- reorganize the functions based on use - clean up function naming - rework link training to better match what we use internally - add initial support for DP 1.2 (no MST yet)
Signed-off-by: Alex Deucher alexdeucher@gmail.com --- drivers/gpu/drm/radeon/atombios_dp.c | 1094 +++++++++++++++------------- drivers/gpu/drm/radeon/radeon_connectors.c | 4 +- drivers/gpu/drm/radeon/radeon_encoders.c | 4 +- drivers/gpu/drm/radeon/radeon_mode.h | 6 +- 4 files changed, 584 insertions(+), 524 deletions(-)
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index 444954d..5f2ddcd 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -43,158 +43,242 @@ static char *pre_emph_names[] = { "0dB", "3.5dB", "6dB", "9.5dB" };
-static const int dp_clocks[] = { - 54000, /* 1 lane, 1.62 Ghz */ - 90000, /* 1 lane, 2.70 Ghz */ - 108000, /* 2 lane, 1.62 Ghz */ - 180000, /* 2 lane, 2.70 Ghz */ - 216000, /* 4 lane, 1.62 Ghz */ - 360000, /* 4 lane, 2.70 Ghz */ +/***** radeon AUX functions *****/ +union aux_channel_transaction { + PROCESS_AUX_CHANNEL_TRANSACTION_PS_ALLOCATION v1; + PROCESS_AUX_CHANNEL_TRANSACTION_PARAMETERS_V2 v2; };
-static const int num_dp_clocks = sizeof(dp_clocks) / sizeof(int); +static int radeon_process_aux_ch(struct radeon_i2c_chan *chan, + u8 *send, int send_bytes, + u8 *recv, int recv_size, + u8 delay, u8 *ack) +{ + struct drm_device *dev = chan->dev; + struct radeon_device *rdev = dev->dev_private; + union aux_channel_transaction args; + int index = GetIndexIntoMasterTable(COMMAND, ProcessAuxChannelTransaction); + unsigned char *base; + int recv_bytes; + + memset(&args, 0, sizeof(args));
-/* common helper functions */ -static int dp_lanes_for_mode_clock(u8 dpcd[DP_DPCD_SIZE], int mode_clock) + base = (unsigned char *)rdev->mode_info.atom_context->scratch; + + memcpy(base, send, send_bytes); + + 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; + + atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); + + *ack = args.v1.ucReplyStatus; + + /* timeout */ + if (args.v1.ucReplyStatus == 1) { + DRM_DEBUG_KMS("dp_aux_ch timeout\n"); + return -ETIMEDOUT; + } + + /* flags not zero */ + if (args.v1.ucReplyStatus == 2) { + DRM_DEBUG_KMS("dp_aux_ch flags not zero\n"); + return -EBUSY; + } + + /* error */ + if (args.v1.ucReplyStatus == 3) { + DRM_DEBUG_KMS("dp_aux_ch error\n"); + return -EIO; + } + + recv_bytes = args.v1.ucDataOutLen; + if (recv_bytes > recv_size) + recv_bytes = recv_size; + + if (recv && recv_size) + memcpy(recv, base + 16, recv_bytes); + + return recv_bytes; +} + +static int radeon_dp_aux_native_write(struct radeon_connector *radeon_connector, + u16 address, u8 *send, u8 send_bytes, u8 delay) { - int i; - u8 max_link_bw; - u8 max_lane_count; + struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; + int ret; + u8 msg[20]; + int msg_bytes = send_bytes + 4; + u8 ack;
- if (!dpcd) - return 0; + if (send_bytes > 16) + return -1;
- max_link_bw = dpcd[DP_MAX_LINK_RATE]; - max_lane_count = dpcd[DP_MAX_LANE_COUNT] & DP_MAX_LANE_COUNT_MASK; + msg[0] = address; + msg[1] = address >> 8; + msg[2] = AUX_NATIVE_WRITE << 4; + msg[3] = (msg_bytes << 4) | (send_bytes - 1); + memcpy(&msg[4], send, send_bytes);
- switch (max_link_bw) { - case DP_LINK_BW_1_62: - default: - for (i = 0; i < num_dp_clocks; i++) { - if (i % 2) - continue; - switch (max_lane_count) { - case 1: - if (i > 1) - return 0; - break; - case 2: - if (i > 3) - return 0; - break; - case 4: - default: - break; - } - if (dp_clocks[i] > mode_clock) { - if (i < 2) - return 1; - else if (i < 4) - return 2; - else - return 4; - } - } - break; - case DP_LINK_BW_2_7: - for (i = 0; i < num_dp_clocks; i++) { - switch (max_lane_count) { - case 1: - if (i > 1) - return 0; - break; - case 2: - if (i > 3) - return 0; - break; - case 4: - default: - break; - } - if (dp_clocks[i] > mode_clock) { - if (i < 2) - return 1; - else if (i < 4) - return 2; - else - return 4; - } - } - break; + while (1) { + ret = radeon_process_aux_ch(dig_connector->dp_i2c_bus, + msg, msg_bytes, NULL, 0, delay, &ack); + if (ret < 0) + return ret; + if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK) + break; + else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER) + udelay(400); + else + return -EIO; }
- return 0; + return send_bytes; }
-static int dp_link_clock_for_mode_clock(u8 dpcd[DP_DPCD_SIZE], int mode_clock) +static int radeon_dp_aux_native_read(struct radeon_connector *radeon_connector, + u16 address, u8 *recv, int recv_bytes, u8 delay) { - int i; - u8 max_link_bw; - u8 max_lane_count; + struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; + u8 msg[4]; + int msg_bytes = 4; + u8 ack; + int ret;
- if (!dpcd) - return 0; + msg[0] = address; + msg[1] = address >> 8; + msg[2] = AUX_NATIVE_READ << 4; + msg[3] = (msg_bytes << 4) | (recv_bytes - 1);
- max_link_bw = dpcd[DP_MAX_LINK_RATE]; - max_lane_count = dpcd[DP_MAX_LANE_COUNT] & DP_MAX_LANE_COUNT_MASK; + while (1) { + ret = radeon_process_aux_ch(dig_connector->dp_i2c_bus, + msg, msg_bytes, recv, recv_bytes, delay, &ack); + if (ret == 0) + return -EPROTO; + if (ret < 0) + return ret; + if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK) + return ret; + else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER) + udelay(400); + else + return -EIO; + } +}
- switch (max_link_bw) { - case DP_LINK_BW_1_62: +static void radeon_write_dpcd_reg(struct radeon_connector *radeon_connector, + u16 reg, u8 val) +{ + radeon_dp_aux_native_write(radeon_connector, reg, &val, 1, 0); +} + +static u8 radeon_read_dpcd_reg(struct radeon_connector *radeon_connector, + u16 reg) +{ + u8 val = 0; + + radeon_dp_aux_native_read(radeon_connector, reg, &val, 1, 0); + + return val; +} + +int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode, + u8 write_byte, u8 *read_byte) +{ + struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data; + struct radeon_i2c_chan *auxch = (struct radeon_i2c_chan *)adapter; + u16 address = algo_data->address; + u8 msg[5]; + u8 reply[2]; + unsigned retry; + int msg_bytes; + int reply_bytes = 1; + int ret; + u8 ack; + + /* Set up the command byte */ + if (mode & MODE_I2C_READ) + msg[2] = AUX_I2C_READ << 4; + else + msg[2] = AUX_I2C_WRITE << 4; + + if (!(mode & MODE_I2C_STOP)) + msg[2] |= AUX_I2C_MOT << 4; + + msg[0] = address; + msg[1] = address >> 8; + + switch (mode) { + case MODE_I2C_WRITE: + msg_bytes = 5; + msg[3] = msg_bytes << 4; + msg[4] = write_byte; + break; + case MODE_I2C_READ: + msg_bytes = 4; + msg[3] = msg_bytes << 4; + break; default: - for (i = 0; i < num_dp_clocks; i++) { - if (i % 2) - continue; - switch (max_lane_count) { - case 1: - if (i > 1) - return 0; - break; - case 2: - if (i > 3) - return 0; - break; - case 4: - default: - break; - } - if (dp_clocks[i] > mode_clock) - return 162000; - } + msg_bytes = 4; + msg[3] = 3 << 4; break; - case DP_LINK_BW_2_7: - for (i = 0; i < num_dp_clocks; i++) { - switch (max_lane_count) { - case 1: - if (i > 1) - return 0; - break; - case 2: - if (i > 3) - return 0; - break; - case 4: - default: - break; - } - if (dp_clocks[i] > mode_clock) - return (i % 2) ? 270000 : 162000; - } }
- return 0; -} + for (retry = 0; retry < 4; retry++) { + ret = radeon_process_aux_ch(auxch, + msg, msg_bytes, reply, reply_bytes, 0, &ack); + if (ret < 0) { + DRM_DEBUG_KMS("aux_ch failed %d\n", ret); + return ret; + }
-int dp_mode_valid(u8 dpcd[DP_DPCD_SIZE], int mode_clock) -{ - int lanes = dp_lanes_for_mode_clock(dpcd, mode_clock); - int dp_clock = dp_link_clock_for_mode_clock(dpcd, mode_clock); + switch (ack & AUX_NATIVE_REPLY_MASK) { + case AUX_NATIVE_REPLY_ACK: + /* I2C-over-AUX Reply field is only valid + * when paired with AUX ACK. + */ + break; + case AUX_NATIVE_REPLY_NACK: + DRM_DEBUG_KMS("aux_ch native nack\n"); + return -EREMOTEIO; + case AUX_NATIVE_REPLY_DEFER: + DRM_DEBUG_KMS("aux_ch native defer\n"); + udelay(400); + continue; + default: + DRM_ERROR("aux_ch invalid native reply 0x%02x\n", ack); + return -EREMOTEIO; + }
- if ((lanes == 0) || (dp_clock == 0)) - return MODE_CLOCK_HIGH; + switch (ack & AUX_I2C_REPLY_MASK) { + case AUX_I2C_REPLY_ACK: + if (mode == MODE_I2C_READ) + *read_byte = reply[0]; + return ret; + case AUX_I2C_REPLY_NACK: + DRM_DEBUG_KMS("aux_i2c nack\n"); + return -EREMOTEIO; + case AUX_I2C_REPLY_DEFER: + DRM_DEBUG_KMS("aux_i2c defer\n"); + udelay(400); + break; + default: + DRM_ERROR("aux_i2c invalid reply 0x%02x\n", ack); + return -EREMOTEIO; + } + }
- return MODE_OK; + DRM_ERROR("aux i2c too many retries, giving up\n"); + return -EREMOTEIO; }
+/***** general DP utility functions *****/ + static u8 dp_link_status(u8 link_status[DP_LINK_STATUS_SIZE], int r) { return link_status[r - DP_LANE0_1_STATUS]; @@ -242,7 +326,7 @@ static bool dp_channel_eq_ok(u8 link_status[DP_LINK_STATUS_SIZE], return true; }
-static u8 dp_get_adjust_request_voltage(uint8_t link_status[DP_LINK_STATUS_SIZE], +static u8 dp_get_adjust_request_voltage(u8 link_status[DP_LINK_STATUS_SIZE], int lane)
{ @@ -255,7 +339,7 @@ static u8 dp_get_adjust_request_voltage(uint8_t link_status[DP_LINK_STATUS_SIZE] return ((l >> s) & 0x3) << DP_TRAIN_VOLTAGE_SWING_SHIFT; }
-static u8 dp_get_adjust_request_pre_emphasis(uint8_t link_status[DP_LINK_STATUS_SIZE], +static u8 dp_get_adjust_request_pre_emphasis(u8 link_status[DP_LINK_STATUS_SIZE], int lane) { int i = DP_ADJUST_REQUEST_LANE0_1 + (lane >> 1); @@ -267,22 +351,8 @@ static u8 dp_get_adjust_request_pre_emphasis(uint8_t link_status[DP_LINK_STATUS_ return ((l >> s) & 0x3) << DP_TRAIN_PRE_EMPHASIS_SHIFT; }
-/* XXX fix me -- chip specific */ #define DP_VOLTAGE_MAX DP_TRAIN_VOLTAGE_SWING_1200 -static u8 dp_pre_emphasis_max(u8 voltage_swing) -{ - switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) { - case DP_TRAIN_VOLTAGE_SWING_400: - return DP_TRAIN_PRE_EMPHASIS_6; - case DP_TRAIN_VOLTAGE_SWING_600: - return DP_TRAIN_PRE_EMPHASIS_6; - case DP_TRAIN_VOLTAGE_SWING_800: - return DP_TRAIN_PRE_EMPHASIS_3_5; - case DP_TRAIN_VOLTAGE_SWING_1200: - default: - return DP_TRAIN_PRE_EMPHASIS_0; - } -} +#define DP_PRE_EMPHASIS_MAX DP_TRAIN_PRE_EMPHASIS_9_5
static void dp_get_adjust_train(u8 link_status[DP_LINK_STATUS_SIZE], int lane_count, @@ -308,10 +378,10 @@ static void dp_get_adjust_train(u8 link_status[DP_LINK_STATUS_SIZE], }
if (v >= DP_VOLTAGE_MAX) - v = DP_VOLTAGE_MAX | DP_TRAIN_MAX_SWING_REACHED; + v |= DP_TRAIN_MAX_SWING_REACHED;
- if (p >= dp_pre_emphasis_max(v)) - p = dp_pre_emphasis_max(v) | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED; + if (p >= DP_PRE_EMPHASIS_MAX) + p |= DP_TRAIN_MAX_PRE_EMPHASIS_REACHED;
DRM_DEBUG_KMS("using signal parameters: voltage %s pre_emph %s\n", voltage_names[(v & DP_TRAIN_VOLTAGE_SWING_MASK) >> DP_TRAIN_VOLTAGE_SWING_SHIFT], @@ -321,138 +391,109 @@ 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 */ -static int radeon_process_aux_ch(struct radeon_i2c_chan *chan, - u8 *send, int send_bytes, - u8 *recv, int recv_size, - u8 delay, u8 *ack) +/* convert bits per color to bits per pixel */ +/* get bpc from the EDID */ +static int convert_bpc_to_bpp(int bpc) { - struct drm_device *dev = chan->dev; - struct radeon_device *rdev = dev->dev_private; - union aux_channel_transaction args; - int index = GetIndexIntoMasterTable(COMMAND, ProcessAuxChannelTransaction); - unsigned char *base; - int recv_bytes; - - memset(&args, 0, sizeof(args)); - - base = (unsigned char *)rdev->mode_info.atom_context->scratch; - - memcpy(base, send, send_bytes); - - 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; - - atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); - - *ack = args.v1.ucReplyStatus; - - /* timeout */ - if (args.v1.ucReplyStatus == 1) { - DRM_DEBUG_KMS("dp_aux_ch timeout\n"); - return -ETIMEDOUT; - } + if (bpc == 0) + return 24; + else + return bpc * 3; +}
- /* flags not zero */ - if (args.v1.ucReplyStatus == 2) { - DRM_DEBUG_KMS("dp_aux_ch flags not zero\n"); - return -EBUSY; - } +/* get the max pix clock supported by the link rate and lane num */ +static int dp_get_max_dp_pix_clock(int link_rate, + int lane_num, + int bpp) +{ + return (link_rate * lane_num * 8) / bpp; +}
- /* error */ - if (args.v1.ucReplyStatus == 3) { - DRM_DEBUG_KMS("dp_aux_ch error\n"); - return -EIO; +static int dp_get_max_link_rate(u8 dpcd[DP_DPCD_SIZE]) +{ + switch (dpcd[DP_MAX_LINK_RATE]) { + case DP_LINK_BW_1_62: + default: + return 162000; + case DP_LINK_BW_2_7: + return 270000; + case DP_LINK_BW_5_4: + return 540000; } - - recv_bytes = args.v1.ucDataOutLen; - if (recv_bytes > recv_size) - recv_bytes = recv_size; - - if (recv && recv_size) - memcpy(recv, base + 16, recv_bytes); - - return recv_bytes; }
-static int radeon_dp_aux_native_write(struct radeon_connector *radeon_connector, - u16 address, u8 *send, u8 send_bytes, u8 delay) +static u8 dp_get_max_lane_number(u8 dpcd[DP_DPCD_SIZE]) { - struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; - int ret; - u8 msg[20]; - int msg_bytes = send_bytes + 4; - u8 ack; + return dpcd[DP_MAX_LANE_COUNT] & DP_MAX_LANE_COUNT_MASK; +}
- if (send_bytes > 16) - return -1; +static u8 dp_get_dp_link_rate_coded(int link_rate) +{ + switch (link_rate) { + case 162000: + default: + return DP_LINK_BW_1_62; + case 270000: + return DP_LINK_BW_2_7; + case 540000: + return DP_LINK_BW_5_4; + } +}
- msg[0] = address; - msg[1] = address >> 8; - msg[2] = AUX_NATIVE_WRITE << 4; - msg[3] = (msg_bytes << 4) | (send_bytes - 1); - memcpy(&msg[4], send, send_bytes); +/***** radeon specific DP functions *****/
- while (1) { - ret = radeon_process_aux_ch(dig_connector->dp_i2c_bus, - msg, msg_bytes, NULL, 0, delay, &ack); - if (ret < 0) - return ret; - if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK) - break; - else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER) - udelay(400); - else - return -EIO; +/* First get the min lane# when low rate is used according to pixel clock + * (prefer low rate), second check max lane# supported by DP panel, + * if the max lane# < low rate lane# then use max lane# instead. + */ +static int radeon_dp_get_dp_lane_number(struct drm_connector *connector, + u8 dpcd[DP_DPCD_SIZE], + int pix_clock) +{ + int bpp = convert_bpc_to_bpp(connector->display_info.bpc); + int max_link_rate = dp_get_max_link_rate(dpcd); + int max_lane_num = dp_get_max_lane_number(dpcd); + int lane_num; + int max_dp_pix_clock; + + for (lane_num = 1; lane_num < max_lane_num; lane_num <<= 1) { + max_dp_pix_clock = dp_get_max_dp_pix_clock(max_link_rate, lane_num, bpp); + if (pix_clock <= max_dp_pix_clock) + break; }
- return send_bytes; + return lane_num; }
-static int radeon_dp_aux_native_read(struct radeon_connector *radeon_connector, - u16 address, u8 *recv, int recv_bytes, u8 delay) +static int radeon_dp_get_dp_link_clock(struct drm_connector *connector, + u8 dpcd[DP_DPCD_SIZE], + int pix_clock) { - struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; - u8 msg[4]; - int msg_bytes = 4; - u8 ack; - int ret; - - msg[0] = address; - msg[1] = address >> 8; - msg[2] = AUX_NATIVE_READ << 4; - msg[3] = (msg_bytes << 4) | (recv_bytes - 1); - - while (1) { - ret = radeon_process_aux_ch(dig_connector->dp_i2c_bus, - msg, msg_bytes, recv, recv_bytes, delay, &ack); - if (ret == 0) - return -EPROTO; - if (ret < 0) - return ret; - if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK) - return ret; - else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER) - udelay(400); - else - return -EIO; + int bpp = convert_bpc_to_bpp(connector->display_info.bpc); + int lane_num, max_pix_clock; + + if (radeon_connector_encoder_is_dp_bridge(connector)) + return 270000; + + lane_num = radeon_dp_get_dp_lane_number(connector, dpcd, pix_clock); + max_pix_clock = dp_get_max_dp_pix_clock(162000, lane_num, bpp); + if (pix_clock <= max_pix_clock) + return 162000; + max_pix_clock = dp_get_max_dp_pix_clock(270000, lane_num, bpp); + if (pix_clock <= max_pix_clock) + return 270000; + if (radeon_connector_is_dp12_capable(connector)) { + max_pix_clock = dp_get_max_dp_pix_clock(540000, lane_num, bpp); + if (pix_clock <= max_pix_clock) + return 540000; } + + return dp_get_max_link_rate(dpcd); }
-/* radeon dp functions */ static u8 radeon_dp_encoder_service(struct radeon_device *rdev, int action, int dp_clock, - uint8_t ucconfig, uint8_t lane_num) + u8 ucconfig, u8 lane_num) { DP_ENCODER_SERVICE_PARAMETERS args; int index = GetIndexIntoMasterTable(COMMAND, DPEncoderService); @@ -482,55 +523,81 @@ bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector) { struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; u8 msg[25]; - int ret; + int ret, i;
ret = radeon_dp_aux_native_read(radeon_connector, DP_DPCD_REV, msg, 8, 0); if (ret > 0) { memcpy(dig_connector->dpcd, msg, 8); - { - int i; - DRM_DEBUG_KMS("DPCD: "); - for (i = 0; i < 8; i++) - DRM_DEBUG_KMS("%02x ", msg[i]); - DRM_DEBUG_KMS("\n"); - } + DRM_DEBUG_KMS("DPCD: "); + for (i = 0; i < 8; i++) + DRM_DEBUG_KMS("%02x ", msg[i]); + DRM_DEBUG_KMS("\n"); return true; } dig_connector->dpcd[0] = 0; return false; }
+static void radeon_dp_set_panel_mode(struct drm_encoder *encoder, + struct drm_connector *connector) +{ + struct drm_device *dev = encoder->dev; + struct radeon_device *rdev = dev->dev_private; + int panel_mode = DP_PANEL_MODE_EXTERNAL_DP_MODE; + + if (!ASIC_IS_DCE4(rdev)) + return; + + if (radeon_connector_encoder_is_dp_bridge(connector)) + panel_mode = DP_PANEL_MODE_INTERNAL_DP1_MODE; + + atombios_dig_encoder_setup(encoder, + ATOM_ENCODER_CMD_SETUP_PANEL_MODE, + panel_mode); +} + void radeon_dp_set_link_config(struct drm_connector *connector, struct drm_display_mode *mode) { - struct radeon_connector *radeon_connector; + struct radeon_connector *radeon_connector = to_radeon_connector(connector); struct radeon_connector_atom_dig *dig_connector;
- if ((connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) && - (connector->connector_type != DRM_MODE_CONNECTOR_eDP)) - return; - - radeon_connector = to_radeon_connector(connector); if (!radeon_connector->con_priv) return; dig_connector = radeon_connector->con_priv;
- dig_connector->dp_clock = - dp_link_clock_for_mode_clock(dig_connector->dpcd, mode->clock); - dig_connector->dp_lane_count = - dp_lanes_for_mode_clock(dig_connector->dpcd, mode->clock); + if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) || + (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) { + dig_connector->dp_clock = + radeon_dp_get_dp_link_clock(connector, dig_connector->dpcd, mode->clock); + dig_connector->dp_lane_count = + radeon_dp_get_dp_lane_number(connector, dig_connector->dpcd, mode->clock); + } }
-int radeon_dp_mode_valid_helper(struct radeon_connector *radeon_connector, +int radeon_dp_mode_valid_helper(struct drm_connector *connector, struct drm_display_mode *mode) { - struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; + struct radeon_connector *radeon_connector = to_radeon_connector(connector); + struct radeon_connector_atom_dig *dig_connector; + int dp_clock;
- return dp_mode_valid(dig_connector->dpcd, mode->clock); + if (!radeon_connector->con_priv) + return MODE_CLOCK_HIGH; + dig_connector = radeon_connector->con_priv; + + dp_clock = + radeon_dp_get_dp_link_clock(connector, dig_connector->dpcd, mode->clock); + + if ((dp_clock == 540000) && + (!radeon_connector_is_dp12_capable(connector))) + return MODE_CLOCK_HIGH; + + return MODE_OK; }
-static bool atom_dp_get_link_status(struct radeon_connector *radeon_connector, - u8 link_status[DP_LINK_STATUS_SIZE]) +static bool radeon_dp_get_link_status(struct radeon_connector *radeon_connector, + u8 link_status[DP_LINK_STATUS_SIZE]) { int ret; ret = radeon_dp_aux_native_read(radeon_connector, DP_LANE0_1_STATUS, @@ -551,325 +618,316 @@ bool radeon_dp_needs_link_train(struct radeon_connector *radeon_connector) struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; u8 link_status[DP_LINK_STATUS_SIZE];
- if (!atom_dp_get_link_status(radeon_connector, link_status)) + if (!radeon_dp_get_link_status(radeon_connector, link_status)) return false; if (dp_channel_eq_ok(link_status, dig_connector->dp_lane_count)) return false; return true; }
-static void dp_set_power(struct radeon_connector *radeon_connector, u8 power_state) -{ - struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; - - if (dig_connector->dpcd[0] >= 0x11) { - radeon_dp_aux_native_write(radeon_connector, DP_SET_POWER, - &power_state, 1, 0); - } -} - -static void dp_set_downspread(struct radeon_connector *radeon_connector, u8 downspread) -{ - radeon_dp_aux_native_write(radeon_connector, DP_DOWNSPREAD_CTRL, - &downspread, 1, 0); -} +struct radeon_dp_link_train_info { + struct radeon_device *rdev; + struct drm_encoder *encoder; + struct drm_connector *connector; + struct radeon_connector *radeon_connector; + int enc_id; + int dp_clock; + int dp_lane_count; + int rd_interval; + bool tp3_supported; + u8 dpcd[8]; + u8 train_set[4]; + u8 link_status[DP_LINK_STATUS_SIZE]; + u8 tries; +};
-static void dp_set_link_bw_lanes(struct radeon_connector *radeon_connector, - u8 link_configuration[DP_LINK_CONFIGURATION_SIZE]) +static void radeon_dp_update_vs_emph(struct radeon_dp_link_train_info *dp_info) { - radeon_dp_aux_native_write(radeon_connector, DP_LINK_BW_SET, - link_configuration, 2, 0); + /* set the initial vs/emph on the source */ + atombios_dig_transmitter_setup(dp_info->encoder, + ATOM_TRANSMITTER_ACTION_SETUP_VSEMPH, + 0, dp_info->train_set[0]); /* sets all lanes at once */ + + /* set the vs/emph on the sink */ + radeon_dp_aux_native_write(dp_info->radeon_connector, DP_TRAINING_LANE0_SET, + dp_info->train_set, dp_info->dp_lane_count, 0); }
-static void dp_update_dpvs_emph(struct radeon_connector *radeon_connector, - struct drm_encoder *encoder, - u8 train_set[4]) +static void radeon_dp_set_tp(struct radeon_dp_link_train_info *dp_info, int tp) { - struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; - int i; - - for (i = 0; i < dig_connector->dp_lane_count; i++) - atombios_dig_transmitter_setup(encoder, - ATOM_TRANSMITTER_ACTION_SETUP_VSEMPH, - i, train_set[i]); + int rtp = 0;
- radeon_dp_aux_native_write(radeon_connector, DP_TRAINING_LANE0_SET, - train_set, dig_connector->dp_lane_count, 0); -} + /* set training pattern on the source */ + if (ASIC_IS_DCE4(dp_info->rdev)) { + switch (tp) { + case DP_TRAINING_PATTERN_1: + rtp = ATOM_ENCODER_CMD_DP_LINK_TRAINING_PATTERN1; + break; + case DP_TRAINING_PATTERN_2: + rtp = ATOM_ENCODER_CMD_DP_LINK_TRAINING_PATTERN2; + break; + case DP_TRAINING_PATTERN_3: + rtp = ATOM_ENCODER_CMD_DP_LINK_TRAINING_PATTERN3; + break; + } + atombios_dig_encoder_setup(dp_info->encoder, rtp, 0); + } else { + switch (tp) { + case DP_TRAINING_PATTERN_1: + rtp = 0; + break; + case DP_TRAINING_PATTERN_2: + rtp = 1; + break; + } + radeon_dp_encoder_service(dp_info->rdev, ATOM_DP_ACTION_TRAINING_PATTERN_SEL, + dp_info->dp_clock, dp_info->enc_id, rtp); + }
-static void dp_set_training(struct radeon_connector *radeon_connector, - u8 training) -{ - radeon_dp_aux_native_write(radeon_connector, DP_TRAINING_PATTERN_SET, - &training, 1, 0); + /* enable training pattern on the sink */ + radeon_write_dpcd_reg(dp_info->radeon_connector, DP_TRAINING_PATTERN_SET, tp); }
-void dp_link_train(struct drm_encoder *encoder, - struct drm_connector *connector) +static int radeon_dp_link_train_init(struct radeon_dp_link_train_info *dp_info) { - struct drm_device *dev = encoder->dev; - struct radeon_device *rdev = dev->dev_private; - struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); - struct radeon_encoder_atom_dig *dig; - struct radeon_connector *radeon_connector; - struct radeon_connector_atom_dig *dig_connector; - int enc_id = 0; - bool clock_recovery, channel_eq; - u8 link_status[DP_LINK_STATUS_SIZE]; - u8 link_configuration[DP_LINK_CONFIGURATION_SIZE]; - u8 tries, voltage; - u8 train_set[4]; - int i; + u8 tmp;
- if ((connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) && - (connector->connector_type != DRM_MODE_CONNECTOR_eDP)) - return; + /* power up the sink */ + if (dp_info->dpcd[0] >= 0x11) + radeon_write_dpcd_reg(dp_info->radeon_connector, + DP_SET_POWER, DP_SET_POWER_D0); + + /* possibly enable downspread on the sink */ + if (dp_info->dpcd[3] & 0x1) + radeon_write_dpcd_reg(dp_info->radeon_connector, + DP_DOWNSPREAD_CTRL, DP_SPREAD_AMP_0_5); + else + radeon_write_dpcd_reg(dp_info->radeon_connector, + DP_DOWNSPREAD_CTRL, 0);
- if (!radeon_encoder->enc_priv) - return; - dig = radeon_encoder->enc_priv; + radeon_dp_set_panel_mode(dp_info->encoder, dp_info->connector);
- radeon_connector = to_radeon_connector(connector); - if (!radeon_connector->con_priv) - return; - dig_connector = radeon_connector->con_priv; + /* set the lane count on the sink */ + tmp = dp_info->dp_lane_count; + if (dp_info->dpcd[0] >= 0x11) + tmp |= DP_LANE_COUNT_ENHANCED_FRAME_EN; + radeon_write_dpcd_reg(dp_info->radeon_connector, DP_LANE_COUNT_SET, tmp);
- if (dig->dig_encoder) - enc_id |= ATOM_DP_CONFIG_DIG2_ENCODER; - else - enc_id |= ATOM_DP_CONFIG_DIG1_ENCODER; - if (dig->linkb) - enc_id |= ATOM_DP_CONFIG_LINK_B; - else - enc_id |= ATOM_DP_CONFIG_LINK_A; + /* set the link rate on the sink */ + tmp = dp_get_dp_link_rate_coded(dp_info->dp_clock); + radeon_write_dpcd_reg(dp_info->radeon_connector, DP_LINK_BW_SET, tmp);
- memset(link_configuration, 0, DP_LINK_CONFIGURATION_SIZE); - if (dig_connector->dp_clock == 270000) - link_configuration[0] = DP_LINK_BW_2_7; + /* start training on the source */ + if (ASIC_IS_DCE4(dp_info->rdev)) + atombios_dig_encoder_setup(dp_info->encoder, + ATOM_ENCODER_CMD_DP_LINK_TRAINING_START, 0); else - link_configuration[0] = DP_LINK_BW_1_62; - link_configuration[1] = dig_connector->dp_lane_count; - if (dig_connector->dpcd[0] >= 0x11) - link_configuration[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN; + radeon_dp_encoder_service(dp_info->rdev, ATOM_DP_ACTION_TRAINING_START, + dp_info->dp_clock, dp_info->enc_id, 0);
- /* power up the sink */ - dp_set_power(radeon_connector, DP_SET_POWER_D0); /* disable the training pattern on the sink */ - dp_set_training(radeon_connector, DP_TRAINING_PATTERN_DISABLE); - /* set link bw and lanes on the sink */ - dp_set_link_bw_lanes(radeon_connector, link_configuration); - /* disable downspread on the sink */ - dp_set_downspread(radeon_connector, 0); - if (ASIC_IS_DCE4(rdev)) { - /* start training on the source */ - atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_LINK_TRAINING_START, 0); - /* set training pattern 1 on the source */ - atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_LINK_TRAINING_PATTERN1, 0); - } 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); - } + radeon_write_dpcd_reg(dp_info->radeon_connector, + DP_TRAINING_PATTERN_SET, + DP_TRAINING_PATTERN_DISABLE); + + return 0; +}
- /* set initial vs/emph */ - memset(train_set, 0, 4); +static int radeon_dp_link_train_finish(struct radeon_dp_link_train_info *dp_info) +{ udelay(400); - /* set training pattern 1 on the sink */ - dp_set_training(radeon_connector, DP_TRAINING_PATTERN_1);
- dp_update_dpvs_emph(radeon_connector, encoder, train_set); + /* disable the training pattern on the sink */ + radeon_write_dpcd_reg(dp_info->radeon_connector, + DP_TRAINING_PATTERN_SET, + DP_TRAINING_PATTERN_DISABLE); + + /* disable the training pattern on the source */ + if (ASIC_IS_DCE4(dp_info->rdev)) + atombios_dig_encoder_setup(dp_info->encoder, + ATOM_ENCODER_CMD_DP_LINK_TRAINING_COMPLETE, 0); + else + radeon_dp_encoder_service(dp_info->rdev, ATOM_DP_ACTION_TRAINING_COMPLETE, + dp_info->dp_clock, dp_info->enc_id, 0); + + return 0; +} + +static int radeon_dp_link_train_cr(struct radeon_dp_link_train_info *dp_info) +{ + bool clock_recovery; + u8 voltage; + int i; + + radeon_dp_set_tp(dp_info, DP_TRAINING_PATTERN_1); + memset(dp_info->train_set, 0, 4); + radeon_dp_update_vs_emph(dp_info); + + udelay(400);
/* clock recovery loop */ clock_recovery = false; - tries = 0; + dp_info->tries = 0; voltage = 0xff; - for (;;) { - udelay(100); - if (!atom_dp_get_link_status(radeon_connector, link_status)) + while (1) { + if (dp_info->rd_interval == 0) + udelay(100); + else + mdelay(dp_info->rd_interval * 4); + + if (!radeon_dp_get_link_status(dp_info->radeon_connector, dp_info->link_status)) break;
- if (dp_clock_recovery_ok(link_status, dig_connector->dp_lane_count)) { + if (dp_clock_recovery_ok(dp_info->link_status, dp_info->dp_lane_count)) { clock_recovery = true; break; }
- for (i = 0; i < dig_connector->dp_lane_count; i++) { - if ((train_set[i] & DP_TRAIN_MAX_SWING_REACHED) == 0) + for (i = 0; i < dp_info->dp_lane_count; i++) { + if ((dp_info->train_set[i] & DP_TRAIN_MAX_SWING_REACHED) == 0) break; } - if (i == dig_connector->dp_lane_count) { + if (i == dp_info->dp_lane_count) { DRM_ERROR("clock recovery reached max voltage\n"); break; }
- if ((train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK) == voltage) { - ++tries; - if (tries == 5) { + if ((dp_info->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK) == voltage) { + ++dp_info->tries; + if (dp_info->tries == 5) { DRM_ERROR("clock recovery tried 5 times\n"); break; } } else - tries = 0; + dp_info->tries = 0;
- voltage = train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK; + voltage = dp_info->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK;
/* Compute new train_set as requested by sink */ - dp_get_adjust_train(link_status, dig_connector->dp_lane_count, train_set); - dp_update_dpvs_emph(radeon_connector, encoder, train_set); + dp_get_adjust_train(dp_info->link_status, dp_info->dp_lane_count, dp_info->train_set); + + radeon_dp_update_vs_emph(dp_info); } - if (!clock_recovery) + if (!clock_recovery) { DRM_ERROR("clock recovery failed\n"); - else + return -1; + } else { DRM_DEBUG_KMS("clock recovery at voltage %d pre-emphasis %d\n", - train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK, - (train_set[0] & DP_TRAIN_PRE_EMPHASIS_MASK) >> + dp_info->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK, + (dp_info->train_set[0] & DP_TRAIN_PRE_EMPHASIS_MASK) >> DP_TRAIN_PRE_EMPHASIS_SHIFT); + return 0; + } +}
+static int radeon_dp_link_train_ce(struct radeon_dp_link_train_info *dp_info) +{ + bool channel_eq;
- /* set training pattern 2 on the sink */ - dp_set_training(radeon_connector, DP_TRAINING_PATTERN_2); - /* set training pattern 2 on the source */ - if (ASIC_IS_DCE4(rdev)) - atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_LINK_TRAINING_PATTERN2, 0); + if (dp_info->tp3_supported) + radeon_dp_set_tp(dp_info, DP_TRAINING_PATTERN_3); else - radeon_dp_encoder_service(rdev, ATOM_DP_ACTION_TRAINING_PATTERN_SEL, - dig_connector->dp_clock, enc_id, 1); + radeon_dp_set_tp(dp_info, DP_TRAINING_PATTERN_2);
/* channel equalization loop */ - tries = 0; + dp_info->tries = 0; channel_eq = false; - for (;;) { - udelay(400); - if (!atom_dp_get_link_status(radeon_connector, link_status)) + while (1) { + if (dp_info->rd_interval == 0) + udelay(400); + else + mdelay(dp_info->rd_interval * 4); + + if (!radeon_dp_get_link_status(dp_info->radeon_connector, dp_info->link_status)) break;
- if (dp_channel_eq_ok(link_status, dig_connector->dp_lane_count)) { + if (dp_channel_eq_ok(dp_info->link_status, dp_info->dp_lane_count)) { channel_eq = true; break; }
/* Try 5 times */ - if (tries > 5) { + if (dp_info->tries > 5) { DRM_ERROR("channel eq failed: 5 tries\n"); break; }
/* Compute new train_set as requested by sink */ - dp_get_adjust_train(link_status, dig_connector->dp_lane_count, train_set); - dp_update_dpvs_emph(radeon_connector, encoder, train_set); + dp_get_adjust_train(dp_info->link_status, dp_info->dp_lane_count, dp_info->train_set);
- tries++; + radeon_dp_update_vs_emph(dp_info); + dp_info->tries++; }
- if (!channel_eq) + if (!channel_eq) { DRM_ERROR("channel eq failed\n"); - else + return -1; + } else { DRM_DEBUG_KMS("channel eq at voltage %d pre-emphasis %d\n", - train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK, - (train_set[0] & DP_TRAIN_PRE_EMPHASIS_MASK) + dp_info->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK, + (dp_info->train_set[0] & DP_TRAIN_PRE_EMPHASIS_MASK) >> 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, 0); - else - radeon_dp_encoder_service(rdev, ATOM_DP_ACTION_TRAINING_COMPLETE, - dig_connector->dp_clock, enc_id, 0); + return 0; + } }
-int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode, - u8 write_byte, u8 *read_byte) +void radeon_dp_link_train(struct drm_encoder *encoder, + struct drm_connector *connector) { - struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data; - struct radeon_i2c_chan *auxch = (struct radeon_i2c_chan *)adapter; - u16 address = algo_data->address; - u8 msg[5]; - u8 reply[2]; - unsigned retry; - int msg_bytes; - int reply_bytes = 1; - int ret; - u8 ack; - - /* Set up the command byte */ - if (mode & MODE_I2C_READ) - msg[2] = AUX_I2C_READ << 4; - else - msg[2] = AUX_I2C_WRITE << 4; - - if (!(mode & MODE_I2C_STOP)) - msg[2] |= AUX_I2C_MOT << 4; - - msg[0] = address; - msg[1] = address >> 8; + struct drm_device *dev = encoder->dev; + struct radeon_device *rdev = dev->dev_private; + struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); + struct radeon_encoder_atom_dig *dig; + struct radeon_connector *radeon_connector; + struct radeon_connector_atom_dig *dig_connector; + struct radeon_dp_link_train_info dp_info; + u8 tmp;
- switch (mode) { - case MODE_I2C_WRITE: - msg_bytes = 5; - msg[3] = msg_bytes << 4; - msg[4] = write_byte; - break; - case MODE_I2C_READ: - msg_bytes = 4; - msg[3] = msg_bytes << 4; - break; - default: - msg_bytes = 4; - msg[3] = 3 << 4; - break; - } + if (!radeon_encoder->enc_priv) + return; + dig = radeon_encoder->enc_priv;
- for (retry = 0; retry < 4; retry++) { - ret = radeon_process_aux_ch(auxch, - msg, msg_bytes, reply, reply_bytes, 0, &ack); - if (ret < 0) { - DRM_DEBUG_KMS("aux_ch failed %d\n", ret); - return ret; - } + radeon_connector = to_radeon_connector(connector); + if (!radeon_connector->con_priv) + return; + dig_connector = radeon_connector->con_priv;
- switch (ack & AUX_NATIVE_REPLY_MASK) { - case AUX_NATIVE_REPLY_ACK: - /* I2C-over-AUX Reply field is only valid - * when paired with AUX ACK. - */ - break; - case AUX_NATIVE_REPLY_NACK: - DRM_DEBUG_KMS("aux_ch native nack\n"); - return -EREMOTEIO; - case AUX_NATIVE_REPLY_DEFER: - DRM_DEBUG_KMS("aux_ch native defer\n"); - udelay(400); - continue; - default: - DRM_ERROR("aux_ch invalid native reply 0x%02x\n", ack); - return -EREMOTEIO; - } + if ((dig_connector->dp_sink_type != CONNECTOR_OBJECT_ID_DISPLAYPORT) && + (dig_connector->dp_sink_type != CONNECTOR_OBJECT_ID_eDP)) + return;
- switch (ack & AUX_I2C_REPLY_MASK) { - case AUX_I2C_REPLY_ACK: - if (mode == MODE_I2C_READ) - *read_byte = reply[0]; - return ret; - case AUX_I2C_REPLY_NACK: - DRM_DEBUG_KMS("aux_i2c nack\n"); - return -EREMOTEIO; - case AUX_I2C_REPLY_DEFER: - DRM_DEBUG_KMS("aux_i2c defer\n"); - udelay(400); - break; - default: - DRM_ERROR("aux_i2c invalid reply 0x%02x\n", ack); - return -EREMOTEIO; - } - } + dp_info.enc_id = 0; + if (dig->dig_encoder) + dp_info.enc_id |= ATOM_DP_CONFIG_DIG2_ENCODER; + else + dp_info.enc_id |= ATOM_DP_CONFIG_DIG1_ENCODER; + if (dig->linkb) + dp_info.enc_id |= ATOM_DP_CONFIG_LINK_B; + else + dp_info.enc_id |= ATOM_DP_CONFIG_LINK_A;
- DRM_ERROR("aux i2c too many retries, giving up\n"); - return -EREMOTEIO; + dp_info.rd_interval = radeon_read_dpcd_reg(radeon_connector, DP_TRAINING_AUX_RD_INTERVAL); + tmp = radeon_read_dpcd_reg(radeon_connector, DP_MAX_LANE_COUNT); + if (ASIC_IS_DCE5(rdev) && (tmp & DP_TPS3_SUPPORTED)) + dp_info.tp3_supported = true; + else + dp_info.tp3_supported = false; + + memcpy(dp_info.dpcd, dig_connector->dpcd, 8); + dp_info.rdev = rdev; + dp_info.encoder = encoder; + dp_info.connector = connector; + dp_info.radeon_connector = radeon_connector; + dp_info.dp_lane_count = dig_connector->dp_lane_count; + dp_info.dp_clock = dig_connector->dp_clock; + + if (radeon_dp_link_train_init(&dp_info)) + goto done; + if (radeon_dp_link_train_cr(&dp_info)) + goto done; + if (radeon_dp_link_train_ce(&dp_info)) + goto done; +done: + if (radeon_dp_link_train_finish(&dp_info)) + return; } - diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 356feea..6c9e17f 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -59,7 +59,7 @@ void radeon_connector_hotplug(struct drm_connector *connector) (radeon_dp_getsinktype(radeon_connector) == CONNECTOR_OBJECT_ID_eDP)) { if (radeon_dp_needs_link_train(radeon_connector)) { if (connector->encoder) - dp_link_train(connector->encoder, connector); + radeon_dp_link_train(connector->encoder, connector); } } } @@ -1195,7 +1195,7 @@ static int radeon_dp_mode_valid(struct drm_connector *connector,
if ((radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) || (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) - return radeon_dp_mode_valid_helper(radeon_connector, mode); + return radeon_dp_mode_valid_helper(connector, mode); else return MODE_OK; } diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c index 11d7b33..73efb4e 100644 --- a/drivers/gpu/drm/radeon/radeon_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_encoders.c @@ -1417,7 +1417,9 @@ radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode) ATOM_TRANSMITTER_ACTION_POWER_ON); radeon_dig_connector->edp_on = true; } - dp_link_train(encoder, connector); + if (ASIC_IS_DCE4(rdev)) + atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_VIDEO_OFF, 0); + radeon_dp_link_train(encoder, connector); if (ASIC_IS_DCE4(rdev)) atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_VIDEO_ON, 0); } diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index ec2369e..37f57ba 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -471,12 +471,12 @@ extern bool radeon_connector_is_dp12_capable(struct drm_connector *connector);
extern void radeon_connector_hotplug(struct drm_connector *connector); extern bool radeon_dp_needs_link_train(struct radeon_connector *radeon_connector); -extern int radeon_dp_mode_valid_helper(struct radeon_connector *radeon_connector, +extern int radeon_dp_mode_valid_helper(struct drm_connector *connector, struct drm_display_mode *mode); extern void radeon_dp_set_link_config(struct drm_connector *connector, struct drm_display_mode *mode); -extern void dp_link_train(struct drm_encoder *encoder, - struct drm_connector *connector); +extern void radeon_dp_link_train(struct drm_encoder *encoder, + struct drm_connector *connector); extern u8 radeon_dp_getsinktype(struct radeon_connector *radeon_connector); extern bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector); extern void atombios_dig_encoder_setup(struct drm_encoder *encoder, int action, int panel_mode);