[PATCH v2 0/3] drm: Store USB device in struct drm_device

[Thomas Zimmermann]

The drivers gm12u320 and udl operate on USB devices. They leave the PCI
device in struct drm_device empty and store the USB device in their own
driver structure. It's expected that DRM core and helpers only touch the
PCI-device field for actual PCI devices.

Fix this special case by upcasting struct drm_device.dev to the USB
device. The drivers' udev variables are being removed.

v2:
	* upcast USB device from struct drm_device.dev (Daniel)

Thomas Zimmermann (3):
  drm: Add USB helpers
  drm/tiny/gm12u320: Retrieve USB device from struct drm_device.dev
  drm/udl: Retrieve USB device from struct drm_device.dev

 Documentation/gpu/drm-internals.rst |  5 +++
 drivers/gpu/drm/tiny/gm12u320.c     | 52 +++++++++++++----------------
 drivers/gpu/drm/udl/udl_connector.c |  9 ++---
 drivers/gpu/drm/udl/udl_drv.c       |  3 --
 drivers/gpu/drm/udl/udl_drv.h       |  1 -
 drivers/gpu/drm/udl/udl_main.c      | 25 ++++++++------
 include/drm/drm_usb_helper.h        | 25 ++++++++++++++
 7 files changed, 73 insertions(+), 47 deletions(-)
 create mode 100644 include/drm/drm_usb_helper.h

--
2.29.0