[PATCH 393/459] drm/amd/display: Disable display writeback on Linux for NV10

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From: hersen wu <hersenxs.wu@xxxxxxx>

[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@xxxxxxx>
Reviewed-by: Leo Li <sunpeng.li@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
 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
-- 
2.20.1

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