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| author |   Alex Deucher <alexander.deucher@amd.com> | 2022-01-27 12:17:23 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-01-27 15:50:03 -0500 |
| commit | e281d5940ae7f2ceff99d5e001a69b5f0884d2f0 (patch) | |
| tree | efafddada5a7a4374b402460c5d7779bbec56c0c /drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | |
| parent | drm/amd: Enable FRU EEPROM for Sienna Cichlid (diff) | |
| download | linux-dev-e281d5940ae7f2ceff99d5e001a69b5f0884d2f0.tar.xz linux-dev-e281d5940ae7f2ceff99d5e001a69b5f0884d2f0.zip | |
drm/amdgpu/swsmu/i2c: return an error if the SMU is not running
Return an error if someone tries to use the i2c bus when the
SMU is not running. Otherwise we can end up sending commands
to the SMU which will either get ignored or could cause other
issues depending on what state the GPU and SMU are in.
Cc: Luben.Tuikov@amd.com
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c index 1c71ea97d06f..22dd372b8d24 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c @@ -3449,6 +3449,9 @@ static int sienna_cichlid_i2c_xfer(struct i2c_adapter *i2c_adap, int i, j, r, c; u16 dir; + if (!adev->pm.dpm_enabled) + return -EBUSY; + req = kzalloc(sizeof(*req), GFP_KERNEL); if (!req) return -ENOMEM; |