On 12/20/23 12:30, [email protected] wrote:
From: Roman Li <[email protected]>

[Why]
Instability is observed on DCN35 if idle power optimization is enabled.

[How]
Disable IPS until issue is resolved.

Signed-off-by: Roman Li <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
---
  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 ++
  1 file changed, 2 insertions(+)

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 2845c884398e..2cabe1b463bc 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1710,6 +1710,8 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
        init_data.nbio_reg_offsets = adev->reg_offset[NBIO_HWIP][0];
        init_data.clk_reg_offsets = adev->reg_offset[CLK_HWIP][0];
+ init_data.flags.disable_ips = DMUB_IPS_DISABLE_ALL;
+
        /* Enable DWB for tested platforms only */
        if (amdgpu_ip_version(adev, DCE_HWIP, 0) >= IP_VERSION(3, 0, 0))
                init_data.num_virtual_links = 1;

Reviewed-by: Rodrigo Siqueira <[email protected]>

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