linux/drivers/media
Tomasz Figa ee494cf377 media: v4l2-device: Link subdevices to their parent devices if available
Currently v4l2_device_register_subdev_nodes() does not initialize the
dev_parent field of the video_device structs it creates for subdevices
being registered. This leads to __video_register_device() falling back
to the parent device of associated v4l2_device struct, which often does
not match the physical device the subdevice is registered for.

Due to the problem above, the links between real devices and v4l-subdev
nodes cannot be obtained from sysfs, which might be confusing for the
userspace trying to identify the hardware.

Fix this by initializing the dev_parent field of the video_device struct
with the value of dev field of the v4l2_subdev struct. In case of
subdevices without a parent struct device, the field will be NULL and the
old behavior will be preserved by the semantics of
__video_register_device().

Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-07 10:28:41 -05:00
..
cec media: cec: keep track of outstanding transmits 2018-11-23 05:56:14 -05:00
common media: vb2: be sure to unlock mutex on errors 2018-11-23 07:29:54 -05:00
dvb-core media: dvb_frontend: add debug message for frequency intervals 2018-11-23 11:59:45 -05:00
dvb-frontends media: remove redundant include moduleparam.h 2018-12-05 04:33:45 -05:00
firewire media: firewire: Fix app_info parameter type in avc_ca{,_app}_info 2018-12-05 05:34:33 -05:00
i2c media: video-i2c: check if chip struct has set_power function 2018-12-07 08:33:23 -05:00
mmc media: siano: use GFP_DMA only for smssdio 2018-05-15 08:04:42 -04:00
pci media: ddbridge: remove another duplicate of io.h and sort includes 2018-12-05 05:04:49 -05:00
platform media: vivid: Improve timestamping 2018-12-07 08:30:33 -05:00
radio media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
rc media: rc: ensure close() is called on rc_unregister_device 2018-11-22 13:33:24 -05:00
spi media: cxd2880-spi: Add optional vcc regulator 2018-12-03 13:33:16 -05:00
tuners media: si2157: declare its own pads 2018-09-17 13:16:19 -04:00
usb media: siano: Use kmemdup instead of duplicating its function 2018-12-07 09:42:18 -05:00
v4l2-core media: v4l2-device: Link subdevices to their parent devices if available 2018-12-07 10:28:41 -05:00
Kconfig media: cec: Kconfig coding style issue 2018-05-09 16:26:50 -04:00
Makefile media: media-request: implement media requests 2018-08-31 11:04:51 -04:00
media-device.c media updates for v4.20-rc1 2018-10-31 10:53:29 -07:00
media-devnode.c MAINTAINERS & files: Canonize the e-mails I use at files 2018-05-04 06:21:06 -04:00
media-entity.c media: v4l2-mc: switch it to use the new approach to setup pipelines 2018-09-17 13:16:19 -04:00
media-request.c media: media-request: Add compat ioctl 2018-11-20 12:53:27 -05:00