Hi Niklas,
Thank you for the patch.
On Fri, Jun 13, 2025 at 05:34:33PM +0200, Niklas Söderlund wrote:
> Complete the conversion from soc_camera to a full fledge media
> controller enabled devices for all supported generations of the device.
> All work is already done as this is already supported on Gen3, and
> later.
>
> All that is missing is removing all special cases for the non
> media-graph call paths and use the common ones in their place.
>
> The one change that stands out is dropping the doubling of the height in
> the Gen2 scaler setup, rvin_scaler_gen2(). In the Gen2 non-MC world the
> VIN size was set to match the video source subdevices, and if that was a
> TOP/BOTTOM video source it needed to be doubled for the scaler to
> function properly. In the MC world this is now handled by user-space
> configuration of the pipeline and the adjustment is not needed.
>
> Mark the completion of converting from soc_camera by injecting an
> attribution of myself in the header.
>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
> ---
> * Changes since v5
> - Use loop variable in rvin_group_notify_bound() to simplify usgae in
> loop.
> - Move a few lines around in rvin_v4l2_register() to group similar
> things together better made possible by removing the use_mc flag.
>
> * Changes since v4
> - Break out small things to ease review.
> - Add rationale of odd looking change in rvin_scaler_gen2().
>
> * Changes since v3
> - Resolve conflicts with other VIN work merged a head of this series.
> ---
> .../platform/renesas/rcar-vin/rcar-core.c | 162 ++----
> .../platform/renesas/rcar-vin/rcar-dma.c | 20 +-
> .../platform/renesas/rcar-vin/rcar-v4l2.c | 470 +-----------------
> .../platform/renesas/rcar-vin/rcar-vin.h | 10 +-
> 4 files changed, 44 insertions(+), 618 deletions(-)
>
> diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-core.c b/drivers/media/platform/renesas/rcar-vin/rcar-core.c
> index 74fc90cf5800..f73729f59671 100644
> --- a/drivers/media/platform/renesas/rcar-vin/rcar-core.c
> +++ b/drivers/media/platform/renesas/rcar-vin/rcar-core.c
> @@ -2,12 +2,11 @@
> /*
> * Driver for Renesas R-Car VIN
> *
> + * Copyright (C) 2025 Niklas Söderlund <niklas.soderlund@xxxxxxxxxxxx>
> * Copyright (C) 2016 Renesas Electronics Corp.
> * Copyright (C) 2011-2013 Renesas Solutions Corp.
> * Copyright (C) 2013 Cogent Embedded, Inc., <source@xxxxxxxxxxxxxxxxxx>
> * Copyright (C) 2008 Magnus Damm
> - *
> - * Based on the soc-camera rcar_vin driver
> */
>
> #include <linux/idr.h>
> @@ -43,9 +42,6 @@
>
> #define v4l2_dev_to_vin(d) container_of(d, struct rvin_dev, v4l2_dev)
>
> -static int rvin_parallel_subdevice_attach(struct rvin_dev *vin,
> - struct v4l2_subdev *subdev);
> -
> /* -----------------------------------------------------------------------------
> * Gen3 Group Allocator
> */
> @@ -236,10 +232,7 @@ static int rvin_group_notify_complete(struct v4l2_async_notifier *notifier)
> }
> }
>
> - if (vin->group->link_setup)
> - return vin->group->link_setup(vin->group);
> -
> - return 0;
> + return vin->group->link_setup(vin->group);
> }
>
> static void rvin_group_notify_unbind(struct v4l2_async_notifier *notifier,
> @@ -290,18 +283,18 @@ static int rvin_group_notify_bound(struct v4l2_async_notifier *notifier,
> guard(mutex)(&group->lock);
>
> for (unsigned int i = 0; i < RCAR_VIN_NUM; i++) {
> - int ret;
> + struct rvin_dev *pvin = group->vin[i];
>
> - if (!group->vin[i] || group->vin[i]->parallel.asc != asc)
> + if (!pvin || pvin->parallel.asc != asc)
> continue;
>
> - ret = rvin_parallel_subdevice_attach(group->vin[i], subdev);
> - if (ret)
> - return ret;
> + pvin->parallel.source_pad = 0;
> + for (unsigned int pad = 0; pad < subdev->entity.num_pads; pad++)
> + if (subdev->entity.pads[pad].flags & MEDIA_PAD_FL_SOURCE)
> + pvin->parallel.source_pad = pad;
>
> - v4l2_set_subdev_hostdata(subdev, group->vin[i]);
> -
> - vin_dbg(group->vin[i], "Bound subdev %s\n", subdev->name);
> + pvin->parallel.subdev = subdev;
> + vin_dbg(pvin, "Bound subdev %s\n", subdev->name);
>
> return 0;
> }
> @@ -525,95 +518,6 @@ static int rvin_create_controls(struct rvin_dev *vin)
> return 0;
> }
>
> -/* -----------------------------------------------------------------------------
> - * Async notifier
> - */
> -
> -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;
> -}
> -
> -/* -----------------------------------------------------------------------------
> - * Parallel async notifier
> - */
> -
> -/* The vin lock should be held when calling the subdevice attach and detach */
> -static int rvin_parallel_subdevice_attach(struct rvin_dev *vin,
> - struct v4l2_subdev *subdev)
> -{
> - struct v4l2_subdev_mbus_code_enum code = {
> - .which = V4L2_SUBDEV_FORMAT_ACTIVE,
> - };
> - int ret;
> -
> - /* Find source and sink pad of remote subdevice */
> - ret = rvin_find_pad(subdev, MEDIA_PAD_FL_SOURCE);
> - if (ret < 0)
> - return ret;
> - vin->parallel.source_pad = ret;
> -
> - ret = rvin_find_pad(subdev, MEDIA_PAD_FL_SINK);
> - vin->parallel.sink_pad = ret < 0 ? 0 : ret;
> -
> - if (vin->info->use_mc) {
> - vin->parallel.subdev = subdev;
> - return 0;
> - }
> -
> - /* Find compatible subdevices mbus format */
> - vin->mbus_code = 0;
> - code.index = 0;
> - code.pad = vin->parallel.source_pad;
> - while (!vin->mbus_code &&
> - !v4l2_subdev_call(subdev, pad, enum_mbus_code, NULL, &code)) {
> - code.index++;
> - switch (code.code) {
> - case MEDIA_BUS_FMT_YUYV8_1X16:
> - case MEDIA_BUS_FMT_UYVY8_1X16:
> - case MEDIA_BUS_FMT_UYVY8_2X8:
> - case MEDIA_BUS_FMT_UYVY10_2X10:
> - case MEDIA_BUS_FMT_RGB888_1X24:
> - vin->mbus_code = code.code;
> - vin_dbg(vin, "Found media bus format for %s: %d\n",
> - subdev->name, vin->mbus_code);
> - break;
> - default:
> - break;
> - }
> - }
> -
> - if (!vin->mbus_code) {
> - vin_err(vin, "Unsupported media bus format for %s\n",
> - subdev->name);
> - return -EINVAL;
> - }
> -
> - /* Read tvnorms */
> - ret = v4l2_subdev_call(subdev, video, g_tvnorms, &vin->vdev.tvnorms);
> - if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV)
> - return ret;
> -
> - /* Read standard */
> - vin->std = V4L2_STD_UNKNOWN;
> - ret = v4l2_subdev_call(subdev, video, g_std, &vin->std);
> - if (ret < 0 && ret != -ENOIOCTLCMD)
> - return ret;
> -
> - vin->parallel.subdev = subdev;
> -
> - return 0;
> -}
> -
> /* -----------------------------------------------------------------------------
> * CSI-2
> */
> @@ -971,7 +875,7 @@ static int __maybe_unused rvin_resume(struct device *dev)
> * as we don't know if and in which order the master VINs will
> * be resumed.
> */
> - if (vin->info->use_mc) {
> + if (vin->info->model == RCAR_GEN3) {
> unsigned int master_id = rvin_group_id_to_master(vin->id);
> struct rvin_dev *master = vin->group->vin[master_id];
> int ret;
> @@ -993,7 +897,6 @@ static int __maybe_unused rvin_resume(struct device *dev)
>
> static const struct rvin_info rcar_info_h1 = {
> .model = RCAR_H1,
> - .use_mc = false,
> .max_width = 2048,
> .max_height = 2048,
> .scaler = rvin_scaler_gen2,
> @@ -1001,7 +904,6 @@ static const struct rvin_info rcar_info_h1 = {
>
> static const struct rvin_info rcar_info_m1 = {
> .model = RCAR_M1,
> - .use_mc = false,
> .max_width = 2048,
> .max_height = 2048,
> .scaler = rvin_scaler_gen2,
> @@ -1009,7 +911,6 @@ static const struct rvin_info rcar_info_m1 = {
>
> static const struct rvin_info rcar_info_gen2 = {
> .model = RCAR_GEN2,
> - .use_mc = false,
> .max_width = 2048,
> .max_height = 2048,
> .scaler = rvin_scaler_gen2,
> @@ -1024,7 +925,6 @@ static const struct rvin_group_route rcar_info_r8a774e1_routes[] = {
>
> static const struct rvin_info rcar_info_r8a774e1 = {
> .model = RCAR_GEN3,
> - .use_mc = true,
> .max_width = 4096,
> .max_height = 4096,
> .routes = rcar_info_r8a774e1_routes,
> @@ -1040,7 +940,6 @@ static const struct rvin_group_route rcar_info_r8a7795_routes[] = {
>
> static const struct rvin_info rcar_info_r8a7795 = {
> .model = RCAR_GEN3,
> - .use_mc = true,
> .nv12 = true,
> .max_width = 4096,
> .max_height = 4096,
> @@ -1058,7 +957,6 @@ static const struct rvin_group_route rcar_info_r8a7796_routes[] = {
>
> static const struct rvin_info rcar_info_r8a7796 = {
> .model = RCAR_GEN3,
> - .use_mc = true,
> .nv12 = true,
> .max_width = 4096,
> .max_height = 4096,
> @@ -1076,7 +974,6 @@ static const struct rvin_group_route rcar_info_r8a77965_routes[] = {
>
> static const struct rvin_info rcar_info_r8a77965 = {
> .model = RCAR_GEN3,
> - .use_mc = true,
> .nv12 = true,
> .max_width = 4096,
> .max_height = 4096,
> @@ -1091,7 +988,6 @@ static const struct rvin_group_route rcar_info_r8a77970_routes[] = {
>
> static const struct rvin_info rcar_info_r8a77970 = {
> .model = RCAR_GEN3,
> - .use_mc = true,
> .max_width = 4096,
> .max_height = 4096,
> .routes = rcar_info_r8a77970_routes,
> @@ -1105,7 +1001,6 @@ static const struct rvin_group_route rcar_info_r8a77980_routes[] = {
>
> static const struct rvin_info rcar_info_r8a77980 = {
> .model = RCAR_GEN3,
> - .use_mc = true,
> .nv12 = true,
> .max_width = 4096,
> .max_height = 4096,
> @@ -1119,7 +1014,6 @@ static const struct rvin_group_route rcar_info_r8a77990_routes[] = {
>
> static const struct rvin_info rcar_info_r8a77990 = {
> .model = RCAR_GEN3,
> - .use_mc = true,
> .nv12 = true,
> .max_width = 4096,
> .max_height = 4096,
> @@ -1133,7 +1027,6 @@ static const struct rvin_group_route rcar_info_r8a77995_routes[] = {
>
> static const struct rvin_info rcar_info_r8a77995 = {
> .model = RCAR_GEN3,
> - .use_mc = true,
> .nv12 = true,
> .max_width = 4096,
> .max_height = 4096,
> @@ -1143,7 +1036,6 @@ static const struct rvin_info rcar_info_r8a77995 = {
>
> static const struct rvin_info rcar_info_gen4 = {
> .model = RCAR_GEN4,
> - .use_mc = true,
> .use_isp = true,
> .nv12 = true,
> .raw10 = true,
> @@ -1321,21 +1213,27 @@ static int rcar_vin_probe(struct platform_device *pdev)
> if (ret < 0)
> goto err_id;
>
> - if (vin->info->use_isp) {
> - ret = rvin_isp_init(vin);
> - } else if (vin->info->use_mc) {
> - ret = rvin_csi2_init(vin);
> + switch (vin->info->model) {
> + case RCAR_GEN3:
> + case RCAR_GEN4:
> + if (vin->info->use_isp) {
> + ret = rvin_isp_init(vin);
> + } else {
> + ret = rvin_csi2_init(vin);
>
> - if (vin->info->scaler &&
> - rvin_group_id_to_master(vin->id) == vin->id)
> - vin->scaler = vin->info->scaler;
> - } else {
> - ret = rvin_group_get(vin, NULL, NULL);
> + if (vin->info->scaler &&
> + rvin_group_id_to_master(vin->id) == vin->id)
> + vin->scaler = vin->info->scaler;
> + }
> + break;
> + default:
> + ret = rvin_group_get(vin, rvin_parallel_setup_links, NULL);
> if (!ret)
> ret = rvin_group_notifier_init(vin, 0, 0);
>
> if (vin->info->scaler)
> vin->scaler = vin->info->scaler;
> + break;
> }
>
> if (ret)
> @@ -1364,11 +1262,9 @@ static void rcar_vin_remove(struct platform_device *pdev)
>
> rvin_v4l2_unregister(vin);
>
> - if (vin->info->use_isp || vin->info->use_mc) {
> - if (&vin->v4l2_dev == vin->group->notifier.v4l2_dev) {
> - v4l2_async_nf_unregister(&vin->group->notifier);
> - v4l2_async_nf_cleanup(&vin->group->notifier);
> - }
> + if (&vin->v4l2_dev == vin->group->notifier.v4l2_dev) {
> + v4l2_async_nf_unregister(&vin->group->notifier);
> + v4l2_async_nf_cleanup(&vin->group->notifier);
> }
>
> rvin_group_put(vin);
> diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
> index 4fb33359bb0f..d4faa5a4e757 100644
> --- a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
> +++ b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
> @@ -2,12 +2,11 @@
> /*
> * Driver for Renesas R-Car VIN
> *
> + * Copyright (C) 2025 Niklas Söderlund <niklas.soderlund@xxxxxxxxxxxx>
> * Copyright (C) 2016 Renesas Electronics Corp.
> * Copyright (C) 2011-2013 Renesas Solutions Corp.
> * Copyright (C) 2013 Cogent Embedded, Inc., <source@xxxxxxxxxxxxxxxxxx>
> * Copyright (C) 2008 Magnus Damm
> - *
> - * Based on the soc-camera rcar_vin driver
> */
>
> #include <linux/delay.h>
> @@ -555,17 +554,12 @@ static void rvin_set_coeff(struct rvin_dev *vin, unsigned short xs)
>
> void rvin_scaler_gen2(struct rvin_dev *vin)
> {
> - unsigned int crop_height;
> u32 xs, ys;
>
> /* Set scaling coefficient */
> - crop_height = vin->crop.height;
> - if (V4L2_FIELD_HAS_BOTH(vin->format.field))
> - crop_height *= 2;
> -
> ys = 0;
> - if (crop_height != vin->compose.height)
> - ys = (4096 * crop_height) / vin->compose.height;
> + if (vin->crop.height != vin->compose.height)
> + ys = (4096 * vin->crop.height) / vin->compose.height;
> rvin_write(vin, ys, VNYS_REG);
>
> xs = 0;
> @@ -1294,14 +1288,6 @@ static int rvin_set_stream(struct rvin_dev *vin, int on)
> struct media_pad *pad;
> int ret;
>
> - /* No media controller used, simply pass operation to subdevice. */
> - if (!vin->info->use_mc) {
> - ret = v4l2_subdev_call(vin->parallel.subdev, video, s_stream,
> - on);
> -
> - return ret == -ENOIOCTLCMD ? 0 : ret;
> - }
> -
> pad = media_pad_remote_pad_first(&vin->pad);
> if (!pad)
> return -EPIPE;
> diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-v4l2.c b/drivers/media/platform/renesas/rcar-vin/rcar-v4l2.c
> index db091af57c19..3a4c7433f061 100644
> --- a/drivers/media/platform/renesas/rcar-vin/rcar-v4l2.c
> +++ b/drivers/media/platform/renesas/rcar-vin/rcar-v4l2.c
> @@ -2,12 +2,11 @@
> /*
> * Driver for Renesas R-Car VIN
> *
> + * Copyright (C) 2025 Niklas Söderlund <niklas.soderlund@xxxxxxxxxxxx>
> * Copyright (C) 2016 Renesas Electronics Corp.
> * Copyright (C) 2011-2013 Renesas Solutions Corp.
> * Copyright (C) 2013 Cogent Embedded, Inc., <source@xxxxxxxxxxxxxxxxxx>
> * Copyright (C) 2008 Magnus Damm
> - *
> - * Based on the soc-camera rcar_vin driver
> */
>
> #include <linux/pm_runtime.h>
> @@ -230,101 +229,6 @@ static void rvin_format_align(struct rvin_dev *vin, struct v4l2_pix_format *pix)
> * V4L2
> */
>
> -static int rvin_reset_format(struct rvin_dev *vin)
> -{
> - struct v4l2_subdev_format fmt = {
> - .which = V4L2_SUBDEV_FORMAT_ACTIVE,
> - .pad = vin->parallel.source_pad,
> - };
> - int ret;
> -
> - ret = v4l2_subdev_call(vin_to_source(vin), pad, get_fmt, NULL, &fmt);
> - if (ret)
> - return ret;
> -
> - v4l2_fill_pix_format(&vin->format, &fmt.format);
> -
> - vin->crop.top = 0;
> - vin->crop.left = 0;
> - vin->crop.width = vin->format.width;
> - vin->crop.height = vin->format.height;
> -
> - /* Make use of the hardware interlacer by default. */
> - if (vin->format.field == V4L2_FIELD_ALTERNATE) {
> - vin->format.field = V4L2_FIELD_INTERLACED;
> - vin->format.height *= 2;
> - }
> -
> - rvin_format_align(vin, &vin->format);
> -
> - vin->compose.top = 0;
> - vin->compose.left = 0;
> - vin->compose.width = vin->format.width;
> - vin->compose.height = vin->format.height;
> -
> - return 0;
> -}
> -
> -static int rvin_try_format(struct rvin_dev *vin, u32 which,
> - struct v4l2_pix_format *pix,
> - struct v4l2_rect *src_rect)
> -{
> - struct v4l2_subdev *sd = vin_to_source(vin);
> - struct v4l2_subdev_state *sd_state;
> - static struct lock_class_key key;
> - struct v4l2_subdev_format format = {
> - .which = which,
> - .pad = vin->parallel.source_pad,
> - };
> - enum v4l2_field field;
> - u32 width, height;
> - int ret;
> -
> - /*
> - * FIXME: Drop this call, drivers are not supposed to use
> - * __v4l2_subdev_state_alloc().
> - */
> - sd_state = __v4l2_subdev_state_alloc(sd, "rvin:state->lock", &key);
> - if (IS_ERR(sd_state))
> - return PTR_ERR(sd_state);
> -
> - if (!rvin_format_from_pixel(vin, pix->pixelformat))
> - pix->pixelformat = RVIN_DEFAULT_FORMAT;
> -
> - v4l2_fill_mbus_format(&format.format, pix, vin->mbus_code);
> -
> - /* Allow the video device to override field and to scale */
> - field = pix->field;
> - width = pix->width;
> - height = pix->height;
> -
> - ret = v4l2_subdev_call(sd, pad, set_fmt, sd_state, &format);
> - if (ret < 0 && ret != -ENOIOCTLCMD)
> - goto done;
> - ret = 0;
> -
> - v4l2_fill_pix_format(pix, &format.format);
> -
> - if (src_rect) {
> - src_rect->top = 0;
> - src_rect->left = 0;
> - src_rect->width = pix->width;
> - src_rect->height = pix->height;
> - }
> -
> - if (field != V4L2_FIELD_ANY)
> - pix->field = field;
> -
> - pix->width = width;
> - pix->height = height;
> -
> - rvin_format_align(vin, pix);
> -done:
> - __v4l2_subdev_state_free(sd_state);
> -
> - return ret;
> -}
> -
> static int rvin_querycap(struct file *file, void *priv,
> struct v4l2_capability *cap)
> {
> @@ -333,42 +237,6 @@ static int rvin_querycap(struct file *file, void *priv,
> return 0;
> }
>
> -static int rvin_try_fmt_vid_cap(struct file *file, void *priv,
> - struct v4l2_format *f)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> -
> - return rvin_try_format(vin, V4L2_SUBDEV_FORMAT_TRY, &f->fmt.pix, NULL);
> -}
> -
> -static int rvin_s_fmt_vid_cap(struct file *file, void *priv,
> - struct v4l2_format *f)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - struct v4l2_rect fmt_rect, src_rect;
> - int ret;
> -
> - if (vb2_is_busy(&vin->queue))
> - return -EBUSY;
> -
> - ret = rvin_try_format(vin, V4L2_SUBDEV_FORMAT_ACTIVE, &f->fmt.pix,
> - &src_rect);
> - if (ret)
> - return ret;
> -
> - vin->format = f->fmt.pix;
> -
> - fmt_rect.top = 0;
> - fmt_rect.left = 0;
> - fmt_rect.width = vin->format.width;
> - fmt_rect.height = vin->format.height;
> -
> - v4l2_rect_map_inside(&vin->crop, &src_rect);
> - v4l2_rect_map_inside(&vin->compose, &fmt_rect);
> -
> - return 0;
> -}
> -
> static int rvin_g_fmt_vid_cap(struct file *file, void *priv,
> struct v4l2_format *f)
> {
> @@ -465,6 +333,7 @@ static int rvin_enum_fmt_vid_cap(struct file *file, void *priv,
>
> static int rvin_remote_rectangle(struct rvin_dev *vin, struct v4l2_rect *rect)
> {
> + struct media_pad *pad = media_pad_remote_pad_first(&vin->pad);
> struct v4l2_subdev_format fmt = {
> .which = V4L2_SUBDEV_FORMAT_ACTIVE,
> };
> @@ -472,18 +341,11 @@ static int rvin_remote_rectangle(struct rvin_dev *vin, struct v4l2_rect *rect)
> unsigned int index;
> int ret;
>
> - if (vin->info->use_mc) {
> - struct media_pad *pad = media_pad_remote_pad_first(&vin->pad);
> + if (!pad)
> + return -EINVAL;
>
> - if (!pad)
> - return -EINVAL;
> -
> - sd = media_entity_to_v4l2_subdev(pad->entity);
> - index = pad->index;
> - } else {
> - sd = vin_to_source(vin);
> - index = vin->parallel.source_pad;
> - }
> + sd = media_entity_to_v4l2_subdev(pad->entity);
> + index = pad->index;
>
> fmt.pad = index;
> ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &fmt);
> @@ -623,113 +485,6 @@ static int rvin_s_selection(struct file *file, void *fh,
> return 0;
> }
>
> -static int rvin_g_parm(struct file *file, void *priv,
> - struct v4l2_streamparm *parm)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - struct v4l2_subdev *sd = vin_to_source(vin);
> -
> - return v4l2_g_parm_cap(&vin->vdev, sd, parm);
> -}
> -
> -static int rvin_s_parm(struct file *file, void *priv,
> - struct v4l2_streamparm *parm)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - struct v4l2_subdev *sd = vin_to_source(vin);
> -
> - return v4l2_s_parm_cap(&vin->vdev, sd, parm);
> -}
> -
> -static int rvin_g_pixelaspect(struct file *file, void *priv,
> - int type, struct v4l2_fract *f)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - struct v4l2_subdev *sd = vin_to_source(vin);
> -
> - if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
> - return -EINVAL;
> -
> - return v4l2_subdev_call(sd, video, g_pixelaspect, f);
> -}
> -
> -static int rvin_enum_input(struct file *file, void *priv,
> - struct v4l2_input *i)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - struct v4l2_subdev *sd = vin_to_source(vin);
> - int ret;
> -
> - if (i->index != 0)
> - return -EINVAL;
> -
> - ret = v4l2_subdev_call(sd, video, g_input_status, &i->status);
> - if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV)
> - return ret;
> -
> - i->type = V4L2_INPUT_TYPE_CAMERA;
> -
> - if (v4l2_subdev_has_op(sd, pad, dv_timings_cap)) {
> - i->capabilities = V4L2_IN_CAP_DV_TIMINGS;
> - i->std = 0;
> - } else {
> - i->capabilities = V4L2_IN_CAP_STD;
> - i->std = vin->vdev.tvnorms;
> - }
> -
> - strscpy(i->name, "Camera", sizeof(i->name));
> -
> - return 0;
> -}
> -
> -static int rvin_g_input(struct file *file, void *priv, unsigned int *i)
> -{
> - *i = 0;
> - return 0;
> -}
> -
> -static int rvin_s_input(struct file *file, void *priv, unsigned int i)
> -{
> - if (i > 0)
> - return -EINVAL;
> - return 0;
> -}
> -
> -static int rvin_querystd(struct file *file, void *priv, v4l2_std_id *a)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - struct v4l2_subdev *sd = vin_to_source(vin);
> -
> - return v4l2_subdev_call(sd, video, querystd, a);
> -}
> -
> -static int rvin_s_std(struct file *file, void *priv, v4l2_std_id a)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - int ret;
> -
> - ret = v4l2_subdev_call(vin_to_source(vin), video, s_std, a);
> - if (ret < 0)
> - return ret;
> -
> - vin->std = a;
> -
> - /* Changing the standard will change the width/height */
> - return rvin_reset_format(vin);
> -}
> -
> -static int rvin_g_std(struct file *file, void *priv, v4l2_std_id *a)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> -
> - if (v4l2_subdev_has_op(vin_to_source(vin), pad, dv_timings_cap))
> - return -ENOIOCTLCMD;
> -
> - *a = vin->std;
> -
> - return 0;
> -}
> -
> static int rvin_subscribe_event(struct v4l2_fh *fh,
> const struct v4l2_event_subscription *sub)
> {
> @@ -740,167 +495,6 @@ static int rvin_subscribe_event(struct v4l2_fh *fh,
> return v4l2_ctrl_subscribe_event(fh, sub);
> }
>
> -static int rvin_enum_dv_timings(struct file *file, void *priv_fh,
> - struct v4l2_enum_dv_timings *timings)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - struct v4l2_subdev *sd = vin_to_source(vin);
> - int ret;
> -
> - if (timings->pad)
> - return -EINVAL;
> -
> - timings->pad = vin->parallel.sink_pad;
> -
> - ret = v4l2_subdev_call(sd, pad, enum_dv_timings, timings);
> -
> - timings->pad = 0;
> -
> - return ret;
> -}
> -
> -static int rvin_s_dv_timings(struct file *file, void *priv_fh,
> - struct v4l2_dv_timings *timings)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - struct v4l2_subdev *sd = vin_to_source(vin);
> - int ret;
> -
> - ret = v4l2_subdev_call(sd, pad, s_dv_timings,
> - vin->parallel.sink_pad, timings);
> - if (ret)
> - return ret;
> -
> - /* Changing the timings will change the width/height */
> - return rvin_reset_format(vin);
> -}
> -
> -static int rvin_g_dv_timings(struct file *file, void *priv_fh,
> - struct v4l2_dv_timings *timings)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - struct v4l2_subdev *sd = vin_to_source(vin);
> -
> - return v4l2_subdev_call(sd, pad, g_dv_timings,
> - vin->parallel.sink_pad, timings);
> -}
> -
> -static int rvin_query_dv_timings(struct file *file, void *priv_fh,
> - struct v4l2_dv_timings *timings)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - struct v4l2_subdev *sd = vin_to_source(vin);
> -
> - return v4l2_subdev_call(sd, pad, query_dv_timings,
> - vin->parallel.sink_pad, timings);
> -}
> -
> -static int rvin_dv_timings_cap(struct file *file, void *priv_fh,
> - struct v4l2_dv_timings_cap *cap)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - struct v4l2_subdev *sd = vin_to_source(vin);
> - int ret;
> -
> - if (cap->pad)
> - return -EINVAL;
> -
> - cap->pad = vin->parallel.sink_pad;
> -
> - ret = v4l2_subdev_call(sd, pad, dv_timings_cap, cap);
> -
> - cap->pad = 0;
> -
> - return ret;
> -}
> -
> -static int rvin_g_edid(struct file *file, void *fh, struct v4l2_edid *edid)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - struct v4l2_subdev *sd = vin_to_source(vin);
> - int ret;
> -
> - if (edid->pad)
> - return -EINVAL;
> -
> - edid->pad = vin->parallel.sink_pad;
> -
> - ret = v4l2_subdev_call(sd, pad, get_edid, edid);
> -
> - edid->pad = 0;
> -
> - return ret;
> -}
> -
> -static int rvin_s_edid(struct file *file, void *fh, struct v4l2_edid *edid)
> -{
> - struct rvin_dev *vin = video_drvdata(file);
> - struct v4l2_subdev *sd = vin_to_source(vin);
> - int ret;
> -
> - if (edid->pad)
> - return -EINVAL;
> -
> - edid->pad = vin->parallel.sink_pad;
> -
> - ret = v4l2_subdev_call(sd, pad, set_edid, edid);
> -
> - edid->pad = 0;
> -
> - return ret;
> -}
> -
> -static const struct v4l2_ioctl_ops rvin_ioctl_ops = {
> - .vidioc_querycap = rvin_querycap,
> - .vidioc_try_fmt_vid_cap = rvin_try_fmt_vid_cap,
> - .vidioc_g_fmt_vid_cap = rvin_g_fmt_vid_cap,
> - .vidioc_s_fmt_vid_cap = rvin_s_fmt_vid_cap,
> - .vidioc_enum_fmt_vid_cap = rvin_enum_fmt_vid_cap,
> -
> - .vidioc_g_selection = rvin_g_selection,
> - .vidioc_s_selection = rvin_s_selection,
> -
> - .vidioc_g_parm = rvin_g_parm,
> - .vidioc_s_parm = rvin_s_parm,
> -
> - .vidioc_g_pixelaspect = rvin_g_pixelaspect,
> -
> - .vidioc_enum_input = rvin_enum_input,
> - .vidioc_g_input = rvin_g_input,
> - .vidioc_s_input = rvin_s_input,
> -
> - .vidioc_dv_timings_cap = rvin_dv_timings_cap,
> - .vidioc_enum_dv_timings = rvin_enum_dv_timings,
> - .vidioc_g_dv_timings = rvin_g_dv_timings,
> - .vidioc_s_dv_timings = rvin_s_dv_timings,
> - .vidioc_query_dv_timings = rvin_query_dv_timings,
> -
> - .vidioc_g_edid = rvin_g_edid,
> - .vidioc_s_edid = rvin_s_edid,
> -
> - .vidioc_querystd = rvin_querystd,
> - .vidioc_g_std = rvin_g_std,
> - .vidioc_s_std = rvin_s_std,
> -
> - .vidioc_reqbufs = vb2_ioctl_reqbufs,
> - .vidioc_create_bufs = vb2_ioctl_create_bufs,
> - .vidioc_querybuf = vb2_ioctl_querybuf,
> - .vidioc_qbuf = vb2_ioctl_qbuf,
> - .vidioc_dqbuf = vb2_ioctl_dqbuf,
> - .vidioc_expbuf = vb2_ioctl_expbuf,
> - .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
> - .vidioc_streamon = vb2_ioctl_streamon,
> - .vidioc_streamoff = vb2_ioctl_streamoff,
> -
> - .vidioc_log_status = v4l2_ctrl_log_status,
> - .vidioc_subscribe_event = rvin_subscribe_event,
> - .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
> -};
> -
> -/* -----------------------------------------------------------------------------
> - * V4L2 Media Controller
> - */
> -
> static void rvin_mc_try_format(struct rvin_dev *vin,
> struct v4l2_pix_format *pix)
> {
> @@ -979,19 +573,6 @@ static const struct v4l2_ioctl_ops rvin_mc_ioctl_ops = {
> * File Operations
> */
>
> -static int rvin_power_parallel(struct rvin_dev *vin, bool on)
> -{
> - struct v4l2_subdev *sd = vin_to_source(vin);
> - int power = on ? 1 : 0;
> - int ret;
> -
> - ret = v4l2_subdev_call(sd, core, s_power, power);
> - if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV)
> - return ret;
> -
> - return 0;
> -}
> -
> static int rvin_open(struct file *file)
> {
> struct rvin_dev *vin = video_drvdata(file);
> @@ -1011,11 +592,7 @@ static int rvin_open(struct file *file)
> if (ret)
> goto err_unlock;
>
> - if (vin->info->use_mc)
> - ret = v4l2_pipeline_pm_get(&vin->vdev.entity);
> - else if (v4l2_fh_is_singular_file(file))
> - ret = rvin_power_parallel(vin, true);
> -
> + ret = v4l2_pipeline_pm_get(&vin->vdev.entity);
> if (ret < 0)
> goto err_open;
>
> @@ -1027,10 +604,7 @@ static int rvin_open(struct file *file)
>
> return 0;
> err_power:
> - if (vin->info->use_mc)
> - v4l2_pipeline_pm_put(&vin->vdev.entity);
> - else if (v4l2_fh_is_singular_file(file))
> - rvin_power_parallel(vin, false);
> + v4l2_pipeline_pm_put(&vin->vdev.entity);
> err_open:
> v4l2_fh_release(file);
> err_unlock:
> @@ -1044,23 +618,14 @@ static int rvin_open(struct file *file)
> static int rvin_release(struct file *file)
> {
> struct rvin_dev *vin = video_drvdata(file);
> - bool fh_singular;
> int ret;
>
> mutex_lock(&vin->lock);
>
> - /* Save the singular status before we call the clean-up helper */
> - fh_singular = v4l2_fh_is_singular_file(file);
> -
> /* the release helper will cleanup any on-going streaming */
> ret = _vb2_fop_release(file, NULL);
>
> - if (vin->info->use_mc) {
> - v4l2_pipeline_pm_put(&vin->vdev.entity);
> - } else {
> - if (fh_singular)
> - rvin_power_parallel(vin, false);
> - }
> + v4l2_pipeline_pm_put(&vin->vdev.entity);
>
> mutex_unlock(&vin->lock);
>
> @@ -1113,12 +678,6 @@ static void rvin_notify(struct v4l2_subdev *sd,
> container_of(sd->v4l2_dev, struct rvin_dev, v4l2_dev);
> unsigned int i;
>
> - /* If no media controller, no need to route the event. */
> - if (!vin->info->use_mc) {
> - rvin_notify_video_device(vin, notification, arg);
> - return;
> - }
> -
> group = vin->group;
>
> for (i = 0; i < RCAR_VIN_NUM; i++) {
> @@ -1153,7 +712,8 @@ int rvin_v4l2_register(struct rvin_dev *vin)
> vdev->lock = &vin->lock;
> vdev->fops = &rvin_fops;
> vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
> - V4L2_CAP_READWRITE;
> + V4L2_CAP_READWRITE | V4L2_CAP_IO_MC;
> + vdev->ioctl_ops = &rvin_mc_ioctl_ops;
>
> /* Set a default format */
> vin->format.pixelformat = RVIN_DEFAULT_FORMAT;
> @@ -1162,14 +722,6 @@ int rvin_v4l2_register(struct rvin_dev *vin)
> vin->format.field = RVIN_DEFAULT_FIELD;
> vin->format.colorspace = RVIN_DEFAULT_COLORSPACE;
>
> - if (vin->info->use_mc) {
> - vdev->device_caps |= V4L2_CAP_IO_MC;
> - vdev->ioctl_ops = &rvin_mc_ioctl_ops;
> - } else {
> - vdev->ioctl_ops = &rvin_ioctl_ops;
> - rvin_reset_format(vin);
> - }
> -
> rvin_format_align(vin, &vin->format);
>
> ret = video_register_device(&vin->vdev, VFL_TYPE_VIDEO, -1);
> diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-vin.h b/drivers/media/platform/renesas/rcar-vin/rcar-vin.h
> index 38ae2bd20b72..74bef5b8adad 100644
> --- a/drivers/media/platform/renesas/rcar-vin/rcar-vin.h
> +++ b/drivers/media/platform/renesas/rcar-vin/rcar-vin.h
> @@ -2,12 +2,11 @@
> /*
> * Driver for Renesas R-Car VIN
> *
> + * Copyright (C) 2025 Niklas Söderlund <niklas.soderlund@xxxxxxxxxxxx>
> * Copyright (C) 2016 Renesas Electronics Corp.
> * Copyright (C) 2011-2013 Renesas Solutions Corp.
> * Copyright (C) 2013 Cogent Embedded, Inc., <source@xxxxxxxxxxxxxxxxxx>
> * Copyright (C) 2008 Magnus Damm
> - *
> - * Based on the soc-camera rcar_vin driver
> */
>
> #ifndef __RCAR_VIN__
> @@ -79,8 +78,6 @@ struct rvin_video_format {
> * @mbus_type: media bus type
> * @bus: media bus parallel configuration
> * @source_pad: source pad of remote subdevice
> - * @sink_pad: sink pad of remote subdevice
> - *
> */
> struct rvin_parallel_entity {
> struct v4l2_async_connection *asc;
> @@ -90,7 +87,6 @@ struct rvin_parallel_entity {
> struct v4l2_mbus_config_parallel bus;
>
> unsigned int source_pad;
> - unsigned int sink_pad;
> };
>
> /**
> @@ -117,7 +113,6 @@ struct rvin_group_route {
> /**
> * struct rvin_info - Information about the particular VIN implementation
> * @model: VIN model
> - * @use_mc: use media controller instead of controlling subdevice
> * @use_isp: the VIN is connected to the ISP and not to the CSI-2
> * @nv12: support outputting NV12 pixel format
> * @raw10: support outputting RAW10 pixel format
> @@ -129,7 +124,6 @@ struct rvin_group_route {
> */
> struct rvin_info {
> enum model_id model;
> - bool use_mc;
> bool use_isp;
> bool nv12;
> bool raw10;
> @@ -176,7 +170,6 @@ struct rvin_info {
> * @crop: active cropping
> * @compose: active composing
> * @scaler: Optional scaler
> - * @std: active video standard of the video source
> *
> * @alpha: Alpha component to fill in for supported pixel formats
> */
> @@ -218,7 +211,6 @@ struct rvin_dev {
> struct v4l2_rect crop;
> struct v4l2_rect compose;
> void (*scaler)(struct rvin_dev *vin);
> - v4l2_std_id std;
>
> unsigned int alpha;
> };
--
Regards,
Laurent Pinchart
