6.14-stable review patch. If anyone has any objections, please let me know.
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From: Bingbu Cao bingbu.cao@intel.com
commit 6f0ab5d3671f7cbb326c8cab6fb69cb7ab9901cc upstream.
The bus_info in v4l2_capability of IPU6 isys v4l2_dev is missing. The driver didn't set the dev_parent of v4l2_dev, its parent is set to its parent auxdev which is neither platform nor PCI device, thus media_set_bus_info() will not set the bus_info of v4l2_capability, then `v4l2-ctl --all` cannot show the bus_info.
This patch fixes it by setting the dev_parent of video_device and v4l2 framework can detect the device type and set the bus_info instead.
Fixes: 3c1dfb5a69cf ("media: intel/ipu6: input system video nodes and buffer queues") Cc: stable@vger.kernel.org Signed-off-by: Hidenori Kobayashi hidenorik@chromium.org Signed-off-by: Bingbu Cao bingbu.cao@intel.com Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Signed-off-by: Hans Verkuil hverkuil@xs4all.nl Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/media/pci/intel/ipu6/ipu6-isys-video.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/media/pci/intel/ipu6/ipu6-isys-video.c +++ b/drivers/media/pci/intel/ipu6/ipu6-isys-video.c @@ -1296,6 +1296,7 @@ int ipu6_isys_video_init(struct ipu6_isy av->vdev.release = video_device_release_empty; av->vdev.fops = &isys_fops; av->vdev.v4l2_dev = &av->isys->v4l2_dev; + av->vdev.dev_parent = &av->isys->adev->isp->pdev->dev; if (!av->vdev.ioctl_ops) av->vdev.ioctl_ops = &ipu6_v4l2_ioctl_ops; av->vdev.queue = &av->aq.vbq;