+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "reg_helper.h"
+
+#include "core_types.h"
+#include "link_encoder.h"
+#include "dcn10_link_encoder.h"
+#include "stream_encoder.h"
+#include "i2caux_interface.h"
+#include "dc_bios_types.h"
+
+#include "gpio_service_interface.h"
+
+#define CTX \
+ enc10->base.ctx
+#define DC_LOGGER \
+ enc10->base.ctx->logger
+
+#define REG(reg)\
+ (enc10->link_regs->reg)
+
+#undef FN
+#define FN(reg_name, field_name) \
+ enc10->link_shift->field_name, enc10->link_mask->field_name
+
+
+/*
+ * @brief
+ * Trigger Source Select
+ * ASIC-dependent, actual values for register programming
+ */
+#define DCN10_DIG_FE_SOURCE_SELECT_INVALID 0x0
+#define DCN10_DIG_FE_SOURCE_SELECT_DIGA 0x1
+#define DCN10_DIG_FE_SOURCE_SELECT_DIGB 0x2
+#define DCN10_DIG_FE_SOURCE_SELECT_DIGC 0x4
+#define DCN10_DIG_FE_SOURCE_SELECT_DIGD 0x08
+#define DCN10_DIG_FE_SOURCE_SELECT_DIGE 0x10
+#define DCN10_DIG_FE_SOURCE_SELECT_DIGF 0x20
+#define DCN10_DIG_FE_SOURCE_SELECT_DIGG 0x40
+
+enum {
+ DP_MST_UPDATE_MAX_RETRY = 50
+};
+
+
+
+static void aux_initialize(struct dcn10_link_encoder *enc10);
+
+
+static const struct link_encoder_funcs dcn10_lnk_enc_funcs = {
+ .validate_output_with_stream =
+ dcn10_link_encoder_validate_output_with_stream,
+ .hw_init = dcn10_link_encoder_hw_init,
+ .setup = dcn10_link_encoder_setup,
+ .enable_tmds_output = dcn10_link_encoder_enable_tmds_output,
+ .enable_dp_output = dcn10_link_encoder_enable_dp_output,
+ .enable_dp_mst_output = dcn10_link_encoder_enable_dp_mst_output,
+ .disable_output = dcn10_link_encoder_disable_output,
+ .dp_set_lane_settings = dcn10_link_encoder_dp_set_lane_settings,
+ .dp_set_phy_pattern = dcn10_link_encoder_dp_set_phy_pattern,
+ .update_mst_stream_allocation_table =
+ dcn10_link_encoder_update_mst_stream_allocation_table,
+ .psr_program_dp_dphy_fast_training =
+ dcn10_psr_program_dp_dphy_fast_training,
+ .psr_program_secondary_packet = dcn10_psr_program_secondary_packet,
+ .connect_dig_be_to_fe = dcn10_link_encoder_connect_dig_be_to_fe,
+ .enable_hpd = dcn10_link_encoder_enable_hpd,
+ .disable_hpd = dcn10_link_encoder_disable_hpd,
+ .is_dig_enabled = dcn10_is_dig_enabled,
+ .destroy = dcn10_link_encoder_destroy
+};
+
+static enum bp_result link_transmitter_control(
+ struct dcn10_link_encoder *enc10,
+ struct bp_transmitter_control *cntl)
+{
+ enum bp_result result;
+ struct dc_bios *bp = enc10->base.ctx->dc_bios;
+
+ result = bp->funcs->transmitter_control(bp, cntl);
+
+ return result;
+}
+
+static void enable_phy_bypass_mode(
+ struct dcn10_link_encoder *enc10,
+ bool enable)
+{
+ /* This register resides in DP back end block;
+ * transmitter is used for the offset
+ */
+ REG_UPDATE(DP_DPHY_CNTL, DPHY_BYPASS, enable);
+
+}
+
+static void disable_prbs_symbols(
+ struct dcn10_link_encoder *enc10,
+ bool disable)
+{
+ /* This register resides in DP back end block;
+ * transmitter is used for the offset
+ */
+ REG_UPDATE_4(DP_DPHY_CNTL,
+ DPHY_ATEST_SEL_LANE0, disable,
+ DPHY_ATEST_SEL_LANE1, disable,
+ DPHY_ATEST_SEL_LANE2, disable,
+ DPHY_ATEST_SEL_LANE3, disable);
+}
+
+static void disable_prbs_mode(
+ struct dcn10_link_encoder *enc10)
+{
+ REG_UPDATE(DP_DPHY_PRBS_CNTL, DPHY_PRBS_EN, 0);
+}
+
+static void program_pattern_symbols(
+ struct dcn10_link_encoder *enc10,
+ uint16_t pattern_symbols[8])
+{
+ /* This register resides in DP back end block;
+ * transmitter is used for the offset
+ */
+ REG_SET_3(DP_DPHY_SYM0, 0,
+ DPHY_SYM1, pattern_symbols[0],
+ DPHY_SYM2, pattern_symbols[1],
+ DPHY_SYM3, pattern_symbols[2]);
+
+ /* This register resides in DP back end block;
+ * transmitter is used for the offset
+ */
+ REG_SET_3(DP_DPHY_SYM1, 0,
+ DPHY_SYM4, pattern_symbols[3],
+ DPHY_SYM5, pattern_symbols[4],
+ DPHY_SYM6, pattern_symbols[5]);
+
+ /* This register resides in DP back end block;
+ * transmitter is used for the offset
+ */
+ REG_SET_2(DP_DPHY_SYM2, 0,
+ DPHY_SYM7, pattern_symbols[6],
+ DPHY_SYM8, pattern_symbols[7]);
+}
+
+static void set_dp_phy_pattern_d102(
+ struct dcn10_link_encoder *enc10)
+{
+ /* Disable PHY Bypass mode to setup the test pattern */
+ enable_phy_bypass_mode(enc10, false);
+
+ /* For 10-bit PRBS or debug symbols
+ * please use the following sequence:
+ *
+ * Enable debug symbols on the lanes
+ */
+ disable_prbs_symbols(enc10, true);
+
+ /* Disable PRBS mode */
+ disable_prbs_mode(enc10);
+
+ /* Program debug symbols to be output */
+ {
+ uint16_t pattern_symbols[8] = {
+ 0x2AA, 0x2AA, 0x2AA, 0x2AA,
+ 0x2AA, 0x2AA, 0x2AA, 0x2AA
+ };
+
+ program_pattern_symbols(enc10, pattern_symbols);
+ }
+
+ /* Enable phy bypass mode to enable the test pattern */
+
+ enable_phy_bypass_mode(enc10, true);
+}
+
+static void set_link_training_complete(
+ struct dcn10_link_encoder *enc10,
+ bool complete)
+{
+ /* This register resides in DP back end block;
+ * transmitter is used for the offset
+ */
+ REG_UPDATE(DP_LINK_CNTL, DP_LINK_TRAINING_COMPLETE, complete);
+
+}
+
+void dcn10_link_encoder_set_dp_phy_pattern_training_pattern(
+ struct link_encoder *enc,
+ uint32_t index)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+ /* Write Training Pattern */
+
+ REG_WRITE(DP_DPHY_TRAINING_PATTERN_SEL, index);
+
+ /* Set HW Register Training Complete to false */
+
+ set_link_training_complete(enc10, false);
+
+ /* Disable PHY Bypass mode to output Training Pattern */
+
+ enable_phy_bypass_mode(enc10, false);
+
+ /* Disable PRBS mode */
+ disable_prbs_mode(enc10);
+}
+
+static void setup_panel_mode(
+ struct dcn10_link_encoder *enc10,
+ enum dp_panel_mode panel_mode)
+{
+ uint32_t value;
+
+ ASSERT(REG(DP_DPHY_INTERNAL_CTRL));
+ value = REG_READ(DP_DPHY_INTERNAL_CTRL);
+
+ switch (panel_mode) {
+ case DP_PANEL_MODE_EDP:
+ value = 0x1;
+ break;
+ case DP_PANEL_MODE_SPECIAL:
+ value = 0x11;
+ break;
+ default:
+ value = 0x0;
+ break;
+ }
+
+ REG_WRITE(DP_DPHY_INTERNAL_CTRL, value);
+}
+
+static void set_dp_phy_pattern_symbol_error(
+ struct dcn10_link_encoder *enc10)
+{
+ /* Disable PHY Bypass mode to setup the test pattern */
+ enable_phy_bypass_mode(enc10, false);
+
+ /* program correct panel mode*/
+ setup_panel_mode(enc10, DP_PANEL_MODE_DEFAULT);
+
+ /* A PRBS23 pattern is used for most DP electrical measurements. */
+
+ /* Enable PRBS symbols on the lanes */
+ disable_prbs_symbols(enc10, false);
+
+ /* For PRBS23 Set bit DPHY_PRBS_SEL=1 and Set bit DPHY_PRBS_EN=1 */
+ REG_UPDATE_2(DP_DPHY_PRBS_CNTL,
+ DPHY_PRBS_SEL, 1,
+ DPHY_PRBS_EN, 1);
+
+ /* Enable phy bypass mode to enable the test pattern */
+ enable_phy_bypass_mode(enc10, true);
+}
+
+static void set_dp_phy_pattern_prbs7(
+ struct dcn10_link_encoder *enc10)
+{
+ /* Disable PHY Bypass mode to setup the test pattern */
+ enable_phy_bypass_mode(enc10, false);
+
+ /* A PRBS7 pattern is used for most DP electrical measurements. */
+
+ /* Enable PRBS symbols on the lanes */
+ disable_prbs_symbols(enc10, false);
+
+ /* For PRBS7 Set bit DPHY_PRBS_SEL=0 and Set bit DPHY_PRBS_EN=1 */
+ REG_UPDATE_2(DP_DPHY_PRBS_CNTL,
+ DPHY_PRBS_SEL, 0,
+ DPHY_PRBS_EN, 1);
+
+ /* Enable phy bypass mode to enable the test pattern */
+ enable_phy_bypass_mode(enc10, true);
+}
+
+static void set_dp_phy_pattern_80bit_custom(
+ struct dcn10_link_encoder *enc10,
+ const uint8_t *pattern)
+{
+ /* Disable PHY Bypass mode to setup the test pattern */
+ enable_phy_bypass_mode(enc10, false);
+
+ /* Enable debug symbols on the lanes */
+
+ disable_prbs_symbols(enc10, true);
+
+ /* Enable PHY bypass mode to enable the test pattern */
+ /* TODO is it really needed ? */
+
+ enable_phy_bypass_mode(enc10, true);
+
+ /* Program 80 bit custom pattern */
+ {
+ uint16_t pattern_symbols[8];
+
+ pattern_symbols[0] =
+ ((pattern[1] & 0x03) << 8) | pattern[0];
+ pattern_symbols[1] =
+ ((pattern[2] & 0x0f) << 6) | ((pattern[1] >> 2) & 0x3f);
+ pattern_symbols[2] =
+ ((pattern[3] & 0x3f) << 4) | ((pattern[2] >> 4) & 0x0f);
+ pattern_symbols[3] =
+ (pattern[4] << 2) | ((pattern[3] >> 6) & 0x03);
+ pattern_symbols[4] =
+ ((pattern[6] & 0x03) << 8) | pattern[5];
+ pattern_symbols[5] =
+ ((pattern[7] & 0x0f) << 6) | ((pattern[6] >> 2) & 0x3f);
+ pattern_symbols[6] =
+ ((pattern[8] & 0x3f) << 4) | ((pattern[7] >> 4) & 0x0f);
+ pattern_symbols[7] =
+ (pattern[9] << 2) | ((pattern[8] >> 6) & 0x03);
+
+ program_pattern_symbols(enc10, pattern_symbols);
+ }
+
+ /* Enable phy bypass mode to enable the test pattern */
+
+ enable_phy_bypass_mode(enc10, true);
+}
+
+static void set_dp_phy_pattern_hbr2_compliance_cp2520_2(
+ struct dcn10_link_encoder *enc10,
+ unsigned int cp2520_pattern)
+{
+
+ /* previously there is a register DP_HBR2_EYE_PATTERN
+ * that is enabled to get the pattern.
+ * But it does not work with the latest spec change,
+ * so we are programming the following registers manually.
+ *
+ * The following settings have been confirmed
+ * by Nick Chorney and Sandra Liu
+ */
+
+ /* Disable PHY Bypass mode to setup the test pattern */
+
+ enable_phy_bypass_mode(enc10, false);
+
+ /* Setup DIG encoder in DP SST mode */
+ enc10->base.funcs->setup(&enc10->base, SIGNAL_TYPE_DISPLAY_PORT);
+
+ /* ensure normal panel mode. */
+ setup_panel_mode(enc10, DP_PANEL_MODE_DEFAULT);
+
+ /* no vbid after BS (SR)
+ * DP_LINK_FRAMING_CNTL changed history Sandra Liu
+ * 11000260 / 11000104 / 110000FC
+ */
+ REG_UPDATE_3(DP_LINK_FRAMING_CNTL,
+ DP_IDLE_BS_INTERVAL, 0xFC,
+ DP_VBID_DISABLE, 1,
+ DP_VID_ENHANCED_FRAME_MODE, 1);
+
+ /* swap every BS with SR */
+ REG_UPDATE(DP_DPHY_SCRAM_CNTL, DPHY_SCRAMBLER_BS_COUNT, 0);
+
+ /* select cp2520 patterns */
+ if (REG(DP_DPHY_HBR2_PATTERN_CONTROL))
+ REG_UPDATE(DP_DPHY_HBR2_PATTERN_CONTROL,
+ DP_DPHY_HBR2_PATTERN_CONTROL, cp2520_pattern);
+ else
+ /* pre-DCE11 can only generate CP2520 pattern 2 */
+ ASSERT(cp2520_pattern == 2);
+
+ /* set link training complete */
+ set_link_training_complete(enc10, true);
+
+ /* disable video stream */
+ REG_UPDATE(DP_VID_STREAM_CNTL, DP_VID_STREAM_ENABLE, 0);
+
+ /* Disable PHY Bypass mode to setup the test pattern */
+ enable_phy_bypass_mode(enc10, false);
+}
+
+static void set_dp_phy_pattern_passthrough_mode(
+ struct dcn10_link_encoder *enc10,
+ enum dp_panel_mode panel_mode)
+{
+ /* program correct panel mode */
+ setup_panel_mode(enc10, panel_mode);
+
+ /* restore LINK_FRAMING_CNTL and DPHY_SCRAMBLER_BS_COUNT
+ * in case we were doing HBR2 compliance pattern before
+ */
+ REG_UPDATE_3(DP_LINK_FRAMING_CNTL,
+ DP_IDLE_BS_INTERVAL, 0x2000,
+ DP_VBID_DISABLE, 0,
+ DP_VID_ENHANCED_FRAME_MODE, 1);
+
+ REG_UPDATE(DP_DPHY_SCRAM_CNTL, DPHY_SCRAMBLER_BS_COUNT, 0x1FF);
+
+ /* set link training complete */
+ set_link_training_complete(enc10, true);
+
+ /* Disable PHY Bypass mode to setup the test pattern */
+ enable_phy_bypass_mode(enc10, false);
+
+ /* Disable PRBS mode */
+ disable_prbs_mode(enc10);
+}
+
+/* return value is bit-vector */
+static uint8_t get_frontend_source(
+ enum engine_id engine)
+{
+ switch (engine) {
+ case ENGINE_ID_DIGA:
+ return DCN10_DIG_FE_SOURCE_SELECT_DIGA;
+ case ENGINE_ID_DIGB:
+ return DCN10_DIG_FE_SOURCE_SELECT_DIGB;
+ case ENGINE_ID_DIGC:
+ return DCN10_DIG_FE_SOURCE_SELECT_DIGC;
+ case ENGINE_ID_DIGD:
+ return DCN10_DIG_FE_SOURCE_SELECT_DIGD;
+ case ENGINE_ID_DIGE:
+ return DCN10_DIG_FE_SOURCE_SELECT_DIGE;
+ case ENGINE_ID_DIGF:
+ return DCN10_DIG_FE_SOURCE_SELECT_DIGF;
+ case ENGINE_ID_DIGG:
+ return DCN10_DIG_FE_SOURCE_SELECT_DIGG;
+ default:
+ ASSERT_CRITICAL(false);
+ return DCN10_DIG_FE_SOURCE_SELECT_INVALID;
+ }
+}
+
+static void configure_encoder(
+ struct dcn10_link_encoder *enc10,
+ const struct dc_link_settings *link_settings)
+{
+ /* set number of lanes */
+
+ REG_SET(DP_CONFIG, 0,
+ DP_UDI_LANES, link_settings->lane_count - LANE_COUNT_ONE);
+
+ /* setup scrambler */
+ REG_UPDATE(DP_DPHY_SCRAM_CNTL, DPHY_SCRAMBLER_ADVANCE, 1);
+}
+
+void dcn10_psr_program_dp_dphy_fast_training(struct link_encoder *enc,
+ bool exit_link_training_required)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+
+ if (exit_link_training_required)
+ REG_UPDATE(DP_DPHY_FAST_TRAINING,
+ DPHY_RX_FAST_TRAINING_CAPABLE, 1);
+ else {
+ REG_UPDATE(DP_DPHY_FAST_TRAINING,
+ DPHY_RX_FAST_TRAINING_CAPABLE, 0);
+ /*In DCE 11, we are able to pre-program a Force SR register
+ * to be able to trigger SR symbol after 5 idle patterns
+ * transmitted. Upon PSR Exit, DMCU can trigger
+ * DPHY_LOAD_BS_COUNT_START = 1. Upon writing 1 to
+ * DPHY_LOAD_BS_COUNT_START and the internal counter
+ * reaches DPHY_LOAD_BS_COUNT, the next BS symbol will be
+ * replaced by SR symbol once.
+ */
+
+ REG_UPDATE(DP_DPHY_BS_SR_SWAP_CNTL, DPHY_LOAD_BS_COUNT, 0x5);
+ }
+}
+
+void dcn10_psr_program_secondary_packet(struct link_encoder *enc,
+ unsigned int sdp_transmit_line_num_deadline)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+
+ REG_UPDATE_2(DP_SEC_CNTL1,
+ DP_SEC_GSP0_LINE_NUM, sdp_transmit_line_num_deadline,
+ DP_SEC_GSP0_PRIORITY, 1);
+}
+
+bool dcn10_is_dig_enabled(struct link_encoder *enc)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+ uint32_t value;
+
+ REG_GET(DIG_BE_EN_CNTL, DIG_ENABLE, &value);
+ return value;
+}
+
+static void link_encoder_disable(struct dcn10_link_encoder *enc10)
+{
+ /* reset training pattern */
+ REG_SET(DP_DPHY_TRAINING_PATTERN_SEL, 0,
+ DPHY_TRAINING_PATTERN_SEL, 0);
+
+ /* reset training complete */
+ REG_UPDATE(DP_LINK_CNTL, DP_LINK_TRAINING_COMPLETE, 0);
+
+ /* reset panel mode */
+ setup_panel_mode(enc10, DP_PANEL_MODE_DEFAULT);
+}
+
+static void hpd_initialize(
+ struct dcn10_link_encoder *enc10)
+{
+ /* Associate HPD with DIG_BE */
+ enum hpd_source_id hpd_source = enc10->base.hpd_source;
+
+ REG_UPDATE(DIG_BE_CNTL, DIG_HPD_SELECT, hpd_source);
+}
+
+bool dcn10_link_encoder_validate_dvi_output(
+ const struct dcn10_link_encoder *enc10,
+ enum signal_type connector_signal,
+ enum signal_type signal,
+ const struct dc_crtc_timing *crtc_timing)
+{
+ uint32_t max_pixel_clock = TMDS_MAX_PIXEL_CLOCK;
+
+ if (signal == SIGNAL_TYPE_DVI_DUAL_LINK)
+ max_pixel_clock *= 2;
+
+ /* This handles the case of HDMI downgrade to DVI we don't want to
+ * we don't want to cap the pixel clock if the DDI is not DVI.
+ */
+ if (connector_signal != SIGNAL_TYPE_DVI_DUAL_LINK &&
+ connector_signal != SIGNAL_TYPE_DVI_SINGLE_LINK)
+ max_pixel_clock = enc10->base.features.max_hdmi_pixel_clock;
+
+ /* DVI only support RGB pixel encoding */
+ if (crtc_timing->pixel_encoding != PIXEL_ENCODING_RGB)
+ return false;
+
+ /*connect DVI via adpater's HDMI connector*/
+ if ((connector_signal == SIGNAL_TYPE_DVI_SINGLE_LINK ||
+ connector_signal == SIGNAL_TYPE_HDMI_TYPE_A) &&
+ signal != SIGNAL_TYPE_HDMI_TYPE_A &&
+ crtc_timing->pix_clk_khz > TMDS_MAX_PIXEL_CLOCK)
+ return false;
+ if (crtc_timing->pix_clk_khz < TMDS_MIN_PIXEL_CLOCK)
+ return false;
+
+ if (crtc_timing->pix_clk_khz > max_pixel_clock)
+ return false;
+
+ /* DVI supports 6/8bpp single-link and 10/16bpp dual-link */
+ switch (crtc_timing->display_color_depth) {
+ case COLOR_DEPTH_666:
+ case COLOR_DEPTH_888:
+ break;
+ case COLOR_DEPTH_101010:
+ case COLOR_DEPTH_161616:
+ if (signal != SIGNAL_TYPE_DVI_DUAL_LINK)
+ return false;
+ break;
+ default:
+ return false;
+ }
+
+ return true;
+}
+
+static bool dcn10_link_encoder_validate_hdmi_output(
+ const struct dcn10_link_encoder *enc10,
+ const struct dc_crtc_timing *crtc_timing,
+ int adjusted_pix_clk_khz)
+{
+ enum dc_color_depth max_deep_color =
+ enc10->base.features.max_hdmi_deep_color;
+
+ if (max_deep_color < crtc_timing->display_color_depth)
+ return false;
+
+ if (crtc_timing->display_color_depth < COLOR_DEPTH_888)
+ return false;
+ if (adjusted_pix_clk_khz < TMDS_MIN_PIXEL_CLOCK)
+ return false;
+
+ if ((adjusted_pix_clk_khz == 0) ||
+ (adjusted_pix_clk_khz > enc10->base.features.max_hdmi_pixel_clock))
+ return false;
+
+ /* DCE11 HW does not support 420 */
+ if (!enc10->base.features.ycbcr420_supported &&
+ crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
+ return false;
+
+ if (!enc10->base.features.flags.bits.HDMI_6GB_EN &&
+ adjusted_pix_clk_khz >= 300000)
+ return false;
+ return true;
+}
+
+bool dcn10_link_encoder_validate_dp_output(
+ const struct dcn10_link_encoder *enc10,
+ const struct dc_crtc_timing *crtc_timing)
+{
+ /* default RGB only */
+ if (crtc_timing->pixel_encoding == PIXEL_ENCODING_RGB)
+ return true;
+
+ if (enc10->base.features.flags.bits.IS_YCBCR_CAPABLE)
+ return true;
+
+ /* for DCE 8.x or later DP Y-only feature,
+ * we need ASIC cap + FeatureSupportDPYonly, not support 666
+ */
+ if (crtc_timing->flags.Y_ONLY &&
+ enc10->base.features.flags.bits.IS_YCBCR_CAPABLE &&
+ crtc_timing->display_color_depth != COLOR_DEPTH_666)
+ return true;
+
+ return false;
+}
+
+void dcn10_link_encoder_construct(
+ struct dcn10_link_encoder *enc10,
+ const struct encoder_init_data *init_data,
+ const struct encoder_feature_support *enc_features,
+ const struct dcn10_link_enc_registers *link_regs,
+ const struct dcn10_link_enc_aux_registers *aux_regs,
+ const struct dcn10_link_enc_hpd_registers *hpd_regs,
+ const struct dcn10_link_enc_shift *link_shift,
+ const struct dcn10_link_enc_mask *link_mask)
+{
+ struct bp_encoder_cap_info bp_cap_info = {0};
+ const struct dc_vbios_funcs *bp_funcs = init_data->ctx->dc_bios->funcs;
+ enum bp_result result = BP_RESULT_OK;
+
+ enc10->base.funcs = &dcn10_lnk_enc_funcs;
+ enc10->base.ctx = init_data->ctx;
+ enc10->base.id = init_data->encoder;
+
+ enc10->base.hpd_source = init_data->hpd_source;
+ enc10->base.connector = init_data->connector;
+
+ enc10->base.preferred_engine = ENGINE_ID_UNKNOWN;
+
+ enc10->base.features = *enc_features;
+
+ enc10->base.transmitter = init_data->transmitter;
+
+ /* set the flag to indicate whether driver poll the I2C data pin
+ * while doing the DP sink detect
+ */
+
+/* if (dal_adapter_service_is_feature_supported(as,
+ FEATURE_DP_SINK_DETECT_POLL_DATA_PIN))
+ enc10->base.features.flags.bits.
+ DP_SINK_DETECT_POLL_DATA_PIN = true;*/
+
+ enc10->base.output_signals =
+ SIGNAL_TYPE_DVI_SINGLE_LINK |
+ SIGNAL_TYPE_DVI_DUAL_LINK |
+ SIGNAL_TYPE_LVDS |
+ SIGNAL_TYPE_DISPLAY_PORT |
+ SIGNAL_TYPE_DISPLAY_PORT_MST |
+ SIGNAL_TYPE_EDP |
+ SIGNAL_TYPE_HDMI_TYPE_A;
+
+ /* For DCE 8.0 and 8.1, by design, UNIPHY is hardwired to DIG_BE.
+ * SW always assign DIG_FE 1:1 mapped to DIG_FE for non-MST UNIPHY.
+ * SW assign DIG_FE to non-MST UNIPHY first and MST last. So prefer
+ * DIG is per UNIPHY and used by SST DP, eDP, HDMI, DVI and LVDS.
+ * Prefer DIG assignment is decided by board design.
+ * For DCE 8.0, there are only max 6 UNIPHYs, we assume board design
+ * and VBIOS will filter out 7 UNIPHY for DCE 8.0.
+ * By this, adding DIGG should not hurt DCE 8.0.
+ * This will let DCE 8.1 share DCE 8.0 as much as possible
+ */
+
+ enc10->link_regs = link_regs;
+ enc10->aux_regs = aux_regs;
+ enc10->hpd_regs = hpd_regs;
+ enc10->link_shift = link_shift;
+ enc10->link_mask = link_mask;
+
+ switch (enc10->base.transmitter) {
+ case TRANSMITTER_UNIPHY_A:
+ enc10->base.preferred_engine = ENGINE_ID_DIGA;
+ break;
+ case TRANSMITTER_UNIPHY_B:
+ enc10->base.preferred_engine = ENGINE_ID_DIGB;
+ break;
+ case TRANSMITTER_UNIPHY_C:
+ enc10->base.preferred_engine = ENGINE_ID_DIGC;
+ break;
+ case TRANSMITTER_UNIPHY_D:
+ enc10->base.preferred_engine = ENGINE_ID_DIGD;
+ break;
+ case TRANSMITTER_UNIPHY_E:
+ enc10->base.preferred_engine = ENGINE_ID_DIGE;
+ break;
+ case TRANSMITTER_UNIPHY_F:
+ enc10->base.preferred_engine = ENGINE_ID_DIGF;
+ break;
+ case TRANSMITTER_UNIPHY_G:
+ enc10->base.preferred_engine = ENGINE_ID_DIGG;
+ break;
+ default:
+ ASSERT_CRITICAL(false);
+ enc10->base.preferred_engine = ENGINE_ID_UNKNOWN;
+ }
+
+ /* default to one to mirror Windows behavior */
+ enc10->base.features.flags.bits.HDMI_6GB_EN = 1;
+
+ result = bp_funcs->get_encoder_cap_info(enc10->base.ctx->dc_bios,
+ enc10->base.id, &bp_cap_info);
+
+ /* Override features with DCE-specific values */
+ if (result == BP_RESULT_OK) {
+ enc10->base.features.flags.bits.IS_HBR2_CAPABLE =
+ bp_cap_info.DP_HBR2_EN;
+ enc10->base.features.flags.bits.IS_HBR3_CAPABLE =
+ bp_cap_info.DP_HBR3_EN;
+ enc10->base.features.flags.bits.HDMI_6GB_EN = bp_cap_info.HDMI_6GB_EN;
+ } else {
+ DC_LOG_WARNING("%s: Failed to get encoder_cap_info from VBIOS with error code %d!\n",
+ __func__,
+ result);
+ }
+}
+
+bool dcn10_link_encoder_validate_output_with_stream(
+ struct link_encoder *enc,
+ const struct dc_stream_state *stream)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+ bool is_valid;
+
+ switch (stream->signal) {
+ case SIGNAL_TYPE_DVI_SINGLE_LINK:
+ case SIGNAL_TYPE_DVI_DUAL_LINK:
+ is_valid = dcn10_link_encoder_validate_dvi_output(
+ enc10,
+ stream->sink->link->connector_signal,
+ stream->signal,
+ &stream->timing);
+ break;
+ case SIGNAL_TYPE_HDMI_TYPE_A:
+ is_valid = dcn10_link_encoder_validate_hdmi_output(
+ enc10,
+ &stream->timing,
+ stream->phy_pix_clk);
+ break;
+ case SIGNAL_TYPE_DISPLAY_PORT:
+ case SIGNAL_TYPE_DISPLAY_PORT_MST:
+ is_valid = dcn10_link_encoder_validate_dp_output(
+ enc10, &stream->timing);
+ break;
+ case SIGNAL_TYPE_EDP:
+ is_valid = (stream->timing.pixel_encoding == PIXEL_ENCODING_RGB) ? true : false;
+ break;
+ case SIGNAL_TYPE_VIRTUAL:
+ is_valid = true;
+ break;
+ default:
+ is_valid = false;
+ break;
+ }
+
+ return is_valid;
+}
+
+void dcn10_link_encoder_hw_init(
+ struct link_encoder *enc)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+ struct bp_transmitter_control cntl = { 0 };
+ enum bp_result result;
+
+ cntl.action = TRANSMITTER_CONTROL_INIT;
+ cntl.engine_id = ENGINE_ID_UNKNOWN;
+ cntl.transmitter = enc10->base.transmitter;
+ cntl.connector_obj_id = enc10->base.connector;
+ cntl.lanes_number = LANE_COUNT_FOUR;
+ cntl.coherent = false;
+ cntl.hpd_sel = enc10->base.hpd_source;
+
+ if (enc10->base.connector.id == CONNECTOR_ID_EDP)
+ cntl.signal = SIGNAL_TYPE_EDP;
+
+ result = link_transmitter_control(enc10, &cntl);
+
+ if (result != BP_RESULT_OK) {
+ DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
+ __func__);
+ BREAK_TO_DEBUGGER();
+ return;
+ }
+
+ if (enc10->base.connector.id == CONNECTOR_ID_LVDS) {
+ cntl.action = TRANSMITTER_CONTROL_BACKLIGHT_BRIGHTNESS;
+
+ result = link_transmitter_control(enc10, &cntl);
+
+ ASSERT(result == BP_RESULT_OK);
+
+ }
+ aux_initialize(enc10);
+
+ /* reinitialize HPD.
+ * hpd_initialize() will pass DIG_FE id to HW context.
+ * All other routine within HW context will use fe_engine_offset
+ * as DIG_FE id even caller pass DIG_FE id.
+ * So this routine must be called first.
+ */
+ hpd_initialize(enc10);
+}
+
+void dcn10_link_encoder_destroy(struct link_encoder **enc)
+{
+ kfree(TO_DCN10_LINK_ENC(*enc));
+ *enc = NULL;
+}
+
+void dcn10_link_encoder_setup(
+ struct link_encoder *enc,
+ enum signal_type signal)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+
+ switch (signal) {
+ case SIGNAL_TYPE_EDP:
+ case SIGNAL_TYPE_DISPLAY_PORT:
+ /* DP SST */
+ REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 0);
+ break;
+ case SIGNAL_TYPE_LVDS:
+ /* LVDS */
+ REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 1);
+ break;
+ case SIGNAL_TYPE_DVI_SINGLE_LINK:
+ case SIGNAL_TYPE_DVI_DUAL_LINK:
+ /* TMDS-DVI */
+ REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 2);
+ break;
+ case SIGNAL_TYPE_HDMI_TYPE_A:
+ /* TMDS-HDMI */
+ REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 3);
+ break;
+ case SIGNAL_TYPE_DISPLAY_PORT_MST:
+ /* DP MST */
+ REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 5);
+ break;
+ default:
+ ASSERT_CRITICAL(false);
+ /* invalid mode ! */
+ break;
+ }
+
+}
+
+/* TODO: still need depth or just pass in adjusted pixel clock? */
+void dcn10_link_encoder_enable_tmds_output(
+ struct link_encoder *enc,
+ enum clock_source_id clock_source,
+ enum dc_color_depth color_depth,
+ enum signal_type signal,
+ uint32_t pixel_clock)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+ struct bp_transmitter_control cntl = { 0 };
+ enum bp_result result;
+
+ /* Enable the PHY */
+
+ cntl.action = TRANSMITTER_CONTROL_ENABLE;
+ cntl.engine_id = enc->preferred_engine;
+ cntl.transmitter = enc10->base.transmitter;
+ cntl.pll_id = clock_source;
+ cntl.signal = signal;
+ if (cntl.signal == SIGNAL_TYPE_DVI_DUAL_LINK)
+ cntl.lanes_number = 8;
+ else
+ cntl.lanes_number = 4;
+
+ cntl.hpd_sel = enc10->base.hpd_source;
+
+ cntl.pixel_clock = pixel_clock;
+ cntl.color_depth = color_depth;
+
+ result = link_transmitter_control(enc10, &cntl);
+
+ if (result != BP_RESULT_OK) {
+ DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
+ __func__);
+ BREAK_TO_DEBUGGER();
+ }
+}
+
+/* enables DP PHY output */
+void dcn10_link_encoder_enable_dp_output(
+ struct link_encoder *enc,
+ const struct dc_link_settings *link_settings,
+ enum clock_source_id clock_source)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+ struct bp_transmitter_control cntl = { 0 };
+ enum bp_result result;
+
+ /* Enable the PHY */
+
+ /* number_of_lanes is used for pixel clock adjust,
+ * but it's not passed to asic_control.
+ * We need to set number of lanes manually.
+ */
+ configure_encoder(enc10, link_settings);
+
+ cntl.action = TRANSMITTER_CONTROL_ENABLE;
+ cntl.engine_id = enc->preferred_engine;
+ cntl.transmitter = enc10->base.transmitter;
+ cntl.pll_id = clock_source;
+ cntl.signal = SIGNAL_TYPE_DISPLAY_PORT;
+ cntl.lanes_number = link_settings->lane_count;
+ cntl.hpd_sel = enc10->base.hpd_source;
+ cntl.pixel_clock = link_settings->link_rate
+ * LINK_RATE_REF_FREQ_IN_KHZ;
+ /* TODO: check if undefined works */
+ cntl.color_depth = COLOR_DEPTH_UNDEFINED;
+
+ result = link_transmitter_control(enc10, &cntl);
+
+ if (result != BP_RESULT_OK) {
+ DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
+ __func__);
+ BREAK_TO_DEBUGGER();
+ }
+}
+
+/* enables DP PHY output in MST mode */
+void dcn10_link_encoder_enable_dp_mst_output(
+ struct link_encoder *enc,
+ const struct dc_link_settings *link_settings,
+ enum clock_source_id clock_source)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+ struct bp_transmitter_control cntl = { 0 };
+ enum bp_result result;
+
+ /* Enable the PHY */
+
+ /* number_of_lanes is used for pixel clock adjust,
+ * but it's not passed to asic_control.
+ * We need to set number of lanes manually.
+ */
+ configure_encoder(enc10, link_settings);
+
+ cntl.action = TRANSMITTER_CONTROL_ENABLE;
+ cntl.engine_id = ENGINE_ID_UNKNOWN;
+ cntl.transmitter = enc10->base.transmitter;
+ cntl.pll_id = clock_source;
+ cntl.signal = SIGNAL_TYPE_DISPLAY_PORT_MST;
+ cntl.lanes_number = link_settings->lane_count;
+ cntl.hpd_sel = enc10->base.hpd_source;
+ cntl.pixel_clock = link_settings->link_rate
+ * LINK_RATE_REF_FREQ_IN_KHZ;
+ /* TODO: check if undefined works */
+ cntl.color_depth = COLOR_DEPTH_UNDEFINED;
+
+ result = link_transmitter_control(enc10, &cntl);
+
+ if (result != BP_RESULT_OK) {
+ DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
+ __func__);
+ BREAK_TO_DEBUGGER();
+ }
+}
+/*
+ * @brief
+ * Disable transmitter and its encoder
+ */
+void dcn10_link_encoder_disable_output(
+ struct link_encoder *enc,
+ enum signal_type signal)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+ struct bp_transmitter_control cntl = { 0 };
+ enum bp_result result;
+
+ if (!dcn10_is_dig_enabled(enc)) {
+ /* OF_SKIP_POWER_DOWN_INACTIVE_ENCODER */
+ return;
+ }
+ /* Power-down RX and disable GPU PHY should be paired.
+ * Disabling PHY without powering down RX may cause
+ * symbol lock loss, on which we will get DP Sink interrupt.
+ */
+
+ /* There is a case for the DP active dongles
+ * where we want to disable the PHY but keep RX powered,
+ * for those we need to ignore DP Sink interrupt
+ * by checking lane count that has been set
+ * on the last do_enable_output().
+ */
+
+ /* disable transmitter */
+ cntl.action = TRANSMITTER_CONTROL_DISABLE;
+ cntl.transmitter = enc10->base.transmitter;
+ cntl.hpd_sel = enc10->base.hpd_source;
+ cntl.signal = signal;
+ cntl.connector_obj_id = enc10->base.connector;
+
+ result = link_transmitter_control(enc10, &cntl);
+
+ if (result != BP_RESULT_OK) {
+ DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
+ __func__);
+ BREAK_TO_DEBUGGER();
+ return;
+ }
+
+ /* disable encoder */
+ if (dc_is_dp_signal(signal))
+ link_encoder_disable(enc10);
+}
+
+void dcn10_link_encoder_dp_set_lane_settings(
+ struct link_encoder *enc,
+ const struct link_training_settings *link_settings)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+ union dpcd_training_lane_set training_lane_set = { { 0 } };
+ int32_t lane = 0;
+ struct bp_transmitter_control cntl = { 0 };
+
+ if (!link_settings) {
+ BREAK_TO_DEBUGGER();
+ return;
+ }
+
+ cntl.action = TRANSMITTER_CONTROL_SET_VOLTAGE_AND_PREEMPASIS;
+ cntl.transmitter = enc10->base.transmitter;
+ cntl.connector_obj_id = enc10->base.connector;
+ cntl.lanes_number = link_settings->link_settings.lane_count;
+ cntl.hpd_sel = enc10->base.hpd_source;
+ cntl.pixel_clock = link_settings->link_settings.link_rate *
+ LINK_RATE_REF_FREQ_IN_KHZ;
+
+ for (lane = 0; lane < link_settings->link_settings.lane_count; lane++) {
+ /* translate lane settings */
+
+ training_lane_set.bits.VOLTAGE_SWING_SET =
+ link_settings->lane_settings[lane].VOLTAGE_SWING;
+ training_lane_set.bits.PRE_EMPHASIS_SET =
+ link_settings->lane_settings[lane].PRE_EMPHASIS;
+
+ /* post cursor 2 setting only applies to HBR2 link rate */
+ if (link_settings->link_settings.link_rate == LINK_RATE_HIGH2) {
+ /* this is passed to VBIOS
+ * to program post cursor 2 level
+ */
+ training_lane_set.bits.POST_CURSOR2_SET =
+ link_settings->lane_settings[lane].POST_CURSOR2;
+ }
+
+ cntl.lane_select = lane;
+ cntl.lane_settings = training_lane_set.raw;
+
+ /* call VBIOS table to set voltage swing and pre-emphasis */
+ link_transmitter_control(enc10, &cntl);
+ }
+}
+
+/* set DP PHY test and training patterns */
+void dcn10_link_encoder_dp_set_phy_pattern(
+ struct link_encoder *enc,
+ const struct encoder_set_dp_phy_pattern_param *param)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+
+ switch (param->dp_phy_pattern) {
+ case DP_TEST_PATTERN_TRAINING_PATTERN1:
+ dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 0);
+ break;
+ case DP_TEST_PATTERN_TRAINING_PATTERN2:
+ dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 1);
+ break;
+ case DP_TEST_PATTERN_TRAINING_PATTERN3:
+ dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 2);
+ break;
+ case DP_TEST_PATTERN_TRAINING_PATTERN4:
+ dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 3);
+ break;
+ case DP_TEST_PATTERN_D102:
+ set_dp_phy_pattern_d102(enc10);
+ break;
+ case DP_TEST_PATTERN_SYMBOL_ERROR:
+ set_dp_phy_pattern_symbol_error(enc10);
+ break;
+ case DP_TEST_PATTERN_PRBS7:
+ set_dp_phy_pattern_prbs7(enc10);
+ break;
+ case DP_TEST_PATTERN_80BIT_CUSTOM:
+ set_dp_phy_pattern_80bit_custom(
+ enc10, param->custom_pattern);
+ break;
+ case DP_TEST_PATTERN_CP2520_1:
+ set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 1);
+ break;
+ case DP_TEST_PATTERN_CP2520_2:
+ set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 2);
+ break;
+ case DP_TEST_PATTERN_CP2520_3:
+ set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 3);
+ break;
+ case DP_TEST_PATTERN_VIDEO_MODE: {
+ set_dp_phy_pattern_passthrough_mode(
+ enc10, param->dp_panel_mode);
+ break;
+ }
+
+ default:
+ /* invalid phy pattern */
+ ASSERT_CRITICAL(false);
+ break;
+ }
+}
+
+static void fill_stream_allocation_row_info(
+ const struct link_mst_stream_allocation *stream_allocation,
+ uint32_t *src,
+ uint32_t *slots)
+{
+ const struct stream_encoder *stream_enc = stream_allocation->stream_enc;
+
+ if (stream_enc) {
+ *src = stream_enc->id;
+ *slots = stream_allocation->slot_count;
+ } else {
+ *src = 0;
+ *slots = 0;
+ }
+}
+
+/* programs DP MST VC payload allocation */
+void dcn10_link_encoder_update_mst_stream_allocation_table(
+ struct link_encoder *enc,
+ const struct link_mst_stream_allocation_table *table)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+ uint32_t value0 = 0;
+ uint32_t value1 = 0;
+ uint32_t value2 = 0;
+ uint32_t slots = 0;
+ uint32_t src = 0;
+ uint32_t retries = 0;
+
+ /* For CZ, there are only 3 pipes. So Virtual channel is up 3.*/
+
+ /* --- Set MSE Stream Attribute -
+ * Setup VC Payload Table on Tx Side,
+ * Issue allocation change trigger
+ * to commit payload on both tx and rx side
+ */
+
+ /* we should clean-up table each time */
+
+ if (table->stream_count >= 1) {
+ fill_stream_allocation_row_info(
+ &table->stream_allocations[0],
+ &src,
+ &slots);
+ } else {
+ src = 0;
+ slots = 0;
+ }
+
+ REG_UPDATE_2(DP_MSE_SAT0,
+ DP_MSE_SAT_SRC0, src,
+ DP_MSE_SAT_SLOT_COUNT0, slots);
+
+ if (table->stream_count >= 2) {
+ fill_stream_allocation_row_info(
+ &table->stream_allocations[1],
+ &src,
+ &slots);
+ } else {
+ src = 0;
+ slots = 0;
+ }
+
+ REG_UPDATE_2(DP_MSE_SAT0,
+ DP_MSE_SAT_SRC1, src,
+ DP_MSE_SAT_SLOT_COUNT1, slots);
+
+ if (table->stream_count >= 3) {
+ fill_stream_allocation_row_info(
+ &table->stream_allocations[2],
+ &src,
+ &slots);
+ } else {
+ src = 0;
+ slots = 0;
+ }
+
+ REG_UPDATE_2(DP_MSE_SAT1,
+ DP_MSE_SAT_SRC2, src,
+ DP_MSE_SAT_SLOT_COUNT2, slots);
+
+ if (table->stream_count >= 4) {
+ fill_stream_allocation_row_info(
+ &table->stream_allocations[3],
+ &src,
+ &slots);
+ } else {
+ src = 0;
+ slots = 0;
+ }
+
+ REG_UPDATE_2(DP_MSE_SAT1,
+ DP_MSE_SAT_SRC3, src,
+ DP_MSE_SAT_SLOT_COUNT3, slots);
+
+ /* --- wait for transaction finish */
+
+ /* send allocation change trigger (ACT) ?
+ * this step first sends the ACT,
+ * then double buffers the SAT into the hardware
+ * making the new allocation active on the DP MST mode link
+ */
+
+ /* DP_MSE_SAT_UPDATE:
+ * 0 - No Action
+ * 1 - Update SAT with trigger
+ * 2 - Update SAT without trigger
+ */
+ REG_UPDATE(DP_MSE_SAT_UPDATE,
+ DP_MSE_SAT_UPDATE, 1);
+
+ /* wait for update to complete
+ * (i.e. DP_MSE_SAT_UPDATE field is reset to 0)
+ * then wait for the transmission
+ * of at least 16 MTP headers on immediate local link.
+ * i.e. DP_MSE_16_MTP_KEEPOUT field (read only) is reset to 0
+ * a value of 1 indicates that DP MST mode
+ * is in the 16 MTP keepout region after a VC has been added.
+ * MST stream bandwidth (VC rate) can be configured
+ * after this bit is cleared
+ */
+ do {
+ udelay(10);
+
+ value0 = REG_READ(DP_MSE_SAT_UPDATE);
+
+ REG_GET(DP_MSE_SAT_UPDATE,
+ DP_MSE_SAT_UPDATE, &value1);
+
+ REG_GET(DP_MSE_SAT_UPDATE,
+ DP_MSE_16_MTP_KEEPOUT, &value2);
+
+ /* bit field DP_MSE_SAT_UPDATE is set to 1 already */
+ if (!value1 && !value2)
+ break;
+ ++retries;
+ } while (retries < DP_MST_UPDATE_MAX_RETRY);
+}
+
+void dcn10_link_encoder_connect_dig_be_to_fe(
+ struct link_encoder *enc,
+ enum engine_id engine,
+ bool connect)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+ uint32_t field;
+
+ if (engine != ENGINE_ID_UNKNOWN) {
+
+ REG_GET(DIG_BE_CNTL, DIG_FE_SOURCE_SELECT, &field);
+
+ if (connect)
+ field |= get_frontend_source(engine);
+ else
+ field &= ~get_frontend_source(engine);
+
+ REG_UPDATE(DIG_BE_CNTL, DIG_FE_SOURCE_SELECT, field);
+ }
+}
+
+
+#define HPD_REG(reg)\
+ (enc10->hpd_regs->reg)
+
+#define HPD_REG_READ(reg_name) \
+ dm_read_reg(CTX, HPD_REG(reg_name))
+
+#define HPD_REG_UPDATE_N(reg_name, n, ...) \
+ generic_reg_update_ex(CTX, \
+ HPD_REG(reg_name), \
+ HPD_REG_READ(reg_name), \
+ n, __VA_ARGS__)
+
+#define HPD_REG_UPDATE(reg_name, field, val) \
+ HPD_REG_UPDATE_N(reg_name, 1, \
+ FN(reg_name, field), val)
+
+void dcn10_link_encoder_enable_hpd(struct link_encoder *enc)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+
+ HPD_REG_UPDATE(DC_HPD_CONTROL,
+ DC_HPD_EN, 1);
+}
+
+void dcn10_link_encoder_disable_hpd(struct link_encoder *enc)
+{
+ struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
+
+ HPD_REG_UPDATE(DC_HPD_CONTROL,
+ DC_HPD_EN, 0);
+}
+
+
+#define AUX_REG(reg)\
+ (enc10->aux_regs->reg)
+
+#define AUX_REG_READ(reg_name) \
+ dm_read_reg(CTX, AUX_REG(reg_name))
+
+#define AUX_REG_UPDATE_N(reg_name, n, ...) \
+ generic_reg_update_ex(CTX, \
+ AUX_REG(reg_name), \
+ AUX_REG_READ(reg_name), \
+ n, __VA_ARGS__)
+
+#define AUX_REG_UPDATE(reg_name, field, val) \
+ AUX_REG_UPDATE_N(reg_name, 1, \
+ FN(reg_name, field), val)
+
+#define AUX_REG_UPDATE_2(reg, f1, v1, f2, v2) \
+ AUX_REG_UPDATE_N(reg, 2,\
+ FN(reg, f1), v1,\
+ FN(reg, f2), v2)
+
+static void aux_initialize(
+ struct dcn10_link_encoder *enc10)
+{
+ enum hpd_source_id hpd_source = enc10->base.hpd_source;
+
+ AUX_REG_UPDATE_2(AUX_CONTROL,
+ AUX_HPD_SEL, hpd_source,
+ AUX_LS_READ_EN, 0);
+
+ /* 1/4 window (the maximum allowed) */
+ AUX_REG_UPDATE(AUX_DPHY_RX_CONTROL0,
+ AUX_RX_RECEIVE_WINDOW, 1);
+}
projects / platform / kernel / linux-rpi.git / commitdiff