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| author |   Anthony Koo <Anthony.Koo@amd.com> | 2019-10-02 12:22:29 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-10-25 16:50:09 -0400 |
| commit | e9c93e5af395022eb52923ae84e29b9b0b6d7073 (patch) | |
| tree | e43d16c1dc9479f988bc92a57b65870d97a85257 /drivers/gpu/drm/amd/display | |
| parent | drm/amd/display: Disable force_single_disp_pipe_split on DCN2+ (diff) | |
| download | linux-dev-e9c93e5af395022eb52923ae84e29b9b0b6d7073.tar.xz linux-dev-e9c93e5af395022eb52923ae84e29b9b0b6d7073.zip | |
drm/amd/display: Proper return of result when aux engine acquire fails
[Why]
When aux engine acquire fails, we missed populating the operation_result
that describes the failure reason.
[How]
Set operation_result to new type:
AUX_CHANNEL_OPERATION_FAILED_ENGINE_ACQUIRE
in the case aux engine acquire has failed.
Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_ddc_types.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | 5 |
3 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index 3af2b429ff1b..779d0b60cac9 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -113,6 +113,7 @@ static ssize_t dm_dp_aux_transfer(struct drm_dp_aux *aux, result = -EIO; break; case AUX_CHANNEL_OPERATION_FAILED_INVALID_REPLY: + case AUX_CHANNEL_OPERATION_FAILED_ENGINE_ACQUIRE: result = -EBUSY; break; case AUX_CHANNEL_OPERATION_FAILED_TIMEOUT: diff --git a/drivers/gpu/drm/amd/display/dc/dc_ddc_types.h b/drivers/gpu/drm/amd/display/dc/dc_ddc_types.h index 4ef97f65e55d..4f8f576d5fcf 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_ddc_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_ddc_types.h @@ -49,7 +49,8 @@ enum aux_channel_operation_result { AUX_CHANNEL_OPERATION_FAILED_REASON_UNKNOWN, AUX_CHANNEL_OPERATION_FAILED_INVALID_REPLY, AUX_CHANNEL_OPERATION_FAILED_TIMEOUT, - AUX_CHANNEL_OPERATION_FAILED_HPD_DISCON + AUX_CHANNEL_OPERATION_FAILED_HPD_DISCON, + AUX_CHANNEL_OPERATION_FAILED_ENGINE_ACQUIRE }; diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c index 976bd4987a28..22abb345ddc1 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c @@ -538,8 +538,10 @@ int dce_aux_transfer_raw(struct ddc_service *ddc, memset(&aux_rep, 0, sizeof(aux_rep)); aux_engine = ddc->ctx->dc->res_pool->engines[ddc_pin->pin_data->en]; - if (!acquire(aux_engine, ddc_pin)) + if (!acquire(aux_engine, ddc_pin)) { + *operation_result = AUX_CHANNEL_OPERATION_FAILED_ENGINE_ACQUIRE; return -1; + } if (payload->i2c_over_aux) aux_req.type = AUX_TRANSACTION_TYPE_I2C; @@ -663,6 +665,7 @@ bool dce_aux_transfer_with_retries(struct ddc_service *ddc, break; case AUX_CHANNEL_OPERATION_FAILED_HPD_DISCON: + case AUX_CHANNEL_OPERATION_FAILED_ENGINE_ACQUIRE: case AUX_CHANNEL_OPERATION_FAILED_REASON_UNKNOWN: default: goto fail; |