From 59b853a089a1bfb061e04bc18e58c31be62af6c3 Mon Sep 17 00:00:00 2001
From: Charlene Liu <Charlene.Liu@amd.com>
Date: Tue, 19 May 2020 15:35:58 -0400
Subject: drm/amd/display: correct alpha_en programming for new pixel format
Git-commit: 5069202f002424fa18d4a0cb175e9e350c6addf9
Patch-mainline: v5.9-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322

[why]
for following new format, no alpha
       SURFACE_PIXEL_FORMAT_GRPH_RGB111110_FLOAT/_FIX:
       SURFACE_PIXEL_FORMAT_GRPH_BGR101111_FLOAT/_FIX
       same as case SURFACE_PIXEL_FORMAT_GRPH_ARGB1555:

Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Reviewed-by: Chris Park <Chris.Park@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dpp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dpp.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dpp.c
index 42bba7c9548b..4af96cc5d9d6 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dpp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dpp.c
@@ -181,9 +181,11 @@ static void dpp2_cnv_setup (
 		break;
 	case SURFACE_PIXEL_FORMAT_GRPH_RGB111110_FIX:
 		pixel_format = 112;
+		alpha_en = 0;
 		break;
 	case SURFACE_PIXEL_FORMAT_GRPH_BGR101111_FIX:
 		pixel_format = 113;
+		alpha_en = 0;
 		break;
 	case SURFACE_PIXEL_FORMAT_VIDEO_ACrYCb2101010:
 		pixel_format = 114;
@@ -199,9 +201,11 @@ static void dpp2_cnv_setup (
 		break;
 	case SURFACE_PIXEL_FORMAT_GRPH_RGB111110_FLOAT:
 		pixel_format = 118;
+		alpha_en = 0;
 		break;
 	case SURFACE_PIXEL_FORMAT_GRPH_BGR101111_FLOAT:
 		pixel_format = 119;
+		alpha_en = 0;
 		break;
 	default:
 		break;
-- 
2.29.2