Merge /home/v4l/v4l/patchwork

* /home/v4l/v4l/patchwork: (376 commits)
  [media] staging/media: lirc_imon: add a __user annotation
  [media] radio: NUL terminate a user string
  [media] V4L2 spec: fix the description of V4L2_FBUF_CAP_SRC_CHROMAKEY
  [media] v4l2 framework doc: clarify locking
  [media] V4L2 Spec: clarify usage of V4L2_FBUF_FLAG_PRIMARY
  [media] V4L spec: fix typo and missing CAP_RDS documentation
  [media] go7007: Fix 2250 urb type
  [media] pwc: Use kmemdup rather than duplicating its implementation
  [media] cx25821: Use kmemdup rather than duplicating its implementation
  [media] v4l: Casting (void *) value returned by kmalloc is useless
  [media] dw2102: Use kmemdup rather than duplicating its implementation
  [media] drxd: Use kmemdup rather than duplicating its implementation
  [media] dib9090: limit the I2C speed
  [media] dib8096P: add the reference board TFE8096P
  [media] add the support for DiBcom dib8096P
  [media] dib7090: add the reference board TFE7790E
  [media] DiB8000: improve the tuning and the SNR monitoring
  [media] DiBcom: correct warnings
  [media] dib7090: add the reference board TFE7090E
  [media] dib7000p/dib0090: update the driver
  ...