The "s5p-fimc-md" platform device platform_data is used to pass
attached camera sensor data. Not allowing device probe() to succeed
when it's null prevents using FIMC as a mem-to-mem device only.
Fix this by removing the platform_data check against null and
registering sensors only if platform_data is specified.
Also add logging of the information which /dev/video is assigned
to which device during probe().
Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/media/video/s5p-fimc/fimc-mdevice.c | 35 ++++++++++++++++----------
1 files changed, 21 insertions(+), 14 deletions(-)
diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c
index d558ae7..fc81f6f 100644
--- a/drivers/media/video/s5p-fimc/fimc-mdevice.c
+++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c
@@ -385,20 +385,28 @@ static void fimc_md_unregister_entities(struct fimc_md *fmd)
static int fimc_md_register_video_nodes(struct fimc_md *fmd)
{
+ struct video_device *vdev;
int i, ret = 0;
for (i = 0; i < FIMC_MAX_DEVS && !ret; i++) {
if (!fmd->fimc[i])
continue;
- if (fmd->fimc[i]->m2m.vfd)
- ret = video_register_device(fmd->fimc[i]->m2m.vfd,
- VFL_TYPE_GRABBER, -1);
- if (ret)
- break;
- if (fmd->fimc[i]->vid_cap.vfd)
- ret = video_register_device(fmd->fimc[i]->vid_cap.vfd,
- VFL_TYPE_GRABBER, -1);
+ vdev = fmd->fimc[i]->m2m.vfd;
+ if (vdev) {
+ ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
+ if (ret)
+ break;
+ v4l2_info(&fmd->v4l2_dev, "Registered %s as /dev/%s\n",
+ vdev->name, video_device_node_name(vdev));
+ }
+
+ vdev = fmd->fimc[i]->vid_cap.vfd;
+ if (vdev == NULL)
+ continue;
+ ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
+ v4l2_info(&fmd->v4l2_dev, "Registered %s as /dev/%s\n",
+ vdev->name, video_device_node_name(vdev));
}
return ret;
@@ -746,9 +754,6 @@ static int __devinit fimc_md_probe(struct platform_device *pdev)
struct fimc_md *fmd;
int ret;
- if (WARN(!pdev->dev.platform_data, "Platform data not specified!\n"))
- return -EINVAL;
-
fmd = kzalloc(sizeof(struct fimc_md), GFP_KERNEL);
if (!fmd)
return -ENOMEM;
@@ -786,9 +791,11 @@ static int __devinit fimc_md_probe(struct platform_device *pdev)
if (ret)
goto err3;
- ret = fimc_md_register_sensor_entities(fmd);
- if (ret)
- goto err3;
+ if (pdev->dev.platform_data) {
+ ret = fimc_md_register_sensor_entities(fmd);
+ if (ret)
+ goto err3;
+ }
ret = fimc_md_create_links(fmd);
if (ret)
goto err3;
--
1.7.7.1
--
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