vivid: Add HDMI (dis)connect emulation

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This patch series makes vivid V4L2-compliant* by adding HDMI (dis)-
connect emulation. This is done by by adding a custom display_present
control to vivid output HDMI devices, along with the following standard
controls:

-ctrl_tx_edid_present
-ctrl_tx_hotplug
-ctrl_tx_rxsense
-ctrl_rx_power_present

* Fixes the following warning for HDMI input devices:
   -V4L2_CID_DV_RX_POWER_PRESENT not found for input n
  Fixes the following warnings for HDMI ouptut devices:
   -V4L2_CID_DV_TX_HOTPLUG not found for output n
   -V4L2_CID_DV_TX_EDID_PRESENT not found for output n

Johan Korsnes (8):
      media: vivid: make input dv_timings per-input
      media: vivid: make input std_signal per-input
      media: vivid: add display present control
      media: vivid: add number of HDMI ports to device state
      media: vivid: add HDMI (dis)connect TX emulation
      media: vivid: add HDMI (dis)connect RX emulation
      media: vivid: add CEC support to display present ctrl
      media: vivid.rst: describe display present control

Documentation/media/v4l-drivers/vivid.rst     |   5 +
drivers/media/platform/vivid/vivid-core.c     |  36 ++++--
drivers/media/platform/vivid/vivid-core.h     |  32 +++--
drivers/media/platform/vivid/vivid-ctrls.c    | 105 ++++++++++++++--
.../media/platform/vivid/vivid-kthread-cap.c  |   8 +-
drivers/media/platform/vivid/vivid-vbi-cap.c  |  16 +--
drivers/media/platform/vivid/vivid-vid-cap.c  | 119 +++++++++++-------
.../media/platform/vivid/vivid-vid-common.c   |   8 +-
drivers/media/platform/vivid/vivid-vid-out.c  |   6 +
9 files changed, 245 insertions(+), 90 deletions(-)





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