On Tue Dec 31 20:04:34 2024 +0100, Lubomir Rintel wrote:
> In commit 4af65141e38e ("media: marvell: cafe: Register V4L2 device
> earlier"), a call to v4l2_device_register() was moved away from
> mccic_register() into its caller, marvell/cafe's cafe_pci_probe().
> This is not the only caller though -- there's also marvell/mmp.
>
> Add v4l2_device_register() into mmpcam_probe() to unbreak the MMP camera
> driver, in a fashion analogous to what's been done to the Cafe driver.
> Same for the teardown path.
>
> Fixes: 4af65141e38e ("media: marvell: cafe: Register V4L2 device earlier")
> Signed-off-by: Lubomir Rintel <[email protected]>
> Cc: [email protected] # v6.6+
> Signed-off-by: Hans Verkuil <[email protected]>
Patch committed.
Thanks,
Hans Verkuil
drivers/media/platform/marvell/mmp-driver.c | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)
---
diff --git a/drivers/media/platform/marvell/mmp-driver.c
b/drivers/media/platform/marvell/mmp-driver.c
index 3fd4fc1b9c48..d3da7ebb4a2b 100644
--- a/drivers/media/platform/marvell/mmp-driver.c
+++ b/drivers/media/platform/marvell/mmp-driver.c
@@ -231,13 +231,23 @@ static int mmpcam_probe(struct platform_device *pdev)
mcam_init_clk(mcam);
+ /*
+ * Register with V4L.
+ */
+
+ ret = v4l2_device_register(mcam->dev, &mcam->v4l2_dev);
+ if (ret)
+ return ret;
+
/*
* Create a match of the sensor against its OF node.
*/
ep = fwnode_graph_get_next_endpoint(of_fwnode_handle(pdev->dev.of_node),
NULL);
- if (!ep)
- return -ENODEV;
+ if (!ep) {
+ ret = -ENODEV;
+ goto out_v4l2_device_unregister;
+ }
v4l2_async_nf_init(&mcam->notifier, &mcam->v4l2_dev);
@@ -246,7 +256,7 @@ static int mmpcam_probe(struct platform_device *pdev)
fwnode_handle_put(ep);
if (IS_ERR(asd)) {
ret = PTR_ERR(asd);
- goto out;
+ goto out_v4l2_device_unregister;
}
/*
@@ -254,7 +264,7 @@ static int mmpcam_probe(struct platform_device *pdev)
*/
ret = mccic_register(mcam);
if (ret)
- goto out;
+ goto out_v4l2_device_unregister;
/*
* Add OF clock provider.
@@ -283,6 +293,8 @@ static int mmpcam_probe(struct platform_device *pdev)
return 0;
out:
mccic_shutdown(mcam);
+out_v4l2_device_unregister:
+ v4l2_device_unregister(&mcam->v4l2_dev);
return ret;
}
@@ -293,6 +305,7 @@ static void mmpcam_remove(struct platform_device *pdev)
struct mcam_camera *mcam = &cam->mcam;
mccic_shutdown(mcam);
+ v4l2_device_unregister(&mcam->v4l2_dev);
pm_runtime_force_suspend(mcam->dev);
}
