Merge tag 'media/v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - remove sensor drivers that got converted from soc_camera

 - remaining soc_camera drivers got moved to staging

 - some documentation cleanups and improvements

 - the imx staging driver now supports imx7

 - the ov9640, mt9m001 and mt9m111 got converted from soc_camera

 - the vim2m driver now does what a m2m convert driver expects to do

 - epoll() fixes on media subsystems

 - several drivers fixes, typos, cleanups and improvements

* tag 'media/v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (346 commits)
  media: dvb/earth-pt1: fix wrong initialization for demod blocks
  media: vim2m: Address some coding style issues
  media: vim2m: don't use BUG()
  media: vim2m: speedup passthrough copy
  media: vim2m: add an horizontal scaler
  media: vim2m: don't accept YUYV anymore as output format
  media: vim2m: add vertical linear scaler
  media: vim2m: better handle cap/out buffers with different sizes
  media: vim2m: use different framesizes for bayer formats
  media: vim2m: add support for VIDIOC_ENUM_FRAMESIZES
  media: vim2m: ensure that width is multiple of two
  media: vim2m: improve debug messages
  media: vim2m: add bayer capture formats
  media: a few more typos at staging, pci, platform, radio and usb
  media: Documentation: fix several typos
  media: staging: fix several typos
  media: include: fix several typos
  media: common: fix several typos
  media: v4l2-core: fix several typos
  media: usb: fix several typos
  ...

1 files changed, 96 insertions, 0 deletions

diff --git a/Documentation/media/uapi/v4l/ext-ctrls-rf-tuner.rst b/Documentation/media/uapi/v4l/ext-ctrls-rf-tuner.rst
new file mode 100644
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+++ b/Documentation/media/uapi/v4l/ext-ctrls-rf-tuner.rst
@@ -0,0 +1,96 @@
+.. Permission is granted to copy, distribute and/or modify this
+.. document under the terms of the GNU Free Documentation License,
+.. Version 1.1 or any later version published by the Free Software
+.. Foundation, with no Invariant Sections, no Front-Cover Texts
+.. and no Back-Cover Texts. A copy of the license is included at
+.. Documentation/media/uapi/fdl-appendix.rst.
+..
+.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
+
+.. _rf-tuner-controls:
+
+**************************
+RF Tuner Control Reference
+**************************
+
+The RF Tuner (RF_TUNER) class includes controls for common features of
+devices having RF tuner.
+
+In this context, RF tuner is radio receiver circuit between antenna and
+demodulator. It receives radio frequency (RF) from the antenna and
+converts that received signal to lower intermediate frequency (IF) or
+baseband frequency (BB). Tuners that could do baseband output are often
+called Zero-IF tuners. Older tuners were typically simple PLL tuners
+inside a metal box, while newer ones are highly integrated chips
+without a metal box "silicon tuners". These controls are mostly
+applicable for new feature rich silicon tuners, just because older
+tuners does not have much adjustable features.
+
+For more information about RF tuners see
+`Tuner (radio) <http://en.wikipedia.org/wiki/Tuner_%28radio%29>`__
+and `RF front end <http://en.wikipedia.org/wiki/RF_front_end>`__
+from Wikipedia.
+
+
+.. _rf-tuner-control-id:
+
+RF_TUNER Control IDs
+====================
+
+``V4L2_CID_RF_TUNER_CLASS (class)``
+    The RF_TUNER class descriptor. Calling
+    :ref:`VIDIOC_QUERYCTRL` for this control will
+    return a description of this control class.
+
+``V4L2_CID_RF_TUNER_BANDWIDTH_AUTO (boolean)``
+    Enables/disables tuner radio channel bandwidth configuration. In
+    automatic mode bandwidth configuration is performed by the driver.
+
+``V4L2_CID_RF_TUNER_BANDWIDTH (integer)``
+    Filter(s) on tuner signal path are used to filter signal according
+    to receiving party needs. Driver configures filters to fulfill
+    desired bandwidth requirement. Used when
+    V4L2_CID_RF_TUNER_BANDWIDTH_AUTO is not set. Unit is in Hz. The
+    range and step are driver-specific.
+
+``V4L2_CID_RF_TUNER_LNA_GAIN_AUTO (boolean)``
+    Enables/disables LNA automatic gain control (AGC)
+
+``V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO (boolean)``
+    Enables/disables mixer automatic gain control (AGC)
+
+``V4L2_CID_RF_TUNER_IF_GAIN_AUTO (boolean)``
+    Enables/disables IF automatic gain control (AGC)
+
+``V4L2_CID_RF_TUNER_RF_GAIN (integer)``
+    The RF amplifier is the very first amplifier on the receiver signal
+    path, just right after the antenna input. The difference between the
+    LNA gain and the RF gain in this document is that the LNA gain is
+    integrated in the tuner chip while the RF gain is a separate chip.
+    There may be both RF and LNA gain controls in the same device. The
+    range and step are driver-specific.
+
+``V4L2_CID_RF_TUNER_LNA_GAIN (integer)``
+    LNA (low noise amplifier) gain is first gain stage on the RF tuner
+    signal path. It is located very close to tuner antenna input. Used
+    when ``V4L2_CID_RF_TUNER_LNA_GAIN_AUTO`` is not set. See
+    ``V4L2_CID_RF_TUNER_RF_GAIN`` to understand how RF gain and LNA gain
+    differs from the each others. The range and step are
+    driver-specific.
+
+``V4L2_CID_RF_TUNER_MIXER_GAIN (integer)``
+    Mixer gain is second gain stage on the RF tuner signal path. It is
+    located inside mixer block, where RF signal is down-converted by the
+    mixer. Used when ``V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO`` is not set.
+    The range and step are driver-specific.
+
+``V4L2_CID_RF_TUNER_IF_GAIN (integer)``
+    IF gain is last gain stage on the RF tuner signal path. It is
+    located on output of RF tuner. It controls signal level of
+    intermediate frequency output or baseband output. Used when
+    ``V4L2_CID_RF_TUNER_IF_GAIN_AUTO`` is not set. The range and step
+    are driver-specific.
+
+``V4L2_CID_RF_TUNER_PLL_LOCK (boolean)``
+    Is synthesizer PLL locked? RF tuner is receiving given frequency
+    when that control is set. This is a read-only control.