drm/fourcc: Add macros to determine the modifier vendor

When working with framebuffer modifiers, it can be useful to extract the
vendor identifier or check a modifier against a given vendor identifier.
Add one macro that extracts the vendor identifier and a helper to check
a modifier against a given vendor identifier.

Reviewed-by: Daniel Vetter <[email protected]>
Acked-by: Daniel Stone <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

0 files changed, 0 insertions, 0 deletions