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Date:   Wed, 5 May 2021 19:18:58 +0200
From:   Michal =?iso-8859-1?Q?Such=E1nek?= <msuchanek@suse.de>
To:     Adrien Grassein <adrien.grassein@gmail.com>
Cc:     a.hajda@samsung.com, narmstrong@baylibre.com,
        robert.foss@linaro.org, Laurent.pinchart@ideasonboard.com,
        jonas@kwiboo.se, jernej.skrabec@siol.net, airlied@linux.ie,
        daniel@ffwll.ch, dri-devel@lists.freedesktop.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH] drm/bridge: fix LONTIUM_LT8912B dependencies
Message-ID: <20210505171858.GC6564@kitsune.suse.cz>
References: <20210504220207.4004511-1-adrien.grassein@gmail.com>
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On Wed, May 05, 2021 at 12:02:07AM +0200, Adrien Grassein wrote:
> LONTIUM_LT8912B uses "drm_display_mode_to_videomode" from
> DRM framework that needs VIDEOMODE_HELPERS to be enabled.
> 
> Fixes: 30e2ae943c26 ("drm/bridge: Introduce LT8912B DSI to HDMI bridge")
> Reported-by: Michal Such?nek <msuchanek@suse.de>
> Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com>
> ---
>  drivers/gpu/drm/bridge/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
> index 400193e38d29..70bcceaae9bf 100644
> --- a/drivers/gpu/drm/bridge/Kconfig
> +++ b/drivers/gpu/drm/bridge/Kconfig
> @@ -68,6 +68,7 @@ config DRM_LONTIUM_LT8912B
>  	select DRM_KMS_HELPER
>  	select DRM_MIPI_DSI
>  	select REGMAP_I2C
> +	select VIDEOMODE_HELPERS
>  	help
>  	  Driver for Lontium LT8912B DSI to HDMI bridge
>  	  chip driver.

Indeed, this fixes the problem.

Thanks

Michal