diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_dp.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_dp.c | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index 0d63c4436e7..99915a682d5 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -332,11 +332,13 @@ bool radeon_process_aux_ch(struct radeon_i2c_chan *chan, u8 *req_bytes, PROCESS_AUX_CHANNEL_TRANSACTION_PS_ALLOCATION 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.lpAuxRequest = 0; @@ -347,10 +349,12 @@ bool radeon_process_aux_ch(struct radeon_i2c_chan *chan, u8 *req_bytes, atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); - if (args.ucReplyStatus) { - DRM_DEBUG("failed to get auxch %02x%02x %02x %02x 0x%02x %02x\n", + if (args.ucReplyStatus && !args.ucDataOutLen) { + if (args.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.ucReplyStatus); + chan->rec.i2c_id, args.ucReplyStatus, retry_count); return false; } @@ -468,7 +472,8 @@ void radeon_dp_set_link_config(struct drm_connector *connector, struct radeon_connector *radeon_connector; struct radeon_connector_atom_dig *dig_connector; - if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) + if ((connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) && + (connector->connector_type != DRM_MODE_CONNECTOR_eDP)) return; radeon_connector = to_radeon_connector(connector); @@ -582,7 +587,8 @@ void dp_link_train(struct drm_encoder *encoder, u8 train_set[4]; int i; - if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) + if ((connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) && + (connector->connector_type != DRM_MODE_CONNECTOR_eDP)) return; if (!radeon_encoder->enc_priv) @@ -594,21 +600,14 @@ void dp_link_train(struct drm_encoder *encoder, return; dig_connector = radeon_connector->con_priv; - if (ASIC_IS_DCE32(rdev)) { - if (dig->dig_block) - enc_id |= ATOM_DP_CONFIG_DIG2_ENCODER; - else - enc_id |= ATOM_DP_CONFIG_DIG1_ENCODER; - if (dig_connector->linkb) - enc_id |= ATOM_DP_CONFIG_LINK_B; - else - enc_id |= ATOM_DP_CONFIG_LINK_A; - } else { - if (dig_connector->linkb) - enc_id |= ATOM_DP_CONFIG_DIG2_ENCODER | ATOM_DP_CONFIG_LINK_B; - else - enc_id |= ATOM_DP_CONFIG_DIG1_ENCODER | ATOM_DP_CONFIG_LINK_A; - } + if (dig->dig_encoder) + enc_id |= ATOM_DP_CONFIG_DIG2_ENCODER; + else + enc_id |= ATOM_DP_CONFIG_DIG1_ENCODER; + if (dig_connector->linkb) + enc_id |= ATOM_DP_CONFIG_LINK_B; + else + enc_id |= ATOM_DP_CONFIG_LINK_A; memset(link_configuration, 0, DP_LINK_CONFIGURATION_SIZE); if (dig_connector->dp_clock == 270000) |