On Fri, Oct 29, 2021 at 02:02:38PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
>
> My previous patch correctly addressed the possible link failure, but as
> Jani points out, the dependency is now stricter than it needs to be.
>
> Change it again, to allow DRM_FBDEV_EMULATION to be used when
> DRM_KMS_HELPER and FB are both loadable modules and DRM is linked into
> the kernel.
>
> As a side-effect, the option is now only visible when at least one DRM
> driver makes use of DRM_KMS_HELPER. This is better, because the option
> has no effect otherwise.
>
> Fixes: 606b102876e3 ("drm: fb_helper: fix CONFIG_FB dependency")
> Suggested-by: Acked-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Queued up for the merge window, thanks for the patch.
-Daniel
> ---
> drivers/gpu/drm/Kconfig | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
> index c08860db2520..d2e6d8ce5000 100644
> --- a/drivers/gpu/drm/Kconfig
> +++ b/drivers/gpu/drm/Kconfig
> @@ -117,9 +117,8 @@ config DRM_DEBUG_MODESET_LOCK
>
> config DRM_FBDEV_EMULATION
> bool "Enable legacy fbdev support for your modesetting driver"
> - depends on DRM
> - depends on FB=y || FB=DRM
> - select DRM_KMS_HELPER
> + depends on DRM_KMS_HELPER
> + depends on FB=y || FB=DRM_KMS_HELPER
> select FB_CFB_FILLRECT
> select FB_CFB_COPYAREA
> select FB_CFB_IMAGEBLIT
> --
> 2.29.2
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
