linux-kernel - Re: [PATCH] staging: media: imx: drop dependency on ipuv3

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Date:   Mon, 09 Nov 2020 10:22:55 +0100
From:   Philipp Zabel <p.zabel@...gutronix.de>
To:     Martin Kepplinger <martin.kepplinger@...i.sm>,
        rogerio.silva@....com, slongerbeam@...il.com, mchehab@...nel.org,
        shawnguo@...nel.org, festevam@...il.com
Cc:     iain.galloway@....com, kernel@...i.sm, kernel@...gutronix.de,
        linux-imx@....com, linux-media@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: media: imx: drop dependency on ipuv3

Hi Martin,

On Mon, 2020-11-09 at 10:13 +0100, Martin Kepplinger wrote:
> As described in NXPs' linux tree, the imx8m SoC includes the same
> CSI bridge hardware that is part of imx7d. We should be able to
> use the "fsl,imx7-csi" driver for imx8m directly.
> 
> Since ipuv3 is not relevant for imx8m, drop the build dependency
> for it.
> 
> Signed-off-by: Martin Kepplinger <martin.kepplinger@...i.sm>
> ---
>  drivers/staging/media/imx/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/media/imx/Kconfig b/drivers/staging/media/imx/Kconfig
> index f555aac8a9d5..98272fd92fe4 100644
> --- a/drivers/staging/media/imx/Kconfig
> +++ b/drivers/staging/media/imx/Kconfig
> @@ -2,7 +2,7 @@
>  config VIDEO_IMX_MEDIA
>  	tristate "i.MX5/6 V4L2 media core driver"

VIDEO_IMX_MEDIA builds imx6-media, which does depend on IMX_IPUV3_CORE.
You only want imx-media-common. I think we have to split the
configuration option in two.

>  	depends on ARCH_MXC || COMPILE_TEST
> -	depends on VIDEO_V4L2 && IMX_IPUV3_CORE
> +	depends on VIDEO_V4L2
>  	select MEDIA_CONTROLLER
>  	select VIDEO_V4L2_SUBDEV_API
>  	depends on HAS_DMA

regards
Philipp