[PATCH 3/3] drm/vc4: Add specific compatible strings for Cygnus.

[Rob Herring]

On Tue, Apr 18, 2017 at 12:11:57PM -0700, Eric Anholt wrote:
> Cygnus has V3D 2.6 instead of 2.1, and doesn't use the VC4 display
> modules.  The V3D can be uniquely identified by the IDENT[01]
> registers, and there's nothing to key off of for the display change
> other than the lack of DT nodes for the display components, but it's
> convention to have new compatible strings anyway.
> 
> Signed-off-by: Eric Anholt <eric at anholt.net>
> ---
>  Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt | 4 ++--
>  drivers/gpu/drm/vc4/vc4_drv.c                              | 1 +
>  drivers/gpu/drm/vc4/vc4_v3d.c                              | 1 +
>  3 files changed, 4 insertions(+), 2 deletions(-)

Acked-by: Rob Herring <robh at kernel.org>