[2/4] drm/armada: Hide fbdev support behind config option

[Sui Jingfeng]

Reviewed-by: Sui Jingfeng <suijingfeng at loongson.cn>

On 2023/3/30 15:30, Thomas Zimmermann wrote:
> Only build armada's fbdev emulation if CONFIG_DRM_FBDEV_EMULATION
> has been enabled. No functional changes, but allows to build armada
> without fbdev.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
> ---
>   drivers/gpu/drm/armada/Makefile     |  3 ++-
>   drivers/gpu/drm/armada/armada_drm.h | 14 ++++++++++++--
>   2 files changed, 14 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/armada/Makefile b/drivers/gpu/drm/armada/Makefile
> index 9bc3c3213724..dc75a7db9ed3 100644
> --- a/drivers/gpu/drm/armada/Makefile
> +++ b/drivers/gpu/drm/armada/Makefile
> @@ -1,7 +1,8 @@
>   # SPDX-License-Identifier: GPL-2.0
> -armada-y	:= armada_crtc.o armada_drv.o armada_fb.o armada_fbdev.o \
> +armada-y	:= armada_crtc.o armada_drv.o armada_fb.o \
>   		   armada_gem.o armada_overlay.o armada_plane.o armada_trace.o
>   armada-y	+= armada_510.o
>   armada-$(CONFIG_DEBUG_FS) += armada_debugfs.o
> +armada-$(CONFIG_DRM_FBDEV_EMULATION) += armada_fbdev.o
>   
>   obj-$(CONFIG_DRM_ARMADA) := armada.o
> diff --git a/drivers/gpu/drm/armada/armada_drm.h b/drivers/gpu/drm/armada/armada_drm.h
> index 6a5a87932576..1475146b1c47 100644
> --- a/drivers/gpu/drm/armada/armada_drm.h
> +++ b/drivers/gpu/drm/armada/armada_drm.h
> @@ -75,8 +75,18 @@ struct armada_private {
>   
>   #define drm_to_armada_dev(dev) container_of(dev, struct armada_private, drm)
>   
> -int armada_fbdev_init(struct drm_device *);
> -void armada_fbdev_fini(struct drm_device *);
> +#if defined(CONFIG_DRM_FBDEV_EMULATION)
> +int armada_fbdev_init(struct drm_device *dev);
> +void armada_fbdev_fini(struct drm_device *dev);
> +#else
> +static inline int armada_fbdev_init(struct drm_device *dev)
> +{
> +	return 0;
> +}
> +
> +static inline void armada_fbdev_fini(struct drm_device *dev)
> +{ }
> +#endif
>   
>   int armada_overlay_plane_create(struct drm_device *, unsigned long);
>