Re: [PATCH] media: docs-rst: Clarify duration of LP-11 mode

[Ian Arkver]

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@xxxxxxxxx>
> ---
>   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
>   ^^^^^^^^^^^^^^^^^^^^^^^^