linux-kernel - Re: [PATCH 2/5] drm: mediatek: add CONFIG

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Date:	Thu, 19 May 2016 16:55:53 +0200
From:	Matthias Brugger <matthias.bgg@...il.com>
To:	Arnd Bergmann <arnd@...db.de>, David Airlie <airlied@...ux.ie>
Cc:	Russell King <rmk+kernel@...linux.org.uk>,
	Inki Dae <inki.dae@...sung.com>,
	Joonyoung Shim <jy0922.shim@...sung.com>,
	Seung-Woo Kim <sw0312.kim@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Kukjin Kim <kgene@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Ben Skeggs <bskeggs@...hat.com>,
	Alex Deucher <alexander.deucher@....com>,
	Christian König <christian.koenig@....com>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	linux-mediatek@...ts.infradead.org, nouveau@...ts.freedesktop.org
Subject: Re: [PATCH 2/5] drm: mediatek: add CONFIG_OF dependency



On 18/05/16 18:07, Arnd Bergmann wrote:
> The mediatek DRM driver can be configured for compile testing with
> CONFIG_OF disabled, but then fails to link:
>
> drivers/gpu/built-in.o: In function `mtk_drm_bind':
> analogix_dp_reg.c:(.text+0x52888): undefined reference to `of_find_device_by_node'
> analogix_dp_reg.c:(.text+0x52930): undefined reference to `of_find_device_by_node'
>
> This adds an explicit Kconfig dependency.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>   drivers/gpu/drm/mediatek/Kconfig | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/mediatek/Kconfig b/drivers/gpu/drm/mediatek/Kconfig
> index 545973f6b743..67183e26971d 100644
> --- a/drivers/gpu/drm/mediatek/Kconfig
> +++ b/drivers/gpu/drm/mediatek/Kconfig
> @@ -3,6 +3,7 @@ config DRM_MEDIATEK
>   	depends on DRM
>   	depends on ARCH_MEDIATEK || (ARM && COMPILE_TEST)
>   	depends on COMMON_CLK
> +	depends on OF
>   	select DRM_GEM_CMA_HELPER
>   	select DRM_KMS_HELPER
>   	select DRM_MIPI_DSI
>

Reviewed-by: Matthias Brugger <matthias.bgg@...il.com>