[PATCH] drm: rcar-du: Fix build error

[Laurent Pinchart]

Hi Daniel,

Thank you for the patch.

On Mon, May 18, 2020 at 10:16:46PM +0200, Daniel Gomez wrote:
> Select DRM_KMS_HELPER dependency.
> 
> Build error when DRM_KMS_HELPER is not selected:
> 
> drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xd48): undefined reference to `drm_atomic_helper_bridge_duplicate_state'
> drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xd50): undefined reference to `drm_atomic_helper_bridge_destroy_state'
> drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xd70): undefined reference to `drm_atomic_helper_bridge_reset'
> drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xdc8): undefined reference to `drm_atomic_helper_connector_reset'
> drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xde0): undefined reference to `drm_helper_probe_single_connector_modes'
> drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xe08): undefined reference to `drm_atomic_helper_connector_duplicate_state'
> drivers/gpu/drm/rcar-du/rcar_lvds.o:(.rodata+0xe10): undefined reference to `drm_atomic_helper_connector_destroy_state'
> 
> Signed-off-by: Daniel Gomez <dagmcr at gmail.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>

and taken in my tree for v5.9. If you think it should get in v5.8 as a
fix, I can do so as well, could you then provide a Fixes: tag ?

> ---
>  drivers/gpu/drm/rcar-du/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/rcar-du/Kconfig b/drivers/gpu/drm/rcar-du/Kconfig
> index 0919f1f159a4..f65d1489dc50 100644
> --- a/drivers/gpu/drm/rcar-du/Kconfig
> +++ b/drivers/gpu/drm/rcar-du/Kconfig
> @@ -31,6 +31,7 @@ config DRM_RCAR_DW_HDMI
>  config DRM_RCAR_LVDS
>  	tristate "R-Car DU LVDS Encoder Support"
>  	depends on DRM && DRM_BRIDGE && OF
> +	select DRM_KMS_HELPER
>  	select DRM_PANEL
>  	select OF_FLATTREE
>  	select OF_OVERLAY

-- 
Regards,

Laurent Pinchart