linux-kernel - [RFC PATCH] drm/komeda: Creates plane alpha and blend mode properties

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Message-ID: <1553841845-20174-1-git-send-email-lowry.li@arm.com>
Date:   Fri, 29 Mar 2019 06:44:45 +0000
From:   "Lowry Li (Arm Technology China)" <Lowry.Li@....com>
To:     Liviu Dudau <Liviu.Dudau@....com>,
        "james qian wang (Arm Technology China)" <james.qian.wang@....com>,
        "maarten.lankhorst@...ux.intel.com" 
        <maarten.lankhorst@...ux.intel.com>,
        "seanpaul@...omium.org" <seanpaul@...omium.org>,
        "airlied@...ux.ie" <airlied@...ux.ie>,
        Brian Starkey <Brian.Starkey@....com>
CC:     "Julien Yin (Arm Technology China)" <Julien.Yin@....com>,
        "Jonathan Chai (Arm Technology China)" <Jonathan.Chai@....com>,
        Ayan Halder <Ayan.Halder@....com>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        nd <nd@....com>
Subject: [RFC PATCH] drm/komeda: Creates plane alpha and blend mode properties

Creates plane alpha and blend mode properties attached to plane.

Signed-off-by: Lowry Li <lowry.li@....com>
---
 drivers/gpu/drm/arm/display/komeda/komeda_plane.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
index af51f0c..0ebec39 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
@@ -212,6 +212,17 @@ static int komeda_plane_add(struct komeda_kms_dev *kms,
 
 	drm_plane_helper_add(plane, &komeda_plane_helper_funcs);
 
+	err = drm_plane_create_alpha_property(plane);
+	if (err)
+		goto cleanup;
+
+	err = drm_plane_create_blend_mode_property(plane,
+			BIT(DRM_MODE_BLEND_PIXEL_NONE) |
+			BIT(DRM_MODE_BLEND_PREMULTI)   |
+			BIT(DRM_MODE_BLEND_COVERAGE));
+	if (err)
+		goto cleanup;
+
 	return 0;
 cleanup:
 	komeda_plane_destroy(plane);
-- 
1.9.1