clear-pkgs-linux-iot-lts2018/1028-INTERNAL-drm-i915-Additional-alpha-blending-support.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: kimsehun <se.hun.kim@intel.com>
Date: Thu, 7 Mar 2019 03:25:42 -0500
Subject: [PATCH] INTERNAL drm/i915: Additional alpha blending support

This patch is related with commit id b20815255 and e5fa98aa2
Since INTERNAL version doesn't work with native clear linux.

To fully support alpha blending on native Clear linux,
need to alpha and blending property set on primary plane create
and sprite plane create function.

Hot Fix of - INTERNAL drm/i915: Add plane alpha blending support, v2.

Tracked-On: OLINUX-3689
Tracked-On: PKT-1773
Signed-off-by: kimsehun <se.hun.kim@intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 9 ++++++++-
 drivers/gpu/drm/i915/intel_sprite.c  | 8 ++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 498dfd275d20..b465bcacfc2d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13905,7 +13905,7 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 			DRM_ERROR("Failed to create decryption property\n");
 	}
 
-	if (INTEL_GEN(dev_priv) >= 9)
+	if (INTEL_GEN(dev_priv) >= 9) {
 		drm_plane_create_color_properties(&primary->base,
 						  BIT(DRM_COLOR_YCBCR_BT601) |
 						  BIT(DRM_COLOR_YCBCR_BT709),
@@ -13914,6 +13914,13 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 						  DRM_COLOR_YCBCR_BT709,
 						  DRM_COLOR_YCBCR_LIMITED_RANGE);
 
+		drm_plane_create_alpha_property(&primary->base);
+		drm_plane_create_blend_mode_property(&primary->base,
+						     BIT(DRM_MODE_BLEND_PIXEL_NONE) |
+						     BIT(DRM_MODE_BLEND_PREMULTI) |
+						     BIT(DRM_MODE_BLEND_COVERAGE));
+	}
+
 	drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
 
 	return primary;
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 8a013f19fa99..b388a6b5b402 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -1755,6 +1755,14 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 					  DRM_COLOR_YCBCR_BT709,
 					  DRM_COLOR_YCBCR_LIMITED_RANGE);
 
+	if (INTEL_GEN(dev_priv) >= 9) {
+		drm_plane_create_alpha_property(&intel_plane->base);
+		drm_plane_create_blend_mode_property(&intel_plane->base,
+						     BIT(DRM_MODE_BLEND_PIXEL_NONE) |
+						     BIT(DRM_MODE_BLEND_PREMULTI) |
+						     BIT(DRM_MODE_BLEND_COVERAGE));
+	}
+
 	drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
 
 	return intel_plane;
-- 
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