[PATCH 1/2] drm/amd/display: Disable dmcu fw loading for dcn314

Roman.Li at amd.com Roman.Li at amd.com
Tue Jul 19 18:26:45 UTC 2022


From: Roman Li <roman.li at amd.com>

[Why]
DCN 3.1.4 uses dmub not dmcu. Attempt to identify
dmcu firmware for dcn314 results in dm init error:
"Unsupported ASIC type"

[How]
Add dcn314 to the list of asics that don't require dmcu

Signed-off-by: Roman Li <roman.li at amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index dae998e014b0..9fff5aa86567 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1893,6 +1893,7 @@ static int load_dmcu_fw(struct amdgpu_device *adev)
 		case IP_VERSION(3, 0, 1):
 		case IP_VERSION(3, 1, 2):
 		case IP_VERSION(3, 1, 3):
+		case IP_VERSION(3, 1, 4):
 		case IP_VERSION(3, 1, 5):
 		case IP_VERSION(3, 1, 6):
 		case IP_VERSION(3, 2, 0):
-- 
2.17.1



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