drm/i915: Disable plane gamma in SKL+ sprite planes

The plane gamma tables are never programmed, so just disable it, like it
is done for the primary plane.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1485429865-10687-2-git-send-email-ander.conselvan.de.oliveira@intel.com

diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 9ef54688872a86a70ab020a64b7209e040de70e0..c05545f64f818972349afb71e4a52804f37dda5a 100644 (file)
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -226,6 +226,7 @@ skl_update_plane(struct drm_plane *drm_plane,
        plane_ctl |= skl_plane_ctl_format(fb->format->format);
        plane_ctl |= skl_plane_ctl_tiling(fb->modifier);
 
+       plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE;
        plane_ctl |= skl_plane_ctl_rotation(rotation);
 
        if (key->flags) {