drm: Drop all the stub gamma_get, gamma_set, load_lut functions from drivers

Many of the drivers didn't implement palette/gamma handling, but were forced
to provide stubs for the hooks to avoid drm_fb_helper from oopsing. Now that
the hooks are optional, we can eliminate all the stubs.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@gmail.com>

1 files changed, 0 insertions, 5 deletions

diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
index e96d2349bd54..2ae1eb7d1635 100644
--- a/drivers/gpu/drm/udl/udl_modeset.c
+++ b/drivers/gpu/drm/udl/udl_modeset.c
@@ -363,10 +363,6 @@ static void udl_crtc_destroy(struct drm_crtc *crtc)
         kfree(crtc);
 }
 
-static void udl_load_lut(struct drm_crtc *crtc)
-{
-}
-
 static void udl_crtc_prepare(struct drm_crtc *crtc)
 {
 }
@@ -383,7 +379,6 @@ static struct drm_crtc_helper_funcs udl_helper_funcs = {
         .prepare = udl_crtc_prepare,
         .commit = udl_crtc_commit,
         .disable = udl_crtc_disable,
-        .load_lut = udl_load_lut,
 };
 
 static const struct drm_crtc_funcs udl_crtc_funcs = {