Em Mon, 26 Nov 2018 18:38:44 +0200
Priit Laes <pl...@plaes.org> escreveu:
> Currently there is no easy way to enable mem2mem based video
> processor drivers (cedrus for example). Simplify this by adding
> separate category to media support.
>
> Signed-off-by: Priit Laes <pl...@plaes.org>
> ---
> drivers/media/Kconfig | 12 ++++++++++--
> 1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
> index 8add62a18293..f2a773896dcf 100644
> --- a/drivers/media/Kconfig
> +++ b/drivers/media/Kconfig
> @@ -56,6 +56,14 @@ config MEDIA_DIGITAL_TV_SUPPORT
> Say Y when you have a board with digital support or a board with
> hybrid digital TV and analog TV.
>
> +config MEDIA_MEM2MEM_SUPPORT
> + bool "Mem2mem devices (stateless media decoders/encoders support)"
> + ---help---
> + Enable support for mem2mem / stateless media decoders/encoders.
> +
> + Say Y when you have a system with stateless media encoder/decoder
> + support.
> +
> config MEDIA_RADIO_SUPPORT
> bool "AM/FM radio receivers/transmitters support"
> ---help---
> @@ -95,7 +103,7 @@ source "drivers/media/cec/Kconfig"
>
> config MEDIA_CONTROLLER
> bool "Media Controller API"
> - depends on MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT ||
> MEDIA_DIGITAL_TV_SUPPORT
> + depends on MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT ||
> MEDIA_DIGITAL_TV_SUPPORT || MEDIA_MEM2MEM_SUPPORT
> ---help---
> Enable the media controller API used to query media devices internal
> topology and configure it dynamically.
> @@ -118,7 +126,7 @@ config MEDIA_CONTROLLER_DVB
> config VIDEO_DEV
> tristate
> depends on MEDIA_SUPPORT
> - depends on MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT ||
> MEDIA_RADIO_SUPPORT || MEDIA_SDR_SUPPORT
> + depends on MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT ||
> MEDIA_RADIO_SUPPORT || MEDIA_SDR_SUPPORT || MEDIA_MEM2MEM_SUPPORT
> default y
>
> config VIDEO_V4L2_SUBDEV_API
Hmm... this patch looks incomplete. I mean, the main goal of those
MEDIA_*_SUPPORT is to make simpler for the users to select a
subset of the drivers. Those options actually make visible
the corresponding entries for pci/usb/... drivers. So,
for example, drivers/media/usb/Kconfig contains:
if MEDIA_CAMERA_SUPPORT
comment "Webcam devices"
source "drivers/media/usb/uvc/Kconfig"
source "drivers/media/usb/gspca/Kconfig"
source "drivers/media/usb/pwc/Kconfig"
source "drivers/media/usb/cpia2/Kconfig"
source "drivers/media/usb/zr364xx/Kconfig"
source "drivers/media/usb/stkwebcam/Kconfig"
source "drivers/media/usb/s2255/Kconfig"
source "drivers/media/usb/usbtv/Kconfig"
endif
If we'll be adding it, I would expect a corresponding change at
drivers/media/platform/Kconfig.
Thanks,
Mauro
