Avoid verifying bound async sensor sub-devices by their of_nodes,
which duplicates v4l2-async functionality, in favour of matching
them by the corresponding struct v4l2_async_subdev. The structures
are now being aggregated in the newly introduced struct fimc_async_subdevs
which allows for categorizing async sub-devices by their type upon
DT node parsing and recognizing the type easily when they're being bound.
Signed-off-by: Jacek Anaszewski <j.anaszewski@xxxxxxxxxxx>
Acked-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Cc: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
---
drivers/media/platform/exynos4-is/media-dev.c | 34 +++++++++++++++++++------
drivers/media/platform/exynos4-is/media-dev.h | 8 ++++--
2 files changed, 32 insertions(+), 10 deletions(-)
diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index f315ef9..ff36a3b 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -331,6 +331,8 @@ static int fimc_md_parse_port_node(struct fimc_md *fmd,
unsigned int index)
{
struct fimc_source_info *pd = &fmd->sensor[index].pdata;
+ struct v4l2_async_notifier *notifier = &fmd->subdev_notifier;
+ struct v4l2_async_subdev *asd;
struct device_node *rem, *ep, *np;
struct v4l2_of_endpoint endpoint;
@@ -387,9 +389,11 @@ static int fimc_md_parse_port_node(struct fimc_md *fmd,
if (WARN_ON(index >= ARRAY_SIZE(fmd->sensor)))
return -EINVAL;
- fmd->sensor[index].asd.match_type = V4L2_ASYNC_MATCH_OF;
- fmd->sensor[index].asd.match.of.node = rem;
- fmd->async_subdevs[index] = &fmd->sensor[index].asd;
+ asd = &fmd->async_subdevs.sensors[index];
+ asd->match_type = V4L2_ASYNC_MATCH_OF;
+ asd->match.of.node = rem;
+ notifier->subdevs[notifier->num_subdevs++] = asd;
+ fmd->sensor[index].asd = asd;
fmd->num_sensors++;
@@ -1272,12 +1276,13 @@ static int subdev_notifier_bound(struct v4l2_async_notifier *notifier,
struct v4l2_async_subdev *asd)
{
struct fimc_md *fmd = notifier_to_fimc_md(notifier);
+ struct fimc_async_subdevs *async_subdevs = &fmd->async_subdevs;
struct fimc_sensor_info *si = NULL;
int i;
/* Find platform data for this sensor subdev */
- for (i = 0; i < ARRAY_SIZE(fmd->sensor); i++)
- if (fmd->sensor[i].asd.match.of.node == subdev->dev->of_node)
+ for (i = 0; i < ARRAY_SIZE(async_subdevs->sensors); i++)
+ if (fmd->sensor[i].asd == asd)
si = &fmd->sensor[i];
if (si == NULL)
@@ -1317,6 +1322,19 @@ unlock:
return ret;
}
+static int fimc_md_register_async_entities(struct fimc_md *fmd)
+{
+ struct device *dev = fmd->media_dev.dev;
+ struct v4l2_async_notifier *notifier = &fmd->subdev_notifier;
+
+ notifier->subdevs = devm_kcalloc(dev, FIMC_MAX_SENSORS,
+ sizeof(*notifier->subdevs), GFP_KERNEL);
+ if (!notifier->subdevs)
+ return -ENOMEM;
+
+ return fimc_md_register_sensor_entities(fmd);
+}
+
static int fimc_md_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -1379,7 +1397,7 @@ static int fimc_md_probe(struct platform_device *pdev)
goto err_clk;
}
- ret = fimc_md_register_sensor_entities(fmd);
+ ret = fimc_md_register_async_entities(fmd);
if (ret) {
mutex_unlock(&fmd->media_dev.graph_mutex);
goto err_m_ent;
@@ -1402,8 +1420,6 @@ static int fimc_md_probe(struct platform_device *pdev)
}
if (fmd->num_sensors > 0) {
- fmd->subdev_notifier.subdevs = fmd->async_subdevs;
- fmd->subdev_notifier.num_subdevs = fmd->num_sensors;
fmd->subdev_notifier.bound = subdev_notifier_bound;
fmd->subdev_notifier.complete = subdev_notifier_complete;
fmd->num_sensors = 0;
@@ -1412,6 +1428,8 @@ static int fimc_md_probe(struct platform_device *pdev)
&fmd->subdev_notifier);
if (ret)
goto err_clk_p;
+ } else {
+ devm_kfree(dev, fmd->subdev_notifier.subdevs);
}
return 0;
diff --git a/drivers/media/platform/exynos4-is/media-dev.h b/drivers/media/platform/exynos4-is/media-dev.h
index 0321454..ff6d020 100644
--- a/drivers/media/platform/exynos4-is/media-dev.h
+++ b/drivers/media/platform/exynos4-is/media-dev.h
@@ -88,11 +88,15 @@ struct fimc_camclk_info {
*/
struct fimc_sensor_info {
struct fimc_source_info pdata;
- struct v4l2_async_subdev asd;
+ struct v4l2_async_subdev *asd;
struct v4l2_subdev *subdev;
struct fimc_dev *host;
};
+struct fimc_async_subdevs {
+ struct v4l2_async_subdev sensors[FIMC_MAX_SENSORS];
+};
+
struct cam_clk {
struct clk_hw hw;
struct fimc_md *fmd;
@@ -149,7 +153,7 @@ struct fimc_md {
} clk_provider;
struct v4l2_async_notifier subdev_notifier;
- struct v4l2_async_subdev *async_subdevs[FIMC_MAX_SENSORS];
+ struct fimc_async_subdevs async_subdevs;
bool user_subdev_api;
spinlock_t slock;
--
1.7.9.5
--
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