[Intel-gfx] [PATCH 4/7] drm/i915: Fix wrongly populated plane possible_crtcs bit mask

[Anshuman Gupta]

As a disabled pipe in pipe_mask is not having a valid intel crtc,
driver wrongly populates the possible_crtcs mask while initializing
the plane for a CRTC. Fixing up the plane possible_crtc mask.

changes since RFC:
- Simplify the possible_crtcs initialization. [Ville]

Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 12 ++++++++++++
 drivers/gpu/drm/i915/display/intel_sprite.c  |  2 --
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index cf36c3d0f8fc..7c51eb3faeb3 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -16407,6 +16407,17 @@ static void intel_crtc_free(struct intel_crtc *crtc)
 	kfree(crtc);
 }
 
+static void intel_plane_possible_crtc_init(struct drm_i915_private *dev_priv)
+{
+	struct intel_crtc *crtc;
+	struct intel_plane *plane;
+
+	for_each_intel_plane(&dev_priv->drm, plane) {
+		crtc = intel_get_crtc_for_pipe(dev_priv, plane->pipe);
+		plane->base.possible_crtcs = drm_crtc_mask(&crtc->base);
+	}
+}
+
 static int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe)
 {
 	struct intel_plane *primary, *cursor;
@@ -17546,6 +17557,7 @@ int intel_modeset_init(struct drm_i915_private *i915)
 		}
 	}
 
+	intel_plane_possible_crtc_init(i915);
 	intel_shared_dpll_init(dev);
 	intel_update_fdi_pll_freq(i915);
 
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
index fca77ec1e0dd..4a5b192678bf 100644
--- a/drivers/gpu/drm/i915/display/intel_sprite.c
+++ b/drivers/gpu/drm/i915/display/intel_sprite.c
@@ -3023,8 +3023,6 @@ skl_universal_plane_create(struct drm_i915_private *dev_priv,
 	else
 		plane_type = DRM_PLANE_TYPE_OVERLAY;
 
-	possible_crtcs = BIT(pipe);
-
 	ret = drm_universal_plane_init(&dev_priv->drm, &plane->base,
 				       possible_crtcs, plane_funcs,
 				       formats, num_formats, modifiers,
-- 
2.24.0