mirror of https://gitee.com/openkylin/linux.git
[media] v4l: vsp1: Extract link creation to separate function
Link creation will be handled differently for the DU pipeline. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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@ -67,7 +67,7 @@ static irqreturn_t vsp1_irq_handler(int irq, void *data)
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*/
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/*
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* vsp1_create_links - Create links from all sources to the given sink
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* vsp1_create_sink_links - Create links from all sources to the given sink
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*
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* This function creates media links from all valid sources to the given sink
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* pad. Links that would be invalid according to the VSP1 hardware capabilities
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@ -76,26 +76,14 @@ static irqreturn_t vsp1_irq_handler(int irq, void *data)
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* - from a UDS to a UDS (UDS entities can't be chained)
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* - from an entity to itself (no loops are allowed)
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*/
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static int vsp1_create_links(struct vsp1_device *vsp1, struct vsp1_entity *sink)
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static int vsp1_create_sink_links(struct vsp1_device *vsp1,
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struct vsp1_entity *sink)
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{
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struct media_entity *entity = &sink->subdev.entity;
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struct vsp1_entity *source;
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unsigned int pad;
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int ret;
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if (sink->type == VSP1_ENTITY_RPF) {
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struct vsp1_rwpf *rpf = to_rwpf(&sink->subdev);
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/* RPFs have no source entities, just connect their source pad
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* to their video device.
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*/
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return media_create_pad_link(&rpf->video->video.entity, 0,
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&rpf->entity.subdev.entity,
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RWPF_PAD_SINK,
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MEDIA_LNK_FL_ENABLED |
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MEDIA_LNK_FL_IMMUTABLE);
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}
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list_for_each_entry(source, &vsp1->entities, list_dev) {
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u32 flags;
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@ -126,21 +114,63 @@ static int vsp1_create_links(struct vsp1_device *vsp1, struct vsp1_entity *sink)
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}
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}
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if (sink->type == VSP1_ENTITY_WPF) {
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struct vsp1_rwpf *wpf = to_rwpf(&sink->subdev);
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unsigned int flags = MEDIA_LNK_FL_ENABLED;
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return 0;
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}
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static int vsp1_create_links(struct vsp1_device *vsp1)
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{
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struct vsp1_entity *entity;
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unsigned int i;
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int ret;
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list_for_each_entry(entity, &vsp1->entities, list_dev) {
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if (entity->type == VSP1_ENTITY_LIF ||
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entity->type == VSP1_ENTITY_RPF)
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continue;
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ret = vsp1_create_sink_links(vsp1, entity);
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if (ret < 0)
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return ret;
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}
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if (vsp1->pdata.features & VSP1_HAS_LIF) {
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ret = media_create_pad_link(&vsp1->wpf[0]->entity.subdev.entity,
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RWPF_PAD_SOURCE,
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&vsp1->lif->entity.subdev.entity,
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LIF_PAD_SINK, 0);
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if (ret < 0)
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return ret;
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}
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for (i = 0; i < vsp1->pdata.rpf_count; ++i) {
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struct vsp1_rwpf *rpf = vsp1->rpf[i];
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ret = media_create_pad_link(&rpf->video->video.entity, 0,
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&rpf->entity.subdev.entity,
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RWPF_PAD_SINK,
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MEDIA_LNK_FL_ENABLED |
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MEDIA_LNK_FL_IMMUTABLE);
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if (ret < 0)
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return ret;
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}
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for (i = 0; i < vsp1->pdata.wpf_count; ++i) {
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/* Connect the video device to the WPF. All connections are
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* immutable except for the WPF0 source link if a LIF is
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* present.
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*/
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if (!(vsp1->pdata.features & VSP1_HAS_LIF) || sink->index != 0)
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struct vsp1_rwpf *wpf = vsp1->wpf[i];
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unsigned int flags = MEDIA_LNK_FL_ENABLED;
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if (!(vsp1->pdata.features & VSP1_HAS_LIF) || i != 0)
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flags |= MEDIA_LNK_FL_IMMUTABLE;
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return media_create_pad_link(&wpf->entity.subdev.entity,
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RWPF_PAD_SOURCE,
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&wpf->video->video.entity,
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0, flags);
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ret = media_create_pad_link(&wpf->entity.subdev.entity,
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RWPF_PAD_SOURCE,
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&wpf->video->video.entity, 0,
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flags);
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if (ret < 0)
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return ret;
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}
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return 0;
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@ -310,22 +340,9 @@ static int vsp1_create_entities(struct vsp1_device *vsp1)
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}
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/* Create links. */
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list_for_each_entry(entity, &vsp1->entities, list_dev) {
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if (entity->type == VSP1_ENTITY_LIF)
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continue;
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ret = vsp1_create_links(vsp1, entity);
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if (ret < 0)
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goto done;
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}
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if (vsp1->pdata.features & VSP1_HAS_LIF) {
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ret = media_create_pad_link(
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&vsp1->wpf[0]->entity.subdev.entity, RWPF_PAD_SOURCE,
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&vsp1->lif->entity.subdev.entity, LIF_PAD_SINK, 0);
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if (ret < 0)
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return ret;
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}
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ret = vsp1_create_links(vsp1);
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if (ret < 0)
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goto done;
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ret = v4l2_device_register_subdev_nodes(&vsp1->v4l2_dev);
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if (ret < 0)
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