drm/nouveau/kms/nv50-: disable input lut harder

Under some circumstances, it could be left enabled when it shouldn't be.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.c b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
index 5a8af9a..0aaa7e0 100644 (file)
--- a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
@@ -336,6 +336,8 @@ nv50_wndw_atomic_check_lut(struct nv50_wndw *wndw,
                asyw->xlut.handle = wndw->wndw.vram.handle;
                asyw->xlut.i.buffer = !asyw->xlut.i.buffer;
                asyw->set.xlut = true;
+       } else {
+               asyw->clr.xlut = armw->xlut.handle != 0;
        }
 
        /* Handle setting base SET_OUTPUT_LUT_LO_ENABLE_USE_CORE_LUT. */