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SubjectRe: [PATCH] media: Kconfig: Don't expose API options
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On Tue, 2020-04-14 at 15:21 +0200, Mauro Carvalho Chehab wrote:
> Em Tue, 14 Apr 2020 10:02:10 -0300
> Ezequiel Garcia <ezequiel@collabora.com> escreveu:
>
> > There is no need to expose API options; instead,
> > drivers that support a given API are expected to just select it.
> >
> > Happily, this is currently the case, so simply stop
> > exposing the options.
> >
> > Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
> > ---
> > drivers/media/Kconfig | 2 +-
> > drivers/media/mc/Kconfig | 3 +--
> > drivers/media/v4l2-core/Kconfig | 2 +-
> > 3 files changed, 3 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
> > index a8def1591352..eef4c6761ffb 100644
> > --- a/drivers/media/Kconfig
> > +++ b/drivers/media/Kconfig
> > @@ -173,7 +173,7 @@ config VIDEO_DEV
> > radio devices and by some input devices.
> >
> > config MEDIA_CONTROLLER
> > - bool "Media Controller API"
> > + bool
>
> This is not true here... non-embedded drivers like DVB and UVC can work
> with or without the media controller. For them, the API is experimental.
>

Fair enough.

> > default MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_PLATFORM_SUPPORT
> > help
> > Enable the media controller API used to query media devices internal
> > diff --git a/drivers/media/mc/Kconfig b/drivers/media/mc/Kconfig
> > index 002a918c4c75..0cdf885ce24d 100644
> > --- a/drivers/media/mc/Kconfig
> > +++ b/drivers/media/mc/Kconfig
> > @@ -2,7 +2,6 @@
> >
> > #
> > # Media controller
> > -# Selectable only for webcam/grabbers, as other drivers don't use it
> > #
> >
> > config MEDIA_CONTROLLER_DVB
> > @@ -14,7 +13,7 @@ config MEDIA_CONTROLLER_DVB
> > This is currently experimental.
> >
> > config MEDIA_CONTROLLER_REQUEST_API
> > - bool "Enable Media controller Request API (EXPERIMENTAL)"
> > + bool
>
> This sounds OK.
>
> The only reason why I didn't make this change is because of the
> "EXPERIMENTAL" warning.
>
> At least while this API is considered experimental, it sounds
> wise to have a warning.
>
> Perhaps we could apply this hunk, and add something like
> this to media/Kconfig:
>
> comment "Please notice that the enabled Media controller Request API is EXPERIMENTAL"
> depends on MEDIA_CONTROLLER_REQUEST_API
>

Let me post a separate patch, since I believe we also
need to select the request API on the test drivers
that use it.

Thanks,
Ezequiel

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