mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

media: Documentation: LP-11 and LP-111 are states, not modes 

LP-11 and LP-111 are CSI-2 bus states, not modes. Fix this.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Sakari Ailus 2023-10-17 13:33:59 +03:00 committed by Hans Verkuil
parent cff18d8f8b
commit 16be18d71c
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
Documentation/driver-api/media/tx-rx.rst
View File

@ -91,8 +91,8 @@ where
pixel rate on the camera sensor's pixel array which is indicated by the
:ref:`V4L2_CID_PIXEL_RATE <v4l2-cid-pixel-rate>` control.
LP-11 and LP-111 modes
^^^^^^^^^^^^^^^^^^^^^^
LP-11 and LP-111 states
^^^^^^^^^^^^^^^^^^^^^^^
As part of transitioning to high speed mode, a CSI-2 transmitter typically
briefly sets the bus to LP-11 or LP-111 state, depending on the PHY. This period
@ -106,7 +106,7 @@ in software, especially when there is no interrupt telling something is
happening.
One way to address this is to configure the transmitter side explicitly to LP-11
or LP-111 mode, which requires support from the transmitter hardware. This is
or LP-111 state, which requires support from the transmitter hardware. This is
not universally available. Many devices return to this state once streaming is
stopped while the state after power-on is LP-00 or LP-000.
@ -117,11 +117,11 @@ transitioning to streaming state, but not yet start streaming. Similarly, the
to call ``.post_streamoff()`` for each successful call of ``.pre_streamon()``.
In the context of CSI-2, the ``.pre_streamon()`` callback is used to transition
the transmitter to the LP-11 or LP-111 mode. This also requires powering on the
the transmitter to the LP-11 or LP-111 state. This also requires powering on the
device, so this should be only done when it is needed.
Receiver drivers that do not need explicit LP-11 or LP-111 mode setup are waived
from calling the two callbacks.
Receiver drivers that do not need explicit LP-11 or LP-111 state setup are
waived from calling the two callbacks.
Stopping the transmitter
^^^^^^^^^^^^^^^^^^^^^^^^