[PATCH 2/4] drm/exynos: preset zpos value for overlay planes

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From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>

Usually userspace don't want to have two overlay planes on the same zpos
so this change assign a different zpos for each plane. Before this change
a zpos of value zero was created for all planes so the userspace had to
set up the zpos of every plane it wanted to use.

Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/exynos/exynos_drm_fimd.c  |  2 +-
 drivers/gpu/drm/exynos/exynos_drm_plane.c | 15 ++++++++-------
 drivers/gpu/drm/exynos/exynos_drm_plane.h |  3 ++-
 drivers/gpu/drm/exynos/exynos_drm_vidi.c  |  2 +-
 drivers/gpu/drm/exynos/exynos_mixer.c     |  2 +-
 5 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 489ce90..b49b038 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -1006,7 +1006,7 @@ static int fimd_bind(struct device *dev, struct device *master, void *data)
 		type = (zpos == ctx->default_win) ? DRM_PLANE_TYPE_PRIMARY :
 						DRM_PLANE_TYPE_OVERLAY;
 		exynos_plane_init(drm_dev, &ctx->planes[zpos], 1 << ctx->pipe,
-				  type);
+				  type, zpos);
 	}
 
 	ret = fimd_ctx_initialize(ctx, drm_dev);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
index 011a9b1..4c33e04 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -211,7 +211,7 @@ static struct drm_plane_funcs exynos_plane_funcs = {
 	.set_property	= exynos_plane_set_property,
 };
 
-static void exynos_plane_attach_zpos_property(struct drm_plane *plane)
+static void exynos_plane_attach_zpos_property(struct drm_plane *plane, int zpos)
 {
 	struct drm_device *dev = plane->dev;
 	struct exynos_drm_private *dev_priv = dev->dev_private;
@@ -227,12 +227,13 @@ static void exynos_plane_attach_zpos_property(struct drm_plane *plane)
 		dev_priv->plane_zpos_property = prop;
 	}
 
-	drm_object_attach_property(&plane->base, prop, 0);
+	drm_object_attach_property(&plane->base, prop, zpos);
 }
 
 int exynos_plane_init(struct drm_device *dev,
 		      struct exynos_drm_plane *exynos_plane,
-		      unsigned long possible_crtcs, enum drm_plane_type type)
+		      unsigned long possible_crtcs, enum drm_plane_type type,
+		      int zpos)
 {
 	int err;
 
@@ -244,10 +245,10 @@ int exynos_plane_init(struct drm_device *dev,
 		return err;
 	}
 
-	if (type == DRM_PLANE_TYPE_PRIMARY)
-		exynos_plane->zpos = DEFAULT_ZPOS;
-	else
-		exynos_plane_attach_zpos_property(&exynos_plane->base);
+	exynos_plane->zpos = zpos;
+
+	if (type == DRM_PLANE_TYPE_OVERLAY)
+		exynos_plane_attach_zpos_property(&exynos_plane->base, zpos);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.h b/drivers/gpu/drm/exynos/exynos_drm_plane.h
index d8a3494..d8a66b5 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.h
@@ -22,4 +22,5 @@ int exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 			uint32_t src_w, uint32_t src_h);
 int exynos_plane_init(struct drm_device *dev,
 		      struct exynos_drm_plane *exynos_plane,
-		      unsigned long possible_crtcs, enum drm_plane_type type);
+		      unsigned long possible_crtcs, enum drm_plane_type type,
+		      int zpos);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
index f33974e..e545a58 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -478,7 +478,7 @@ static int vidi_bind(struct device *dev, struct device *master, void *data)
 		type = (zpos == ctx->default_win) ? DRM_PLANE_TYPE_PRIMARY :
 						DRM_PLANE_TYPE_OVERLAY;
 		exynos_plane_init(drm_dev, &ctx->planes[zpos], 1 << ctx->pipe,
-				  type);
+				  type, zpos);
 	}
 
 	vidi_ctx_initialize(ctx, drm_dev);
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index 6e7c0cc..141d461 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -1177,7 +1177,7 @@ static int mixer_bind(struct device *dev, struct device *manager, void *data)
 		type = (zpos == MIXER_DEFAULT_WIN) ? DRM_PLANE_TYPE_PRIMARY :
 						DRM_PLANE_TYPE_OVERLAY;
 		exynos_plane_init(drm_dev, &ctx->planes[zpos], 1 << ctx->pipe,
-				  type);
+				  type, zpos);
 	}
 
 	ret = mixer_initialize(ctx, drm_dev);
-- 
1.9.3

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