Re: [PATCH] media: Kconfig: Make DVB_CORE=m possible when MEDIA_SUPPORT=y

[Hans Verkuil]

On 05/10/2021 12:51, Lecopzer Chen wrote:
> A case that we need VIDEO_DEV=y but DVB_CORE=m, and this doesn't
> work since DVB_CORE is default MEDIA_DIGITAL_TV_SUPPORT and then
> follows MEDIA_SUPPORT.
> 
> Change to tristate to make DVB_CORE=m possible when MEDIA_SUPPORT=y
> 
> Signed-off-by: Lecopzer Chen <lecopzer.chen@xxxxxxxxxxxx>
> ---
>  drivers/media/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
> index b07812657cee..c3baf92b4d02 100644
> --- a/drivers/media/Kconfig
> +++ b/drivers/media/Kconfig
> @@ -88,7 +88,7 @@ config MEDIA_ANALOG_TV_SUPPORT
>  		will disable support for them.
>  
>  config MEDIA_DIGITAL_TV_SUPPORT
> -	bool
> +	tristate
>  	prompt "Digital TV" if MEDIA_SUPPORT_FILTER
>  	default y if !MEDIA_SUPPORT_FILTER
>  	help
> 

I don't think this is the right approach.

I think the following patch would fix the issue, and it is also in line
with what config VIDEO_DEV does.

What do you think, Mauro?

Regards,

	Hans

Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
---
diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
index c3baf92b4d02..46f7b1f75630 100644
--- a/drivers/media/Kconfig
+++ b/drivers/media/Kconfig
@@ -179,8 +179,7 @@ config MEDIA_CONTROLLER
 #

 config DVB_CORE
-	tristate
-	depends on MEDIA_DIGITAL_TV_SUPPORT
+	tristate "DVB core"
 	depends on (I2C || I2C=n)
 	default MEDIA_DIGITAL_TV_SUPPORT
 	select CRC32