linux-kernel - Re: [PATCH 1/2] [media] am437x: VIDEO_AM437X_VPFE should depend on HAS

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Date:	Thu, 12 Feb 2015 14:30:58 +0000
From:	"Lad, Prabhakar" <prabhakar.csengg@...il.com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	Hans Verkuil <hans.verkuil@...co.com>,
	Arnd Bergmann <arnd@...db.de>,
	linux-media <linux-media@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] [media] am437x: VIDEO_AM437X_VPFE should depend on HAS_DMA

On Thu, Feb 12, 2015 at 2:11 PM, Geert Uytterhoeven
<geert@...ux-m68k.org> wrote:
> If NO_DMA=y:
>
>     warning: (VIDEO_AM437X_VPFE && VIDEO_DM365_VPFE && VIDEO_DT3155 && VIDEO_OMAP4) selects VIDEOBUF2_DMA_CONTIG which has unmet direct dependencies (MEDIA_SUPPORT && HAS_DMA)
>
>     drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_mmap’:
>     drivers/media/v4l2-core/videobuf2-dma-contig.c:207: error: implicit declaration of function ‘dma_mmap_coherent’
>     drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_get_base_sgt’:
>     drivers/media/v4l2-core/videobuf2-dma-contig.c:390: error: implicit declaration of function ‘dma_get_sgtable’
>
> VIDEO_AM437X_VPFE selects VIDEOBUF2_DMA_CONTIG, which bypasses its
> dependency on HAS_DMA.  Make VIDEO_AM437X_VPFE depend on HAS_DMA to fix
> this.
>
> Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Acked-by: Lad, Prabhakar <prabhakar.csengg@...il.com>

Regards,
--Prabhakar Lad

> ---
>  drivers/media/platform/am437x/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/media/platform/am437x/Kconfig b/drivers/media/platform/am437x/Kconfig
> index 7b023a76e32ebabc..42d9c186710a6423 100644
> --- a/drivers/media/platform/am437x/Kconfig
> +++ b/drivers/media/platform/am437x/Kconfig
> @@ -1,6 +1,6 @@
>  config VIDEO_AM437X_VPFE
>         tristate "TI AM437x VPFE video capture driver"
> -       depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
> +       depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && HAS_DMA
>         depends on SOC_AM43XX || COMPILE_TEST
>         select VIDEOBUF2_DMA_CONTIG
>         help
> --
> 1.9.1
>
> --
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