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, 15 deletions

diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
index dc0c065f8d39..97e9d614700f 100644
--- a/drivers/gpu/drm/udl/udl_fb.c
+++ b/drivers/gpu/drm/udl/udl_fb.c
@@ -393,19 +393,6 @@ static struct fb_ops udlfb_ops = {
         .fb_release = udl_fb_release,
 };
 
-static void udl_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
-                           u16 blue, int regno)
-{
-}
-
-static void udl_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
-                             u16 *blue, int regno)
-{
-        *red = 0;
-        *green = 0;
-        *blue = 0;
-}
-
 static int udl_user_framebuffer_dirty(struct drm_framebuffer *fb,
                                       struct drm_file *file,
                                       unsigned flags, unsigned color,
@@ -558,8 +545,6 @@ out:
 }
 
 static struct drm_fb_helper_funcs udl_fb_helper_funcs = {
-        .gamma_set = udl_crtc_fb_gamma_set,
-        .gamma_get = udl_crtc_fb_gamma_get,
         .fb_probe = udlfb_create,
 };