On 9/19/19 2:32 PM, Dafna Hirschfeld wrote:
Use configfs in order to create a device and set its topology
and remove the hardcoded device.
Signed-off-by: Helen Koike <helen.koike@xxxxxxxxxxxxx>
[refactored for upstream]
What does this mean?
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@xxxxxxxxxxxxx>
---
drivers/media/platform/vimc/vimc-capture.c | 21 +-
drivers/media/platform/vimc/vimc-common.h | 50 +--
drivers/media/platform/vimc/vimc-configfs.c | 6 +-
drivers/media/platform/vimc/vimc-core.c | 319 ++++++++------------
drivers/media/platform/vimc/vimc-debayer.c | 13 +-
drivers/media/platform/vimc/vimc-scaler.c | 9 +-
drivers/media/platform/vimc/vimc-sensor.c | 12 +-
7 files changed, 170 insertions(+), 260 deletions(-)
diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c
index 5cc419e76ce7..6ccf879c0b75 100644
--- a/drivers/media/platform/vimc/vimc-capture.c
+++ b/drivers/media/platform/vimc/vimc-capture.c
@@ -335,11 +335,12 @@ static void vimc_cap_release(struct video_device *vdev)
kfree(vcap);
}
-void vimc_cap_rm(struct vimc_device *vimc, struct vimc_ent_device *ved)
+void vimc_cap_rm(struct vimc_ent_device *ved)
{
- struct vimc_cap_device *vcap;
+ struct vimc_cap_device *vcap = container_of(ved,
+ struct vimc_cap_device,
+ ved);
- vcap = container_of(ved, struct vimc_cap_device, ved);
vb2_queue_release(&vcap->queue);
media_entity_cleanup(ved->ent);
video_unregister_device(&vcap->vdev);
@@ -397,8 +398,9 @@ struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
/* Allocate the vimc_cap_device struct */
vcap = kzalloc(sizeof(*vcap), GFP_KERNEL);
if (!vcap)
- return NULL;
+ return ERR_PTR(-ENOMEM);
+ strscpy(vcap->ved.name, vcfg_name, sizeof(vcap->ved.name));
/* Allocate the pads */
vcap->ved.pads =
vimc_pads_init(1, (const unsigned long[1]) {MEDIA_PAD_FL_SINK});
@@ -408,7 +410,7 @@ struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
}
/* Initialize the media entity */
- vcap->vdev.entity.name = vcfg_name;
+ vcap->vdev.entity.name = vcap->ved.name;
vcap->vdev.entity.function = MEDIA_ENT_F_IO_V4L;
ret = media_entity_pads_init(&vcap->vdev.entity,
1, vcap->ved.pads);
@@ -432,7 +434,7 @@ struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
ret = vb2_queue_init(q);
if (ret) {
- dev_err(&vimc->pdev.dev, "%s: vb2 queue init failed (err=%d)\n",
+ dev_err(vimc->mdev.dev, "%s: vb2 queue init failed (err=%d)\n",
vcfg_name, ret);
goto err_clean_m_ent;
}
@@ -452,7 +454,8 @@ struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
vcap->ved.ent = &vcap->vdev.entity;
vcap->ved.process_frame = vimc_cap_process_frame;
vcap->ved.vdev_get_format = vimc_cap_get_format;
- vcap->dev = &vimc->pdev.dev;
+
+ vcap->dev = vimc->mdev.dev;
/* Initialize the video_device struct */
vdev = &vcap->vdev;
@@ -471,7 +474,7 @@ struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
/* Register the video_device with the v4l2 and the media framework */
ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
if (ret) {
- dev_err(&vimc->pdev.dev, "%s: video register failed (err=%d)\n",
+ dev_err(vimc->mdev.dev, "%s: video register failed (err=%d)\n",
vcap->vdev.name, ret);
goto err_release_queue;
}
@@ -487,7 +490,7 @@ struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
err_free_vcap:
kfree(vcap);
- return NULL;
+ return ERR_PTR(ret);
}
static void vimc_cap_create_cfs_pads(struct config_group *ent_group)
diff --git a/drivers/media/platform/vimc/vimc-common.h b/drivers/media/platform/vimc/vimc-common.h
index e0e3b3ab7b19..5c7f451a7bf0 100644
--- a/drivers/media/platform/vimc/vimc-common.h
+++ b/drivers/media/platform/vimc/vimc-common.h
@@ -63,21 +63,6 @@ do { \
(fmt)->xfer_func = V4L2_XFER_FUNC_DEFAULT; \
} while (0)
-/**
- * struct vimc_platform_data - platform data to components
- *
- * @entity_name: The name of the entity to be created
- *
- * Board setup code will often provide additional information using the device's
- * platform_data field to hold additional information.
- * When injecting a new platform_device in the component system the core needs
- * to provide to the corresponding submodules the name of the entity that should
- * be used when registering the subdevice in the Media Controller system.
- */
-struct vimc_platform_data {
- char entity_name[32];
-};
-
/**
* struct vimc_platform_data_core - platform data to the core
*
@@ -157,61 +142,56 @@ struct vimc_link {
/**
* struct vimc_device - main device for vimc driver
*
- * @pdev pointer to the platform device
- * @pipe_cfg pointer to the vimc pipeline configuration structure
- * @ent_devs array of vimc_ent_device pointers
* @mdev the associated media_device parent
* @v4l2_dev Internal v4l2 parent device
+ * @ents list of vimc_ent_device objects
*/
struct vimc_device {
- struct platform_device pdev;
- const struct vimc_pipeline_config *pipe_cfg;
- struct vimc_ent_device **ent_devs;
struct media_device mdev;
struct v4l2_device v4l2_dev;
+
+ struct list_head ents;
};
/**
- * struct vimc_ent_config Structure which describes individual
- * configuration for each entity
- *
- * @name entity name
- * @ved pointer to vimc_ent_device (a node in the
- * topology)
+ * struct ent_type Structure for the add and remove callbacks
+ * of entity type
+ * @name entity type name
* @add subdev add hook - initializes and registers
* subdev called from vimc-core
* @rm subdev rm hook - unregisters and frees
* subdev called from vimc-core
*/
-struct vimc_ent_config {
- const char *name;
- struct vimc_ent_device *(*add)(struct vimc_device *vimc,
+
+struct vimc_ent_type {
+ const char name[VIMC_MAX_NAME_LEN];
+ struct vimc_ent_device* (*add)(struct vimc_device *vimc,
const char *vcfg_name);
- void (*rm)(struct vimc_device *vimc, struct vimc_ent_device *ved);
+ void (*rm)(struct vimc_ent_device *ent);
};
/* prototypes for vimc_ent_config add and rm hooks */
struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
const char *vcfg_name);
-void vimc_cap_rm(struct vimc_device *vimc, struct vimc_ent_device *ved);
+void vimc_cap_rm(struct vimc_ent_device *ent);
void vimc_cap_init(void);
void vimc_cap_exit(void);
struct vimc_ent_device *vimc_deb_add(struct vimc_device *vimc,
const char *vcfg_name);
-void vimc_deb_rm(struct vimc_device *vimc, struct vimc_ent_device *ved);
+void vimc_deb_rm(struct vimc_ent_device *ent);
void vimc_deb_init(void);
void vimc_deb_exit(void);
struct vimc_ent_device *vimc_sca_add(struct vimc_device *vimc,
const char *vcfg_name);
-void vimc_sca_rm(struct vimc_device *vimc, struct vimc_ent_device *ved);
+void vimc_sca_rm(struct vimc_ent_device *ent);
void vimc_sca_init(void);
void vimc_sca_exit(void);
struct vimc_ent_device *vimc_sen_add(struct vimc_device *vimc,
const char *vcfg_name);
-void vimc_sen_rm(struct vimc_device *vimc, struct vimc_ent_device *ved);
+void vimc_sen_rm(struct vimc_ent_device *ent);
void vimc_sen_init(void);
void vimc_sen_exit(void);
diff --git a/drivers/media/platform/vimc/vimc-configfs.c b/drivers/media/platform/vimc/vimc-configfs.c
index 933aece0bb5f..e99f926d2f93 100644
--- a/drivers/media/platform/vimc/vimc-configfs.c
+++ b/drivers/media/platform/vimc/vimc-configfs.c
@@ -335,8 +335,8 @@ static void vimc_cfs_src_pad_prepare_link_drop_item(
cfs_item = src_pad_group->cg_item.ci_parent->ci_parent;
cfs = container_of(cfs_item->ci_parent, struct vimc_cfs_device,
gdev.cg_item);
- cg_dbg(&cfs->gdev, "dropping prepared link '%s'\n",
- link_item->ci_name);
+ cg_dbg(&cfs->gdev, "dropping prepared link '%s' cfs=%p\n",
+ link_item->ci_name, cfs);
if (IS_PLUGGED(cfs))
vimc_cfs_device_unplug(cfs);
config_item_put(link_item);
@@ -614,7 +614,7 @@ static struct config_group *vimc_cfs_subsys_make_dev_group(
if (!cfs)
return ERR_PTR(-ENOMEM);
- cg_dbg(&cfs->gdev, "making dev group '%s'", name);
+ cg_dbg(&cfs->gdev, "making dev group '%s', cfs=%p", name, cfs);
/* Configure platform data */
INIT_LIST_HEAD(&cfs->ents);
INIT_LIST_HEAD(&cfs->links);
diff --git a/drivers/media/platform/vimc/vimc-core.c b/drivers/media/platform/vimc/vimc-core.c
index 476bad2cb2de..06a36cc1f00c 100644
--- a/drivers/media/platform/vimc/vimc-core.c
+++ b/drivers/media/platform/vimc/vimc-core.c
@@ -17,178 +17,137 @@
#include "vimc-configfs.h"
-#define VIMC_ENT_LINK(src, srcpad, sink, sinkpad, link_flags) { \
- .src_ent = src, \
- .src_pad = srcpad, \
- .sink_ent = sink, \
- .sink_pad = sinkpad, \
- .flags = link_flags, \
-}
-
-/* Structure which describes links between entities */
-struct vimc_ent_link {
- unsigned int src_ent;
- u16 src_pad;
- unsigned int sink_ent;
- u16 sink_pad;
- u32 flags;
-};
-/* Structure which describes the whole topology */
-struct vimc_pipeline_config {
- const struct vimc_ent_config *ents;
- size_t num_ents;
- const struct vimc_ent_link *links;
- size_t num_links;
-};
-
-/* --------------------------------------------------------------------------
- * Topology Configuration
- */
-
-static struct vimc_ent_config ent_config[] = {
- {
- .name = "Sensor A",
- .add = vimc_sen_add,
- .rm = vimc_sen_rm,
- },
+static struct vimc_ent_type ent_types[] = {
{
- .name = "Sensor B",
+ .name = VIMC_SEN_NAME,
.add = vimc_sen_add,
.rm = vimc_sen_rm,
},
{
- .name = "Debayer A",
+ .name = VIMC_DEB_NAME,
.add = vimc_deb_add,
.rm = vimc_deb_rm,
},
{
- .name = "Debayer B",
- .add = vimc_deb_add,
- .rm = vimc_deb_rm,
- },
- {
- .name = "Raw Capture 0",
- .add = vimc_cap_add,
- .rm = vimc_cap_rm,
- },
- {
- .name = "Raw Capture 1",
+ .name = VIMC_CAP_NAME,
.add = vimc_cap_add,
.rm = vimc_cap_rm,
},
{
- /* TODO: change this to vimc-input when it is implemented */
- .name = "RGB/YUV Input",
- .add = vimc_sen_add,
- .rm = vimc_sen_rm,
- },
- {
- .name = "Scaler",
+ .name = VIMC_SCA_NAME,
.add = vimc_sca_add,
.rm = vimc_sca_rm,
},
- {
- .name = "RGB/YUV Capture",
- .add = vimc_cap_add,
- .rm = vimc_cap_rm,
- },
};
-static const struct vimc_ent_link ent_links[] = {
- /* Link: Sensor A (Pad 0)->(Pad 0) Debayer A */
- VIMC_ENT_LINK(0, 0, 2, 0, MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE),
- /* Link: Sensor A (Pad 0)->(Pad 0) Raw Capture 0 */
- VIMC_ENT_LINK(0, 0, 4, 0, MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE),
- /* Link: Sensor B (Pad 0)->(Pad 0) Debayer B */
- VIMC_ENT_LINK(1, 0, 3, 0, MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE),
- /* Link: Sensor B (Pad 0)->(Pad 0) Raw Capture 1 */
- VIMC_ENT_LINK(1, 0, 5, 0, MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE),
- /* Link: Debayer A (Pad 1)->(Pad 0) Scaler */
- VIMC_ENT_LINK(2, 1, 7, 0, MEDIA_LNK_FL_ENABLED),
- /* Link: Debayer B (Pad 1)->(Pad 0) Scaler */
- VIMC_ENT_LINK(3, 1, 7, 0, 0),
- /* Link: RGB/YUV Input (Pad 0)->(Pad 0) Scaler */
- VIMC_ENT_LINK(6, 0, 7, 0, 0),
- /* Link: Scaler (Pad 1)->(Pad 0) RGB/YUV Capture */
- VIMC_ENT_LINK(7, 1, 8, 0, MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE),
-};
-
-static struct vimc_pipeline_config pipe_cfg = {
- .ents = ent_config,
- .num_ents = ARRAY_SIZE(ent_config),
- .links = ent_links,
- .num_links = ARRAY_SIZE(ent_links)
-};
+static struct vimc_ent_type *vimc_get_ent_type(const char *drv_name)
+{
+ int i;
-/* -------------------------------------------------------------------------- */
+ for (i = 0; i < ARRAY_SIZE(ent_types); i++)
+ if (!strcmp(drv_name, ent_types[i].name))
+ return &ent_types[i];
+ return NULL;
+}
-static void vimc_rm_links(struct vimc_device *vimc)
+struct vimc_ent_device *vimc_get_ent_dev(const struct vimc_device *vimc,
+ const char *const name)
{
- unsigned int i;
+ struct vimc_ent_device *ent;
- for (i = 0; i < vimc->pipe_cfg->num_ents; i++)
- media_entity_remove_links(vimc->ent_devs[i]->ent);
+ list_for_each_entry(ent, &vimc->ents, list) {
+ if (!strcmp(ent->name, name))
+ return ent;
+ }
+ return NULL;
}
+//TODO - remove subdevs upon failure
+static int vimc_core_links_create(const struct vimc_device *vimc,
+ const struct vimc_platform_data_core *pdata)
+{
+ struct vimc_link *link;
+
+ list_for_each_entry(link, pdata->links, list) {
+ struct vimc_ent_device *source = vimc_get_ent_dev(vimc,
+ link->source_name);
+ struct vimc_ent_device *sink = vimc_get_ent_dev(vimc,
+ link->sink_name);
+ int ret;
+
+ ret = media_create_pad_link(source->ent,
+ link->source_pad,
+ sink->ent,
+ link->sink_pad,
+ link->flags);
-static int vimc_create_links(struct vimc_device *vimc)
+ if (ret) {
+ pr_err("%s: failed to create link %s:%u->%s:%u\n",
+ __func__,
+ source->name, link->source_pad,
+ sink->name, link->sink_pad);
+ return ret;
+ }
+ pr_debug("%s: created link %s:%u->%s:%u\n", __func__,
+ source->name, link->source_pad,
+ sink->name, link->sink_pad);
+ }
+ return 0;
+}
+static void vimc_rm_subdevs(struct vimc_device *vimc,
+ const struct vimc_platform_data_core *pdata)
{
- unsigned int i;
- int ret;
+ struct vimc_ent_device *ent;
+ struct vimc_ent_device *ent_tmp;
- /* Initialize the links between entities */
- for (i = 0; i < vimc->pipe_cfg->num_links; i++) {
- const struct vimc_ent_link *link = &vimc->pipe_cfg->links[i];
+ list_for_each_entry_safe(ent, ent_tmp, &vimc->ents, list) {
- struct vimc_ent_device *ved_src =
- vimc->ent_devs[link->src_ent];
- struct vimc_ent_device *ved_sink =
- vimc->ent_devs[link->sink_ent];
+ struct vimc_ent_type *ent_type = vimc_get_ent_type(ent->drv_name);
- ret = media_create_pad_link(ved_src->ent, link->src_pad,
- ved_sink->ent, link->sink_pad,
- link->flags);
- if (ret)
- goto err_rm_links;
+ BUG_ON(!ent_type);
Please don't use BOG_ON here. We are trying to get rid of BUG_ONs in the
kernel.
+ dev_dbg(vimc->mdev.dev, "removing entity %s:%s\n",
+ ent->drv_name, ent->name);
+ list_del(&ent->list);
+ ent_type->rm(ent);
}
-
- return 0;
-
-err_rm_links:
- vimc_rm_links(vimc);
- return ret;
}
-static int vimc_add_subdevs(struct vimc_device *vimc)
+static int vimc_add_subdevs(struct vimc_device *vimc,
+ const struct vimc_platform_data_core *pdata)
{
- unsigned int i;
- struct vimc_ent_device *ved;
-
- for (i = 0; i < vimc->pipe_cfg->num_ents; i++) {
- dev_dbg(&vimc->pdev.dev, "new entity for %s\n",
- vimc->pipe_cfg->ents[i].name);
- ved = vimc->pipe_cfg->ents[i].add(vimc,
- vimc->pipe_cfg->ents[i].name);
- if (!ved) {
- dev_err(&vimc->pdev.dev, "add new entity for %s\n",
- vimc->pipe_cfg->ents[i].name);
- return -EINVAL;
+ struct vimc_entity_data *ent;
+ int ret;
+
+ list_for_each_entry(ent, pdata->ents, list) {
+
+ struct vimc_ent_type *ent_type =
+ vimc_get_ent_type(ent->drv_name);
+ struct vimc_ent_device *ent_dev;
+
+ BUG_ON(!ent_type);
Same comment as above. No BUD_ON Let's handle the error.
+
+ ent_dev = ent_type->add(vimc, ent->name);
+ if (IS_ERR(ent_dev)) {
+ ret = PTR_ERR(ent_dev);
+ dev_err(vimc->mdev.dev, "failed to add entity %s:%s\n",
+ ent->drv_name, ent->name);
+ goto err;
}
- vimc->ent_devs[i] = ved;
+ strscpy(ent_dev->name, ent->name, sizeof(ent_dev->name));
+ strscpy(ent_dev->drv_name, ent->drv_name,
+ sizeof(ent_dev->drv_name));
+ list_add(&ent_dev->list, &vimc->ents);
+ dev_dbg(vimc->mdev.dev, "%s: entity %s:%s added\n", __func__,
+ ent->drv_name, ent->name);
}
return 0;
+err:
+ vimc_rm_subdevs(vimc, pdata);
+ return ret;
}
-static void vimc_rm_subdevs(struct vimc_device *vimc)
-{
- unsigned int i;
-
- for (i = 0; i < vimc->pipe_cfg->num_ents; i++)
- if (vimc->ent_devs[i])
- vimc->pipe_cfg->ents[i].rm(vimc, vimc->ent_devs[i]);
-}
-
-static int vimc_register_devices(struct vimc_device *vimc)
+static int vimc_register_devices(struct vimc_device *vimc,
+ const struct vimc_platform_data_core *pdata)
{
int ret;
@@ -196,25 +155,15 @@ static int vimc_register_devices(struct vimc_device *vimc)
ret = v4l2_device_register(vimc->mdev.dev, &vimc->v4l2_dev);
if (ret) {
dev_err(vimc->mdev.dev,
- "v4l2 device register failed (err=%d)\n", ret);
+ "v4l2 device register failed (%d)\n", ret);
return ret;
}
- /* allocate ent_devs */
- vimc->ent_devs = kmalloc_array(vimc->pipe_cfg->num_ents,
- sizeof(*vimc->ent_devs),
- GFP_KERNEL);
- if (!vimc->ent_devs)
- goto err_v4l2_unregister;
-
- /* Invoke entity config hooks to initialize and register subdevs */
- ret = vimc_add_subdevs(vimc);
+ ret = vimc_add_subdevs(vimc, pdata);
if (ret)
- /* remove sundevs that got added */
- goto err_rm_subdevs;
+ goto err_v4l2_unregister;
- /* Initialize links */
- ret = vimc_create_links(vimc);
+ ret = vimc_core_links_create(vimc, pdata);
if (ret)
goto err_rm_subdevs;
@@ -222,16 +171,15 @@ static int vimc_register_devices(struct vimc_device *vimc)
ret = media_device_register(&vimc->mdev);
if (ret) {
dev_err(vimc->mdev.dev,
- "media device register failed (err=%d)\n", ret);
+ "media device register failed (%d)\n", ret);
goto err_rm_subdevs;
}
- /* Expose all subdev's nodes*/
+ /* Expose all subdev's nodes */
ret = v4l2_device_register_subdev_nodes(&vimc->v4l2_dev);
if (ret) {
dev_err(vimc->mdev.dev,
- "vimc subdev nodes registration failed (err=%d)\n",
- ret);
+ "vimc subdev nodes registration failed (%d)\n", ret);
goto err_mdev_unregister;
}
@@ -241,30 +189,28 @@ static int vimc_register_devices(struct vimc_device *vimc)
media_device_unregister(&vimc->mdev);
media_device_cleanup(&vimc->mdev);
err_rm_subdevs:
- vimc_rm_subdevs(vimc);
- kfree(vimc->ent_devs);
+ vimc_rm_subdevs(vimc, pdata);
err_v4l2_unregister:
v4l2_device_unregister(&vimc->v4l2_dev);
return ret;
}
-static void vimc_unregister(struct vimc_device *vimc)
-{
- media_device_unregister(&vimc->mdev);
- media_device_cleanup(&vimc->mdev);
- v4l2_device_unregister(&vimc->v4l2_dev);
- kfree(vimc->ent_devs);
-}
-
static int vimc_probe(struct platform_device *pdev)
{
- struct vimc_device *vimc = container_of(pdev, struct vimc_device, pdev);
+ const struct vimc_platform_data_core *pdata = pdev->dev.platform_data;
+ struct vimc_device *vimc;
int ret;
- dev_dbg(&pdev->dev, "probe");
+ dev_dbg(&pdev->dev, "probe\n");
+
+ vimc = devm_kzalloc(&pdev->dev, sizeof(*vimc),
+ GFP_KERNEL);
+ if (!vimc)
+ return -ENOMEM;
memset(&vimc->mdev, 0, sizeof(vimc->mdev));
+ INIT_LIST_HEAD(&vimc->ents);
/* Link the media device within the v4l2_device */
vimc->v4l2_dev.mdev = &vimc->mdev;
@@ -277,44 +223,33 @@ static int vimc_probe(struct platform_device *pdev)
vimc->mdev.dev = &pdev->dev;
media_device_init(&vimc->mdev);
- ret = vimc_register_devices(vimc);
- if (ret) {
- media_device_cleanup(&vimc->mdev);
+ ret = vimc_register_devices(vimc, pdata);
+ if (ret)
return ret;
- }
-
+ platform_set_drvdata(pdev, vimc);
return 0;
}
static int vimc_remove(struct platform_device *pdev)
{
- struct vimc_device *vimc = container_of(pdev, struct vimc_device, pdev);
+ struct vimc_device *vimc = platform_get_drvdata(pdev);
+ struct vimc_platform_data_core *pdata = pdev->dev.platform_data;
- dev_dbg(&pdev->dev, "remove");
+ dev_dbg(&pdev->dev, "remove\n");
- vimc_rm_subdevs(vimc);
- vimc_unregister(vimc);
+ media_device_unregister(&vimc->mdev);
+ media_device_cleanup(&vimc->mdev);
+ vimc_rm_subdevs(vimc, pdata);
+ v4l2_device_unregister(&vimc->v4l2_dev);
return 0;
}
-static void vimc_dev_release(struct device *dev)
-{
-}
-
-static struct vimc_device vimc_dev = {
- .pipe_cfg = &pipe_cfg,
- .pdev = {
- .name = VIMC_PDEV_NAME,
- .dev.release = vimc_dev_release,
- }
-};
-
static struct platform_driver vimc_pdrv = {
.probe = vimc_probe,
.remove = vimc_remove,
.driver = {
- .name = VIMC_PDEV_NAME,
+ .name = "vimc-core",
},
};
@@ -322,18 +257,9 @@ static int __init vimc_init(void)
{
int ret;
- ret = platform_device_register(&vimc_dev.pdev);
- if (ret) {
- dev_err(&vimc_dev.pdev.dev,
- "platform device registration failed (err=%d)\n", ret);
- return ret;
- }
-
ret = platform_driver_register(&vimc_pdrv);
if (ret) {
- dev_err(&vimc_dev.pdev.dev,
- "platform driver registration failed (err=%d)\n", ret);
- platform_driver_unregister(&vimc_pdrv);
+ pr_err("vimc init: platform driver register failed (%d)\n", ret);
return ret;
}
@@ -361,7 +287,6 @@ static void __exit vimc_exit(void)
vimc_cfs_subsys_unregister();
platform_driver_unregister(&vimc_pdrv);
- platform_device_unregister(&vimc_dev.pdev);
}
module_init(vimc_init);
diff --git a/drivers/media/platform/vimc/vimc-debayer.c b/drivers/media/platform/vimc/vimc-debayer.c
index e461b155e514..2391ac3b5014 100644
--- a/drivers/media/platform/vimc/vimc-debayer.c
+++ b/drivers/media/platform/vimc/vimc-debayer.c
@@ -486,11 +486,12 @@ static const struct v4l2_subdev_internal_ops vimc_deb_int_ops = {
.release = vimc_deb_release,
};
-void vimc_deb_rm(struct vimc_device *vimc, struct vimc_ent_device *ved)
+void vimc_deb_rm(struct vimc_ent_device *ved)
{
- struct vimc_deb_device *vdeb;
+ struct vimc_deb_device *vdeb = container_of(ved,
+ struct vimc_deb_device,
+ ved);
- vdeb = container_of(ved, struct vimc_deb_device, ved);
vimc_ent_sd_unregister(ved, &vdeb->sd);
}
@@ -504,7 +505,7 @@ struct vimc_ent_device *vimc_deb_add(struct vimc_device *vimc,
/* Allocate the vdeb struct */
vdeb = kzalloc(sizeof(*vdeb), GFP_KERNEL);
if (!vdeb)
- return NULL;
+ return ERR_PTR(-ENOMEM);
/* Initialize ved and sd */
ret = vimc_ent_sd_register(&vdeb->ved, &vdeb->sd, v4l2_dev,
@@ -515,11 +516,11 @@ struct vimc_ent_device *vimc_deb_add(struct vimc_device *vimc,
&vimc_deb_int_ops, &vimc_deb_ops);
if (ret) {
kfree(vdeb);
- return NULL;
+ return ERR_PTR(ret);
}
vdeb->ved.process_frame = vimc_deb_process_frame;
- vdeb->dev = &vimc->pdev.dev;
+ vdeb->dev = vimc->mdev.dev;
/* Initialize the frame format */
vdeb->sink_fmt = sink_fmt_default;
diff --git a/drivers/media/platform/vimc/vimc-scaler.c b/drivers/media/platform/vimc/vimc-scaler.c
index e5cf0073d68a..7d9726d0b39c 100644
--- a/drivers/media/platform/vimc/vimc-scaler.c
+++ b/drivers/media/platform/vimc/vimc-scaler.c
@@ -345,11 +345,12 @@ static const struct v4l2_subdev_internal_ops vimc_sca_int_ops = {
.release = vimc_sca_release,
};
-void vimc_sca_rm(struct vimc_device *vimc, struct vimc_ent_device *ved)
+void vimc_sca_rm(struct vimc_ent_device *ved)
{
- struct vimc_sca_device *vsca;
+ struct vimc_sca_device *vsca = container_of(ved,
+ struct vimc_sca_device,
+ ved);
- vsca = container_of(ved, struct vimc_sca_device, ved);
vimc_ent_sd_unregister(ved, &vsca->sd);
}
@@ -363,7 +364,7 @@ struct vimc_ent_device *vimc_sca_add(struct vimc_device *vimc,
/* Allocate the vsca struct */
vsca = kzalloc(sizeof(*vsca), GFP_KERNEL);
if (!vsca)
- return NULL;
+ return ERR_PTR(-ENOMEM);
/* Initialize ved and sd */
ret = vimc_ent_sd_register(&vsca->ved, &vsca->sd, v4l2_dev,
diff --git a/drivers/media/platform/vimc/vimc-sensor.c b/drivers/media/platform/vimc/vimc-sensor.c
index 22e3ad98c818..556d49f338ab 100644
--- a/drivers/media/platform/vimc/vimc-sensor.c
+++ b/drivers/media/platform/vimc/vimc-sensor.c
@@ -300,12 +300,12 @@ static const struct v4l2_subdev_internal_ops vimc_sen_int_ops = {
.release = vimc_sen_release,
};
-void vimc_sen_rm(struct vimc_device *vimc, struct vimc_ent_device *ved)
+void vimc_sen_rm(struct vimc_ent_device *ent)
{
struct vimc_sen_device *vsen;
- vsen = container_of(ved, struct vimc_sen_device, ved);
- vimc_ent_sd_unregister(ved, &vsen->sd);
+ vsen = container_of(ent, struct vimc_sen_device, ved);
+ vimc_ent_sd_unregister(ent, &vsen->sd);
}
/* Image Processing Controls */
@@ -335,7 +335,7 @@ struct vimc_ent_device *vimc_sen_add(struct vimc_device *vimc,
/* Allocate the vsen struct */
vsen = kzalloc(sizeof(*vsen), GFP_KERNEL);
if (!vsen)
- return NULL;
+ return ERR_PTR(-ENOMEM);
v4l2_ctrl_handler_init(&vsen->hdl, 4);
@@ -369,7 +369,7 @@ struct vimc_ent_device *vimc_sen_add(struct vimc_device *vimc,
goto err_free_hdl;
vsen->ved.process_frame = vimc_sen_process_frame;
- vsen->dev = &vimc->pdev.dev;
+ vsen->dev = vimc->mdev.dev;
/* Initialize the frame format */
vsen->mbus_format = fmt_default;
@@ -390,7 +390,7 @@ struct vimc_ent_device *vimc_sen_add(struct vimc_device *vimc,
err_free_vsen:
kfree(vsen);
- return NULL;
+ return ERR_PTR(ret);
}
static void vimc_sen_create_cfs_pads(struct config_group *ent_group)
thanks,
-- Shuah
