Messages in this thread | | | Subject | Re: [PATCH] media: docs-rst: Clarify duration of LP-11 mode | From | Ian Arkver <> | Date | Mon, 12 Aug 2019 09:53:33 +0100 |
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Hi Steve,
On 11/08/2019 18:36, Steve Longerbeam wrote: > Add a sentence that makes it more clear when the CSI-2 transmitter > must, if possible, exit LP-11 mode. That is, maintain LP-11 mode > until stream on, at which point the transmitter activates the clock > lane and transition to HS mode. > > Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> > --- > Documentation/media/kapi/csi2.rst | 10 +++++++--- > 1 file changed, 7 insertions(+), 3 deletions(-) > > diff --git a/Documentation/media/kapi/csi2.rst b/Documentation/media/kapi/csi2.rst > index a7e75e2eba85..6cd1d4b0df17 100644 > --- a/Documentation/media/kapi/csi2.rst > +++ b/Documentation/media/kapi/csi2.rst > @@ -49,9 +49,13 @@ where > > The transmitter drivers must, if possible, configure the CSI-2 > transmitter to *LP-11 mode* whenever the transmitter is powered on but > -not active. Some transmitters do this automatically but some have to > -be explicitly programmed to do so, and some are unable to do so > -altogether due to hardware constraints. > +not active, and maintain *LP-11 mode* until stream on. Only until
s/until/at/ perhaps?
Regards, Ian > +stream on should the transmitter activate the clock on the clock lane > +and transition to *HS mode*. > + > +Some transmitters do this automatically but some have to be explicitly > +programmed to do so, and some are unable to do so altogether due to > +hardware constraints. > > Stopping the transmitter > ^^^^^^^^^^^^^^^^^^^^^^^^ >
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