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From 408adc22d1ae6f3f24f3c28512d97be07e7c5802 Mon Sep 17 00:00:00 2001
From: hersen wu <hersenxs.wu@amd.com>
Date: Wed, 10 Apr 2019 16:19:09 -0400
Subject: [PATCH 2506/2940] drm/amd/display: Disable display writeback on Linux
for NV10
[WHY] system crash when initialize dwb
current linux driver does not support dwb.
disable this feature for now.
[HOW] set num_dwb = 0 to disable dwb for now
Signed-off-by: hersen wu <hersenxs.wu@amd.com>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index b23333b74f5d..d2642cc52c85 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -623,7 +623,7 @@ static const struct resource_caps res_cap_nv10 = {
.num_audio = 7,
.num_stream_encoder = 6,
.num_pll = 6,
- .num_dwb = 1,
+ .num_dwb = 0,
.num_ddc = 6,
.num_vmid = 16,
#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
--
2.17.1
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