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linux/drivers/media/platform/rcar-vin/rcar-core.c
Laurent Pinchart b01edcbd40 media: v4l2-async: Improve v4l2_async_notifier_add_*_subdev() API 
The functions that add an async subdev to an async subdev notifier take
as an argument the size of the container structure they need to
allocate. This is error prone, as passing an invalid size will not be
caught by the compiler. Wrap those functions in macros that take a
container type instead of a size, and cast the returned pointer to the
desired type. The compiler will catch mistakes if the incorrect type is
passed to the macro, as the assignment types won't match.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Helen Koike <helen.koike@collabora.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> (core+ti-cal)
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-02-06 09:18:53 +01:00

1508 lines
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// 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;
/*
* Don't allow link changes if any entity in the graph is
* streaming, modifying the CHSEL register fields can disrupt
* running streams.
*/
media_device_for_each_entity(entity, &group->mdev)
if (entity->stream_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.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_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;
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);
return 0;
}
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);
}
/* -----------------------------------------------------------------------------
* Controls
*/
static int rvin_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct rvin_dev *vin =
container_of(ctrl->handler, struct rvin_dev, ctrl_handler);
switch (ctrl->id) {
case V4L2_CID_ALPHA_COMPONENT:
rvin_set_alpha(vin, ctrl->val);
break;
}
return 0;
}
static const struct v4l2_ctrl_ops rvin_ctrl_ops = {
.s_ctrl = rvin_s_ctrl,
};
/* -----------------------------------------------------------------------------
* 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;
v4l2_ctrl_new_std(&vin->ctrl_handler, &rvin_ctrl_ops,
V4L2_CID_ALPHA_COMPONENT, 0, 255, 1, 255);
if (vin->ctrl_handler.error) {
ret = vin->ctrl_handler.error;
v4l2_ctrl_handler_free(&vin->ctrl_handler);
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_of(struct rvin_dev *vin)
{
struct fwnode_handle *ep, *fwnode;
struct v4l2_fwnode_endpoint vep = {
.bus_type = V4L2_MBUS_UNKNOWN,
};
struct v4l2_async_subdev *asd;
int ret;
ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(vin->dev), 0, 0, 0);
if (!ep)
return 0;
fwnode = fwnode_graph_get_remote_endpoint(ep);
ret = v4l2_fwnode_endpoint_parse(ep, &vep);
fwnode_handle_put(ep);
if (ret) {
vin_err(vin, "Failed to parse %pOF\n", to_of_node(fwnode));
ret = -EINVAL;
goto out;
}
switch (vep.bus_type) {
case V4L2_MBUS_PARALLEL:
case V4L2_MBUS_BT656:
vin_dbg(vin, "Found %s media bus\n",
vep.bus_type == V4L2_MBUS_PARALLEL ?
"PARALLEL" : "BT656");
vin->parallel.mbus_type = vep.bus_type;
vin->parallel.bus = vep.bus.parallel;
break;
default:
vin_err(vin, "Unknown media bus type\n");
ret = -EINVAL;
goto out;
}
asd = v4l2_async_notifier_add_fwnode_subdev(&vin->notifier, fwnode,
struct v4l2_async_subdev);
if (IS_ERR(asd)) {
ret = PTR_ERR(asd);
goto out;
}
vin->parallel.asd = asd;
vin_dbg(vin, "Add parallel OF device %pOF\n", to_of_node(fwnode));
out:
fwnode_handle_put(fwnode);
return ret;
}
static int rvin_parallel_init(struct rvin_dev *vin)
{
int ret;
v4l2_async_notifier_init(&vin->notifier);
ret = rvin_parallel_parse_of(vin);
if (ret)
return ret;
/* If using mc, it's fine not to have any input registered. */
if (!vin->parallel.asd)
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->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 = media_device_register(&vin->group->mdev);
if (ret)
return 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].asd != asd)
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);
media_device_unregister(&vin->group->mdev);
}
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].asd != asd)
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(struct rvin_dev *vin, unsigned int id)
{
struct fwnode_handle *ep, *fwnode;
struct v4l2_fwnode_endpoint vep = {
.bus_type = V4L2_MBUS_CSI2_DPHY,
};
struct v4l2_async_subdev *asd;
int ret;
ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(vin->dev), 1, id, 0);
if (!ep)
return 0;
fwnode = fwnode_graph_get_remote_endpoint(ep);
ret = v4l2_fwnode_endpoint_parse(ep, &vep);
fwnode_handle_put(ep);
if (ret) {
vin_err(vin, "Failed to parse %pOF\n", to_of_node(fwnode));
ret = -EINVAL;
goto out;
}
if (!of_device_is_available(to_of_node(fwnode))) {
vin_dbg(vin, "OF device %pOF disabled, ignoring\n",
to_of_node(fwnode));
ret = -ENOTCONN;
goto out;
}
asd = v4l2_async_notifier_add_fwnode_subdev(&vin->group->notifier,
fwnode,
struct v4l2_async_subdev);
if (IS_ERR(asd)) {
ret = PTR_ERR(asd);
goto out;
}
vin->group->csi[vep.base.id].asd = asd;
vin_dbg(vin, "Add group OF device %pOF to slot %u\n",
to_of_node(fwnode), vep.base.id);
out:
fwnode_handle_put(fwnode);
return ret;
}
static int rvin_mc_parse_of_graph(struct rvin_dev *vin)
{
unsigned int count = 0, vin_mask = 0;
unsigned int i, id;
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++;
vin_mask |= BIT(i);
}
}
if (vin->group->count != count) {
mutex_unlock(&vin->group->lock);
return 0;
}
mutex_unlock(&vin->group->lock);
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_mask & BIT(i)))
continue;
for (id = 0; id < RVIN_CSI_MAX; id++) {
if (vin->group->csi[id].asd)
continue;
ret = rvin_mc_parse_of(vin->group->vin[i], id);
if (ret)
return ret;
}
}
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);
ret = v4l2_ctrl_handler_init(&vin->ctrl_handler, 1);
if (ret < 0)
return ret;
v4l2_ctrl_new_std(&vin->ctrl_handler, &rvin_ctrl_ops,
V4L2_CID_ALPHA_COMPONENT, 0, 255, 1, 255);
if (vin->ctrl_handler.error) {
ret = vin->ctrl_handler.error;
v4l2_ctrl_handler_free(&vin->ctrl_handler);
return ret;
}
vin->vdev.ctrl_handler = &vin->ctrl_handler;
return ret;
}
/* -----------------------------------------------------------------------------
* Suspend / Resume
*/
static int __maybe_unused rvin_suspend(struct device *dev)
{
struct rvin_dev *vin = dev_get_drvdata(dev);
if (vin->state != RUNNING)
return 0;
rvin_stop_streaming(vin);
vin->state = SUSPENDED;
return 0;
}
static int __maybe_unused rvin_resume(struct device *dev)
{
struct rvin_dev *vin = dev_get_drvdata(dev);
if (vin->state != SUSPENDED)
return 0;
/*
* Restore group master CHSEL setting.
*
* This needs to be done by every VIN resuming not only the master
* as we don't know if and in which order the master VINs will
* be resumed.
*/
if (vin->info->use_mc) {
unsigned int master_id = rvin_group_id_to_master(vin->id);
struct rvin_dev *master = vin->group->vin[master_id];
int ret;
if (WARN_ON(!master))
return -ENODEV;
ret = rvin_set_channel_routing(master, master->chsel);
if (ret)
return ret;
}
return rvin_start_streaming(vin);
}
/* -----------------------------------------------------------------------------
* 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_r8a774e1_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_CSI20, .channel = 0, .vin = 4, .mask = BIT(1) | BIT(4) },
{ .csi = RVIN_CSI20, .channel = 0, .vin = 5, .mask = BIT(0) },
{ .csi = RVIN_CSI20, .channel = 1, .vin = 5, .mask = BIT(4) },
{ .csi = RVIN_CSI20, .channel = 1, .vin = 6, .mask = BIT(0) },
{ .csi = RVIN_CSI20, .channel = 0, .vin = 6, .mask = BIT(2) },
{ .csi = RVIN_CSI20, .channel = 2, .vin = 6, .mask = BIT(4) },
{ .csi = RVIN_CSI20, .channel = 1, .vin = 7, .mask = BIT(1) | BIT(2) },
{ .csi = RVIN_CSI20, .channel = 3, .vin = 7, .mask = BIT(4) },
{ /* Sentinel */ }
};
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,
};
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,
.nv12 = 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,
.nv12 = 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,
.nv12 = 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,
.nv12 = 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,
.nv12 = 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,
.nv12 = 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-r8a774a1",
.data = &rcar_info_r8a7796,
},
{
.compatible = "renesas,vin-r8a774b1",
.data = &rcar_info_r8a77965,
},
{
.compatible = "renesas,vin-r8a774c0",
.data = &rcar_info_r8a77990,
},
{
.compatible = "renesas,vin-r8a774e1",
.data = &rcar_info_r8a774e1,
},
{
.compatible = "renesas,vin-r8a7778",
.data = &rcar_info_m1,
},
{
.compatible = "renesas,vin-r8a7779",
.data = &rcar_info_h1,
},
{
.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;
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);
vin->alpha = 0xff;
/*
* 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;
vin->base = devm_platform_ioremap_resource(pdev, 0);
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:
v4l2_ctrl_handler_free(&vin->ctrl_handler);
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) {
v4l2_async_notifier_unregister(&vin->group->notifier);
v4l2_async_notifier_cleanup(&vin->group->notifier);
rvin_group_put(vin);
}
v4l2_ctrl_handler_free(&vin->ctrl_handler);
rvin_dma_unregister(vin);
return 0;
}
static SIMPLE_DEV_PM_OPS(rvin_pm_ops, rvin_suspend, rvin_resume);
static struct platform_driver rcar_vin_driver = {
.driver = {
.name = "rcar-vin",
.pm = &rvin_pm_ops,
.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");
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