diff options
author | Steve Longerbeam <slongerbeam@gmail.com> | 2017-12-14 20:04:44 -0500 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-12-15 14:06:58 -0500 |
commit | 9f6a0c59eba91c116f6cd7a487f4929faa07a7f8 (patch) | |
tree | 5bba05427e184f2de26ebb47a7e0911547970270 /drivers/staging/media | |
parent | 4eef678d32d3d2f5c7e9d6c58f4d78e275638b4f (diff) | |
download | op-kernel-dev-9f6a0c59eba91c116f6cd7a487f4929faa07a7f8.zip op-kernel-dev-9f6a0c59eba91c116f6cd7a487f4929faa07a7f8.tar.gz |
media: staging/imx: remove static subdev arrays
For more complex OF graphs, there will be more async subdevices
registered. Remove the static subdev[IMX_MEDIA_MAX_SUBDEVS] array,
so that imx-media places no limits on the number of async subdevs
that can be added and registered.
There were two uses for 'struct imx_media_subdev'. First was to act
as the async subdev list to be passed to v4l2_async_notifier_register().
Second was to aid in inheriting subdev controls to the capture devices,
and this is done by creating a list of capture devices that can be reached
from a subdev's source pad. So 'struct imx_media_subdev' also contained
a static array of 'struct imx_media_pad' for placing the capture device
lists at each pad.
'struct imx_media_subdev' has been completely removed. Instead, at async
completion, allocate an array of 'struct imx_media_pad' and attach it to
the subdev's host_priv pointer, in order to support subdev controls
inheritance.
Likewise, remove static async_ptrs[IMX_MEDIA_MAX_SUBDEVS] array.
Instead, allocate a 'struct imx_media_async_subdev' when forming
the async list, and add it to an asd_list list_head in
imx_media_add_async_subdev(). At async completion, allocate the
asd pointer list and pull the asd's off asd_list for
v4l2_async_notifier_register().
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/staging/media')
-rw-r--r-- | drivers/staging/media/imx/imx-ic-prp.c | 4 | ||||
-rw-r--r-- | drivers/staging/media/imx/imx-media-csi.c | 9 | ||||
-rw-r--r-- | drivers/staging/media/imx/imx-media-dev.c | 215 | ||||
-rw-r--r-- | drivers/staging/media/imx/imx-media-internal-sd.c | 51 | ||||
-rw-r--r-- | drivers/staging/media/imx/imx-media-of.c | 31 | ||||
-rw-r--r-- | drivers/staging/media/imx/imx-media-utils.c | 43 | ||||
-rw-r--r-- | drivers/staging/media/imx/imx-media.h | 81 |
7 files changed, 216 insertions, 218 deletions
diff --git a/drivers/staging/media/imx/imx-ic-prp.c b/drivers/staging/media/imx/imx-ic-prp.c index 9e41987..c6d7e80 100644 --- a/drivers/staging/media/imx/imx-ic-prp.c +++ b/drivers/staging/media/imx/imx-ic-prp.c @@ -300,7 +300,7 @@ static int prp_link_validate(struct v4l2_subdev *sd, { struct imx_ic_priv *ic_priv = v4l2_get_subdevdata(sd); struct prp_priv *priv = ic_priv->prp_priv; - struct imx_media_subdev *csi; + struct v4l2_subdev *csi; int ret; ret = v4l2_subdev_link_validate_default(sd, link, @@ -333,7 +333,7 @@ static int prp_link_validate(struct v4l2_subdev *sd, } if (csi) { - switch (csi->sd->grp_id) { + switch (csi->grp_id) { case IMX_MEDIA_GRP_ID_CSI0: priv->csi_id = 0; break; diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c index d7a4b7c..eb7be50 100644 --- a/drivers/staging/media/imx/imx-media-csi.c +++ b/drivers/staging/media/imx/imx-media-csi.c @@ -138,7 +138,6 @@ static int csi_get_upstream_endpoint(struct csi_priv *priv, struct v4l2_fwnode_endpoint *ep) { struct device_node *endpoint, *port; - struct imx_media_subdev *imxsd; struct media_entity *src; struct v4l2_subdev *sd; struct media_pad *pad; @@ -154,10 +153,10 @@ static int csi_get_upstream_endpoint(struct csi_priv *priv, * CSI-2 receiver if it is in the path, otherwise stay * with video mux. */ - imxsd = imx_media_find_upstream_subdev(priv->md, src, - IMX_MEDIA_GRP_ID_CSI2); - if (!IS_ERR(imxsd)) - src = &imxsd->sd->entity; + sd = imx_media_find_upstream_subdev(priv->md, src, + IMX_MEDIA_GRP_ID_CSI2); + if (!IS_ERR(sd)) + src = &sd->entity; } /* get source pad of entity directly upstream from src */ diff --git a/drivers/staging/media/imx/imx-media-dev.c b/drivers/staging/media/imx/imx-media-dev.c index 0369c35..71586ae 100644 --- a/drivers/staging/media/imx/imx-media-dev.c +++ b/drivers/staging/media/imx/imx-media-dev.c @@ -33,28 +33,28 @@ static inline struct imx_media_dev *notifier2dev(struct v4l2_async_notifier *n) } /* - * Find a subdev by fwnode or device name. This is called during + * Find an asd by fwnode or device name. This is called during * driver load to form the async subdev list and bind them. */ -struct imx_media_subdev * -imx_media_find_async_subdev(struct imx_media_dev *imxmd, - struct fwnode_handle *fwnode, - const char *devname) +static struct v4l2_async_subdev * +find_async_subdev(struct imx_media_dev *imxmd, + struct fwnode_handle *fwnode, + const char *devname) { - struct imx_media_subdev *imxsd; - int i; + struct imx_media_async_subdev *imxasd; + struct v4l2_async_subdev *asd; - for (i = 0; i < imxmd->subdev_notifier.num_subdevs; i++) { - imxsd = &imxmd->subdev[i]; - switch (imxsd->asd.match_type) { + list_for_each_entry(imxasd, &imxmd->asd_list, list) { + asd = &imxasd->asd; + switch (asd->match_type) { case V4L2_ASYNC_MATCH_FWNODE: - if (fwnode && imxsd->asd.match.fwnode.fwnode == fwnode) - return imxsd; + if (fwnode && asd->match.fwnode.fwnode == fwnode) + return asd; break; case V4L2_ASYNC_MATCH_DEVNAME: - if (devname && - !strcmp(imxsd->asd.match.device_name.name, devname)) - return imxsd; + if (devname && !strcmp(asd->match.device_name.name, + devname)) + return asd; break; default: break; @@ -72,51 +72,47 @@ imx_media_find_async_subdev(struct imx_media_dev *imxmd, * given platform_device. This is called during driver load when * forming the async subdev list. */ -struct imx_media_subdev * -imx_media_add_async_subdev(struct imx_media_dev *imxmd, - struct fwnode_handle *fwnode, - struct platform_device *pdev) +int imx_media_add_async_subdev(struct imx_media_dev *imxmd, + struct fwnode_handle *fwnode, + struct platform_device *pdev) { struct device_node *np = to_of_node(fwnode); - struct imx_media_subdev *imxsd; + struct imx_media_async_subdev *imxasd; struct v4l2_async_subdev *asd; const char *devname = NULL; - int sd_idx; + int ret = 0; mutex_lock(&imxmd->mutex); if (pdev) devname = dev_name(&pdev->dev); - /* return -EEXIST if this subdev already added */ - if (imx_media_find_async_subdev(imxmd, fwnode, devname)) { + /* return -EEXIST if this asd already added */ + if (find_async_subdev(imxmd, fwnode, devname)) { dev_dbg(imxmd->md.dev, "%s: already added %s\n", __func__, np ? np->name : devname); - imxsd = ERR_PTR(-EEXIST); + ret = -EEXIST; goto out; } - sd_idx = imxmd->subdev_notifier.num_subdevs; - if (sd_idx >= IMX_MEDIA_MAX_SUBDEVS) { - dev_err(imxmd->md.dev, "%s: too many subdevs! can't add %s\n", - __func__, np ? np->name : devname); - imxsd = ERR_PTR(-ENOSPC); + imxasd = devm_kzalloc(imxmd->md.dev, sizeof(*imxasd), GFP_KERNEL); + if (!imxasd) { + ret = -ENOMEM; goto out; } + asd = &imxasd->asd; - imxsd = &imxmd->subdev[sd_idx]; - - asd = &imxsd->asd; if (fwnode) { asd->match_type = V4L2_ASYNC_MATCH_FWNODE; asd->match.fwnode.fwnode = fwnode; } else { asd->match_type = V4L2_ASYNC_MATCH_DEVNAME; asd->match.device_name.name = devname; - imxsd->pdev = pdev; + imxasd->pdev = pdev; } - imxmd->async_ptrs[sd_idx] = asd; + list_add_tail(&imxasd->list, &imxmd->asd_list); + imxmd->subdev_notifier.num_subdevs++; dev_dbg(imxmd->md.dev, "%s: added %s, match type %s\n", @@ -124,7 +120,7 @@ imx_media_add_async_subdev(struct imx_media_dev *imxmd, out: mutex_unlock(&imxmd->mutex); - return imxsd; + return ret; } /* @@ -162,56 +158,48 @@ static int imx_media_subdev_bound(struct v4l2_async_notifier *notifier, struct v4l2_async_subdev *asd) { struct imx_media_dev *imxmd = notifier2dev(notifier); - struct imx_media_subdev *imxsd; int ret = 0; mutex_lock(&imxmd->mutex); - imxsd = imx_media_find_async_subdev(imxmd, sd->fwnode, - dev_name(sd->dev)); - if (!imxsd) { - ret = -EINVAL; - goto out; - } - if (sd->grp_id & IMX_MEDIA_GRP_ID_CSI) { ret = imx_media_get_ipu(imxmd, sd); if (ret) - goto out_unlock; + goto out; } - /* attach the subdev */ - imxsd->sd = sd; + v4l2_info(&imxmd->v4l2_dev, "subdev %s bound\n", sd->name); out: - if (ret) - v4l2_warn(&imxmd->v4l2_dev, - "Received unknown subdev %s\n", sd->name); - else - v4l2_info(&imxmd->v4l2_dev, - "Registered subdev %s\n", sd->name); - -out_unlock: mutex_unlock(&imxmd->mutex); return ret; } /* - * create the media links from all pads and their links. - * Called after all subdevs have registered. + * create the media links for all subdevs that registered async. + * Called after all async subdevs have bound. */ -static int imx_media_create_links(struct imx_media_dev *imxmd) +static int imx_media_create_links(struct v4l2_async_notifier *notifier) { - struct imx_media_subdev *imxsd; + struct imx_media_dev *imxmd = notifier2dev(notifier); struct v4l2_subdev *sd; - int i, ret; - - for (i = 0; i < imxmd->num_subdevs; i++) { - imxsd = &imxmd->subdev[i]; - sd = imxsd->sd; + int ret; - if (((sd->grp_id & IMX_MEDIA_GRP_ID_CSI) || imxsd->pdev)) { - /* this is an internal subdev or a CSI */ - ret = imx_media_create_internal_links(imxmd, imxsd); + /* + * Only links are created between subdevices that are known + * to the async notifier. If there are other non-async subdevices, + * they were created internally by some subdevice (smiapp is one + * example). In those cases it is expected the subdevice is + * responsible for creating those internal links. + */ + list_for_each_entry(sd, ¬ifier->done, async_list) { + switch (sd->grp_id) { + case IMX_MEDIA_GRP_ID_VDIC: + case IMX_MEDIA_GRP_ID_IC_PRP: + case IMX_MEDIA_GRP_ID_IC_PRPENC: + case IMX_MEDIA_GRP_ID_IC_PRPVF: + case IMX_MEDIA_GRP_ID_CSI0: + case IMX_MEDIA_GRP_ID_CSI1: + ret = imx_media_create_internal_links(imxmd, sd); if (ret) return ret; /* @@ -220,10 +208,12 @@ static int imx_media_create_links(struct imx_media_dev *imxmd) * to the CSI sink pads. */ if (sd->grp_id & IMX_MEDIA_GRP_ID_CSI) - imx_media_create_csi_of_links(imxmd, imxsd); - } else { + imx_media_create_csi_of_links(imxmd, sd); + break; + default: /* this is an external fwnode subdev */ - imx_media_create_of_links(imxmd, imxsd); + imx_media_create_of_links(imxmd, sd); + break; } } @@ -239,7 +229,6 @@ static int imx_media_add_vdev_to_pad(struct imx_media_dev *imxmd, struct media_pad *srcpad) { struct media_entity *entity = srcpad->entity; - struct imx_media_subdev *imxsd; struct imx_media_pad *imxpad; struct media_link *link; struct v4l2_subdev *sd; @@ -250,14 +239,18 @@ static int imx_media_add_vdev_to_pad(struct imx_media_dev *imxmd, return 0; sd = media_entity_to_v4l2_subdev(entity); - imxsd = imx_media_find_subdev_by_sd(imxmd, sd); - if (IS_ERR(imxsd)) { - v4l2_err(&imxmd->v4l2_dev, "failed to find subdev for entity %s, sd %p err %ld\n", - entity->name, sd, PTR_ERR(imxsd)); + + imxpad = to_imx_media_pad(sd, srcpad->index); + if (!imxpad) { + v4l2_warn(&imxmd->v4l2_dev, "%s:%u has no vdev list!\n", + entity->name, srcpad->index); + /* + * shouldn't happen, but no reason to fail driver load, + * just skip this entity. + */ return 0; } - imxpad = &imxsd->pad[srcpad->index]; vdev_idx = imxpad->num_vdevs; /* just return if we've been here before */ @@ -296,6 +289,27 @@ static int imx_media_add_vdev_to_pad(struct imx_media_dev *imxmd, return 0; } +static int imx_media_alloc_pad_vdev_lists(struct imx_media_dev *imxmd) +{ + struct imx_media_pad *imxpads; + struct media_entity *entity; + struct v4l2_subdev *sd; + + list_for_each_entry(sd, &imxmd->v4l2_dev.subdevs, list) { + entity = &sd->entity; + imxpads = devm_kzalloc(imxmd->md.dev, + entity->num_pads * sizeof(*imxpads), + GFP_KERNEL); + if (!imxpads) + return -ENOMEM; + + /* attach imxpads to the subdev's host private pointer */ + sd->host_priv = imxpads; + } + + return 0; +} + /* form the vdev lists in all imx-media source pads */ static int imx_media_create_pad_vdev_lists(struct imx_media_dev *imxmd) { @@ -303,6 +317,10 @@ static int imx_media_create_pad_vdev_lists(struct imx_media_dev *imxmd) struct media_link *link; int i, ret; + ret = imx_media_alloc_pad_vdev_lists(imxmd); + if (ret) + return ret; + for (i = 0; i < imxmd->num_vdevs; i++) { vdev = imxmd->vdev[i]; link = list_first_entry(&vdev->vfd->entity.links, @@ -319,20 +337,11 @@ static int imx_media_create_pad_vdev_lists(struct imx_media_dev *imxmd) static int imx_media_probe_complete(struct v4l2_async_notifier *notifier) { struct imx_media_dev *imxmd = notifier2dev(notifier); - int i, ret; + int ret; mutex_lock(&imxmd->mutex); - /* make sure all subdevs were bound */ - for (i = 0; i < imxmd->num_subdevs; i++) { - if (!imxmd->subdev[i].sd) { - v4l2_err(&imxmd->v4l2_dev, "unbound subdev!\n"); - ret = -ENODEV; - goto unlock; - } - } - - ret = imx_media_create_links(imxmd); + ret = imx_media_create_links(notifier); if (ret) goto unlock; @@ -401,7 +410,6 @@ static int imx_media_link_notify(struct media_link *link, u32 flags, unsigned int notification) { struct media_entity *source = link->source->entity; - struct imx_media_subdev *imxsd; struct imx_media_pad *imxpad; struct imx_media_dev *imxmd; struct video_device *vfd; @@ -421,10 +429,11 @@ static int imx_media_link_notify(struct media_link *link, u32 flags, imxmd = dev_get_drvdata(sd->v4l2_dev->dev); - imxsd = imx_media_find_subdev_by_sd(imxmd, sd); - if (IS_ERR(imxsd)) - return PTR_ERR(imxsd); - imxpad = &imxsd->pad[pad_idx]; + imxpad = to_imx_media_pad(sd, pad_idx); + if (!imxpad) { + /* shouldn't happen, but no reason to fail link setup */ + return 0; + } /* * Before disabling a link, reset controls for all video @@ -468,8 +477,10 @@ static int imx_media_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct device_node *node = dev->of_node; + struct imx_media_async_subdev *imxasd; + struct v4l2_async_subdev **subdevs; struct imx_media_dev *imxmd; - int ret; + int num_subdevs, i, ret; imxmd = devm_kzalloc(dev, sizeof(*imxmd), GFP_KERNEL); if (!imxmd) @@ -498,6 +509,8 @@ static int imx_media_probe(struct platform_device *pdev) dev_set_drvdata(imxmd->v4l2_dev.dev, imxmd); + INIT_LIST_HEAD(&imxmd->asd_list); + ret = imx_media_add_of_subdevs(imxmd, node); if (ret) { v4l2_err(&imxmd->v4l2_dev, @@ -512,15 +525,27 @@ static int imx_media_probe(struct platform_device *pdev) goto unreg_dev; } + num_subdevs = imxmd->subdev_notifier.num_subdevs; + /* no subdevs? just bail */ - imxmd->num_subdevs = imxmd->subdev_notifier.num_subdevs; - if (imxmd->num_subdevs == 0) { + if (num_subdevs == 0) { ret = -ENODEV; goto unreg_dev; } + subdevs = devm_kzalloc(imxmd->md.dev, sizeof(*subdevs) * num_subdevs, + GFP_KERNEL); + if (!subdevs) { + ret = -ENOMEM; + goto unreg_dev; + } + + i = 0; + list_for_each_entry(imxasd, &imxmd->asd_list, list) + subdevs[i++] = &imxasd->asd; + /* prepare the async subdev notifier and register it */ - imxmd->subdev_notifier.subdevs = imxmd->async_ptrs; + imxmd->subdev_notifier.subdevs = subdevs; imxmd->subdev_notifier.ops = &imx_media_subdev_ops; ret = v4l2_async_notifier_register(&imxmd->v4l2_dev, &imxmd->subdev_notifier); diff --git a/drivers/staging/media/imx/imx-media-internal-sd.c b/drivers/staging/media/imx/imx-media-internal-sd.c index 53f2383..70833fe 100644 --- a/drivers/staging/media/imx/imx-media-internal-sd.c +++ b/drivers/staging/media/imx/imx-media-internal-sd.c @@ -68,6 +68,8 @@ struct internal_link { int remote_pad; }; +/* max pads per internal-sd */ +#define MAX_INTERNAL_PADS 8 /* max links per internal-sd pad */ #define MAX_INTERNAL_LINKS 8 @@ -77,7 +79,7 @@ struct internal_pad { static const struct internal_subdev { const struct internal_subdev_id *id; - struct internal_pad pad[IMX_MEDIA_MAX_PADS]; + struct internal_pad pad[MAX_INTERNAL_PADS]; } int_subdev[num_isd] = { [isd_csi0] = { .id = &isd_id[isd_csi0], @@ -181,9 +183,9 @@ static const struct internal_subdev *find_intsd_by_grp_id(u32 grp_id) return NULL; } -static struct imx_media_subdev *find_sink(struct imx_media_dev *imxmd, - struct imx_media_subdev *src, - const struct internal_link *link) +static struct v4l2_subdev *find_sink(struct imx_media_dev *imxmd, + struct v4l2_subdev *src, + const struct internal_link *link) { char sink_devname[32]; int ipu_id; @@ -194,20 +196,20 @@ static struct imx_media_subdev *find_sink(struct imx_media_dev *imxmd, * a CSI, it has different struct ipu_client_platformdata which * does not contain IPU id. */ - if (sscanf(src->sd->name, "ipu%d", &ipu_id) != 1) + if (sscanf(src->name, "ipu%d", &ipu_id) != 1) return NULL; isd_to_devname(sink_devname, sizeof(sink_devname), link->remote, ipu_id - 1); - return imx_media_find_async_subdev(imxmd, NULL, sink_devname); + return imx_media_find_subdev_by_devname(imxmd, sink_devname); } static int create_ipu_internal_link(struct imx_media_dev *imxmd, - struct imx_media_subdev *src, + struct v4l2_subdev *src, const struct internal_link *link) { - struct imx_media_subdev *sink; + struct v4l2_subdev *sink; int ret; sink = find_sink(imxmd, src, link); @@ -215,11 +217,11 @@ static int create_ipu_internal_link(struct imx_media_dev *imxmd, return -ENODEV; v4l2_info(&imxmd->v4l2_dev, "%s:%d -> %s:%d\n", - src->sd->name, link->local_pad, - sink->sd->name, link->remote_pad); + src->name, link->local_pad, + sink->name, link->remote_pad); - ret = media_create_pad_link(&src->sd->entity, link->local_pad, - &sink->sd->entity, link->remote_pad, 0); + ret = media_create_pad_link(&src->entity, link->local_pad, + &sink->entity, link->remote_pad, 0); if (ret) v4l2_err(&imxmd->v4l2_dev, "create_pad_link failed: %d\n", ret); @@ -228,16 +230,15 @@ static int create_ipu_internal_link(struct imx_media_dev *imxmd, } int imx_media_create_internal_links(struct imx_media_dev *imxmd, - struct imx_media_subdev *imxsd) + struct v4l2_subdev *sd) { - struct v4l2_subdev *sd = imxsd->sd; const struct internal_subdev *intsd; const struct internal_pad *intpad; const struct internal_link *link; struct media_pad *pad; int i, j, ret; - intsd = find_intsd_by_grp_id(imxsd->sd->grp_id); + intsd = find_intsd_by_grp_id(sd->grp_id); if (!intsd) return -ENODEV; @@ -255,7 +256,7 @@ int imx_media_create_internal_links(struct imx_media_dev *imxmd, if (!link->remote) break; - ret = create_ipu_internal_link(imxmd, imxsd, link); + ret = create_ipu_internal_link(imxmd, sd, link); if (ret) return ret; } @@ -271,7 +272,6 @@ static int add_internal_subdev(struct imx_media_dev *imxmd, { struct imx_media_internal_sd_platformdata pdata; struct platform_device_info pdevinfo = {0}; - struct imx_media_subdev *imxsd; struct platform_device *pdev; pdata.grp_id = isd->id->grp_id; @@ -294,11 +294,7 @@ static int add_internal_subdev(struct imx_media_dev *imxmd, if (IS_ERR(pdev)) return PTR_ERR(pdev); - imxsd = imx_media_add_async_subdev(imxmd, NULL, pdev); - if (IS_ERR(imxsd)) - return PTR_ERR(imxsd); - - return 0; + return imx_media_add_async_subdev(imxmd, NULL, pdev); } /* adds the internal subdevs in one ipu */ @@ -353,13 +349,12 @@ remove: void imx_media_remove_internal_subdevs(struct imx_media_dev *imxmd) { - struct imx_media_subdev *imxsd; - int i; + struct imx_media_async_subdev *imxasd; - for (i = 0; i < imxmd->subdev_notifier.num_subdevs; i++) { - imxsd = &imxmd->subdev[i]; - if (!imxsd->pdev) + list_for_each_entry(imxasd, &imxmd->asd_list, list) { + if (!imxasd->pdev) continue; - platform_device_unregister(imxsd->pdev); + + platform_device_unregister(imxasd->pdev); } } diff --git a/drivers/staging/media/imx/imx-media-of.c b/drivers/staging/media/imx/imx-media-of.c index eb7a7f2..acde372 100644 --- a/drivers/staging/media/imx/imx-media-of.c +++ b/drivers/staging/media/imx/imx-media-of.c @@ -76,7 +76,6 @@ static int of_parse_subdev(struct imx_media_dev *imxmd, struct device_node *sd_np, bool is_csi_port) { - struct imx_media_subdev *imxsd; int i, num_ports, ret; if (!of_device_is_available(sd_np)) { @@ -87,9 +86,8 @@ of_parse_subdev(struct imx_media_dev *imxmd, struct device_node *sd_np, } /* register this subdev with async notifier */ - imxsd = imx_media_add_async_subdev(imxmd, of_fwnode_handle(sd_np), - NULL); - ret = PTR_ERR_OR_ZERO(imxsd); + ret = imx_media_add_async_subdev(imxmd, of_fwnode_handle(sd_np), + NULL); if (ret) { if (ret == -EEXIST) { /* already added, everything is fine */ @@ -159,37 +157,35 @@ int imx_media_add_of_subdevs(struct imx_media_dev *imxmd, } /* - * Create a single media link to/from imxsd using a fwnode link. + * Create a single media link to/from sd using a fwnode link. * * NOTE: this function assumes an OF port node is equivalent to * a media pad (port id equal to media pad index), and that an * OF endpoint node is equivalent to a media link. */ static int create_of_link(struct imx_media_dev *imxmd, - struct imx_media_subdev *imxsd, + struct v4l2_subdev *sd, struct v4l2_fwnode_link *link) { - struct v4l2_subdev *sd = imxsd->sd; - struct imx_media_subdev *remote; - struct v4l2_subdev *src, *sink; + struct v4l2_subdev *remote, *src, *sink; int src_pad, sink_pad; if (link->local_port >= sd->entity.num_pads) return -EINVAL; - remote = imx_media_find_async_subdev(imxmd, link->remote_node, NULL); + remote = imx_media_find_subdev_by_fwnode(imxmd, link->remote_node); if (!remote) return 0; if (sd->entity.pads[link->local_port].flags & MEDIA_PAD_FL_SINK) { - src = remote->sd; + src = remote; src_pad = link->remote_port; sink = sd; sink_pad = link->local_port; } else { src = sd; src_pad = link->local_port; - sink = remote->sd; + sink = remote; sink_pad = link->remote_port; } @@ -206,12 +202,11 @@ static int create_of_link(struct imx_media_dev *imxmd, } /* - * Create media links to/from imxsd using its device-tree endpoints. + * Create media links to/from sd using its device-tree endpoints. */ int imx_media_create_of_links(struct imx_media_dev *imxmd, - struct imx_media_subdev *imxsd) + struct v4l2_subdev *sd) { - struct v4l2_subdev *sd = imxsd->sd; struct v4l2_fwnode_link link; struct device_node *ep; int ret; @@ -221,7 +216,7 @@ int imx_media_create_of_links(struct imx_media_dev *imxmd, if (ret) continue; - ret = create_of_link(imxmd, imxsd, &link); + ret = create_of_link(imxmd, sd, &link); v4l2_fwnode_put_link(&link); if (ret) return ret; @@ -235,9 +230,9 @@ int imx_media_create_of_links(struct imx_media_dev *imxmd, * using its device-tree endpoints. */ int imx_media_create_csi_of_links(struct imx_media_dev *imxmd, - struct imx_media_subdev *csi) + struct v4l2_subdev *csi) { - struct device_node *csi_np = csi->sd->dev->of_node; + struct device_node *csi_np = csi->dev->of_node; struct fwnode_handle *fwnode, *csi_ep; struct v4l2_fwnode_link link; struct device_node *ep; diff --git a/drivers/staging/media/imx/imx-media-utils.c b/drivers/staging/media/imx/imx-media-utils.c index 51d7e18..e143a88 100644 --- a/drivers/staging/media/imx/imx-media-utils.c +++ b/drivers/staging/media/imx/imx-media-utils.c @@ -668,38 +668,35 @@ void imx_media_grp_id_to_sd_name(char *sd_name, int sz, u32 grp_id, int ipu_id) } EXPORT_SYMBOL_GPL(imx_media_grp_id_to_sd_name); -struct imx_media_subdev * -imx_media_find_subdev_by_sd(struct imx_media_dev *imxmd, - struct v4l2_subdev *sd) +struct v4l2_subdev * +imx_media_find_subdev_by_fwnode(struct imx_media_dev *imxmd, + struct fwnode_handle *fwnode) { - struct imx_media_subdev *imxsd; - int i; + struct v4l2_subdev *sd; - for (i = 0; i < imxmd->num_subdevs; i++) { - imxsd = &imxmd->subdev[i]; - if (sd == imxsd->sd) - return imxsd; + list_for_each_entry(sd, &imxmd->v4l2_dev.subdevs, list) { + if (sd->fwnode == fwnode) + return sd; } - return ERR_PTR(-ENODEV); + return NULL; } -EXPORT_SYMBOL_GPL(imx_media_find_subdev_by_sd); +EXPORT_SYMBOL_GPL(imx_media_find_subdev_by_fwnode); -struct imx_media_subdev * -imx_media_find_subdev_by_id(struct imx_media_dev *imxmd, u32 grp_id) +struct v4l2_subdev * +imx_media_find_subdev_by_devname(struct imx_media_dev *imxmd, + const char *devname) { - struct imx_media_subdev *imxsd; - int i; + struct v4l2_subdev *sd; - for (i = 0; i < imxmd->num_subdevs; i++) { - imxsd = &imxmd->subdev[i]; - if (imxsd->sd && imxsd->sd->grp_id == grp_id) - return imxsd; + list_for_each_entry(sd, &imxmd->v4l2_dev.subdevs, list) { + if (!strcmp(devname, dev_name(sd->dev))) + return sd; } - return ERR_PTR(-ENODEV); + return NULL; } -EXPORT_SYMBOL_GPL(imx_media_find_subdev_by_id); +EXPORT_SYMBOL_GPL(imx_media_find_subdev_by_devname); /* * Adds a video device to the master video device list. This is called by @@ -842,7 +839,7 @@ EXPORT_SYMBOL_GPL(imx_media_find_upstream_pad); * the current pipeline. * Must be called with mdev->graph_mutex held. */ -struct imx_media_subdev * +struct v4l2_subdev * imx_media_find_upstream_subdev(struct imx_media_dev *imxmd, struct media_entity *start_entity, u32 grp_id) @@ -853,7 +850,7 @@ imx_media_find_upstream_subdev(struct imx_media_dev *imxmd, if (!sd) return ERR_PTR(-ENODEV); - return imx_media_find_subdev_by_sd(imxmd, sd); + return sd; } EXPORT_SYMBOL_GPL(imx_media_find_upstream_subdev); diff --git a/drivers/staging/media/imx/imx-media.h b/drivers/staging/media/imx/imx-media.h index 32ec8d2..5089a0d 100644 --- a/drivers/staging/media/imx/imx-media.h +++ b/drivers/staging/media/imx/imx-media.h @@ -11,6 +11,7 @@ #ifndef _IMX_MEDIA_H #define _IMX_MEDIA_H +#include <linux/platform_device.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-fwnode.h> @@ -18,23 +19,8 @@ #include <media/videobuf2-dma-contig.h> #include <video/imx-ipu-v3.h> -/* - * This is somewhat arbitrary, but we need at least: - * - 4 video devices per IPU - * - 3 IC subdevs per IPU - * - 1 VDIC subdev per IPU - * - 2 CSI subdevs per IPU - * - 1 mipi-csi2 receiver subdev - * - 2 video-mux subdevs - * - 2 camera sensor subdevs per IPU (1 parallel, 1 mipi-csi2) - * - */ /* max video devices */ #define IMX_MEDIA_MAX_VDEVS 8 -/* max subdevices */ -#define IMX_MEDIA_MAX_SUBDEVS 32 -/* max pads per subdev */ -#define IMX_MEDIA_MAX_PADS 16 /* * Pad definitions for the subdevs with multiple source or @@ -105,6 +91,7 @@ static inline struct imx_media_buffer *to_imx_media_vb(struct vb2_buffer *vb) return container_of(vbuf, struct imx_media_buffer, vbuf); } +/* to support control inheritance to video devices */ struct imx_media_pad { /* * list of video devices that can be reached from this pad, @@ -114,22 +101,34 @@ struct imx_media_pad { int num_vdevs; }; +static inline struct imx_media_pad * +to_imx_media_pad(struct v4l2_subdev *sd, int pad_index) +{ + struct imx_media_pad *imxpads = sd->host_priv; + + return imxpads ? &imxpads[pad_index] : NULL; +} + struct imx_media_internal_sd_platformdata { char sd_name[V4L2_SUBDEV_NAME_SIZE]; u32 grp_id; int ipu_id; }; -struct imx_media_subdev { - struct v4l2_async_subdev asd; - struct v4l2_subdev *sd; /* set when bound */ - - struct imx_media_pad pad[IMX_MEDIA_MAX_PADS]; - /* the platform device if this is an IPU-internal subdev */ +struct imx_media_async_subdev { + struct v4l2_async_subdev asd; + /* the platform device of IPU-internal subdevs */ struct platform_device *pdev; + struct list_head list; }; +static inline struct imx_media_async_subdev * +to_imx_media_asd(struct v4l2_async_subdev *asd) +{ + return container_of(asd, struct imx_media_async_subdev, asd); +} + struct imx_media_dev { struct media_device md; struct v4l2_device v4l2_dev; @@ -139,10 +138,6 @@ struct imx_media_dev { struct mutex mutex; /* protect elements below */ - /* master subdevice list */ - struct imx_media_subdev subdev[IMX_MEDIA_MAX_SUBDEVS]; - int num_subdevs; - /* master video device list */ struct imx_media_video_dev *vdev[IMX_MEDIA_MAX_VDEVS]; int num_vdevs; @@ -151,7 +146,7 @@ struct imx_media_dev { struct ipu_soc *ipu[2]; /* for async subdev registration */ - struct v4l2_async_subdev *async_ptrs[IMX_MEDIA_MAX_SUBDEVS]; + struct list_head asd_list; struct v4l2_async_notifier subdev_notifier; }; @@ -172,7 +167,6 @@ int imx_media_enum_mbus_format(u32 *code, u32 index, enum codespace_sel cs_sel, const struct imx_media_pixfmt * imx_media_find_ipu_format(u32 code, enum codespace_sel cs_sel); int imx_media_enum_ipu_format(u32 *code, u32 index, enum codespace_sel cs_sel); - int imx_media_init_mbus_fmt(struct v4l2_mbus_framefmt *mbus, u32 width, u32 height, u32 code, u32 field, const struct imx_media_pixfmt **cc); @@ -186,30 +180,23 @@ int imx_media_mbus_fmt_to_ipu_image(struct ipu_image *image, struct v4l2_mbus_framefmt *mbus); int imx_media_ipu_image_to_mbus_fmt(struct v4l2_mbus_framefmt *mbus, struct ipu_image *image); - -struct imx_media_subdev * -imx_media_find_async_subdev(struct imx_media_dev *imxmd, - struct fwnode_handle *fwnode, - const char *devname); -struct imx_media_subdev * -imx_media_add_async_subdev(struct imx_media_dev *imxmd, - struct fwnode_handle *fwnode, - struct platform_device *pdev); - +int imx_media_add_async_subdev(struct imx_media_dev *imxmd, + struct fwnode_handle *fwnode, + struct platform_device *pdev); void imx_media_grp_id_to_sd_name(char *sd_name, int sz, u32 grp_id, int ipu_id); int imx_media_add_internal_subdevs(struct imx_media_dev *imxmd); int imx_media_create_internal_links(struct imx_media_dev *imxmd, - struct imx_media_subdev *imxsd); + struct v4l2_subdev *sd); void imx_media_remove_internal_subdevs(struct imx_media_dev *imxmd); -struct imx_media_subdev * -imx_media_find_subdev_by_sd(struct imx_media_dev *imxmd, - struct v4l2_subdev *sd); -struct imx_media_subdev * -imx_media_find_subdev_by_id(struct imx_media_dev *imxmd, - u32 grp_id); +struct v4l2_subdev * +imx_media_find_subdev_by_fwnode(struct imx_media_dev *imxmd, + struct fwnode_handle *fwnode); +struct v4l2_subdev * +imx_media_find_subdev_by_devname(struct imx_media_dev *imxmd, + const char *devname); int imx_media_add_video_device(struct imx_media_dev *imxmd, struct imx_media_video_dev *vdev); int imx_media_find_mipi_csi2_channel(struct imx_media_dev *imxmd, @@ -218,7 +205,7 @@ struct media_pad * imx_media_find_upstream_pad(struct imx_media_dev *imxmd, struct media_entity *start_entity, u32 grp_id); -struct imx_media_subdev * +struct v4l2_subdev * imx_media_find_upstream_subdev(struct imx_media_dev *imxmd, struct media_entity *start_entity, u32 grp_id); @@ -253,9 +240,9 @@ void imx_media_fim_free(struct imx_media_fim *fim); int imx_media_add_of_subdevs(struct imx_media_dev *dev, struct device_node *np); int imx_media_create_of_links(struct imx_media_dev *imxmd, - struct imx_media_subdev *imxsd); + struct v4l2_subdev *sd); int imx_media_create_csi_of_links(struct imx_media_dev *imxmd, - struct imx_media_subdev *csi); + struct v4l2_subdev *csi); /* imx-media-capture.c */ struct imx_media_video_dev * |