diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2024-08-19 11:14:29 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-08-20 22:14:14 -0400 |
| commit | c69b07f7bbc905022491c45097923d3487479529 (patch) | |
| tree | b52837ecd6f5260705c9ba374de56687b08c4935 /drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | |
| parent | e389eefe34cebc6219dbe76a923b342b2f31e3ba (diff) | |
drm/amdgpu: fix eGPU hotplug regression
The driver needs to wait for the on board firmware
to finish its initialization before probing the card.
Commit 959056982a9b ("drm/amdgpu: Fix discovery initialization failure during pci rescan")
switched from using msleep() to using usleep_range() which
seems to have caused init failures on some navi1x boards. Switch
back to msleep().
Fixes: 959056982a9b ("drm/amdgpu: Fix discovery initialization failure during pci rescan")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3559
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3500
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Ma Jun <Jun.Ma2@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c index ac108fca64fe..7b561e8e3caf 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c @@ -278,7 +278,7 @@ static int amdgpu_discovery_read_binary_from_mem(struct amdgpu_device *adev, msg = RREG32(mmMP0_SMN_C2PMSG_33); if (msg & 0x80000000) break; - usleep_range(1000, 1100); + msleep(1); } } |