diff options
Diffstat (limited to 'drivers/media/platform/rcar-vin/rcar-core.c')
| -rw-r--r-- | drivers/media/platform/rcar-vin/rcar-core.c | 1329 |
1 files changed, 0 insertions, 1329 deletions
diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c deleted file mode 100644 index f0719ce24b97..000000000000 --- a/drivers/media/platform/rcar-vin/rcar-core.c +++ /dev/null @@ -1,1329 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Driver for Renesas R-Car VIN - * - * Copyright (C) 2016 Renesas Electronics Corp. - * Copyright (C) 2011-2013 Renesas Solutions Corp. - * Copyright (C) 2013 Cogent Embedded, Inc., <source@cogentembedded.com> - * Copyright (C) 2008 Magnus Damm - * - * Based on the soc-camera rcar_vin driver - */ - -#include <linux/module.h> -#include <linux/of.h> -#include <linux/of_device.h> -#include <linux/of_graph.h> -#include <linux/platform_device.h> -#include <linux/pm_runtime.h> -#include <linux/slab.h> -#include <linux/sys_soc.h> - -#include <media/v4l2-async.h> -#include <media/v4l2-fwnode.h> -#include <media/v4l2-mc.h> - -#include "rcar-vin.h" - -/* - * The companion CSI-2 receiver driver (rcar-csi2) is known - * and we know it has one source pad (pad 0) and four sink - * pads (pad 1-4). So to translate a pad on the remote - * CSI-2 receiver to/from the VIN internal channel number simply - * subtract/add one from the pad/channel number. - */ -#define rvin_group_csi_pad_to_channel(pad) ((pad) - 1) -#define rvin_group_csi_channel_to_pad(channel) ((channel) + 1) - -/* - * Not all VINs are created equal, master VINs control the - * routing for other VIN's. We can figure out which VIN is - * master by looking at a VINs id. - */ -#define rvin_group_id_to_master(vin) ((vin) < 4 ? 0 : 4) - -#define v4l2_dev_to_vin(d) container_of(d, struct rvin_dev, v4l2_dev) - -/* ----------------------------------------------------------------------------- - * Media Controller link notification - */ - -/* group lock should be held when calling this function. */ -static int rvin_group_entity_to_csi_id(struct rvin_group *group, - struct media_entity *entity) -{ - struct v4l2_subdev *sd; - unsigned int i; - - sd = media_entity_to_v4l2_subdev(entity); - - for (i = 0; i < RVIN_CSI_MAX; i++) - if (group->csi[i].subdev == sd) - return i; - - return -ENODEV; -} - -static unsigned int rvin_group_get_mask(struct rvin_dev *vin, - enum rvin_csi_id csi_id, - unsigned char channel) -{ - const struct rvin_group_route *route; - unsigned int mask = 0; - - for (route = vin->info->routes; route->mask; route++) { - if (route->vin == vin->id && - route->csi == csi_id && - route->channel == channel) { - vin_dbg(vin, - "Adding route: vin: %d csi: %d channel: %d\n", - route->vin, route->csi, route->channel); - mask |= route->mask; - } - } - - return mask; -} - -/* - * Link setup for the links between a VIN and a CSI-2 receiver is a bit - * complex. The reason for this is that the register controlling routing - * is not present in each VIN instance. There are special VINs which - * control routing for themselves and other VINs. There are not many - * different possible links combinations that can be enabled at the same - * time, therefor all already enabled links which are controlled by a - * master VIN need to be taken into account when making the decision - * if a new link can be enabled or not. - * - * 1. Find out which VIN the link the user tries to enable is connected to. - * 2. Lookup which master VIN controls the links for this VIN. - * 3. Start with a bitmask with all bits set. - * 4. For each previously enabled link from the master VIN bitwise AND its - * route mask (see documentation for mask in struct rvin_group_route) - * with the bitmask. - * 5. Bitwise AND the mask for the link the user tries to enable to the bitmask. - * 6. If the bitmask is not empty at this point the new link can be enabled - * while keeping all previous links enabled. Update the CHSEL value of the - * master VIN and inform the user that the link could be enabled. - * - * Please note that no link can be enabled if any VIN in the group is - * currently open. - */ -static int rvin_group_link_notify(struct media_link *link, u32 flags, - unsigned int notification) -{ - struct rvin_group *group = container_of(link->graph_obj.mdev, - struct rvin_group, mdev); - unsigned int master_id, channel, mask_new, i; - unsigned int mask = ~0; - struct media_entity *entity; - struct video_device *vdev; - struct media_pad *csi_pad; - struct rvin_dev *vin = NULL; - int csi_id, ret; - - ret = v4l2_pipeline_link_notify(link, flags, notification); - if (ret) - return ret; - - /* Only care about link enablement for VIN nodes. */ - if (!(flags & MEDIA_LNK_FL_ENABLED) || - !is_media_entity_v4l2_video_device(link->sink->entity)) - return 0; - - /* If any entity is in use don't allow link changes. */ - media_device_for_each_entity(entity, &group->mdev) - if (entity->use_count) - return -EBUSY; - - mutex_lock(&group->lock); - - /* Find the master VIN that controls the routes. */ - vdev = media_entity_to_video_device(link->sink->entity); - vin = container_of(vdev, struct rvin_dev, vdev); - master_id = rvin_group_id_to_master(vin->id); - - if (WARN_ON(!group->vin[master_id])) { - ret = -ENODEV; - goto out; - } - - /* Build a mask for already enabled links. */ - for (i = master_id; i < master_id + 4; i++) { - if (!group->vin[i]) - continue; - - /* Get remote CSI-2, if any. */ - csi_pad = media_entity_remote_pad( - &group->vin[i]->vdev.entity.pads[0]); - if (!csi_pad) - continue; - - csi_id = rvin_group_entity_to_csi_id(group, csi_pad->entity); - channel = rvin_group_csi_pad_to_channel(csi_pad->index); - - mask &= rvin_group_get_mask(group->vin[i], csi_id, channel); - } - - /* Add the new link to the existing mask and check if it works. */ - csi_id = rvin_group_entity_to_csi_id(group, link->source->entity); - - if (csi_id == -ENODEV) { - struct v4l2_subdev *sd; - - /* - * Make sure the source entity subdevice is registered as - * a parallel input of one of the enabled VINs if it is not - * one of the CSI-2 subdevices. - * - * No hardware configuration required for parallel inputs, - * we can return here. - */ - sd = media_entity_to_v4l2_subdev(link->source->entity); - for (i = 0; i < RCAR_VIN_NUM; i++) { - if (group->vin[i] && group->vin[i]->parallel && - group->vin[i]->parallel->subdev == sd) { - group->vin[i]->is_csi = false; - ret = 0; - goto out; - } - } - - vin_err(vin, "Subdevice %s not registered to any VIN\n", - link->source->entity->name); - ret = -ENODEV; - goto out; - } - - channel = rvin_group_csi_pad_to_channel(link->source->index); - mask_new = mask & rvin_group_get_mask(vin, csi_id, channel); - vin_dbg(vin, "Try link change mask: 0x%x new: 0x%x\n", mask, mask_new); - - if (!mask_new) { - ret = -EMLINK; - goto out; - } - - /* New valid CHSEL found, set the new value. */ - ret = rvin_set_channel_routing(group->vin[master_id], __ffs(mask_new)); - if (ret) - goto out; - - vin->is_csi = true; - -out: - mutex_unlock(&group->lock); - - return ret; -} - -static const struct media_device_ops rvin_media_ops = { - .link_notify = rvin_group_link_notify, -}; - -/* ----------------------------------------------------------------------------- - * Gen3 CSI2 Group Allocator - */ - -/* FIXME: This should if we find a system that supports more - * than one group for the whole system be replaced with a linked - * list of groups. And eventually all of this should be replaced - * with a global device allocator API. - * - * But for now this works as on all supported systems there will - * be only one group for all instances. - */ - -static DEFINE_MUTEX(rvin_group_lock); -static struct rvin_group *rvin_group_data; - -static void rvin_group_cleanup(struct rvin_group *group) -{ - media_device_unregister(&group->mdev); - media_device_cleanup(&group->mdev); - mutex_destroy(&group->lock); -} - -static int rvin_group_init(struct rvin_group *group, struct rvin_dev *vin) -{ - struct media_device *mdev = &group->mdev; - const struct of_device_id *match; - struct device_node *np; - int ret; - - mutex_init(&group->lock); - - /* Count number of VINs in the system */ - group->count = 0; - for_each_matching_node(np, vin->dev->driver->of_match_table) - if (of_device_is_available(np)) - group->count++; - - vin_dbg(vin, "found %u enabled VIN's in DT", group->count); - - mdev->dev = vin->dev; - mdev->ops = &rvin_media_ops; - - match = of_match_node(vin->dev->driver->of_match_table, - vin->dev->of_node); - - strscpy(mdev->driver_name, KBUILD_MODNAME, sizeof(mdev->driver_name)); - strscpy(mdev->model, match->compatible, sizeof(mdev->model)); - snprintf(mdev->bus_info, sizeof(mdev->bus_info), "platform:%s", - dev_name(mdev->dev)); - - media_device_init(mdev); - - ret = media_device_register(&group->mdev); - if (ret) - rvin_group_cleanup(group); - - return ret; -} - -static void rvin_group_release(struct kref *kref) -{ - struct rvin_group *group = - container_of(kref, struct rvin_group, refcount); - - mutex_lock(&rvin_group_lock); - - rvin_group_data = NULL; - - rvin_group_cleanup(group); - - kfree(group); - - mutex_unlock(&rvin_group_lock); -} - -static int rvin_group_get(struct rvin_dev *vin) -{ - struct rvin_group *group; - u32 id; - int ret; - - /* Make sure VIN id is present and sane */ - ret = of_property_read_u32(vin->dev->of_node, "renesas,id", &id); - if (ret) { - vin_err(vin, "%pOF: No renesas,id property found\n", - vin->dev->of_node); - return -EINVAL; - } - - if (id >= RCAR_VIN_NUM) { - vin_err(vin, "%pOF: Invalid renesas,id '%u'\n", - vin->dev->of_node, id); - return -EINVAL; - } - - /* Join or create a VIN group */ - mutex_lock(&rvin_group_lock); - if (rvin_group_data) { - group = rvin_group_data; - kref_get(&group->refcount); - } else { - group = kzalloc(sizeof(*group), GFP_KERNEL); - if (!group) { - ret = -ENOMEM; - goto err_group; - } - - ret = rvin_group_init(group, vin); - if (ret) { - kfree(group); - vin_err(vin, "Failed to initialize group\n"); - goto err_group; - } - - kref_init(&group->refcount); - - rvin_group_data = group; - } - mutex_unlock(&rvin_group_lock); - - /* Add VIN to group */ - mutex_lock(&group->lock); - - if (group->vin[id]) { - vin_err(vin, "Duplicate renesas,id property value %u\n", id); - mutex_unlock(&group->lock); - kref_put(&group->refcount, rvin_group_release); - return -EINVAL; - } - - group->vin[id] = vin; - - vin->id = id; - vin->group = group; - vin->v4l2_dev.mdev = &group->mdev; - - mutex_unlock(&group->lock); - - return 0; -err_group: - mutex_unlock(&rvin_group_lock); - return ret; -} - -static void rvin_group_put(struct rvin_dev *vin) -{ - struct rvin_group *group = vin->group; - - mutex_lock(&group->lock); - - vin->group = NULL; - vin->v4l2_dev.mdev = NULL; - - if (WARN_ON(group->vin[vin->id] != vin)) - goto out; - - group->vin[vin->id] = NULL; -out: - mutex_unlock(&group->lock); - - kref_put(&group->refcount, rvin_group_release); -} - -/* ----------------------------------------------------------------------------- - * 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; - - /* Add the controls */ - ret = v4l2_ctrl_handler_init(&vin->ctrl_handler, 16); - if (ret < 0) - return ret; - - ret = v4l2_ctrl_add_handler(&vin->ctrl_handler, subdev->ctrl_handler, - NULL, true); - if (ret < 0) { - v4l2_ctrl_handler_free(&vin->ctrl_handler); - return ret; - } - - vin->vdev.ctrl_handler = &vin->ctrl_handler; - - vin->parallel->subdev = subdev; - - return 0; -} - -static void rvin_parallel_subdevice_detach(struct rvin_dev *vin) -{ - rvin_v4l2_unregister(vin); - vin->parallel->subdev = NULL; - - if (!vin->info->use_mc) { - v4l2_ctrl_handler_free(&vin->ctrl_handler); - vin->vdev.ctrl_handler = NULL; - } -} - -static int rvin_parallel_notify_complete(struct v4l2_async_notifier *notifier) -{ - struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev); - struct media_entity *source; - struct media_entity *sink; - int ret; - - ret = v4l2_device_register_subdev_nodes(&vin->v4l2_dev); - if (ret < 0) { - vin_err(vin, "Failed to register subdev nodes\n"); - return ret; - } - - if (!video_is_registered(&vin->vdev)) { - ret = rvin_v4l2_register(vin); - if (ret < 0) - return ret; - } - - if (!vin->info->use_mc) - return 0; - - /* If we're running with media-controller, link the subdevs. */ - source = &vin->parallel->subdev->entity; - sink = &vin->vdev.entity; - - ret = media_create_pad_link(source, vin->parallel->source_pad, - sink, vin->parallel->sink_pad, 0); - if (ret) - vin_err(vin, "Error adding link from %s to %s: %d\n", - source->name, sink->name, ret); - - return ret; -} - -static void rvin_parallel_notify_unbind(struct v4l2_async_notifier *notifier, - struct v4l2_subdev *subdev, - struct v4l2_async_subdev *asd) -{ - struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev); - - vin_dbg(vin, "unbind parallel subdev %s\n", subdev->name); - - mutex_lock(&vin->lock); - rvin_parallel_subdevice_detach(vin); - mutex_unlock(&vin->lock); -} - -static int rvin_parallel_notify_bound(struct v4l2_async_notifier *notifier, - struct v4l2_subdev *subdev, - struct v4l2_async_subdev *asd) -{ - struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev); - int ret; - - mutex_lock(&vin->lock); - ret = rvin_parallel_subdevice_attach(vin, subdev); - mutex_unlock(&vin->lock); - if (ret) - return ret; - - v4l2_set_subdev_hostdata(subdev, vin); - - vin_dbg(vin, "bound subdev %s source pad: %u sink pad: %u\n", - subdev->name, vin->parallel->source_pad, - vin->parallel->sink_pad); - - return 0; -} - -static const struct v4l2_async_notifier_operations rvin_parallel_notify_ops = { - .bound = rvin_parallel_notify_bound, - .unbind = rvin_parallel_notify_unbind, - .complete = rvin_parallel_notify_complete, -}; - -static int rvin_parallel_parse_v4l2(struct device *dev, - struct v4l2_fwnode_endpoint *vep, - struct v4l2_async_subdev *asd) -{ - struct rvin_dev *vin = dev_get_drvdata(dev); - struct rvin_parallel_entity *rvpe = - container_of(asd, struct rvin_parallel_entity, asd); - - if (vep->base.port || vep->base.id) - return -ENOTCONN; - - vin->parallel = rvpe; - vin->parallel->mbus_type = vep->bus_type; - - switch (vin->parallel->mbus_type) { - case V4L2_MBUS_PARALLEL: - vin_dbg(vin, "Found PARALLEL media bus\n"); - vin->parallel->mbus_flags = vep->bus.parallel.flags; - break; - case V4L2_MBUS_BT656: - vin_dbg(vin, "Found BT656 media bus\n"); - vin->parallel->mbus_flags = 0; - break; - default: - vin_err(vin, "Unknown media bus type\n"); - return -EINVAL; - } - - return 0; -} - -static int rvin_parallel_init(struct rvin_dev *vin) -{ - int ret; - - v4l2_async_notifier_init(&vin->notifier); - - ret = v4l2_async_notifier_parse_fwnode_endpoints_by_port( - vin->dev, &vin->notifier, sizeof(struct rvin_parallel_entity), - 0, rvin_parallel_parse_v4l2); - if (ret) - return ret; - - /* If using mc, it's fine not to have any input registered. */ - if (!vin->parallel) - return vin->info->use_mc ? 0 : -ENODEV; - - vin_dbg(vin, "Found parallel subdevice %pOF\n", - to_of_node(vin->parallel->asd.match.fwnode)); - - vin->notifier.ops = &rvin_parallel_notify_ops; - ret = v4l2_async_notifier_register(&vin->v4l2_dev, &vin->notifier); - if (ret < 0) { - vin_err(vin, "Notifier registration failed\n"); - v4l2_async_notifier_cleanup(&vin->group->notifier); - return ret; - } - - return 0; -} - -/* ----------------------------------------------------------------------------- - * Group async notifier - */ - -static int rvin_group_notify_complete(struct v4l2_async_notifier *notifier) -{ - struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev); - const struct rvin_group_route *route; - unsigned int i; - int ret; - - ret = v4l2_device_register_subdev_nodes(&vin->v4l2_dev); - if (ret) { - vin_err(vin, "Failed to register subdev nodes\n"); - return ret; - } - - /* Register all video nodes for the group. */ - for (i = 0; i < RCAR_VIN_NUM; i++) { - if (vin->group->vin[i] && - !video_is_registered(&vin->group->vin[i]->vdev)) { - ret = rvin_v4l2_register(vin->group->vin[i]); - if (ret) - return ret; - } - } - - /* Create all media device links between VINs and CSI-2's. */ - mutex_lock(&vin->group->lock); - for (route = vin->info->routes; route->mask; route++) { - struct media_pad *source_pad, *sink_pad; - struct media_entity *source, *sink; - unsigned int source_idx; - - /* Check that VIN is part of the group. */ - if (!vin->group->vin[route->vin]) - continue; - - /* Check that VIN' master is part of the group. */ - if (!vin->group->vin[rvin_group_id_to_master(route->vin)]) - continue; - - /* Check that CSI-2 is part of the group. */ - if (!vin->group->csi[route->csi].subdev) - continue; - - source = &vin->group->csi[route->csi].subdev->entity; - source_idx = rvin_group_csi_channel_to_pad(route->channel); - source_pad = &source->pads[source_idx]; - - sink = &vin->group->vin[route->vin]->vdev.entity; - sink_pad = &sink->pads[0]; - - /* Skip if link already exists. */ - if (media_entity_find_link(source_pad, sink_pad)) - continue; - - ret = media_create_pad_link(source, source_idx, sink, 0, 0); - if (ret) { - vin_err(vin, "Error adding link from %s to %s\n", - source->name, sink->name); - break; - } - } - mutex_unlock(&vin->group->lock); - - return ret; -} - -static void rvin_group_notify_unbind(struct v4l2_async_notifier *notifier, - struct v4l2_subdev *subdev, - struct v4l2_async_subdev *asd) -{ - struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev); - unsigned int i; - - for (i = 0; i < RCAR_VIN_NUM; i++) - if (vin->group->vin[i]) - rvin_v4l2_unregister(vin->group->vin[i]); - - mutex_lock(&vin->group->lock); - - for (i = 0; i < RVIN_CSI_MAX; i++) { - if (vin->group->csi[i].fwnode != asd->match.fwnode) - continue; - vin->group->csi[i].subdev = NULL; - vin_dbg(vin, "Unbind CSI-2 %s from slot %u\n", subdev->name, i); - break; - } - - mutex_unlock(&vin->group->lock); -} - -static int rvin_group_notify_bound(struct v4l2_async_notifier *notifier, - struct v4l2_subdev *subdev, - struct v4l2_async_subdev *asd) -{ - struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev); - unsigned int i; - - mutex_lock(&vin->group->lock); - - for (i = 0; i < RVIN_CSI_MAX; i++) { - if (vin->group->csi[i].fwnode != asd->match.fwnode) - continue; - vin->group->csi[i].subdev = subdev; - vin_dbg(vin, "Bound CSI-2 %s to slot %u\n", subdev->name, i); - break; - } - - mutex_unlock(&vin->group->lock); - - return 0; -} - -static const struct v4l2_async_notifier_operations rvin_group_notify_ops = { - .bound = rvin_group_notify_bound, - .unbind = rvin_group_notify_unbind, - .complete = rvin_group_notify_complete, -}; - -static int rvin_mc_parse_of_endpoint(struct device *dev, - struct v4l2_fwnode_endpoint *vep, - struct v4l2_async_subdev *asd) -{ - struct rvin_dev *vin = dev_get_drvdata(dev); - - if (vep->base.port != 1 || vep->base.id >= RVIN_CSI_MAX) - return -EINVAL; - - if (!of_device_is_available(to_of_node(asd->match.fwnode))) { - vin_dbg(vin, "OF device %pOF disabled, ignoring\n", - to_of_node(asd->match.fwnode)); - return -ENOTCONN; - } - - if (vin->group->csi[vep->base.id].fwnode) { - vin_dbg(vin, "OF device %pOF already handled\n", - to_of_node(asd->match.fwnode)); - return -ENOTCONN; - } - - vin->group->csi[vep->base.id].fwnode = asd->match.fwnode; - - vin_dbg(vin, "Add group OF device %pOF to slot %u\n", - to_of_node(asd->match.fwnode), vep->base.id); - - return 0; -} - -static int rvin_mc_parse_of_graph(struct rvin_dev *vin) -{ - unsigned int count = 0; - unsigned int i; - int ret; - - mutex_lock(&vin->group->lock); - - /* If not all VIN's are registered don't register the notifier. */ - for (i = 0; i < RCAR_VIN_NUM; i++) - if (vin->group->vin[i]) - count++; - - if (vin->group->count != count) { - mutex_unlock(&vin->group->lock); - return 0; - } - - v4l2_async_notifier_init(&vin->group->notifier); - - /* - * Have all VIN's look for CSI-2 subdevices. Some subdevices will - * overlap but the parser function can handle it, so each subdevice - * will only be registered once with the group notifier. - */ - for (i = 0; i < RCAR_VIN_NUM; i++) { - if (!vin->group->vin[i]) - continue; - - ret = v4l2_async_notifier_parse_fwnode_endpoints_by_port( - vin->group->vin[i]->dev, &vin->group->notifier, - sizeof(struct v4l2_async_subdev), 1, - rvin_mc_parse_of_endpoint); - if (ret) { - mutex_unlock(&vin->group->lock); - return ret; - } - } - - mutex_unlock(&vin->group->lock); - - if (list_empty(&vin->group->notifier.asd_list)) - return 0; - - vin->group->notifier.ops = &rvin_group_notify_ops; - ret = v4l2_async_notifier_register(&vin->v4l2_dev, - &vin->group->notifier); - if (ret < 0) { - vin_err(vin, "Notifier registration failed\n"); - v4l2_async_notifier_cleanup(&vin->group->notifier); - return ret; - } - - return 0; -} - -static int rvin_mc_init(struct rvin_dev *vin) -{ - int ret; - - vin->pad.flags = MEDIA_PAD_FL_SINK; - ret = media_entity_pads_init(&vin->vdev.entity, 1, &vin->pad); - if (ret) - return ret; - - ret = rvin_group_get(vin); - if (ret) - return ret; - - ret = rvin_mc_parse_of_graph(vin); - if (ret) - rvin_group_put(vin); - - return ret; -} - -/* ----------------------------------------------------------------------------- - * Platform Device Driver - */ - -static const struct rvin_info rcar_info_h1 = { - .model = RCAR_H1, - .use_mc = false, - .max_width = 2048, - .max_height = 2048, -}; - -static const struct rvin_info rcar_info_m1 = { - .model = RCAR_M1, - .use_mc = false, - .max_width = 2048, - .max_height = 2048, -}; - -static const struct rvin_info rcar_info_gen2 = { - .model = RCAR_GEN2, - .use_mc = false, - .max_width = 2048, - .max_height = 2048, -}; - -static const struct rvin_group_route rcar_info_r8a7795_routes[] = { - { .csi = RVIN_CSI40, .channel = 0, .vin = 0, .mask = BIT(0) | BIT(3) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 0, .mask = BIT(1) | BIT(4) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 0, .mask = BIT(2) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 1, .mask = BIT(0) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 1, .mask = BIT(1) | BIT(3) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 1, .mask = BIT(2) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 1, .mask = BIT(4) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 2, .mask = BIT(0) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 2, .mask = BIT(1) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 2, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 2, .vin = 2, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 2, .vin = 2, .mask = BIT(4) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 3, .mask = BIT(0) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 3, .mask = BIT(1) | BIT(2) }, - { .csi = RVIN_CSI40, .channel = 3, .vin = 3, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 3, .vin = 3, .mask = BIT(4) }, - { .csi = RVIN_CSI41, .channel = 0, .vin = 4, .mask = BIT(0) | BIT(3) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 4, .mask = BIT(1) | BIT(4) }, - { .csi = RVIN_CSI41, .channel = 1, .vin = 4, .mask = BIT(2) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 5, .mask = BIT(0) }, - { .csi = RVIN_CSI41, .channel = 1, .vin = 5, .mask = BIT(1) | BIT(3) }, - { .csi = RVIN_CSI41, .channel = 0, .vin = 5, .mask = BIT(2) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 5, .mask = BIT(4) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 6, .mask = BIT(0) }, - { .csi = RVIN_CSI41, .channel = 0, .vin = 6, .mask = BIT(1) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 6, .mask = BIT(2) }, - { .csi = RVIN_CSI41, .channel = 2, .vin = 6, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 2, .vin = 6, .mask = BIT(4) }, - { .csi = RVIN_CSI41, .channel = 1, .vin = 7, .mask = BIT(0) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 7, .mask = BIT(1) | BIT(2) }, - { .csi = RVIN_CSI41, .channel = 3, .vin = 7, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 3, .vin = 7, .mask = BIT(4) }, - { /* Sentinel */ } -}; - -static const struct rvin_info rcar_info_r8a7795 = { - .model = RCAR_GEN3, - .use_mc = true, - .max_width = 4096, - .max_height = 4096, - .routes = rcar_info_r8a7795_routes, -}; - -static const struct rvin_group_route rcar_info_r8a7795es1_routes[] = { - { .csi = RVIN_CSI40, .channel = 0, .vin = 0, .mask = BIT(0) | BIT(3) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 0, .mask = BIT(1) | BIT(4) }, - { .csi = RVIN_CSI21, .channel = 0, .vin = 0, .mask = BIT(2) | BIT(5) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 1, .mask = BIT(0) }, - { .csi = RVIN_CSI21, .channel = 0, .vin = 1, .mask = BIT(1) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 1, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 1, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 1, .mask = BIT(4) }, - { .csi = RVIN_CSI21, .channel = 1, .vin = 1, .mask = BIT(5) }, - { .csi = RVIN_CSI21, .channel = 0, .vin = 2, .mask = BIT(0) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 2, .mask = BIT(1) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 2, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 2, .vin = 2, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 2, .vin = 2, .mask = BIT(4) }, - { .csi = RVIN_CSI21, .channel = 2, .vin = 2, .mask = BIT(5) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 3, .mask = BIT(0) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 3, .mask = BIT(1) }, - { .csi = RVIN_CSI21, .channel = 1, .vin = 3, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 3, .vin = 3, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 3, .vin = 3, .mask = BIT(4) }, - { .csi = RVIN_CSI21, .channel = 3, .vin = 3, .mask = BIT(5) }, - { .csi = RVIN_CSI41, .channel = 0, .vin = 4, .mask = BIT(0) | BIT(3) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 4, .mask = BIT(1) | BIT(4) }, - { .csi = RVIN_CSI21, .channel = 0, .vin = 4, .mask = BIT(2) | BIT(5) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 5, .mask = BIT(0) }, - { .csi = RVIN_CSI21, .channel = 0, .vin = 5, .mask = BIT(1) }, - { .csi = RVIN_CSI41, .channel = 0, .vin = 5, .mask = BIT(2) }, - { .csi = RVIN_CSI41, .channel = 1, .vin = 5, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 5, .mask = BIT(4) }, - { .csi = RVIN_CSI21, .channel = 1, .vin = 5, .mask = BIT(5) }, - { .csi = RVIN_CSI21, .channel = 0, .vin = 6, .mask = BIT(0) }, - { .csi = RVIN_CSI41, .channel = 0, .vin = 6, .mask = BIT(1) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 6, .mask = BIT(2) }, - { .csi = RVIN_CSI41, .channel = 2, .vin = 6, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 2, .vin = 6, .mask = BIT(4) }, - { .csi = RVIN_CSI21, .channel = 2, .vin = 6, .mask = BIT(5) }, - { .csi = RVIN_CSI41, .channel = 1, .vin = 7, .mask = BIT(0) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 7, .mask = BIT(1) }, - { .csi = RVIN_CSI21, .channel = 1, .vin = 7, .mask = BIT(2) }, - { .csi = RVIN_CSI41, .channel = 3, .vin = 7, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 3, .vin = 7, .mask = BIT(4) }, - { .csi = RVIN_CSI21, .channel = 3, .vin = 7, .mask = BIT(5) }, - { /* Sentinel */ } -}; - -static const struct rvin_info rcar_info_r8a7795es1 = { - .model = RCAR_GEN3, - .use_mc = true, - .max_width = 4096, - .max_height = 4096, - .routes = rcar_info_r8a7795es1_routes, -}; - -static const struct rvin_group_route rcar_info_r8a7796_routes[] = { - { .csi = RVIN_CSI40, .channel = 0, .vin = 0, .mask = BIT(0) | BIT(3) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 0, .mask = BIT(1) | BIT(4) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 1, .mask = BIT(0) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 1, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 1, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 1, .mask = BIT(4) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 2, .mask = BIT(1) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 2, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 2, .vin = 2, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 2, .vin = 2, .mask = BIT(4) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 3, .mask = BIT(0) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 3, .mask = BIT(1) }, - { .csi = RVIN_CSI40, .channel = 3, .vin = 3, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 3, .vin = 3, .mask = BIT(4) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 4, .mask = BIT(0) | BIT(3) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 4, .mask = BIT(1) | BIT(4) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 5, .mask = BIT(0) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 5, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 5, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 5, .mask = BIT(4) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 6, .mask = BIT(1) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 6, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 2, .vin = 6, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 2, .vin = 6, .mask = BIT(4) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 7, .mask = BIT(0) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 7, .mask = BIT(1) }, - { .csi = RVIN_CSI40, .channel = 3, .vin = 7, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 3, .vin = 7, .mask = BIT(4) }, - { /* Sentinel */ } -}; - -static const struct rvin_info rcar_info_r8a7796 = { - .model = RCAR_GEN3, - .use_mc = true, - .max_width = 4096, - .max_height = 4096, - .routes = rcar_info_r8a7796_routes, -}; - -static const struct rvin_group_route rcar_info_r8a77965_routes[] = { - { .csi = RVIN_CSI40, .channel = 0, .vin = 0, .mask = BIT(0) | BIT(3) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 0, .mask = BIT(1) | BIT(4) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 0, .mask = BIT(2) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 1, .mask = BIT(0) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 1, .mask = BIT(1) | BIT(3) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 1, .mask = BIT(2) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 1, .mask = BIT(4) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 2, .mask = BIT(0) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 2, .mask = BIT(1) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 2, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 2, .vin = 2, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 2, .vin = 2, .mask = BIT(4) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 3, .mask = BIT(0) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 3, .mask = BIT(1) | BIT(2) }, - { .csi = RVIN_CSI40, .channel = 3, .vin = 3, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 3, .vin = 3, .mask = BIT(4) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 4, .mask = BIT(0) | BIT(3) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 4, .mask = BIT(1) | BIT(4) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 4, .mask = BIT(2) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 5, .mask = BIT(0) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 5, .mask = BIT(1) | BIT(3) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 5, .mask = BIT(2) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 5, .mask = BIT(4) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 6, .mask = BIT(0) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 6, .mask = BIT(1) }, - { .csi = RVIN_CSI20, .channel = 0, .vin = 6, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 2, .vin = 6, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 2, .vin = 6, .mask = BIT(4) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 7, .mask = BIT(0) }, - { .csi = RVIN_CSI20, .channel = 1, .vin = 7, .mask = BIT(1) | BIT(2) }, - { .csi = RVIN_CSI40, .channel = 3, .vin = 7, .mask = BIT(3) }, - { .csi = RVIN_CSI20, .channel = 3, .vin = 7, .mask = BIT(4) }, - { /* Sentinel */ } -}; - -static const struct rvin_info rcar_info_r8a77965 = { - .model = RCAR_GEN3, - .use_mc = true, - .max_width = 4096, - .max_height = 4096, - .routes = rcar_info_r8a77965_routes, -}; - -static const struct rvin_group_route rcar_info_r8a77970_routes[] = { - { .csi = RVIN_CSI40, .channel = 0, .vin = 0, .mask = BIT(0) | BIT(3) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 1, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 1, .mask = BIT(3) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 2, .mask = BIT(1) }, - { .csi = RVIN_CSI40, .channel = 2, .vin = 2, .mask = BIT(3) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 3, .mask = BIT(0) }, - { .csi = RVIN_CSI40, .channel = 3, .vin = 3, .mask = BIT(3) }, - { /* Sentinel */ } -}; - -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, -}; - -static const struct rvin_group_route rcar_info_r8a77980_routes[] = { - { .csi = RVIN_CSI40, .channel = 0, .vin = 0, .mask = BIT(0) | BIT(3) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 0, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 1, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 1, .mask = BIT(1) | BIT(3) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 2, .mask = BIT(1) }, - { .csi = RVIN_CSI40, .channel = 2, .vin = 2, .mask = BIT(3) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 3, .mask = BIT(0) }, - { .csi = RVIN_CSI40, .channel = 3, .vin = 3, .mask = BIT(3) }, - { .csi = RVIN_CSI41, .channel = 0, .vin = 4, .mask = BIT(0) | BIT(3) }, - { .csi = RVIN_CSI41, .channel = 1, .vin = 4, .mask = BIT(2) }, - { .csi = RVIN_CSI41, .channel = 0, .vin = 5, .mask = BIT(2) }, - { .csi = RVIN_CSI41, .channel = 1, .vin = 5, .mask = BIT(1) | BIT(3) }, - { .csi = RVIN_CSI41, .channel = 0, .vin = 6, .mask = BIT(1) }, - { .csi = RVIN_CSI41, .channel = 2, .vin = 6, .mask = BIT(3) }, - { .csi = RVIN_CSI41, .channel = 1, .vin = 7, .mask = BIT(0) }, - { .csi = RVIN_CSI41, .channel = 3, .vin = 7, .mask = BIT(3) }, - { /* Sentinel */ } -}; - -static const struct rvin_info rcar_info_r8a77980 = { - .model = RCAR_GEN3, - .use_mc = true, - .max_width = 4096, - .max_height = 4096, - .routes = rcar_info_r8a77980_routes, -}; - -static const struct rvin_group_route rcar_info_r8a77990_routes[] = { - { .csi = RVIN_CSI40, .channel = 0, .vin = 4, .mask = BIT(0) | BIT(3) }, - { .csi = RVIN_CSI40, .channel = 0, .vin = 5, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 4, .mask = BIT(2) }, - { .csi = RVIN_CSI40, .channel = 1, .vin = 5, .mask = BIT(1) | BIT(3) }, - { /* Sentinel */ } -}; - -static const struct rvin_info rcar_info_r8a77990 = { - .model = RCAR_GEN3, - .use_mc = true, - .max_width = 4096, - .max_height = 4096, - .routes = rcar_info_r8a77990_routes, -}; - -static const struct rvin_group_route rcar_info_r8a77995_routes[] = { - { /* Sentinel */ } -}; - -static const struct rvin_info rcar_info_r8a77995 = { - .model = RCAR_GEN3, - .use_mc = true, - .max_width = 4096, - .max_height = 4096, - .routes = rcar_info_r8a77995_routes, -}; - -static const struct of_device_id rvin_of_id_table[] = { - { - .compatible = "renesas,vin-r8a7778", - .data = &rcar_info_m1, - }, - { - .compatible = "renesas,vin-r8a7779", - .data = &rcar_info_h1, - }, - { - .compatible = "renesas,vin-r8a7790", - .data = &rcar_info_gen2, - }, - { - .compatible = "renesas,vin-r8a7791", - .data = &rcar_info_gen2, - }, - { - .compatible = "renesas,vin-r8a7793", - .data = &rcar_info_gen2, - }, - { - .compatible = "renesas,vin-r8a7794", - .data = &rcar_info_gen2, - }, - { - .compatible = "renesas,rcar-gen2-vin", - .data = &rcar_info_gen2, - }, - { - .compatible = "renesas,vin-r8a7795", - .data = &rcar_info_r8a7795, - }, - { - .compatible = "renesas,vin-r8a7796", - .data = &rcar_info_r8a7796, - }, - { - .compatible = "renesas,vin-r8a77965", - .data = &rcar_info_r8a77965, - }, - { - .compatible = "renesas,vin-r8a77970", - .data = &rcar_info_r8a77970, - }, - { - .compatible = "renesas,vin-r8a77980", - .data = &rcar_info_r8a77980, - }, - { - .compatible = "renesas,vin-r8a77990", - .data = &rcar_info_r8a77990, - }, - { - .compatible = "renesas,vin-r8a77995", - .data = &rcar_info_r8a77995, - }, - { /* Sentinel */ }, -}; -MODULE_DEVICE_TABLE(of, rvin_of_id_table); - -static const struct soc_device_attribute r8a7795es1[] = { - { - .soc_id = "r8a7795", .revision = "ES1.*", - .data = &rcar_info_r8a7795es1, - }, - { /* Sentinel */ } -}; - -static int rcar_vin_probe(struct platform_device *pdev) -{ - const struct soc_device_attribute *attr; - struct rvin_dev *vin; - struct resource *mem; - int irq, ret; - - vin = devm_kzalloc(&pdev->dev, sizeof(*vin), GFP_KERNEL); - if (!vin) - return -ENOMEM; - - vin->dev = &pdev->dev; - vin->info = of_device_get_match_data(&pdev->dev); - - /* - * Special care is needed on r8a7795 ES1.x since it - * uses different routing than r8a7795 ES2.0. - */ - attr = soc_device_match(r8a7795es1); - if (attr) - vin->info = attr->data; - - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (mem == NULL) - return -EINVAL; - - vin->base = devm_ioremap_resource(vin->dev, mem); - if (IS_ERR(vin->base)) - return PTR_ERR(vin->base); - - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return irq; - - ret = rvin_dma_register(vin, irq); - if (ret) - return ret; - - platform_set_drvdata(pdev, vin); - - if (vin->info->use_mc) { - ret = rvin_mc_init(vin); - if (ret) - goto error_dma_unregister; - } - - ret = rvin_parallel_init(vin); - if (ret) - goto error_group_unregister; - - pm_suspend_ignore_children(&pdev->dev, true); - pm_runtime_enable(&pdev->dev); - - return 0; - -error_group_unregister: - if (vin->info->use_mc) { - mutex_lock(&vin->group->lock); - if (&vin->v4l2_dev == vin->group->notifier.v4l2_dev) { - v4l2_async_notifier_unregister(&vin->group->notifier); - v4l2_async_notifier_cleanup(&vin->group->notifier); - } - mutex_unlock(&vin->group->lock); - rvin_group_put(vin); - } - -error_dma_unregister: - rvin_dma_unregister(vin); - - return ret; -} - -static int rcar_vin_remove(struct platform_device *pdev) -{ - struct rvin_dev *vin = platform_get_drvdata(pdev); - - pm_runtime_disable(&pdev->dev); - - rvin_v4l2_unregister(vin); - - v4l2_async_notifier_unregister(&vin->notifier); - v4l2_async_notifier_cleanup(&vin->notifier); - - if (vin->info->use_mc) { - mutex_lock(&vin->group->lock); - if (&vin->v4l2_dev == vin->group->notifier.v4l2_dev) { - v4l2_async_notifier_unregister(&vin->group->notifier); - v4l2_async_notifier_cleanup(&vin->group->notifier); - } - mutex_unlock(&vin->group->lock); - rvin_group_put(vin); - } else { - v4l2_ctrl_handler_free(&vin->ctrl_handler); - } - - rvin_dma_unregister(vin); - - return 0; -} - -static struct platform_driver rcar_vin_driver = { - .driver = { - .name = "rcar-vin", - .of_match_table = rvin_of_id_table, - }, - .probe = rcar_vin_probe, - .remove = rcar_vin_remove, -}; - -module_platform_driver(rcar_vin_driver); - -MODULE_AUTHOR("Niklas Söderlund <niklas.soderlund@ragnatech.se>"); -MODULE_DESCRIPTION("Renesas R-Car VIN camera host driver"); -MODULE_LICENSE("GPL"); |