union aux_channel_transaction args;
int index = GetIndexIntoMasterTable(COMMAND, ProcessAuxChannelTransaction);
unsigned char *base;
+ int retry_count = 0;
memset(&args, 0, sizeof(args));
base = (unsigned char *)rdev->mode_info.atom_context->scratch;
+retry:
memcpy(base, req_bytes, num_bytes);
args.v1.lpAuxRequest = 0;
atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
- if (args.v1.ucReplyStatus) {
- DRM_DEBUG("failed to get auxch %02x%02x %02x %02x 0x%02x %02x\n",
+ if (args.v1.ucReplyStatus && !args.v1.ucDataOutLen) {
+ if (args.v1.ucReplyStatus == 0x20 && retry_count++ < 10)
+ goto retry;
+ DRM_DEBUG("failed to get auxch %02x%02x %02x %02x 0x%02x %02x after %d retries\n",
req_bytes[1], req_bytes[0], req_bytes[2], req_bytes[3],
- chan->rec.i2c_id, args.v1.ucReplyStatus);
+ chan->rec.i2c_id, args.v1.ucReplyStatus, retry_count);
return false;
}
>> DP_TRAIN_PRE_EMPHASIS_SHIFT);
/* disable the training pattern on the sink */
+ dp_set_training(radeon_connector, DP_TRAINING_PATTERN_DISABLE);
+
+ /* disable the training pattern on the source */
if (ASIC_IS_DCE4(rdev))
atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_LINK_TRAINING_COMPLETE);
else
radeon_dp_encoder_service(rdev, ATOM_DP_ACTION_TRAINING_COMPLETE,
dig_connector->dp_clock, enc_id, 0);
-
- radeon_dp_encoder_service(rdev, ATOM_DP_ACTION_TRAINING_COMPLETE,
- dig_connector->dp_clock, enc_id, 0);
}
int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,