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path: root/drivers/gpu/drm/radeon/atombios_dp.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_dp.c')
-rw-r--r--drivers/gpu/drm/radeon/atombios_dp.c97
1 files changed, 58 insertions, 39 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index 0d63c4436e7c..8a133bda00a2 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -321,6 +321,10 @@ static void dp_get_adjust_train(u8 link_status[DP_LINK_STATUS_SIZE],
train_set[lane] = v | p;
}
+union aux_channel_transaction {
+ PROCESS_AUX_CHANNEL_TRANSACTION_PS_ALLOCATION v1;
+ PROCESS_AUX_CHANNEL_TRANSACTION_PARAMETERS_V2 v2;
+};
/* radeon aux chan functions */
bool radeon_process_aux_ch(struct radeon_i2c_chan *chan, u8 *req_bytes,
@@ -329,39 +333,45 @@ bool radeon_process_aux_ch(struct radeon_i2c_chan *chan, u8 *req_bytes,
{
struct drm_device *dev = chan->dev;
struct radeon_device *rdev = dev->dev_private;
- PROCESS_AUX_CHANNEL_TRANSACTION_PS_ALLOCATION args;
+ 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.lpAuxRequest = 0;
- args.lpDataOut = 16;
- args.ucDataOutLen = 0;
- args.ucChannelID = chan->rec.i2c_id;
- args.ucDelay = delay / 10;
+ args.v1.lpAuxRequest = 0;
+ args.v1.lpDataOut = 16;
+ args.v1.ucDataOutLen = 0;
+ args.v1.ucChannelID = chan->rec.i2c_id;
+ args.v1.ucDelay = delay / 10;
+ if (ASIC_IS_DCE4(rdev))
+ args.v2.ucHPD_ID = chan->rec.hpd_id;
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.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.ucReplyStatus);
+ chan->rec.i2c_id, args.v1.ucReplyStatus, retry_count);
return false;
}
- if (args.ucDataOutLen && read_byte && read_buf_len) {
- if (read_buf_len < args.ucDataOutLen) {
+ if (args.v1.ucDataOutLen && read_byte && read_buf_len) {
+ if (read_buf_len < args.v1.ucDataOutLen) {
DRM_ERROR("Buffer to small for return answer %d %d\n",
- read_buf_len, args.ucDataOutLen);
+ read_buf_len, args.v1.ucDataOutLen);
return false;
}
{
- int len = min(read_buf_len, args.ucDataOutLen);
+ int len = min(read_buf_len, args.v1.ucDataOutLen);
memcpy(read_byte, base + 16, len);
}
}
@@ -468,7 +478,8 @@ 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 +593,8 @@ 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 +606,14 @@ 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)
@@ -627,12 +632,19 @@ void dp_link_train(struct drm_encoder *encoder,
dp_set_link_bw_lanes(radeon_connector, link_configuration);
/* disable downspread on the sink */
dp_set_downspread(radeon_connector, 0);
- /* start training on the source */
- radeon_dp_encoder_service(rdev, ATOM_DP_ACTION_TRAINING_START,
- dig_connector->dp_clock, enc_id, 0);
- /* set training pattern 1 on the source */
- radeon_dp_encoder_service(rdev, ATOM_DP_ACTION_TRAINING_PATTERN_SEL,
- dig_connector->dp_clock, enc_id, 0);
+ if (ASIC_IS_DCE4(rdev)) {
+ /* start training on the source */
+ atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_LINK_TRAINING_START);
+ /* set training pattern 1 on the source */
+ atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_LINK_TRAINING_PATTERN1);
+ } else {
+ /* start training on the source */
+ radeon_dp_encoder_service(rdev, ATOM_DP_ACTION_TRAINING_START,
+ dig_connector->dp_clock, enc_id, 0);
+ /* set training pattern 1 on the source */
+ radeon_dp_encoder_service(rdev, ATOM_DP_ACTION_TRAINING_PATTERN_SEL,
+ dig_connector->dp_clock, enc_id, 0);
+ }
/* set initial vs/emph */
memset(train_set, 0, 4);
@@ -692,8 +704,11 @@ void dp_link_train(struct drm_encoder *encoder,
/* set training pattern 2 on the sink */
dp_set_training(radeon_connector, DP_TRAINING_PATTERN_2);
/* set training pattern 2 on the source */
- radeon_dp_encoder_service(rdev, ATOM_DP_ACTION_TRAINING_PATTERN_SEL,
- dig_connector->dp_clock, enc_id, 1);
+ if (ASIC_IS_DCE4(rdev))
+ atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_LINK_TRAINING_PATTERN2);
+ else
+ radeon_dp_encoder_service(rdev, ATOM_DP_ACTION_TRAINING_PATTERN_SEL,
+ dig_connector->dp_clock, enc_id, 1);
/* channel equalization loop */
tries = 0;
@@ -730,7 +745,11 @@ void dp_link_train(struct drm_encoder *encoder,
>> DP_TRAIN_PRE_EMPHASIS_SHIFT);
/* disable the training pattern on the sink */
- dp_set_training(radeon_connector, DP_TRAINING_PATTERN_DISABLE);
+ 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);
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-11 17:33:20 +0200