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

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@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@kernel.org