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path: root/drivers/media/platform/s5p-fimc/fimc-mdevice.c
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Diffstat (limited to 'drivers/media/platform/s5p-fimc/fimc-mdevice.c')
-rw-r--r--drivers/media/platform/s5p-fimc/fimc-mdevice.c400
1 files changed, 203 insertions, 197 deletions
diff --git a/drivers/media/platform/s5p-fimc/fimc-mdevice.c b/drivers/media/platform/s5p-fimc/fimc-mdevice.c
index b4a68ecf0ca7..a17fcb2d5d41 100644
--- a/drivers/media/platform/s5p-fimc/fimc-mdevice.c
+++ b/drivers/media/platform/s5p-fimc/fimc-mdevice.c
@@ -1,8 +1,8 @@
/*
* S5P/EXYNOS4 SoC series camera host interface media device driver
*
- * Copyright (C) 2011 Samsung Electronics Co., Ltd.
- * Contact: Sylwester Nawrocki, <s.nawrocki@samsung.com>
+ * Copyright (C) 2011 - 2012 Samsung Electronics Co., Ltd.
+ * Sylwester Nawrocki <s.nawrocki@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
@@ -62,16 +62,17 @@ static void fimc_pipeline_prepare(struct fimc_pipeline *p,
sd = media_entity_to_v4l2_subdev(pad->entity);
switch (sd->grp_id) {
- case SENSOR_GROUP_ID:
+ case GRP_ID_FIMC_IS_SENSOR:
+ case GRP_ID_SENSOR:
p->subdevs[IDX_SENSOR] = sd;
break;
- case CSIS_GROUP_ID:
+ case GRP_ID_CSIS:
p->subdevs[IDX_CSIS] = sd;
break;
- case FLITE_GROUP_ID:
+ case GRP_ID_FLITE:
p->subdevs[IDX_FLITE] = sd;
break;
- case FIMC_GROUP_ID:
+ case GRP_ID_FIMC:
/* No need to control FIMC subdev through subdev ops */
break;
default:
@@ -141,7 +142,7 @@ static int fimc_pipeline_s_power(struct fimc_pipeline *p, bool state)
* @me: media entity to start graph walk with
* @prep: true to acquire sensor (and csis) subdevs
*
- * This function must be called with the graph mutex held.
+ * Called with the graph mutex held.
*/
static int __fimc_pipeline_open(struct fimc_pipeline *p,
struct media_entity *me, bool prep)
@@ -161,30 +162,19 @@ static int __fimc_pipeline_open(struct fimc_pipeline *p,
return fimc_pipeline_s_power(p, 1);
}
-static int fimc_pipeline_open(struct fimc_pipeline *p,
- struct media_entity *me, bool prep)
-{
- int ret;
-
- mutex_lock(&me->parent->graph_mutex);
- ret = __fimc_pipeline_open(p, me, prep);
- mutex_unlock(&me->parent->graph_mutex);
-
- return ret;
-}
-
/**
* __fimc_pipeline_close - disable the sensor clock and pipeline power
* @fimc: fimc device terminating the pipeline
*
- * Disable power of all subdevs in the pipeline and turn off the external
- * sensor clock.
- * Called with the graph mutex held.
+ * Disable power of all subdevs and turn the external sensor clock off.
*/
static int __fimc_pipeline_close(struct fimc_pipeline *p)
{
int ret = 0;
+ if (!p || !p->subdevs[IDX_SENSOR])
+ return -EINVAL;
+
if (p->subdevs[IDX_SENSOR]) {
ret = fimc_pipeline_s_power(p, 0);
fimc_md_set_camclk(p->subdevs[IDX_SENSOR], false);
@@ -192,28 +182,12 @@ static int __fimc_pipeline_close(struct fimc_pipeline *p)
return ret == -ENXIO ? 0 : ret;
}
-static int fimc_pipeline_close(struct fimc_pipeline *p)
-{
- struct media_entity *me;
- int ret;
-
- if (!p || !p->subdevs[IDX_SENSOR])
- return -EINVAL;
-
- me = &p->subdevs[IDX_SENSOR]->entity;
- mutex_lock(&me->parent->graph_mutex);
- ret = __fimc_pipeline_close(p);
- mutex_unlock(&me->parent->graph_mutex);
-
- return ret;
-}
-
/**
- * fimc_pipeline_s_stream - invoke s_stream on pipeline subdevs
+ * __fimc_pipeline_s_stream - invoke s_stream on pipeline subdevs
* @pipeline: video pipeline structure
* @on: passed as the s_stream call argument
*/
-static int fimc_pipeline_s_stream(struct fimc_pipeline *p, bool on)
+static int __fimc_pipeline_s_stream(struct fimc_pipeline *p, bool on)
{
int i, ret;
@@ -235,9 +209,9 @@ static int fimc_pipeline_s_stream(struct fimc_pipeline *p, bool on)
/* Media pipeline operations for the FIMC/FIMC-LITE video device driver */
static const struct fimc_pipeline_ops fimc_pipeline_ops = {
- .open = fimc_pipeline_open,
- .close = fimc_pipeline_close,
- .set_stream = fimc_pipeline_s_stream,
+ .open = __fimc_pipeline_open,
+ .close = __fimc_pipeline_close,
+ .set_stream = __fimc_pipeline_s_stream,
};
/*
@@ -269,7 +243,7 @@ static struct v4l2_subdev *fimc_md_register_sensor(struct fimc_md *fmd,
return ERR_PTR(-EPROBE_DEFER);
}
v4l2_set_subdev_hostdata(sd, s_info);
- sd->grp_id = SENSOR_GROUP_ID;
+ sd->grp_id = GRP_ID_SENSOR;
v4l2_info(&fmd->v4l2_dev, "Registered sensor subdevice %s\n",
s_info->pdata.board_info->type);
@@ -316,7 +290,7 @@ static int fimc_md_register_sensor_entities(struct fimc_md *fmd)
for (i = 0; i < num_clients; i++) {
struct v4l2_subdev *sd;
- fmd->sensor[i].pdata = pdata->isp_info[i];
+ fmd->sensor[i].pdata = pdata->source_info[i];
ret = __fimc_md_set_camclk(fmd, &fmd->sensor[i], true);
if (ret)
break;
@@ -338,138 +312,149 @@ static int fimc_md_register_sensor_entities(struct fimc_md *fmd)
}
/*
- * MIPI CSIS and FIMC platform devices registration.
+ * MIPI-CSIS, FIMC and FIMC-LITE platform devices registration.
*/
-static int fimc_register_callback(struct device *dev, void *p)
+
+static int register_fimc_lite_entity(struct fimc_md *fmd,
+ struct fimc_lite *fimc_lite)
{
- struct fimc_dev *fimc = dev_get_drvdata(dev);
struct v4l2_subdev *sd;
- struct fimc_md *fmd = p;
int ret;
- if (fimc == NULL || fimc->id >= FIMC_MAX_DEVS)
- return 0;
+ if (WARN_ON(fimc_lite->index >= FIMC_LITE_MAX_DEVS ||
+ fmd->fimc_lite[fimc_lite->index]))
+ return -EBUSY;
- sd = &fimc->vid_cap.subdev;
- sd->grp_id = FIMC_GROUP_ID;
+ sd = &fimc_lite->subdev;
+ sd->grp_id = GRP_ID_FLITE;
v4l2_set_subdev_hostdata(sd, (void *)&fimc_pipeline_ops);
ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd);
- if (ret) {
- v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.%d (%d)\n",
- fimc->id, ret);
- return ret;
- }
-
- fmd->fimc[fimc->id] = fimc;
- return 0;
+ if (!ret)
+ fmd->fimc_lite[fimc_lite->index] = fimc_lite;
+ else
+ v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.LITE%d\n",
+ fimc_lite->index);
+ return ret;
}
-static int fimc_lite_register_callback(struct device *dev, void *p)
+static int register_fimc_entity(struct fimc_md *fmd, struct fimc_dev *fimc)
{
- struct fimc_lite *fimc = dev_get_drvdata(dev);
- struct fimc_md *fmd = p;
+ struct v4l2_subdev *sd;
int ret;
- if (fimc == NULL || fimc->index >= FIMC_LITE_MAX_DEVS)
- return 0;
+ if (WARN_ON(fimc->id >= FIMC_MAX_DEVS || fmd->fimc[fimc->id]))
+ return -EBUSY;
- fimc->subdev.grp_id = FLITE_GROUP_ID;
- v4l2_set_subdev_hostdata(&fimc->subdev, (void *)&fimc_pipeline_ops);
+ sd = &fimc->vid_cap.subdev;
+ sd->grp_id = GRP_ID_FIMC;
+ v4l2_set_subdev_hostdata(sd, (void *)&fimc_pipeline_ops);
- ret = v4l2_device_register_subdev(&fmd->v4l2_dev, &fimc->subdev);
- if (ret) {
- v4l2_err(&fmd->v4l2_dev,
- "Failed to register FIMC-LITE.%d (%d)\n",
- fimc->index, ret);
- return ret;
+ ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd);
+ if (!ret) {
+ fmd->fimc[fimc->id] = fimc;
+ fimc->vid_cap.user_subdev_api = fmd->user_subdev_api;
+ } else {
+ v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.%d (%d)\n",
+ fimc->id, ret);
}
-
- fmd->fimc_lite[fimc->index] = fimc;
- return 0;
+ return ret;
}
-static int csis_register_callback(struct device *dev, void *p)
+static int register_csis_entity(struct fimc_md *fmd,
+ struct platform_device *pdev,
+ struct v4l2_subdev *sd)
{
- struct v4l2_subdev *sd = dev_get_drvdata(dev);
- struct platform_device *pdev;
- struct fimc_md *fmd = p;
+ struct device_node *node = pdev->dev.of_node;
int id, ret;
- if (!sd)
- return 0;
- pdev = v4l2_get_subdevdata(sd);
- if (!pdev || pdev->id < 0 || pdev->id >= CSIS_MAX_ENTITIES)
- return 0;
- v4l2_info(sd, "csis%d sd: %s\n", pdev->id, sd->name);
+ id = node ? of_alias_get_id(node, "csis") : max(0, pdev->id);
+
+ if (WARN_ON(id >= CSIS_MAX_ENTITIES || fmd->csis[id].sd))
+ return -EBUSY;
- id = pdev->id < 0 ? 0 : pdev->id;
- sd->grp_id = CSIS_GROUP_ID;
+ if (WARN_ON(id >= CSIS_MAX_ENTITIES))
+ return 0;
+ sd->grp_id = GRP_ID_CSIS;
ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd);
if (!ret)
fmd->csis[id].sd = sd;
else
v4l2_err(&fmd->v4l2_dev,
- "Failed to register CSIS subdevice: %d\n", ret);
+ "Failed to register MIPI-CSIS.%d (%d)\n", id, ret);
return ret;
}
-/**
- * fimc_md_register_platform_entities - register FIMC and CSIS media entities
- */
-static int fimc_md_register_platform_entities(struct fimc_md *fmd)
+static int fimc_md_register_platform_entity(struct fimc_md *fmd,
+ struct platform_device *pdev,
+ int plat_entity)
{
- struct s5p_platform_fimc *pdata = fmd->pdev->dev.platform_data;
- struct device_driver *driver;
- int ret, i;
-
- driver = driver_find(FIMC_MODULE_NAME, &platform_bus_type);
- if (!driver) {
- v4l2_warn(&fmd->v4l2_dev,
- "%s driver not found, deffering probe\n",
- FIMC_MODULE_NAME);
- return -EPROBE_DEFER;
- }
-
- ret = driver_for_each_device(driver, NULL, fmd,
- fimc_register_callback);
- if (ret)
- return ret;
-
- driver = driver_find(FIMC_LITE_DRV_NAME, &platform_bus_type);
- if (driver && try_module_get(driver->owner)) {
- ret = driver_for_each_device(driver, NULL, fmd,
- fimc_lite_register_callback);
- if (ret)
- return ret;
- module_put(driver->owner);
- }
- /*
- * Check if there is any sensor on the MIPI-CSI2 bus and
- * if not skip the s5p-csis module loading.
- */
- if (pdata == NULL)
- return 0;
- for (i = 0; i < pdata->num_clients; i++) {
- if (pdata->isp_info[i].bus_type == FIMC_MIPI_CSI2) {
- ret = 1;
+ struct device *dev = &pdev->dev;
+ int ret = -EPROBE_DEFER;
+ void *drvdata;
+
+ /* Lock to ensure dev->driver won't change. */
+ device_lock(dev);
+
+ if (!dev->driver || !try_module_get(dev->driver->owner))
+ goto dev_unlock;
+
+ drvdata = dev_get_drvdata(dev);
+ /* Some subdev didn't probe succesfully id drvdata is NULL */
+ if (drvdata) {
+ switch (plat_entity) {
+ case IDX_FIMC:
+ ret = register_fimc_entity(fmd, drvdata);
break;
+ case IDX_FLITE:
+ ret = register_fimc_lite_entity(fmd, drvdata);
+ break;
+ case IDX_CSIS:
+ ret = register_csis_entity(fmd, pdev, drvdata);
+ break;
+ default:
+ ret = -ENODEV;
}
}
- if (!ret)
- return 0;
- driver = driver_find(CSIS_DRIVER_NAME, &platform_bus_type);
- if (!driver || !try_module_get(driver->owner)) {
- v4l2_warn(&fmd->v4l2_dev,
- "%s driver not found, deffering probe\n",
- CSIS_DRIVER_NAME);
- return -EPROBE_DEFER;
+ module_put(dev->driver->owner);
+dev_unlock:
+ device_unlock(dev);
+ if (ret == -EPROBE_DEFER)
+ dev_info(&fmd->pdev->dev, "deferring %s device registration\n",
+ dev_name(dev));
+ else if (ret < 0)
+ dev_err(&fmd->pdev->dev, "%s device registration failed (%d)\n",
+ dev_name(dev), ret);
+ return ret;
+}
+
+static int fimc_md_pdev_match(struct device *dev, void *data)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ int plat_entity = -1;
+ int ret;
+ char *p;
+
+ if (!get_device(dev))
+ return -ENODEV;
+
+ if (!strcmp(pdev->name, CSIS_DRIVER_NAME)) {
+ plat_entity = IDX_CSIS;
+ } else if (!strcmp(pdev->name, FIMC_LITE_DRV_NAME)) {
+ plat_entity = IDX_FLITE;
+ } else {
+ p = strstr(pdev->name, "fimc");
+ if (p && *(p + 4) == 0)
+ plat_entity = IDX_FIMC;
}
- return driver_for_each_device(driver, NULL, fmd,
- csis_register_callback);
+ if (plat_entity >= 0)
+ ret = fimc_md_register_platform_entity(data, pdev,
+ plat_entity);
+ put_device(dev);
+ return 0;
}
static void fimc_md_unregister_entities(struct fimc_md *fmd)
@@ -487,7 +472,7 @@ static void fimc_md_unregister_entities(struct fimc_md *fmd)
if (fmd->fimc_lite[i] == NULL)
continue;
v4l2_device_unregister_subdev(&fmd->fimc_lite[i]->subdev);
- fmd->fimc[i]->pipeline_ops = NULL;
+ fmd->fimc_lite[i]->pipeline_ops = NULL;
fmd->fimc_lite[i] = NULL;
}
for (i = 0; i < CSIS_MAX_ENTITIES; i++) {
@@ -503,6 +488,7 @@ static void fimc_md_unregister_entities(struct fimc_md *fmd)
fimc_md_unregister_sensor(fmd->sensor[i].subdev);
fmd->sensor[i].subdev = NULL;
}
+ v4l2_info(&fmd->v4l2_dev, "Unregistered all entities\n");
}
/**
@@ -518,7 +504,7 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd,
struct v4l2_subdev *sensor,
int pad, int link_mask)
{
- struct fimc_sensor_info *s_info;
+ struct fimc_sensor_info *s_info = NULL;
struct media_entity *sink;
unsigned int flags = 0;
int ret, i;
@@ -582,7 +568,7 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd,
if (ret)
break;
- v4l2_info(&fmd->v4l2_dev, "created link [%s] %c> [%s]",
+ v4l2_info(&fmd->v4l2_dev, "created link [%s] %c> [%s]\n",
source->name, flags ? '=' : '-', sink->name);
}
return 0;
@@ -602,7 +588,7 @@ static int __fimc_md_create_flite_source_links(struct fimc_md *fmd)
source = &fimc->subdev.entity;
sink = &fimc->vfd.entity;
/* FIMC-LITE's subdev and video node */
- ret = media_entity_create_link(source, FIMC_SD_PAD_SOURCE,
+ ret = media_entity_create_link(source, FLITE_SD_PAD_SOURCE_DMA,
sink, 0, flags);
if (ret)
break;
@@ -626,9 +612,9 @@ static int __fimc_md_create_flite_source_links(struct fimc_md *fmd)
*/
static int fimc_md_create_links(struct fimc_md *fmd)
{
- struct v4l2_subdev *csi_sensors[2] = { NULL };
+ struct v4l2_subdev *csi_sensors[CSIS_MAX_ENTITIES] = { NULL };
struct v4l2_subdev *sensor, *csis;
- struct s5p_fimc_isp_info *pdata;
+ struct fimc_source_info *pdata;
struct fimc_sensor_info *s_info;
struct media_entity *source, *sink;
int i, pad, fimc_id = 0, ret = 0;
@@ -646,8 +632,8 @@ static int fimc_md_create_links(struct fimc_md *fmd)
source = NULL;
pdata = &s_info->pdata;
- switch (pdata->bus_type) {
- case FIMC_MIPI_CSI2:
+ switch (pdata->sensor_bus_type) {
+ case FIMC_BUS_TYPE_MIPI_CSI2:
if (WARN(pdata->mux_id >= CSIS_MAX_ENTITIES,
"Wrong CSI channel id: %d\n", pdata->mux_id))
return -EINVAL;
@@ -658,28 +644,29 @@ static int fimc_md_create_links(struct fimc_md *fmd)
"but s5p-csis module is not loaded!\n"))
return -EINVAL;
- ret = media_entity_create_link(&sensor->entity, 0,
+ pad = sensor->entity.num_pads - 1;
+ ret = media_entity_create_link(&sensor->entity, pad,
&csis->entity, CSIS_PAD_SINK,
MEDIA_LNK_FL_IMMUTABLE |
MEDIA_LNK_FL_ENABLED);
if (ret)
return ret;
- v4l2_info(&fmd->v4l2_dev, "created link [%s] => [%s]",
+ v4l2_info(&fmd->v4l2_dev, "created link [%s] => [%s]\n",
sensor->entity.name, csis->entity.name);
source = NULL;
csi_sensors[pdata->mux_id] = sensor;
break;
- case FIMC_ITU_601...FIMC_ITU_656:
+ case FIMC_BUS_TYPE_ITU_601...FIMC_BUS_TYPE_ITU_656:
source = &sensor->entity;
pad = 0;
break;
default:
v4l2_err(&fmd->v4l2_dev, "Wrong bus_type: %x\n",
- pdata->bus_type);
+ pdata->sensor_bus_type);
return -EINVAL;
}
if (source == NULL)
@@ -690,7 +677,7 @@ static int fimc_md_create_links(struct fimc_md *fmd)
pad, link_mask);
}
- for (i = 0; i < ARRAY_SIZE(fmd->csis); i++) {
+ for (i = 0; i < CSIS_MAX_ENTITIES; i++) {
if (fmd->csis[i].sd == NULL)
continue;
source = &fmd->csis[i].sd->entity;
@@ -721,42 +708,61 @@ static int fimc_md_create_links(struct fimc_md *fmd)
/*
* The peripheral sensor clock management.
*/
+static void fimc_md_put_clocks(struct fimc_md *fmd)
+{
+ int i = FIMC_MAX_CAMCLKS;
+
+ while (--i >= 0) {
+ if (IS_ERR(fmd->camclk[i].clock))
+ continue;
+ clk_unprepare(fmd->camclk[i].clock);
+ clk_put(fmd->camclk[i].clock);
+ fmd->camclk[i].clock = ERR_PTR(-EINVAL);
+ }
+}
+
static int fimc_md_get_clocks(struct fimc_md *fmd)
{
+ struct device *dev = NULL;
char clk_name[32];
struct clk *clock;
- int i;
+ int ret, i;
+
+ for (i = 0; i < FIMC_MAX_CAMCLKS; i++)
+ fmd->camclk[i].clock = ERR_PTR(-EINVAL);
+
+ if (fmd->pdev->dev.of_node)
+ dev = &fmd->pdev->dev;
for (i = 0; i < FIMC_MAX_CAMCLKS; i++) {
snprintf(clk_name, sizeof(clk_name), "sclk_cam%u", i);
- clock = clk_get(NULL, clk_name);
- if (IS_ERR_OR_NULL(clock)) {
- v4l2_err(&fmd->v4l2_dev, "Failed to get clock: %s",
- clk_name);
- return -ENXIO;
+ clock = clk_get(dev, clk_name);
+
+ if (IS_ERR(clock)) {
+ dev_err(&fmd->pdev->dev, "Failed to get clock: %s\n",
+ clk_name);
+ ret = PTR_ERR(clock);
+ break;
+ }
+ ret = clk_prepare(clock);
+ if (ret < 0) {
+ clk_put(clock);
+ fmd->camclk[i].clock = ERR_PTR(-EINVAL);
+ break;
}
fmd->camclk[i].clock = clock;
}
- return 0;
-}
-
-static void fimc_md_put_clocks(struct fimc_md *fmd)
-{
- int i = FIMC_MAX_CAMCLKS;
+ if (ret)
+ fimc_md_put_clocks(fmd);
- while (--i >= 0) {
- if (IS_ERR_OR_NULL(fmd->camclk[i].clock))
- continue;
- clk_put(fmd->camclk[i].clock);
- fmd->camclk[i].clock = NULL;
- }
+ return ret;
}
static int __fimc_md_set_camclk(struct fimc_md *fmd,
struct fimc_sensor_info *s_info,
bool on)
{
- struct s5p_fimc_isp_info *pdata = &s_info->pdata;
+ struct fimc_source_info *pdata = &s_info->pdata;
struct fimc_camclk_info *camclk;
int ret = 0;
@@ -820,7 +826,9 @@ static int fimc_md_link_notify(struct media_pad *source,
struct fimc_dev *fimc = NULL;
struct fimc_pipeline *pipeline;
struct v4l2_subdev *sd;
+ struct mutex *lock;
int ret = 0;
+ int ref_count;
if (media_entity_type(sink->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
return 0;
@@ -828,28 +836,33 @@ static int fimc_md_link_notify(struct media_pad *source,
sd = media_entity_to_v4l2_subdev(sink->entity);
switch (sd->grp_id) {
- case FLITE_GROUP_ID:
+ case GRP_ID_FLITE:
fimc_lite = v4l2_get_subdevdata(sd);
+ if (WARN_ON(fimc_lite == NULL))
+ return 0;
pipeline = &fimc_lite->pipeline;
+ lock = &fimc_lite->lock;
break;
- case FIMC_GROUP_ID:
+ case GRP_ID_FIMC:
fimc = v4l2_get_subdevdata(sd);
+ if (WARN_ON(fimc == NULL))
+ return 0;
pipeline = &fimc->pipeline;
+ lock = &fimc->lock;
break;
default:
return 0;
}
if (!(flags & MEDIA_LNK_FL_ENABLED)) {
+ int i;
+ mutex_lock(lock);
ret = __fimc_pipeline_close(pipeline);
- pipeline->subdevs[IDX_SENSOR] = NULL;
- pipeline->subdevs[IDX_CSIS] = NULL;
-
- if (fimc) {
- mutex_lock(&fimc->lock);
+ for (i = 0; i < IDX_MAX; i++)
+ pipeline->subdevs[i] = NULL;
+ if (fimc)
fimc_ctrls_delete(fimc->vid_cap.ctx);
- mutex_unlock(&fimc->lock);
- }
+ mutex_unlock(lock);
return ret;
}
/*
@@ -857,23 +870,15 @@ static int fimc_md_link_notify(struct media_pad *source,
* pipeline is already in use, i.e. its video node is opened.
* Recreate the controls destroyed during the link deactivation.
*/
- if (fimc) {
- mutex_lock(&fimc->lock);
- if (fimc->vid_cap.refcnt > 0) {
- ret = __fimc_pipeline_open(pipeline,
- source->entity, true);
- if (!ret)
- ret = fimc_capture_ctrls_create(fimc);
- }
- mutex_unlock(&fimc->lock);
- } else {
- mutex_lock(&fimc_lite->lock);
- if (fimc_lite->ref_count > 0) {
- ret = __fimc_pipeline_open(pipeline,
- source->entity, true);
- }
- mutex_unlock(&fimc_lite->lock);
- }
+ mutex_lock(lock);
+
+ ref_count = fimc ? fimc->vid_cap.refcnt : fimc_lite->ref_count;
+ if (ref_count > 0)
+ ret = __fimc_pipeline_open(pipeline, source->entity, true);
+ if (!ret && fimc)
+ ret = fimc_capture_ctrls_create(fimc);
+
+ mutex_unlock(lock);
return ret ? -EPIPE : ret;
}
@@ -965,7 +970,8 @@ static int fimc_md_probe(struct platform_device *pdev)
/* Protect the media graph while we're registering entities */
mutex_lock(&fmd->media_dev.graph_mutex);
- ret = fimc_md_register_platform_entities(fmd);
+ ret = bus_for_each_dev(&platform_bus_type, NULL, fmd,
+ fimc_md_pdev_match);
if (ret)
goto err_unlock;