diff options
Diffstat (limited to 'drivers/media/pci/intel/ivsc/mei_csi.c')
| -rw-r--r-- | drivers/media/pci/intel/ivsc/mei_csi.c | 83 |
1 files changed, 53 insertions, 30 deletions
diff --git a/drivers/media/pci/intel/ivsc/mei_csi.c b/drivers/media/pci/intel/ivsc/mei_csi.c index 2a6b828fd8dd..15b905f66ab7 100644 --- a/drivers/media/pci/intel/ivsc/mei_csi.c +++ b/drivers/media/pci/intel/ivsc/mei_csi.c @@ -338,7 +338,7 @@ mei_csi_get_pad_format(struct v4l2_subdev *sd, switch (which) { case V4L2_SUBDEV_FORMAT_TRY: - return v4l2_subdev_get_try_format(sd, sd_state, pad); + return v4l2_subdev_state_get_format(sd_state, pad); case V4L2_SUBDEV_FORMAT_ACTIVE: return &csi->format_mbus[pad]; default: @@ -346,8 +346,8 @@ mei_csi_get_pad_format(struct v4l2_subdev *sd, } } -static int mei_csi_init_cfg(struct v4l2_subdev *sd, - struct v4l2_subdev_state *sd_state) +static int mei_csi_init_state(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state) { struct v4l2_mbus_framefmt *mbusformat; struct mei_csi *csi = sd_to_csi(sd); @@ -356,7 +356,7 @@ static int mei_csi_init_cfg(struct v4l2_subdev *sd, mutex_lock(&csi->lock); for (i = 0; i < sd->entity.num_pads; i++) { - mbusformat = v4l2_subdev_get_try_format(sd, sd_state, i); + mbusformat = v4l2_subdev_state_get_format(sd_state, i); *mbusformat = mei_csi_format_mbus_default; } @@ -554,7 +554,6 @@ static const struct v4l2_subdev_video_ops mei_csi_video_ops = { }; static const struct v4l2_subdev_pad_ops mei_csi_pad_ops = { - .init_cfg = mei_csi_init_cfg, .get_fmt = mei_csi_get_fmt, .set_fmt = mei_csi_set_fmt, }; @@ -564,6 +563,10 @@ static const struct v4l2_subdev_ops mei_csi_subdev_ops = { .pad = &mei_csi_pad_ops, }; +static const struct v4l2_subdev_internal_ops mei_csi_internal_ops = { + .init_state = mei_csi_init_state, +}; + static const struct media_entity_operations mei_csi_entity_ops = { .link_validate = v4l2_subdev_link_validate, }; @@ -645,47 +648,66 @@ static int mei_csi_parse_firmware(struct mei_csi *csi) }; struct device *dev = &csi->cldev->dev; struct v4l2_async_connection *asd; - struct fwnode_handle *fwnode; - struct fwnode_handle *ep; + struct fwnode_handle *sink_ep, *source_ep; int ret; - ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(dev), 0, 0, 0); - if (!ep) { - dev_err(dev, "not connected to subdevice\n"); + sink_ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(dev), 0, 0, 0); + if (!sink_ep) { + dev_err(dev, "can't obtain sink endpoint\n"); return -EINVAL; } - ret = v4l2_fwnode_endpoint_parse(ep, &v4l2_ep); + v4l2_async_subdev_nf_init(&csi->notifier, &csi->subdev); + csi->notifier.ops = &mei_csi_notify_ops; + + ret = v4l2_fwnode_endpoint_parse(sink_ep, &v4l2_ep); if (ret) { - dev_err(dev, "could not parse v4l2 endpoint\n"); - fwnode_handle_put(ep); - return -EINVAL; + dev_err(dev, "could not parse v4l2 sink endpoint\n"); + goto out_nf_cleanup; } - fwnode = fwnode_graph_get_remote_endpoint(ep); - fwnode_handle_put(ep); + csi->nr_of_lanes = v4l2_ep.bus.mipi_csi2.num_data_lanes; - v4l2_async_subdev_nf_init(&csi->notifier, &csi->subdev); - csi->notifier.ops = &mei_csi_notify_ops; + source_ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(dev), 1, 0, 0); + if (!source_ep) { + ret = -ENOTCONN; + dev_err(dev, "can't obtain source endpoint\n"); + goto out_nf_cleanup; + } - asd = v4l2_async_nf_add_fwnode(&csi->notifier, fwnode, - struct v4l2_async_connection); - if (IS_ERR(asd)) { - fwnode_handle_put(fwnode); - return PTR_ERR(asd); + ret = v4l2_fwnode_endpoint_parse(source_ep, &v4l2_ep); + fwnode_handle_put(source_ep); + if (ret) { + dev_err(dev, "could not parse v4l2 source endpoint\n"); + goto out_nf_cleanup; } - ret = v4l2_fwnode_endpoint_alloc_parse(fwnode, &v4l2_ep); - fwnode_handle_put(fwnode); - if (ret) - return ret; - csi->nr_of_lanes = v4l2_ep.bus.mipi_csi2.num_data_lanes; + if (csi->nr_of_lanes != v4l2_ep.bus.mipi_csi2.num_data_lanes) { + ret = -EINVAL; + dev_err(dev, + "the number of lanes does not match (%u vs. %u)\n", + csi->nr_of_lanes, v4l2_ep.bus.mipi_csi2.num_data_lanes); + goto out_nf_cleanup; + } + + asd = v4l2_async_nf_add_fwnode_remote(&csi->notifier, sink_ep, + struct v4l2_async_connection); + if (IS_ERR(asd)) { + ret = PTR_ERR(asd); + goto out_nf_cleanup; + } ret = v4l2_async_nf_register(&csi->notifier); if (ret) - v4l2_async_nf_cleanup(&csi->notifier); + goto out_nf_cleanup; + + fwnode_handle_put(sink_ep); - v4l2_fwnode_endpoint_free(&v4l2_ep); + return 0; + +out_nf_cleanup: + v4l2_async_nf_cleanup(&csi->notifier); + fwnode_handle_put(sink_ep); return ret; } @@ -728,6 +750,7 @@ static int mei_csi_probe(struct mei_cl_device *cldev, csi->subdev.dev = &cldev->dev; v4l2_subdev_init(&csi->subdev, &mei_csi_subdev_ops); + csi->subdev.internal_ops = &mei_csi_internal_ops; v4l2_set_subdevdata(&csi->subdev, csi); csi->subdev.flags = V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; |