drm/i915: Only set CURSOR_PIPE_CSC_ENABLE when cursor is enabled

It seems cleaner if we keep CURCNTR at 0 when the cursor is disabled,
so don't set the CURSOR_PIPE_CSC_ENABLE bit unless the cursor is
enabled.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index fbfdaf4..007f465 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8301,9 +8301,10 @@ static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
                                return;
                }
                cntl |= pipe << 28; /* Connect to correct pipe */
+
+               if (IS_HASWELL(dev) || IS_BROADWELL(dev))
+                       cntl |= CURSOR_PIPE_CSC_ENABLE;
        }
-       if (IS_HASWELL(dev) || IS_BROADWELL(dev))
-               cntl |= CURSOR_PIPE_CSC_ENABLE;
 
        if (intel_crtc->cursor_cntl != cntl) {
                I915_WRITE(CURCNTR(pipe), cntl);