Re: [PATCH v2] ARM: exynos_defconfig: Enable Samsung media platform drivers as modules

From: Javier Martinez Canillas
Date: Thu Apr 21 2016 - 10:40:03 EST

[adding Seung-Woo Kim to cc]

Hello Krzysztof,

On 03/28/2016 09:25 PM, Krzysztof Kozlowski wrote:
> On 29.03.2016 00:15, Javier Martinez Canillas wrote:
>> Tobias mentioned on IRC that the exynos4-is driver conflicts with the
>> Exynos DRM driver since both exynos_drm_fimc and exynos-fimc-is use
>> the FIMC block.
>> So I think we should just discard $SUBJECT and instead add a Kconfig
>> check to not allow both drivers to be built as suggested by Tobias.

I posted the Kconfig change [0] but Seung-Woo explained [1] to me that
there are several instances of the FIMC and device nodes can use the
samsung,{isp,lcd}-wb properties to choose which instance to use.

>> Like is the case for the other components (G2D, GSC, Mixer, etc).
> Roger that.

So enabling both the V4L2 and DRM drivers is a valid configuration and
$SUBJECT should be picked after all. Sorry for the confusion.

I'll re-post the patch and also include changes for multi_v7_defconfig
in the same series.

> BR,
> Krzysztof


Best regards,
Javier Martinez Canillas
Open Source Group
Samsung Research America