[Intel-gfx] [PATCH 1/3] drm/i915: Skip cursor when writing PLANE_CHICKEN

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Cursor is not a universal plane and thus doesn't have the
PLANE_CHICKEN register. Skip it.

Fixes: c5de248484af ("drm/i915/dpt: Add a modparam to disable DPT via the chicken bit")
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_dpt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dpt.c b/drivers/gpu/drm/i915/display/intel_dpt.c
index 2bf5cce232d5..b8027392144d 100644
--- a/drivers/gpu/drm/i915/display/intel_dpt.c
+++ b/drivers/gpu/drm/i915/display/intel_dpt.c
@@ -324,10 +324,14 @@ void intel_dpt_configure(struct intel_crtc *crtc)
 		enum pipe pipe = crtc->pipe;
 		enum plane_id plane_id;
 
-		for_each_plane_id_on_crtc(crtc, plane_id)
+		for_each_plane_id_on_crtc(crtc, plane_id) {
+			if (plane_id == PLANE_CURSOR)
+				continue;
+
 			intel_de_rmw(i915, PLANE_CHICKEN(pipe, plane_id),
 				     PLANE_CHICKEN_DISABLE_DPT,
 				     i915->params.enable_dpt ? 0 : PLANE_CHICKEN_DISABLE_DPT);
+		}
 	} else if (DISPLAY_VER(i915) == 13) {
 		intel_de_rmw(i915, CHICKEN_MISC_2,
 			     CHICKEN_MISC_DISABLE_DPT,
-- 
2.39.2