skl_plane_has_planar is hard to read, simplify the logic by checking for
support in the order of platform, pipe and plane.

No change in functionality intended.

Cc: Ville Syrjälä <[email protected]>
Signed-off-by: Dhinakaran Pandiyan <[email protected]>
---
 drivers/gpu/drm/i915/intel_display.c | 27 +++++++++------------------
 1 file changed, 9 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index 30fdfd1a3037..7e18bd8b21b8 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13622,24 +13622,15 @@ static bool skl_plane_has_fbc(struct drm_i915_private 
*dev_priv,
 bool skl_plane_has_planar(struct drm_i915_private *dev_priv,
                          enum pipe pipe, enum plane_id plane_id)
 {
-       if (plane_id == PLANE_PRIMARY) {
-               if (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv))
-                       return false;
-               else if ((INTEL_GEN(dev_priv) == 9 && pipe == PIPE_C) &&
-                        !IS_GEMINILAKE(dev_priv))
-                       return false;
-       } else if (plane_id >= PLANE_SPRITE0) {
-               if (plane_id == PLANE_CURSOR)
-                       return false;
-               if (IS_GEMINILAKE(dev_priv) || INTEL_GEN(dev_priv) == 10) {
-                       if (plane_id != PLANE_SPRITE0)
-                               return false;
-               } else {
-                       if (plane_id != PLANE_SPRITE0 || pipe == PIPE_C ||
-                           IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv))
-                               return false;
-               }
-       }
+       if (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv))
+               return false;
+
+       if (INTEL_GEN(dev_priv) == 9 && !IS_GEMINILAKE(dev_priv) && pipe == 
PIPE_C)
+               return false;
+
+       if (plane_id == PLANE_CURSOR || plane_id != PLANE_SPRITE0)
+               return false;
+
        return true;
 }
 
-- 
2.17.1

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