Contributors: 20
Author Tokens Token Proportion Commits Commit Proportion
Harry Wentland 1970 87.32% 4 12.50%
Eric Bernstein 61 2.70% 3 9.38%
Nikola Cornij 52 2.30% 3 9.38%
Sung Joon Kim 52 2.30% 1 3.12%
Wesley Chalmers 23 1.02% 1 3.12%
Leo (Hanghong) Ma 13 0.58% 1 3.12%
Ahmad Othman 12 0.53% 1 3.12%
Ilya Bakoulin 12 0.53% 1 3.12%
Charlene Liu 11 0.49% 2 6.25%
Martin Leung 10 0.44% 2 6.25%
Wenjing Liu 7 0.31% 3 9.38%
Anthony Koo 5 0.22% 1 3.12%
Dingchen Zhang 5 0.22% 1 3.12%
Eric Yang 5 0.22% 1 3.12%
Naveed Ashfaq 4 0.18% 1 3.12%
Nicholas Kazlauskas 3 0.13% 1 3.12%
Takashi Iwai 3 0.13% 1 3.12%
Dmytro Laktyushkin 3 0.13% 2 6.25%
Bing Guo 3 0.13% 1 3.12%
George Shen 2 0.09% 1 3.12%
Total 2256 32 


/*
 * 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 <linux/delay.h>

#include "dc_bios_types.h"
#include "dcn20_stream_encoder.h"
#include "reg_helper.h"
#include "hw_shared.h"
#include "link.h"
#include "dpcd_defs.h"

#define DC_LOGGER \
		enc1->base.ctx->logger

#define REG(reg)\
	(enc1->regs->reg)

#undef FN
#define FN(reg_name, field_name) \
	enc1->se_shift->field_name, enc1->se_mask->field_name


#define CTX \
	enc1->base.ctx


static void enc2_update_hdmi_info_packet(
	struct dcn10_stream_encoder *enc1,
	uint32_t packet_index,
	const struct dc_info_packet *info_packet)
{
	uint32_t cont, send, line;

	if (info_packet->valid) {
		enc1_update_generic_info_packet(
			enc1,
			packet_index,
			info_packet);

		/* enable transmission of packet(s) -
		 * packet transmission begins on the next frame */
		cont = 1;
		/* send packet(s) every frame */
		send = 1;
		/* select line number to send packets on */
		line = 2;
	} else {
		cont = 0;
		send = 0;
		line = 0;
	}

	/* DP_SEC_GSP[x]_LINE_REFERENCE - keep default value REFER_TO_DP_SOF */

	/* choose which generic packet control to use */
	switch (packet_index) {
	case 0:
		REG_UPDATE_2(HDMI_GENERIC_PACKET_CONTROL0,
				HDMI_GENERIC0_CONT, cont,
				HDMI_GENERIC0_SEND, send);
		REG_UPDATE(HDMI_GENERIC_PACKET_CONTROL1,
				HDMI_GENERIC0_LINE, line);
		break;
	case 1:
		REG_UPDATE_2(HDMI_GENERIC_PACKET_CONTROL0,
				HDMI_GENERIC1_CONT, cont,
				HDMI_GENERIC1_SEND, send);
		REG_UPDATE(HDMI_GENERIC_PACKET_CONTROL1,
				HDMI_GENERIC1_LINE, line);
		break;
	case 2:
		REG_UPDATE_2(HDMI_GENERIC_PACKET_CONTROL0,
				HDMI_GENERIC2_CONT, cont,
				HDMI_GENERIC2_SEND, send);
		REG_UPDATE(HDMI_GENERIC_PACKET_CONTROL2,
				HDMI_GENERIC2_LINE, line);
		break;
	case 3:
		REG_UPDATE_2(HDMI_GENERIC_PACKET_CONTROL0,
				HDMI_GENERIC3_CONT, cont,
				HDMI_GENERIC3_SEND, send);
		REG_UPDATE(HDMI_GENERIC_PACKET_CONTROL2,
				HDMI_GENERIC3_LINE, line);
		break;
	case 4:
		REG_UPDATE_2(HDMI_GENERIC_PACKET_CONTROL0,
				HDMI_GENERIC4_CONT, cont,
				HDMI_GENERIC4_SEND, send);
		REG_UPDATE(HDMI_GENERIC_PACKET_CONTROL3,
				HDMI_GENERIC4_LINE, line);
		break;
	case 5:
		REG_UPDATE_2(HDMI_GENERIC_PACKET_CONTROL0,
				HDMI_GENERIC5_CONT, cont,
				HDMI_GENERIC5_SEND, send);
		REG_UPDATE(HDMI_GENERIC_PACKET_CONTROL3,
				HDMI_GENERIC5_LINE, line);
		break;
	case 6:
		REG_UPDATE_2(HDMI_GENERIC_PACKET_CONTROL0,
				HDMI_GENERIC6_CONT, cont,
				HDMI_GENERIC6_SEND, send);
		REG_UPDATE(HDMI_GENERIC_PACKET_CONTROL4,
				HDMI_GENERIC6_LINE, line);
		break;
	case 7:
		REG_UPDATE_2(HDMI_GENERIC_PACKET_CONTROL0,
				HDMI_GENERIC7_CONT, cont,
				HDMI_GENERIC7_SEND, send);
		REG_UPDATE(HDMI_GENERIC_PACKET_CONTROL4,
				HDMI_GENERIC7_LINE, line);
		break;
	default:
		/* invalid HW packet index */
		DC_LOG_WARNING(
			"Invalid HW packet index: %s()\n",
			__func__);
		return;
	}
}

static void enc2_stream_encoder_update_hdmi_info_packets(
	struct stream_encoder *enc,
	const struct encoder_info_frame *info_frame)
{
	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);

	/* for bring up, disable dp double  TODO */
	REG_UPDATE(HDMI_DB_CONTROL, HDMI_DB_DISABLE, 1);

	/*Always add mandatory packets first followed by optional ones*/
	enc2_update_hdmi_info_packet(enc1, 0, &info_frame->avi);
	enc2_update_hdmi_info_packet(enc1, 1, &info_frame->hfvsif);
	enc2_update_hdmi_info_packet(enc1, 2, &info_frame->gamut);
	enc2_update_hdmi_info_packet(enc1, 3, &info_frame->vendor);
	enc2_update_hdmi_info_packet(enc1, 4, &info_frame->spd);
	enc2_update_hdmi_info_packet(enc1, 5, &info_frame->hdrsmd);
	enc2_update_hdmi_info_packet(enc1, 6, &info_frame->vtem);
}

static void enc2_stream_encoder_stop_hdmi_info_packets(
	struct stream_encoder *enc)
{
	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);

	/* stop generic packets 0,1 on HDMI */
	REG_SET_4(HDMI_GENERIC_PACKET_CONTROL0, 0,
		HDMI_GENERIC0_CONT, 0,
		HDMI_GENERIC0_SEND, 0,
		HDMI_GENERIC1_CONT, 0,
		HDMI_GENERIC1_SEND, 0);
	REG_SET_2(HDMI_GENERIC_PACKET_CONTROL1, 0,
		HDMI_GENERIC0_LINE, 0,
		HDMI_GENERIC1_LINE, 0);

	/* stop generic packets 2,3 on HDMI */
	REG_SET_4(HDMI_GENERIC_PACKET_CONTROL0, 0,
		HDMI_GENERIC2_CONT, 0,
		HDMI_GENERIC2_SEND, 0,
		HDMI_GENERIC3_CONT, 0,
		HDMI_GENERIC3_SEND, 0);
	REG_SET_2(HDMI_GENERIC_PACKET_CONTROL2, 0,
		HDMI_GENERIC2_LINE, 0,
		HDMI_GENERIC3_LINE, 0);

	/* stop generic packets 4,5 on HDMI */
	REG_SET_4(HDMI_GENERIC_PACKET_CONTROL0, 0,
		HDMI_GENERIC4_CONT, 0,
		HDMI_GENERIC4_SEND, 0,
		HDMI_GENERIC5_CONT, 0,
		HDMI_GENERIC5_SEND, 0);
	REG_SET_2(HDMI_GENERIC_PACKET_CONTROL3, 0,
		HDMI_GENERIC4_LINE, 0,
		HDMI_GENERIC5_LINE, 0);

	/* stop generic packets 6,7 on HDMI */
	REG_SET_4(HDMI_GENERIC_PACKET_CONTROL0, 0,
		HDMI_GENERIC6_CONT, 0,
		HDMI_GENERIC6_SEND, 0,
		HDMI_GENERIC7_CONT, 0,
		HDMI_GENERIC7_SEND, 0);
	REG_SET_2(HDMI_GENERIC_PACKET_CONTROL4, 0,
		HDMI_GENERIC6_LINE, 0,
		HDMI_GENERIC7_LINE, 0);
}


/* Update GSP7 SDP 128 byte long */
static void enc2_update_gsp7_128_info_packet(
	struct dcn10_stream_encoder *enc1,
	const struct dc_info_packet_128 *info_packet,
	bool immediate_update)
{
	uint32_t i;

	/* TODOFPGA Figure out a proper number for max_retries polling for lock
	 * use 50 for now.
	 */
	uint32_t max_retries = 50;
	const uint32_t *content = (const uint32_t *) &info_packet->sb[0];

	ASSERT(info_packet->hb1  == DC_DP_INFOFRAME_TYPE_PPS);

	/* Configure for PPS packet size (128 bytes) */
	REG_UPDATE(DP_SEC_CNTL2, DP_SEC_GSP7_PPS, 1);

	/* We need turn on clock before programming AFMT block*/
	REG_UPDATE(AFMT_CNTL, AFMT_AUDIO_CLOCK_EN, 1);

	/* Poll dig_update_lock is not locked -> asic internal signal
	 * assumes otg master lock will unlock it
	 */
	/*REG_WAIT(AFMT_VBI_PACKET_CONTROL, AFMT_GENERIC_LOCK_STATUS, 0, 10, max_retries);*/

	/* Wait for HW/SW GSP memory access conflict to go away */
	REG_WAIT(AFMT_VBI_PACKET_CONTROL, AFMT_GENERIC_CONFLICT,
			0, 10, max_retries);

	/* Clear HW/SW memory access conflict flag */
	REG_UPDATE(AFMT_VBI_PACKET_CONTROL, AFMT_GENERIC_CONFLICT_CLR, 1);

	/* write generic packet header */
	REG_UPDATE(AFMT_VBI_PACKET_CONTROL, AFMT_GENERIC_INDEX, 7);
	REG_SET_4(AFMT_GENERIC_HDR, 0,
			AFMT_GENERIC_HB0, info_packet->hb0,
			AFMT_GENERIC_HB1, info_packet->hb1,
			AFMT_GENERIC_HB2, info_packet->hb2,
			AFMT_GENERIC_HB3, info_packet->hb3);

	/* Write generic packet content 128 bytes long. Four sets are used (indexes 7
	 * through 10) to fit 128 bytes.
	 */
	for (i = 0; i < 4; i++) {
		uint32_t packet_index = 7 + i;
		REG_UPDATE(AFMT_VBI_PACKET_CONTROL, AFMT_GENERIC_INDEX, packet_index);

		REG_WRITE(AFMT_GENERIC_0, *content++);
		REG_WRITE(AFMT_GENERIC_1, *content++);
		REG_WRITE(AFMT_GENERIC_2, *content++);
		REG_WRITE(AFMT_GENERIC_3, *content++);
		REG_WRITE(AFMT_GENERIC_4, *content++);
		REG_WRITE(AFMT_GENERIC_5, *content++);
		REG_WRITE(AFMT_GENERIC_6, *content++);
		REG_WRITE(AFMT_GENERIC_7, *content++);
	}

	REG_UPDATE_2(AFMT_VBI_PACKET_CONTROL1,
			AFMT_GENERIC7_FRAME_UPDATE, !immediate_update,
			AFMT_GENERIC7_IMMEDIATE_UPDATE, immediate_update);
}

/* Set DSC-related configuration.
 *   dsc_mode: 0 disables DSC, other values enable DSC in specified format
 *   sc_bytes_per_pixel: Bytes per pixel in u3.28 format
 *   dsc_slice_width: Slice width in pixels
 */
static void enc2_dp_set_dsc_config(struct stream_encoder *enc,
					enum optc_dsc_mode dsc_mode,
					uint32_t dsc_bytes_per_pixel,
					uint32_t dsc_slice_width)
{
	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);

	REG_UPDATE_2(DP_DSC_CNTL,
			DP_DSC_MODE, dsc_mode,
			DP_DSC_SLICE_WIDTH, dsc_slice_width);

	REG_SET(DP_DSC_BYTES_PER_PIXEL, 0,
		DP_DSC_BYTES_PER_PIXEL, dsc_bytes_per_pixel);
}


static void enc2_dp_set_dsc_pps_info_packet(struct stream_encoder *enc,
					bool enable,
					uint8_t *dsc_packed_pps,
					bool immediate_update)
{
	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);

	if (enable) {
		struct dc_info_packet_128 pps_sdp;

		ASSERT(dsc_packed_pps);

		/* Load PPS into infoframe (SDP) registers */
		pps_sdp.valid = true;
		pps_sdp.hb0 = 0;
		pps_sdp.hb1 = DC_DP_INFOFRAME_TYPE_PPS;
		pps_sdp.hb2 = 127;
		pps_sdp.hb3 = 0;
		memcpy(&pps_sdp.sb[0], dsc_packed_pps, sizeof(pps_sdp.sb));
		enc2_update_gsp7_128_info_packet(enc1, &pps_sdp, immediate_update);

		/* Enable Generic Stream Packet 7 (GSP) transmission */
		//REG_UPDATE(DP_SEC_CNTL,
		//	DP_SEC_GSP7_ENABLE, 1);

		/* SW should make sure VBID[6] update line number is bigger
		 * than PPS transmit line number
		 */
		REG_UPDATE(DP_SEC_CNTL6,
				DP_SEC_GSP7_LINE_NUM, 2);
		REG_UPDATE_2(DP_MSA_VBID_MISC,
				DP_VBID6_LINE_REFERENCE, 0,
				DP_VBID6_LINE_NUM, 3);

		/* Send PPS data at the line number specified above.
		 * DP spec requires PPS to be sent only when it changes, however since
		 * decoder has to be able to handle its change on every frame, we're
		 * sending it always (i.e. on every frame) to reduce the chance it'd be
		 * missed by decoder. If it turns out required to send PPS only when it
		 * changes, we can use DP_SEC_GSP7_SEND register.
		 */
		REG_UPDATE_2(DP_SEC_CNTL,
			DP_SEC_GSP7_ENABLE, 1,
			DP_SEC_STREAM_ENABLE, 1);
	} else {
		/* Disable Generic Stream Packet 7 (GSP) transmission */
		REG_UPDATE(DP_SEC_CNTL, DP_SEC_GSP7_ENABLE, 0);
		REG_UPDATE(DP_SEC_CNTL2, DP_SEC_GSP7_PPS, 0);
	}
}


/* this function read dsc related register fields to be logged later in dcn10_log_hw_state
 * into a dcn_dsc_state struct.
 */
static void enc2_read_state(struct stream_encoder *enc, struct enc_state *s)
{
	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);

	//if dsc is enabled, continue to read
	REG_GET(DP_DSC_CNTL, DP_DSC_MODE, &s->dsc_mode);
	if (s->dsc_mode) {
		REG_GET(DP_DSC_CNTL, DP_DSC_SLICE_WIDTH, &s->dsc_slice_width);
		REG_GET(DP_SEC_CNTL6, DP_SEC_GSP7_LINE_NUM, &s->sec_gsp_pps_line_num);

		REG_GET(DP_MSA_VBID_MISC, DP_VBID6_LINE_REFERENCE, &s->vbid6_line_reference);
		REG_GET(DP_MSA_VBID_MISC, DP_VBID6_LINE_NUM, &s->vbid6_line_num);

		REG_GET(DP_SEC_CNTL, DP_SEC_GSP7_ENABLE, &s->sec_gsp_pps_enable);
		REG_GET(DP_SEC_CNTL, DP_SEC_STREAM_ENABLE, &s->sec_stream_enable);
	}
}

/* Set Dynamic Metadata-configuration.
 *   enable_dme:         TRUE: enables Dynamic Metadata Enfine, FALSE: disables DME
 *   hubp_requestor_id:  HUBP physical instance that is the source of dynamic metadata
 *                       only needs to be set when enable_dme is TRUE
 *   dmdata_mode:        dynamic metadata packet type: DP, HDMI, or Dolby Vision
 *
 *   Ensure the OTG master update lock is set when changing DME configuration.
 */
void enc2_set_dynamic_metadata(struct stream_encoder *enc,
		bool enable_dme,
		uint32_t hubp_requestor_id,
		enum dynamic_metadata_mode dmdata_mode)
{
	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);

	if (enable_dme) {
		REG_UPDATE_2(DME_CONTROL,
				METADATA_HUBP_REQUESTOR_ID, hubp_requestor_id,
				METADATA_STREAM_TYPE, (dmdata_mode == dmdata_dolby_vision) ? 1 : 0);

		/* Use default line reference DP_SOF for bringup.
		 * Should use OTG_SOF for DRR cases
		 */
		if (dmdata_mode == dmdata_dp)
			REG_UPDATE_3(DP_SEC_METADATA_TRANSMISSION,
					DP_SEC_METADATA_PACKET_ENABLE, 1,
					DP_SEC_METADATA_PACKET_LINE_REFERENCE, 0,
					DP_SEC_METADATA_PACKET_LINE, 20);
		else {
			REG_UPDATE_3(HDMI_METADATA_PACKET_CONTROL,
					HDMI_METADATA_PACKET_ENABLE, 1,
					HDMI_METADATA_PACKET_LINE_REFERENCE, 0,
					HDMI_METADATA_PACKET_LINE, 2);

			if (dmdata_mode == dmdata_dolby_vision)
				REG_UPDATE(DIG_FE_CNTL,
						DOLBY_VISION_EN, 1);
		}

		REG_UPDATE(DME_CONTROL,
				METADATA_ENGINE_EN, 1);
	} else {
		REG_UPDATE(DME_CONTROL,
				METADATA_ENGINE_EN, 0);

		if (dmdata_mode == dmdata_dp)
			REG_UPDATE(DP_SEC_METADATA_TRANSMISSION,
					DP_SEC_METADATA_PACKET_ENABLE, 0);
		else {
			REG_UPDATE(HDMI_METADATA_PACKET_CONTROL,
					HDMI_METADATA_PACKET_ENABLE, 0);
			REG_UPDATE(DIG_FE_CNTL,
					DOLBY_VISION_EN, 0);
		}
	}
}

static void enc2_stream_encoder_update_dp_info_packets_sdp_line_num(
		struct stream_encoder *enc,
		struct encoder_info_frame *info_frame)
{
	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);

	if (info_frame->adaptive_sync.valid == true &&
		info_frame->sdp_line_num.adaptive_sync_line_num_valid == true) {
		//00: REFER_TO_DP_SOF, 01: REFER_TO_OTG_SOF
		REG_UPDATE(DP_SEC_CNTL1, DP_SEC_GSP5_LINE_REFERENCE, 1);

		REG_UPDATE(DP_SEC_CNTL5, DP_SEC_GSP5_LINE_NUM,
					info_frame->sdp_line_num.adaptive_sync_line_num);
	}
}

static void enc2_stream_encoder_update_dp_info_packets(
	struct stream_encoder *enc,
	const struct encoder_info_frame *info_frame)
{
	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);
	uint32_t dmdata_packet_enabled = 0;

	enc1_stream_encoder_update_dp_info_packets(enc, info_frame);

	/* check if dynamic metadata packet transmission is enabled */
	REG_GET(DP_SEC_METADATA_TRANSMISSION,
			DP_SEC_METADATA_PACKET_ENABLE, &dmdata_packet_enabled);

	if (dmdata_packet_enabled)
		REG_UPDATE(DP_SEC_CNTL, DP_SEC_STREAM_ENABLE, 1);
}

static bool is_two_pixels_per_containter(const struct dc_crtc_timing *timing)
{
	bool two_pix = timing->pixel_encoding == PIXEL_ENCODING_YCBCR420;

	two_pix = two_pix || (timing->flags.DSC && timing->pixel_encoding == PIXEL_ENCODING_YCBCR422
			&& !timing->dsc_cfg.ycbcr422_simple);
	return two_pix;
}

void enc2_stream_encoder_dp_unblank(
		struct dc_link *link,
		struct stream_encoder *enc,
		const struct encoder_unblank_param *param)
{
	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);

	if (param->link_settings.link_rate != LINK_RATE_UNKNOWN) {
		uint32_t n_vid = 0x8000;
		uint32_t m_vid;
		uint32_t n_multiply = 0;
		uint64_t m_vid_l = n_vid;

		/* YCbCr 4:2:0 : Computed VID_M will be 2X the input rate */
		if (is_two_pixels_per_containter(&param->timing) || param->opp_cnt > 1) {
			/*this logic should be the same in get_pixel_clock_parameters() */
			n_multiply = 1;
		}
		/* M / N = Fstream / Flink
		 * m_vid / n_vid = pixel rate / link rate
		 */

		m_vid_l *= param->timing.pix_clk_100hz / 10;
		m_vid_l = div_u64(m_vid_l,
			param->link_settings.link_rate
				* LINK_RATE_REF_FREQ_IN_KHZ);

		m_vid = (uint32_t) m_vid_l;

		/* enable auto measurement */

		REG_UPDATE(DP_VID_TIMING, DP_VID_M_N_GEN_EN, 0);

		/* auto measurement need 1 full 0x8000 symbol cycle to kick in,
		 * therefore program initial value for Mvid and Nvid
		 */

		REG_UPDATE(DP_VID_N, DP_VID_N, n_vid);

		REG_UPDATE(DP_VID_M, DP_VID_M, m_vid);

		REG_UPDATE_2(DP_VID_TIMING,
				DP_VID_M_N_GEN_EN, 1,
				DP_VID_N_MUL, n_multiply);
	}

	/* make sure stream is disabled before resetting steer fifo */
	REG_UPDATE(DP_VID_STREAM_CNTL, DP_VID_STREAM_ENABLE, false);
	REG_WAIT(DP_VID_STREAM_CNTL, DP_VID_STREAM_STATUS, 0, 10, 5000);

	/* set DIG_START to 0x1 to reset FIFO */
	REG_UPDATE(DIG_FE_CNTL, DIG_START, 1);
	udelay(1);

	/* write 0 to take the FIFO out of reset */

	REG_UPDATE(DIG_FE_CNTL, DIG_START, 0);

	/* switch DP encoder to CRTC data, but reset it the fifo first. It may happen
	 * that it overflows during mode transition, and sometimes doesn't recover.
	 */
	REG_UPDATE(DP_STEER_FIFO, DP_STEER_FIFO_RESET, 1);
	udelay(10);

	REG_UPDATE(DP_STEER_FIFO, DP_STEER_FIFO_RESET, 0);

	/* wait 100us for DIG/DP logic to prime
	 * (i.e. a few video lines)
	 */
	udelay(100);

	/* the hardware would start sending video at the start of the next DP
	 * frame (i.e. rising edge of the vblank).
	 * NOTE: We used to program DP_VID_STREAM_DIS_DEFER = 2 here, but this
	 * register has no effect on enable transition! HW always guarantees
	 * VID_STREAM enable at start of next frame, and this is not
	 * programmable
	 */

	REG_UPDATE(DP_VID_STREAM_CNTL, DP_VID_STREAM_ENABLE, true);

	link_dp_source_sequence_trace(link, DPCD_SOURCE_SEQ_AFTER_ENABLE_DP_VID_STREAM);
}

static void enc2_dp_set_odm_combine(
	struct stream_encoder *enc,
	bool odm_combine)
{
	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);

	REG_UPDATE(DP_PIXEL_FORMAT, DP_PIXEL_COMBINE, odm_combine);
}

void enc2_stream_encoder_dp_set_stream_attribute(
	struct stream_encoder *enc,
	struct dc_crtc_timing *crtc_timing,
	enum dc_color_space output_color_space,
	bool use_vsc_sdp_for_colorimetry,
	uint32_t enable_sdp_splitting)
{
	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);

	enc1_stream_encoder_dp_set_stream_attribute(enc,
			crtc_timing,
			output_color_space,
			use_vsc_sdp_for_colorimetry,
			enable_sdp_splitting);

	REG_UPDATE(DP_SEC_FRAMING4,
		DP_SST_SDP_SPLITTING, enable_sdp_splitting);
}

uint32_t enc2_get_fifo_cal_average_level(
		struct stream_encoder *enc)
{
	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);
	uint32_t fifo_level;

	REG_GET(DIG_FIFO_STATUS,
			DIG_FIFO_CAL_AVERAGE_LEVEL, &fifo_level);
	return fifo_level;
}

static const struct stream_encoder_funcs dcn20_str_enc_funcs = {
	.dp_set_odm_combine =
		enc2_dp_set_odm_combine,
	.dp_set_stream_attribute =
		enc2_stream_encoder_dp_set_stream_attribute,
	.hdmi_set_stream_attribute =
		enc1_stream_encoder_hdmi_set_stream_attribute,
	.dvi_set_stream_attribute =
		enc1_stream_encoder_dvi_set_stream_attribute,
	.set_throttled_vcp_size =
		enc1_stream_encoder_set_throttled_vcp_size,
	.update_hdmi_info_packets =
		enc2_stream_encoder_update_hdmi_info_packets,
	.stop_hdmi_info_packets =
		enc2_stream_encoder_stop_hdmi_info_packets,
	.update_dp_info_packets_sdp_line_num =
		enc2_stream_encoder_update_dp_info_packets_sdp_line_num,
	.update_dp_info_packets =
		enc2_stream_encoder_update_dp_info_packets,
	.send_immediate_sdp_message =
		enc1_stream_encoder_send_immediate_sdp_message,
	.stop_dp_info_packets =
		enc1_stream_encoder_stop_dp_info_packets,
	.dp_blank =
		enc1_stream_encoder_dp_blank,
	.dp_unblank =
		enc2_stream_encoder_dp_unblank,
	.audio_mute_control = enc1_se_audio_mute_control,

	.dp_audio_setup = enc1_se_dp_audio_setup,
	.dp_audio_enable = enc1_se_dp_audio_enable,
	.dp_audio_disable = enc1_se_dp_audio_disable,

	.hdmi_audio_setup = enc1_se_hdmi_audio_setup,
	.hdmi_audio_disable = enc1_se_hdmi_audio_disable,
	.setup_stereo_sync  = enc1_setup_stereo_sync,
	.set_avmute = enc1_stream_encoder_set_avmute,
	.dig_connect_to_otg  = enc1_dig_connect_to_otg,
	.dig_source_otg = enc1_dig_source_otg,

	.dp_get_pixel_format =
		enc1_stream_encoder_dp_get_pixel_format,

	.enc_read_state = enc2_read_state,
	.dp_set_dsc_config = enc2_dp_set_dsc_config,
	.dp_set_dsc_pps_info_packet = enc2_dp_set_dsc_pps_info_packet,
	.set_dynamic_metadata = enc2_set_dynamic_metadata,
	.hdmi_reset_stream_attribute = enc1_reset_hdmi_stream_attribute,
	.get_fifo_cal_average_level = enc2_get_fifo_cal_average_level,
};

void dcn20_stream_encoder_construct(
	struct dcn10_stream_encoder *enc1,
	struct dc_context *ctx,
	struct dc_bios *bp,
	enum engine_id eng_id,
	const struct dcn10_stream_enc_registers *regs,
	const struct dcn10_stream_encoder_shift *se_shift,
	const struct dcn10_stream_encoder_mask *se_mask)
{
	enc1->base.funcs = &dcn20_str_enc_funcs;
	enc1->base.ctx = ctx;
	enc1->base.id = eng_id;
	enc1->base.bp = bp;
	enc1->regs = regs;
	enc1->se_shift = se_shift;
	enc1->se_mask = se_mask;
	enc1->base.stream_enc_inst = eng_id - ENGINE_ID_DIGA;
}