c036 100644 --- a/drivers/media/pci/cx23885/cx23885-417.c +++ b/drivers/media/pci/cx23885/cx23885-417.c @@ -1525,7 +1525,7 @@ int cx23885_417_register(struct cx23885_dev *dev) q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ; q->gfp_flags = GFP_DMA32; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->drv_priv = dev; q->buf_struct_size = sizeof(struct cx23885_buffer); q->ops = &cx23885_qops; diff --git a/drivers/media/pci/cx23885/cx23885-dvb.c b/drivers/media/pci/cx23885/cx23885-dvb.c index 7551ca4a322a..3d01cdc4c7f3 100644 --- a/drivers/media/pci/cx23885/cx23885-dvb.c +++ b/drivers/media/pci/cx23885/cx23885-dvb.c @@ -2667,7 +2667,7 @@ int cx23885_dvb_register(struct cx23885_tsport *port) q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ; q->gfp_flags = GFP_DMA32; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->drv_priv = port; q->buf_struct_size = sizeof(struct cx23885_buffer); q->ops = &dvb_qops; diff --git a/drivers/media/pci/cx23885/cx23885-video.c b/drivers/media/pci/cx23885/cx23885-video.c index 9af2c5596121..42fdcf992e48 100644 --- a/drivers/media/pci/cx23885/cx23885-video.c +++ b/drivers/media/pci/cx23885/cx23885-video.c @@ -1321,7 +1321,7 @@ int cx23885_video_register(struct cx23885_dev *dev) q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ; q->gfp_flags = GFP_DMA32; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->drv_priv = dev; q->buf_struct_size = sizeof(struct cx23885_buffer); q->ops = &cx23885_video_qops; @@ -1338,7 +1338,7 @@ int cx23885_video_register(struct cx23885_dev *dev) q->type = V4L2_BUF_TYPE_VBI_CAPTURE; q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ; q->gfp_flags = GFP_DMA32; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->drv_priv = dev; q->buf_struct_size = sizeof(struct cx23885_buffer); q->ops = &cx23885_vbi_qops; diff --git a/drivers/media/pci/cx25821/cx25821-video.c b/drivers/media/pci/cx25821/cx25821-video.c index 1b80c990cb94..0bee4b728a60 100644 --- a/drivers/media/pci/cx25821/cx25821-video.c +++ b/drivers/media/pci/cx25821/cx25821-video.c @@ -730,7 +730,7 @@ int cx25821_video_register(struct cx25821_dev *dev) q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; q->io_modes |= is_output ? VB2_WRITE : VB2_READ; q->gfp_flags = GFP_DMA32; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->drv_priv = chan; q->buf_struct_size = sizeof(struct cx25821_buffer); q->ops = &cx25821_video_qops; diff --git a/drivers/media/pci/cx88/cx88-blackbird.c b/drivers/media/pci/cx88/cx88-blackbird.c index c1b41a9283c1..d55df8fdb3b6 100644 --- a/drivers/media/pci/cx88/cx88-blackbird.c +++ b/drivers/media/pci/cx88/cx88-blackbird.c @@ -1195,7 +1195,7 @@ static int cx8802_blackbird_probe(struct cx8802_driver *drv) q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ; q->gfp_flags = GFP_DMA32; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->drv_priv = dev; q->buf_struct_size = sizeof(struct cx88_buffer); q->ops = &blackbird_qops; diff --git a/drivers/media/pci/cx88/cx88-dvb.c b/drivers/media/pci/cx88/cx88-dvb.c index 2087f2491c42..b33b3a5e32ec 100644 --- a/drivers/media/pci/cx88/cx88-dvb.c +++ b/drivers/media/pci/cx88/cx88-dvb.c @@ -1776,7 +1776,7 @@ static int cx8802_dvb_probe(struct cx8802_driver *drv) q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ; q->gfp_flags = GFP_DMA32; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->drv_priv = dev; q->buf_struct_size = sizeof(struct cx88_buffer); q->ops = &dvb_qops; diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c index c0ef03ed74f9..cefb6b25e921 100644 --- a/drivers/media/pci/cx88/cx88-video.c +++ b/drivers/media/pci/cx88/cx88-video.c @@ -1411,7 +1411,7 @@ static int cx8800_initdev(struct pci_dev *pci_dev, q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ; q->gfp_flags = GFP_DMA32; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->drv_priv = dev; q->buf_struct_size = sizeof(struct cx88_buffer); q->ops = &cx8800_video_qops; @@ -1428,7 +1428,7 @@ static int cx8800_initdev(struct pci_dev *pci_dev, q->type = V4L2_BUF_TYPE_VBI_CAPTURE; q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ; q->gfp_flags = GFP_DMA32; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->drv_priv = dev; q->buf_struct_size = sizeof(struct cx88_buffer); q->ops = &cx8800_vbi_qops; diff --git a/drivers/media/pci/dt3155/dt3155.c b/drivers/media/pci/dt3155/dt3155.c index d09cde2f6ee4..dff853e73fdc 100644 --- a/drivers/media/pci/dt3155/dt3155.c +++ b/drivers/media/pci/dt3155/dt3155.c @@ -517,7 +517,7 @@ static int dt3155_probe(struct pci_dev *pdev, const struct pci_device_id *id) pd->vidq.ops = &q_ops; pd->vidq.mem_ops = &vb2_dma_contig_memops; pd->vidq.drv_priv = pd; - pd->vidq.min_buffers_needed = 2; + pd->vidq.min_queued_buffers = 2; pd->vidq.gfp_flags = GFP_DMA32; pd->vidq.lock = &pd->mux; /* for locking v4l2_file_operations */ pd->vidq.dev = &pdev->dev; diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2.c b/drivers/media/pci/intel/ipu3/ipu3-cio2.c index 5d3b0ffd3d08..ed08bf4178f0 100644 --- a/drivers/media/pci/intel/ipu3/ipu3-cio2.c +++ b/drivers/media/pci/intel/ipu3/ipu3-cio2.c @@ -1589,7 +1589,7 @@ static int cio2_queue_init(struct cio2_device *cio2, struct cio2_queue *q) vbq->mem_ops = &vb2_dma_sg_memops; vbq->buf_struct_size = sizeof(struct cio2_buffer); vbq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - vbq->min_buffers_needed = 1; + vbq->min_queued_buffers = 1; vbq->drv_priv = cio2; vbq->lock = &q->lock; r = vb2_queue_init(vbq); diff --git a/drivers/media/pci/mgb4/mgb4_vin.c b/drivers/media/pci/mgb4/mgb4_vin.c index d72b07b87cd1..2cd78c539889 100644 --- a/drivers/media/pci/mgb4/mgb4_vin.c +++ b/drivers/media/pci/mgb4/mgb4_vin.c @@ -849,7 +849,7 @@ struct mgb4_vin_dev *mgb4_vin_create(struct mgb4_dev *mgbdev, int id) vindev->queue.mem_ops = &vb2_dma_sg_memops; vindev->queue.gfp_flags = GFP_DMA32; vindev->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - vindev->queue.min_buffers_needed = 2; + vindev->queue.min_queued_buffers = 2; vindev->queue.drv_priv = vindev; vindev->queue.lock = &vindev->lock; vindev->queue.dev = dev; diff --git a/drivers/media/pci/mgb4/mgb4_vout.c b/drivers/media/pci/mgb4/mgb4_vout.c index 857fc7bbd21a..241353ee77a5 100644 --- a/drivers/media/pci/mgb4/mgb4_vout.c +++ b/drivers/media/pci/mgb4/mgb4_vout.c @@ -523,7 +523,7 @@ struct mgb4_vout_dev *mgb4_vout_create(struct mgb4_dev *mgbdev, int id) voutdev->queue.mem_ops = &vb2_dma_sg_memops; voutdev->queue.gfp_flags = GFP_DMA32; voutdev->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - voutdev->queue.min_buffers_needed = 2; + voutdev->queue.min_queued_buffers = 2; voutdev->queue.drv_priv = voutdev; voutdev->queue.lock = &voutdev->lock; voutdev->queue.dev = dev; diff --git a/drivers/media/pci/tw5864/tw5864-video.c b/drivers/media/pci/tw5864/tw5864-video.c index 197ed8978102..8b1aae4b6319 100644 --- a/drivers/media/pci/tw5864/tw5864-video.c +++ b/drivers/media/pci/tw5864/tw5864-video.c @@ -1114,7 +1114,7 @@ static int tw5864_video_input_init(struct tw5864_input *input, int video_nr) input->vidq.gfp_flags = 0; input->vidq.buf_struct_size = sizeof(struct tw5864_buf); input->vidq.lock = &input->lock; - input->vidq.min_buffers_needed = 2; + input->vidq.min_queued_buffers = 2; input->vidq.dev = &input->root->pci->dev; ret = vb2_queue_init(&input->vidq); if (ret) diff --git a/drivers/media/pci/tw68/tw68-video.c b/drivers/media/pci/tw68/tw68-video.c index 79b627ebc92a..cdf5d733b863 100644 --- a/drivers/media/pci/tw68/tw68-video.c +++ b/drivers/media/pci/tw68/tw68-video.c @@ -952,7 +952,7 @@ int tw68_video_init2(struct tw68_dev *dev, int video_nr) dev->vidq.gfp_flags = __GFP_DMA32 | __GFP_KSWAPD_RECLAIM; dev->vidq.buf_struct_size = sizeof(struct tw68_buf); dev->vidq.lock = &dev->lock; - dev->vidq.min_buffers_needed = 2; + dev->vidq.min_queued_buffers = 2; dev->vidq.dev = &dev->pci->dev; ret = vb2_queue_init(&dev->vidq); if (ret) diff --git a/drivers/media/pci/tw686x/tw686x-video.c b/drivers/media/pci/tw686x/tw686x-video.c index 6bc6d143d18c..63be95fce83d 100644 --- a/drivers/media/pci/tw686x/tw686x-video.c +++ b/drivers/media/pci/tw686x/tw686x-video.c @@ -1222,7 +1222,7 @@ int tw686x_video_init(struct tw686x_dev *dev) vc->vidq.ops = &tw686x_video_qops; vc->vidq.mem_ops = dev->dma_ops->mem_ops; vc->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - vc->vidq.min_buffers_needed = 2; + vc->vidq.min_queued_buffers = 2; vc->vidq.lock = &vc->vb_mutex; vc->vidq.gfp_flags = dev->dma_mode != TW686X_DMA_MODE_MEMCPY ? GFP_DMA32 : 0; diff --git a/drivers/media/pci/zoran/zoran_driver.c b/drivers/media/pci/zoran/zoran_driver.c index fa672cc8bc67..5c05e64c71a9 100644 --- a/drivers/media/pci/zoran/zoran_driver.c +++ b/drivers/media/pci/zoran/zoran_driver.c @@ -749,8 +749,8 @@ static int zr_vb2_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, unsi zr->buf_in_reserve = 0; - if (*nbuffers < vq->min_buffers_needed) - *nbuffers = vq->min_buffers_needed; + if (*nbuffers < vq->min_queued_buffers) + *nbuffers = vq->min_queued_buffers; if (*nplanes) { if (sizes[0] < size) @@ -971,7 +971,7 @@ int zoran_queue_init(struct zoran *zr, struct vb2_queue *vq, int dir) vq->mem_ops = &vb2_dma_contig_memops; vq->gfp_flags = GFP_DMA32; vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - vq->min_buffers_needed = 9; + vq->min_queued_buffers = 9; vq->lock = &zr->lock; err = vb2_queue_init(vq); if (err) diff --git a/drivers/media/platform/amphion/vpu_v4l2.c b/drivers/media/platform/amphion/vpu_v4l2.c index 87afb4a18d5d..7058a3046292 100644 --- a/drivers/media/platform/amphion/vpu_v4l2.c +++ b/drivers/media/platform/amphion/vpu_v4l2.c @@ -649,7 +649,7 @@ static int vpu_m2m_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_q src_vq->mem_ops = &vb2_vmalloc_memops; src_vq->drv_priv = inst; src_vq->buf_struct_size = sizeof(struct vpu_vb2_buffer); - src_vq->min_buffers_needed = 1; + src_vq->min_queued_buffers = 1; src_vq->dev = inst->vpu->dev; src_vq->lock = &inst->lock; ret = vb2_queue_init(src_vq); @@ -666,7 +666,7 @@ static int vpu_m2m_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_q dst_vq->mem_ops = &vb2_vmalloc_memops; dst_vq->drv_priv = inst; dst_vq->buf_struct_size = sizeof(struct vpu_vb2_buffer); - dst_vq->min_buffers_needed = 1; + dst_vq->min_queued_buffers = 1; dst_vq->dev = inst->vpu->dev; dst_vq->lock = &inst->lock; ret = vb2_queue_init(dst_vq); diff --git a/drivers/media/platform/aspeed/aspeed-video.c b/drivers/media/platform/aspeed/aspeed-video.c index d08aa7f73d4f..fc6050e3be0d 100644 --- a/drivers/media/platform/aspeed/aspeed-video.c +++ b/drivers/media/platform/aspeed/aspeed-video.c @@ -2034,7 +2034,7 @@ static int aspeed_video_setup_video(struct aspeed_video *video) vbq->drv_priv = video; vbq->buf_struct_size = sizeof(struct aspeed_video_buffer); vbq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - vbq->min_buffers_needed = ASPEED_VIDEO_V4L2_MIN_BUF_REQ; + vbq->min_queued_buffers = ASPEED_VIDEO_V4L2_MIN_BUF_REQ; rc = vb2_queue_init(vbq); if (rc) { diff --git a/drivers/media/platform/atmel/atmel-isi.c b/drivers/media/platform/atmel/atmel-isi.c index da58f33b6b0a..a442765193ef 100644 --- a/drivers/media/platform/atmel/atmel-isi.c +++ b/drivers/media/platform/atmel/atmel-isi.c @@ -1244,7 +1244,7 @@ static int atmel_isi_probe(struct platform_device *pdev) q->ops = &isi_video_qops; q->mem_ops = &vb2_dma_contig_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->dev = &pdev->dev; ret = vb2_queue_init(q); diff --git a/drivers/media/platform/chips-media/coda/coda-common.c b/drivers/media/platform/chips-media/coda/coda-common.c index f1d85758f6dd..7da0194ec850 100644 --- a/drivers/media/platform/chips-media/coda/coda-common.c +++ b/drivers/media/platform/chips-media/coda/coda-common.c @@ -2546,7 +2546,7 @@ static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq) * would need to be reflected in job_ready(). Currently we expect all * queues to have at least one buffer queued. */ - vq->min_buffers_needed = 1; + vq->min_queued_buffers = 1; vq->dev = ctx->dev->dev; return vb2_queue_init(vq); diff --git a/drivers/media/platform/microchip/microchip-isc-base.c b/drivers/media/platform/microchip/microchip-isc-base.c index 540cb1378289..f3a5cbacadbe 100644 --- a/drivers/media/platform/microchip/microchip-isc-base.c +++ b/drivers/media/platform/microchip/microchip-isc-base.c @@ -1780,7 +1780,7 @@ static int isc_async_complete(struct v4l2_async_notifier *notifier) q->mem_ops = &vb2_dma_contig_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; q->lock = &isc->lock; - q->min_buffers_needed = 1; + q->min_queued_buffers = 1; q->dev = isc->dev; ret = vb2_queue_init(q); diff --git a/drivers/media/platform/nuvoton/npcm-video.c b/drivers/media/platform/nuvoton/npcm-video.c index 267e301f2b26..a1fcb616b256 100644 --- a/drivers/media/platform/nuvoton/npcm-video.c +++ b/drivers/media/platform/nuvoton/npcm-video.c @@ -1612,7 +1612,7 @@ static int npcm_video_setup_video(struct npcm_video *video) vbq->drv_priv = video; vbq->buf_struct_size = sizeof(struct npcm_video_buffer); vbq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - vbq->min_buffers_needed = 3; + vbq->min_queued_buffers = 3; rc = vb2_queue_init(vbq); if (rc) { diff --git a/drivers/media/platform/nxp/imx7-media-csi.c b/drivers/media/platform/nxp/imx7-media-csi.c index f992ae671065..9566ff738818 100644 --- a/drivers/media/platform/nxp/imx7-media-csi.c +++ b/drivers/media/platform/nxp/imx7-media-csi.c @@ -1691,7 +1691,7 @@ static int imx7_csi_video_init(struct imx7_csi *csi) vq->mem_ops = &vb2_dma_contig_memops; vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; vq->lock = &csi->vdev_mutex; - vq->min_buffers_needed = 2; + vq->min_queued_buffers = 2; vq->dev = csi->dev; ret = vb2_queue_init(vq); diff --git a/drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c b/drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c index 49bca2b01cc6..4091f1c0e78b 100644 --- a/drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c +++ b/drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c @@ -1453,7 +1453,7 @@ int mxc_isi_video_register(struct mxc_isi_pipe *pipe, q->mem_ops = &vb2_dma_contig_memops; q->buf_struct_size = sizeof(struct mxc_isi_buffer); q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->lock = &video->lock; q->dev = pipe->isi->dev; diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c index dbf305cec120..29130a9441e7 100644 --- a/drivers/media/platform/qcom/venus/vdec.c +++ b/drivers/media/platform/qcom/venus/vdec.c @@ -1641,7 +1641,7 @@ static int m2m_queue_init(void *priv, struct vb2_queue *src_vq, src_vq->drv_priv = inst; src_vq->buf_struct_size = sizeof(struct venus_buffer); src_vq->allow_zero_bytesused = 1; - src_vq->min_buffers_needed = 0; + src_vq->min_queued_buffers = 0; src_vq->dev = inst->core->dev; src_vq->lock = &inst->ctx_q_lock; ret = vb2_queue_init(src_vq); @@ -1656,7 +1656,7 @@ static int m2m_queue_init(void *priv, struct vb2_queue *src_vq, dst_vq->drv_priv = inst; dst_vq->buf_struct_size = sizeof(struct venus_buffer); dst_vq->allow_zero_bytesused = 1; - dst_vq->min_buffers_needed = 0; + dst_vq->min_queued_buffers = 0; dst_vq->dev = inst->core->dev; dst_vq->lock = &inst->ctx_q_lock; return vb2_queue_init(dst_vq); diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c index 44b13696cf82..3ec2fb8d9fab 100644 --- a/drivers/media/platform/qcom/venus/venc.c +++ b/drivers/media/platform/qcom/venus/venc.c @@ -1398,7 +1398,7 @@ static int m2m_queue_init(void *priv, struct vb2_queue *src_vq, src_vq->drv_priv = inst; src_vq->buf_struct_size = sizeof(struct venus_buffer); src_vq->allow_zero_bytesused = 1; - src_vq->min_buffers_needed = 1; + src_vq->min_queued_buffers = 1; src_vq->dev = inst->core->dev; src_vq->lock = &inst->ctx_q_lock; if (inst->core->res->hfi_version == HFI_VERSION_1XX) @@ -1415,7 +1415,7 @@ static int m2m_queue_init(void *priv, struct vb2_queue *src_vq, dst_vq->drv_priv = inst; dst_vq->buf_struct_size = sizeof(struct venus_buffer); dst_vq->allow_zero_bytesused = 1; - dst_vq->min_buffers_needed = 1; + dst_vq->min_queued_buffers = 1; dst_vq->dev = inst->core->dev; dst_vq->lock = &inst->ctx_q_lock; return vb2_queue_init(dst_vq); diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c index 2a77353f10b5..e2c40abc6d3d 100644 --- a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c +++ b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c @@ -1559,7 +1559,7 @@ int rvin_dma_register(struct rvin_dev *vin, int irq) q->ops = &rvin_qops; q->mem_ops = &vb2_dma_contig_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 4; + q->min_queued_buffers = 4; q->dev = vin->dev; ret = vb2_queue_init(q); diff --git a/drivers/media/platform/renesas/renesas-ceu.c b/drivers/media/platform/renesas/renesas-ceu.c index 2562b30acfb9..167760276796 100644 --- a/drivers/media/platform/renesas/renesas-ceu.c +++ b/drivers/media/platform/renesas/renesas-ceu.c @@ -1399,7 +1399,7 @@ static int ceu_notify_complete(struct v4l2_async_notifier *notifier) q->mem_ops = &vb2_dma_contig_memops; q->buf_struct_size = sizeof(struct ceu_buffer); q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->lock = &ceudev->mlock; q->dev = ceudev->v4l2_dev.dev; diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c index e6eedd65b71d..d0ffa90bc656 100644 --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c @@ -767,7 +767,7 @@ int rzg2l_cru_dma_register(struct rzg2l_cru_dev *cru) q->ops = &rzg2l_cru_qops; q->mem_ops = &vb2_dma_contig_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 4; + q->min_queued_buffers = 4; q->dev = cru->dev; ret = vb2_queue_init(q); diff --git a/drivers/media/platform/renesas/sh_vou.c b/drivers/media/platform/renesas/sh_vou.c index f792aedc9d82..1e74dd601c2b 100644 --- a/drivers/media/platform/renesas/sh_vou.c +++ b/drivers/media/platform/renesas/sh_vou.c @@ -1297,7 +1297,7 @@ static int sh_vou_probe(struct platform_device *pdev) q->ops = &sh_vou_qops; q->mem_ops = &vb2_dma_contig_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->lock = &vou_dev->fop_lock; q->dev = &pdev->dev; ret = vb2_queue_init(q); diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c index c6d7e01c8949..aebd3c12020b 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c @@ -1431,7 +1431,7 @@ static int rkisp1_register_capture(struct rkisp1_capture *cap) q->ops = &rkisp1_vb2_ops; q->mem_ops = &vb2_dma_contig_memops; q->buf_struct_size = sizeof(struct rkisp1_buffer); - q->min_buffers_needed = RKISP1_MIN_BUFFERS_NEEDED; + q->min_queued_buffers = RKISP1_MIN_BUFFERS_NEEDED; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; q->lock = &node->vlock; q->dev = cap->rkisp1->dev; diff --git a/drivers/media/platform/st/sti/hva/hva-v4l2.c b/drivers/media/platform/st/sti/hva/hva-v4l2.c index cfe83e9dc01b..161a5c0fbc4e 100644 --- a/drivers/media/platform/st/sti/hva/hva-v4l2.c +++ b/drivers/media/platform/st/sti/hva/hva-v4l2.c @@ -1142,7 +1142,7 @@ static int hva_queue_init(void *priv, struct vb2_queue *src_vq, src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; src_vq->buf_struct_size = sizeof(struct hva_frame); - src_vq->min_buffers_needed = MIN_FRAMES; + src_vq->min_queued_buffers = MIN_FRAMES; src_vq->dev = ctx->hva_dev->dev; ret = queue_init(ctx, src_vq); @@ -1151,7 +1151,7 @@ static int hva_queue_init(void *priv, struct vb2_queue *src_vq, dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; dst_vq->buf_struct_size = sizeof(struct hva_stream); - dst_vq->min_buffers_needed = MIN_STREAMS; + dst_vq->min_queued_buffers = MIN_STREAMS; dst_vq->dev = ctx->hva_dev->dev; return queue_init(ctx, dst_vq); diff --git a/drivers/media/platform/st/stm32/stm32-dcmi.c b/drivers/media/platform/st/stm32/stm32-dcmi.c index 48140fdf40bb..c4610e305546 100644 --- a/drivers/media/platform/st/stm32/stm32-dcmi.c +++ b/drivers/media/platform/st/stm32/stm32-dcmi.c @@ -2031,7 +2031,7 @@ static int dcmi_probe(struct platform_device *pdev) q->ops = &dcmi_video_qops; q->mem_ops = &vb2_dma_contig_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->allow_cache_hints = 1; q->dev = &pdev->dev; diff --git a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c index 0cd9b088bd97..9f768f011fa2 100644 --- a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c +++ b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c @@ -424,7 +424,7 @@ static int dcmipp_bytecap_start_streaming(struct vb2_queue *vq, reg_set(vcap, DCMIPP_P0FSCR, DCMIPP_P0FSCR_PIPEN); /* - * vb2 framework guarantee that we have at least 'min_buffers_needed' + * vb2 framework guarantee that we have at least 'min_queued_buffers' * buffers in the list at this moment */ vcap->next = list_first_entry(&vcap->buffers, typeof(*buf), list); @@ -889,7 +889,7 @@ struct dcmipp_ent_device *dcmipp_bytecap_ent_init(struct device *dev, q->ops = &dcmipp_bytecap_qops; q->mem_ops = &vb2_dma_contig_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 1; + q->min_queued_buffers = 1; q->dev = dev; /* DCMIPP requires 16 bytes aligned buffers */ diff --git a/drivers/media/platform/sunxi/sun4i-csi/sun4i_dma.c b/drivers/media/platform/sunxi/sun4i-csi/sun4i_dma.c index 95b5633b7914..d1371e130113 100644 --- a/drivers/media/platform/sunxi/sun4i-csi/sun4i_dma.c +++ b/drivers/media/platform/sunxi/sun4i-csi/sun4i_dma.c @@ -411,7 +411,7 @@ int sun4i_csi_dma_register(struct sun4i_csi *csi, int irq) for (i = 0; i < CSI_MAX_BUFFER; i++) csi->current_buf[i] = NULL; - q->min_buffers_needed = 3; + q->min_queued_buffers = 3; q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; q->io_modes = VB2_MMAP | VB2_DMABUF; q->lock = &csi->lock; diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c index cf6aadbc130b..14c0dc827c52 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c @@ -1010,7 +1010,7 @@ int sun6i_csi_capture_setup(struct sun6i_csi_device *csi_dev) queue->buf_struct_size = sizeof(struct sun6i_csi_buffer); queue->ops = &sun6i_csi_capture_queue_ops; queue->mem_ops = &vb2_dma_contig_memops; - queue->min_buffers_needed = 2; + queue->min_queued_buffers = 2; queue->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; queue->lock = &capture->lock; queue->dev = csi_dev->dev; diff --git a/drivers/media/platform/sunxi/sun8i-di/sun8i-di.c b/drivers/media/platform/sunxi/sun8i-di/sun8i-di.c index 90ab1d77b6a5..954fabec27f6 100644 --- a/drivers/media/platform/sunxi/sun8i-di/sun8i-di.c +++ b/drivers/media/platform/sunxi/sun8i-di/sun8i-di.c @@ -673,7 +673,7 @@ static int deinterlace_queue_init(void *priv, struct vb2_queue *src_vq, src_vq->io_modes = VB2_MMAP | VB2_DMABUF; src_vq->drv_priv = ctx; src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); - src_vq->min_buffers_needed = 1; + src_vq->min_queued_buffers = 1; src_vq->ops = &deinterlace_qops; src_vq->mem_ops = &vb2_dma_contig_memops; src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; @@ -688,7 +688,7 @@ static int deinterlace_queue_init(void *priv, struct vb2_queue *src_vq, dst_vq->io_modes = VB2_MMAP | VB2_DMABUF; dst_vq->drv_priv = ctx; dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); - dst_vq->min_buffers_needed = 2; + dst_vq->min_queued_buffers = 2; dst_vq->ops = &deinterlace_qops; dst_vq->mem_ops = &vb2_dma_contig_memops; dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; diff --git a/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c b/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c index 0b025ec91826..a12323ca89fa 100644 --- a/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c +++ b/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c @@ -536,7 +536,7 @@ static int rotate_queue_init(void *priv, struct vb2_queue *src_vq, src_vq->io_modes = VB2_MMAP | VB2_DMABUF; src_vq->drv_priv = ctx; src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); - src_vq->min_buffers_needed = 1; + src_vq->min_queued_buffers = 1; src_vq->ops = &rotate_qops; src_vq->mem_ops = &vb2_dma_contig_memops; src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; @@ -551,7 +551,7 @@ static int rotate_queue_init(void *priv, struct vb2_queue *src_vq, dst_vq->io_modes = VB2_MMAP | VB2_DMABUF; dst_vq->drv_priv = ctx; dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); - dst_vq->min_buffers_needed = 2; + dst_vq->min_queued_buffers = 2; dst_vq->ops = &rotate_qops; dst_vq->mem_ops = &vb2_dma_contig_memops; dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; diff --git a/drivers/media/platform/ti/am437x/am437x-vpfe.c b/drivers/media/platform/ti/am437x/am437x-vpfe.c index f18acf9286a2..77e12457d149 100644 --- a/drivers/media/platform/ti/am437x/am437x-vpfe.c +++ b/drivers/media/platform/ti/am437x/am437x-vpfe.c @@ -2234,7 +2234,7 @@ static int vpfe_probe_complete(struct vpfe_device *vpfe) q->buf_struct_size = sizeof(struct vpfe_cap_buffer); q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; q->lock = &vpfe->lock; - q->min_buffers_needed = 1; + q->min_queued_buffers = 1; q->dev = vpfe->pdev; err = vb2_queue_init(q); diff --git a/drivers/media/platform/ti/cal/cal-video.c b/drivers/media/platform/ti/cal/cal-video.c index e1c5e68e945b..e1ba5dfc217e 100644 --- a/drivers/media/platform/ti/cal/cal-video.c +++ b/drivers/media/platform/ti/cal/cal-video.c @@ -1010,7 +1010,7 @@ int cal_ctx_v4l2_init(struct cal_ctx *ctx) q->mem_ops = &vb2_dma_contig_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; q->lock = &ctx->mutex; - q->min_buffers_needed = 3; + q->min_queued_buffers = 3; q->dev = ctx->cal->dev; ret = vb2_queue_init(q); diff --git a/drivers/media/platform/ti/davinci/vpif_capture.c b/drivers/media/platform/ti/davinci/vpif_capture.c index fc42b4bc37e6..c31a5566fc5a 100644 --- a/drivers/media/platform/ti/davinci/vpif_capture.c +++ b/drivers/media/platform/ti/davinci/vpif_capture.c @@ -1429,7 +1429,7 @@ static int vpif_probe_complete(void) q->mem_ops = &vb2_dma_contig_memops; q->buf_struct_size = sizeof(struct vpif_cap_buffer); q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 1; + q->min_queued_buffers = 1; q->lock = &common->lock; q->dev = vpif_dev; diff --git a/drivers/media/platform/ti/davinci/vpif_display.c b/drivers/media/platform/ti/davinci/vpif_display.c index 9dbab1003c1d..02ede1fe12cb 100644 --- a/drivers/media/platform/ti/davinci/vpif_display.c +++ b/drivers/media/platform/ti/davinci/vpif_display.c @@ -1169,7 +1169,7 @@ static int vpif_probe_complete(void) q->mem_ops = &vb2_dma_contig_memops; q->buf_struct_size = sizeof(struct vpif_disp_buffer); q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 1; + q->min_queued_buffers = 1; q->lock = &common->lock; q->dev = vpif_dev; err = vb2_queue_init(q); diff --git a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c index ada61391c8d2..59b30fc43144 100644 --- a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c +++ b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c @@ -873,7 +873,7 @@ static int ti_csi2rx_init_vb2q(struct ti_csi2rx_dev *csi) q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; q->dev = dmaengine_get_dma_device(csi->dma.chan); q->lock = &csi->mutex; - q->min_buffers_needed = 1; + q->min_queued_buffers = 1; ret = vb2_queue_init(q); if (ret) diff --git a/drivers/media/platform/ti/omap/omap_vout.c b/drivers/media/platform/ti/omap/omap_vout.c index 72ce903717d3..1c56b6a87ced 100644 --- a/drivers/media/platform/ti/omap/omap_vout.c +++ b/drivers/media/platform/ti/omap/omap_vout.c @@ -1404,7 +1404,7 @@ static int __init omap_vout_setup_video_data(struct omap_vout_device *vout) vq->ops = &omap_vout_vb2_ops; vq->mem_ops = &vb2_dma_contig_memops; vq->lock = &vout->lock; - vq->min_buffers_needed = 1; + vq->min_queued_buffers = 1; vfd->queue = vq; ret = vb2_queue_init(vq); diff --git a/drivers/media/test-drivers/vimc/vimc-capture.c b/drivers/media/test-drivers/vimc/vimc-capture.c index aa944270e716..2a2d19d23bab 100644 --- a/drivers/media/test-drivers/vimc/vimc-capture.c +++ b/drivers/media/test-drivers/vimc/vimc-capture.c @@ -432,7 +432,7 @@ static struct vimc_ent_device *vimc_capture_add(struct vimc_device *vimc, q->mem_ops = vimc_allocator == VIMC_ALLOCATOR_DMA_CONTIG ? &vb2_dma_contig_memops : &vb2_vmalloc_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->lock = &vcapture->lock; q->dev = v4l2_dev->dev; diff --git a/drivers/media/test-drivers/vivid/vivid-core.c b/drivers/media/test-drivers/vivid/vivid-core.c index 353f035fcd19..b6b010deb143 100644 --- a/drivers/media/test-drivers/vivid/vivid-core.c +++ b/drivers/media/test-drivers/vivid/vivid-core.c @@ -898,7 +898,7 @@ static int vivid_create_queue(struct vivid_dev *dev, q->mem_ops = allocators[dev->inst] == 1 ? &vb2_dma_contig_memops : &vb2_vmalloc_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = supports_requests[dev->inst] ? 0 : min_buffers_needed; + q->min_queued_buffers = supports_requests[dev->inst] ? 0 : min_buffers_needed; q->lock = &dev->mutex; q->dev = dev->v4l2_dev.dev; q->supports_requests = supports_requests[dev->inst]; diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c b/drivers/media/usb/cx231xx/cx231xx-417.c index 45973fe690b2..3b75d062e602 100644 --- a/drivers/media/usb/cx231xx/cx231xx-417.c +++ b/drivers/media/usb/cx231xx/cx231xx-417.c @@ -1782,7 +1782,7 @@ int cx231xx_417_register(struct cx231xx *dev) q->ops = &cx231xx_video_qops; q->mem_ops = &vb2_vmalloc_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 1; + q->min_queued_buffers = 1; q->lock = &dev->lock; err = vb2_queue_init(q); if (err) diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c index c8eb4222319d..8f347bbeeb32 100644 --- a/drivers/media/usb/cx231xx/cx231xx-video.c +++ b/drivers/media/usb/cx231xx/cx231xx-video.c @@ -1811,7 +1811,7 @@ int cx231xx_register_analog_devices(struct cx231xx *dev) q->ops = &cx231xx_video_qops; q->mem_ops = &vb2_vmalloc_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 1; + q->min_queued_buffers = 1; q->lock = &dev->lock; ret = vb2_queue_init(q); if (ret) @@ -1871,7 +1871,7 @@ int cx231xx_register_analog_devices(struct cx231xx *dev) q->ops = &cx231xx_vbi_qops; q->mem_ops = &vb2_vmalloc_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 1; + q->min_queued_buffers = 1; q->lock = &dev->lock; ret = vb2_queue_init(q); if (ret) diff --git a/drivers/media/usb/dvb-usb/cxusb-analog.c b/drivers/media/usb/dvb-usb/cxusb-analog.c index deba5224cb8d..b5d8c6b75ae1 100644 --- a/drivers/media/usb/dvb-usb/cxusb-analog.c +++ b/drivers/media/usb/dvb-usb/cxusb-analog.c @@ -1632,7 +1632,7 @@ static int cxusb_medion_register_analog_video(struct dvb_usb_device *dvbdev) cxdev->videoqueue.buf_struct_size = sizeof(struct cxusb_medion_vbuffer); cxdev->videoqueue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - cxdev->videoqueue.min_buffers_needed = 6; + cxdev->videoqueue.min_queued_buffers = 6; cxdev->videoqueue.lock = &cxdev->dev_lock; ret = vb2_queue_init(&cxdev->videoqueue); diff --git a/drivers/media/usb/gspca/gspca.c b/drivers/media/usb/gspca/gspca.c index 770714c34295..e8c8bdb9c40b 100644 --- a/drivers/media/usb/gspca/gspca.c +++ b/drivers/media/usb/gspca/gspca.c @@ -1257,7 +1257,7 @@ static int vidioc_g_parm(struct file *filp, void *priv, { struct gspca_dev *gspca_dev = video_drvdata(filp); - parm->parm.capture.readbuffers = gspca_dev->queue.min_buffers_needed; + parm->parm.capture.readbuffers = gspca_dev->queue.min_queued_buffers; if (!gspca_dev->sd_desc->get_streamparm) return 0; @@ -1273,7 +1273,7 @@ static int vidioc_s_parm(struct file *filp, void *priv, { struct gspca_dev *gspca_dev = video_drvdata(filp); - parm->parm.capture.readbuffers = gspca_dev->queue.min_buffers_needed; + parm->parm.capture.readbuffers = gspca_dev->queue.min_queued_buffers; if (!gspca_dev->sd_desc->set_streamparm) { parm->parm.capture.capability = 0; @@ -1517,7 +1517,7 @@ int gspca_dev_probe2(struct usb_interface *intf, q->ops = &gspca_qops; q->mem_ops = &vb2_vmalloc_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; q->lock = &gspca_dev->usb_lock; ret = vb2_queue_init(q); if (ret) diff --git a/drivers/staging/media/deprecated/atmel/atmel-isc-base.c b/drivers/staging/media/deprecated/atmel/atmel-isc-base.c index 468568b5bb7a..305b103153d7 100644 --- a/drivers/staging/media/deprecated/atmel/atmel-isc-base.c +++ b/drivers/staging/media/deprecated/atmel/atmel-isc-base.c @@ -1871,7 +1871,7 @@ static int isc_async_complete(struct v4l2_async_notifier *notifier) q->mem_ops = &vb2_dma_contig_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; q->lock = &isc->lock; - q->min_buffers_needed = 1; + q->min_queued_buffers = 1; q->dev = isc->dev; ret = vb2_queue_init(q); diff --git a/drivers/staging/media/imx/imx-media-capture.c b/drivers/staging/media/imx/imx-media-capture.c index ce02199e7b1b..f7504eb65bb4 100644 --- a/drivers/staging/media/imx/imx-media-capture.c +++ b/drivers/staging/media/imx/imx-media-capture.c @@ -1022,7 +1022,7 @@ imx_media_capture_device_init(struct device *dev, struct v4l2_subdev *src_sd, 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->min_queued_buffers = 2; vq->dev = priv->dev; ret = vb2_queue_init(vq); diff --git a/drivers/staging/media/ipu3/ipu3-v4l2.c b/drivers/staging/media/ipu3/ipu3-v4l2.c index 0fe2b858da83..a66f034380c0 100644 --- a/drivers/staging/media/ipu3/ipu3-v4l2.c +++ b/drivers/staging/media/ipu3/ipu3-v4l2.c @@ -1198,7 +1198,7 @@ static int imgu_v4l2_node_setup(struct imgu_device *imgu, unsigned int pipe, vbq->buf_struct_size = imgu->buf_struct_size; vbq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; /* can streamon w/o buffers */ - vbq->min_buffers_needed = 0; + vbq->min_queued_buffers = 0; vbq->drv_priv = imgu; vbq->lock = &node->lock; r = vb2_queue_init(vbq); diff --git a/drivers/staging/media/meson/vdec/vdec.c b/drivers/staging/media/meson/vdec/vdec.c index 1e2369f104c8..de3e0345ab7c 100644 --- a/drivers/staging/media/meson/vdec/vdec.c +++ b/drivers/staging/media/meson/vdec/vdec.c @@ -184,7 +184,7 @@ static void process_num_buffers(struct vb2_queue *q, * we need all of them to be queued into the driver */ sess->num_dst_bufs = q_num_bufs + *num_buffers; - q->min_buffers_needed = max(fmt_out->min_buffers, sess->num_dst_bufs); + q->min_queued_buffers = max(fmt_out->min_buffers, sess->num_dst_bufs); } static int vdec_queue_setup(struct vb2_queue *q, unsigned int *num_buffers, @@ -825,7 +825,7 @@ static int m2m_queue_init(void *priv, struct vb2_queue *src_vq, src_vq->mem_ops = &vb2_dma_contig_memops; src_vq->drv_priv = sess; src_vq->buf_struct_size = sizeof(struct dummy_buf); - src_vq->min_buffers_needed = 1; + src_vq->min_queued_buffers = 1; src_vq->dev = sess->core->dev; src_vq->lock = &sess->lock; ret = vb2_queue_init(src_vq); @@ -839,7 +839,7 @@ static int m2m_queue_init(void *priv, struct vb2_queue *src_vq, dst_vq->mem_ops = &vb2_dma_contig_memops; dst_vq->drv_priv = sess; dst_vq->buf_struct_size = sizeof(struct dummy_buf); - dst_vq->min_buffers_needed = 1; + dst_vq->min_queued_buffers = 1; dst_vq->dev = sess->core->dev; dst_vq->lock = &sess->lock; return vb2_queue_init(dst_vq); diff --git a/drivers/staging/media/starfive/camss/stf-video.c b/drivers/staging/media/starfive/camss/stf-video.c index 0b305f21eb53..989b5e82bae9 100644 --- a/drivers/staging/media/starfive/camss/stf-video.c +++ b/drivers/staging/media/starfive/camss/stf-video.c @@ -513,7 +513,7 @@ int stf_video_register(struct stfcamss_video *video, q->buf_struct_size = sizeof(struct stfcamss_buffer); q->dev = video->stfcamss->dev; q->lock = &video->q_lock; - q->min_buffers_needed = STFCAMSS_MIN_BUFFERS; + q->min_queued_buffers = STFCAMSS_MIN_BUFFERS; ret = vb2_queue_init(q); if (ret < 0) { dev_err(video->stfcamss->dev, diff --git a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_capture.c b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_capture.c index 1595a9607775..0eea4c2c3627 100644 --- a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_capture.c +++ b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_capture.c @@ -660,7 +660,7 @@ int sun6i_isp_capture_setup(struct sun6i_isp_device *isp_dev) queue->buf_struct_size = sizeof(struct sun6i_isp_buffer); queue->ops = &sun6i_isp_capture_queue_ops; queue->mem_ops = &vb2_dma_contig_memops; - queue->min_buffers_needed = 2; + queue->min_queued_buffers = 2; queue->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; queue->lock = &capture->lock; queue->dev = isp_dev->dev; diff --git a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_params.c b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_params.c index e28be895b486..53d05e8a364b 100644 --- a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_params.c +++ b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_params.c @@ -489,7 +489,7 @@ int sun6i_isp_params_setup(struct sun6i_isp_device *isp_dev) queue->buf_struct_size = sizeof(struct sun6i_isp_buffer); queue->ops = &sun6i_isp_params_queue_ops; queue->mem_ops = &vb2_vmalloc_memops; - queue->min_buffers_needed = 1; + queue->min_queued_buffers = 1; queue->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; queue->lock = ¶ms->lock; queue->dev = isp_dev->dev; diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c index e0bb59ee3c09..af6e3a0d8df4 100644 --- a/drivers/staging/media/tegra-video/vi.c +++ b/drivers/staging/media/tegra-video/vi.c @@ -1174,7 +1174,7 @@ static int tegra_channel_init(struct tegra_vi_channel *chan) chan->queue.ops = &tegra_channel_queue_qops; chan->queue.mem_ops = &vb2_dma_contig_memops; chan->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - chan->queue.min_buffers_needed = 2; + chan->queue.min_queued_buffers = 2; chan->queue.dev = vi->dev; ret = vb2_queue_init(&chan->queue); if (ret < 0) { diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index 5557d78b6f20..f9a00b6c3c46 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -546,10 +546,13 @@ struct vb2_buf_ops { * @gfp_flags: additional gfp flags used when allocating the buffers. * Typically this is 0, but it may be e.g. %GFP_DMA or %__GFP_DMA32 * to force the buffer allocation to a specific memory zone. - * @min_buffers_needed: the minimum number of buffers needed before + * @min_queued_buffers: the minimum number of queued buffers needed before * @start_streaming can be called. Used when a DMA engine * cannot be started unless at least this number of buffers * have been queued into the driver. + * VIDIOC_REQBUFS will ensure at least @min_queued_buffers + 1 + * buffers will be allocated. Note that VIDIOC_CREATE_BUFS will not + * modify the requested buffer count. */ /* * Private elements (won't appear at the uAPI book): @@ -614,7 +617,7 @@ struct vb2_queue { unsigned int buf_struct_size; u32 timestamp_flags; gfp_t gfp_flags; - u32 min_buffers_needed; + u32 min_queued_buffers; struct device *alloc_devs[VB2_MAX_PLANES]; diff --git a/samples/v4l/v4l2-pci-skeleton.c b/samples/v4l/v4l2-pci-skeleton.c index a65aa9d1e9da..4fe8f58b270f 100644 --- a/samples/v4l/v4l2-pci-skeleton.c +++ b/samples/v4l/v4l2-pci-skeleton.c @@ -821,7 +821,7 @@ static int skeleton_probe(struct pci_dev *pdev, const struct pci_device_id *ent) * available before it can be started. The start_streaming() op * won't be called until at least this many buffers are queued up. */ - q->min_buffers_needed = 2; + q->min_queued_buffers = 2; /* * The serialization lock for the streaming ioctls. This is the same * as the main serialization lock, but if some of the non-streaming