drm/amd/display: Add support for programming stereo sync

Signed-off-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dce/dce_opp.h

@@ -174,7 +174,8 @@ enum dce110_opp_reg_type {
 	OPP_SF(DCFE_MEM_PWR_CTRL, DCP_LUT_MEM_PWR_DIS, mask_sh),\
 	OPP_SF(DCFE_MEM_PWR_STATUS, DCP_REGAMMA_MEM_PWR_STATE, mask_sh),\
 	OPP_SF(FMT_CONTROL, FMT_SPATIAL_DITHER_FRAME_COUNTER_MAX, mask_sh),\
-	OPP_SF(FMT_CONTROL, FMT_SPATIAL_DITHER_FRAME_COUNTER_BIT_SWAP, mask_sh)
+	OPP_SF(FMT_CONTROL, FMT_SPATIAL_DITHER_FRAME_COUNTER_BIT_SWAP, mask_sh),\
+	OPP_SF(FMT_CONTROL, FMT_STEREOSYNC_OVERRIDE, mask_sh)
 
 #define OPP_COMMON_MASK_SH_LIST_DCE_100(mask_sh)\
 	OPP_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(mask_sh),\
@@ -182,7 +183,8 @@ enum dce110_opp_reg_type {
 	OPP_SF(DCFE_MEM_PWR_CTRL, DCP_LUT_MEM_PWR_DIS, mask_sh),\
 	OPP_SF(DCFE_MEM_PWR_STATUS, DCP_REGAMMA_MEM_PWR_STATE, mask_sh),\
 	OPP_SF(FMT_CONTROL, FMT_SPATIAL_DITHER_FRAME_COUNTER_MAX, mask_sh),\
-	OPP_SF(FMT_CONTROL, FMT_SPATIAL_DITHER_FRAME_COUNTER_BIT_SWAP, mask_sh)
+	OPP_SF(FMT_CONTROL, FMT_SPATIAL_DITHER_FRAME_COUNTER_BIT_SWAP, mask_sh),\
+	OPP_SF(FMT_CONTROL, FMT_STEREOSYNC_OVERRIDE, mask_sh)
 
 #define OPP_COMMON_MASK_SH_LIST_DCE_112(mask_sh)\
 	OPP_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(mask_sh),\
@@ -195,7 +197,8 @@ enum dce110_opp_reg_type {
 	OPP_SF(FMT_CONTROL, FMT_420_PIXEL_PHASE_LOCKED, mask_sh),\
 	OPP_SF(FMT_CONTROL, FMT_CBCR_BIT_REDUCTION_BYPASS, mask_sh),\
 	OPP_SF(FMT_CONTROL, FMT_SPATIAL_DITHER_FRAME_COUNTER_MAX, mask_sh),\
-	OPP_SF(FMT_CONTROL, FMT_SPATIAL_DITHER_FRAME_COUNTER_BIT_SWAP, mask_sh)
+	OPP_SF(FMT_CONTROL, FMT_SPATIAL_DITHER_FRAME_COUNTER_BIT_SWAP, mask_sh),\
+	OPP_SF(FMT_CONTROL, FMT_STEREOSYNC_OVERRIDE, mask_sh)
 
 #define OPP_COMMON_MASK_SH_LIST_DCE_80(mask_sh)\
 	OPP_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(mask_sh),\
@@ -244,6 +247,7 @@ enum dce110_opp_reg_type {
 	OPP_SF(FMT0_FMT_BIT_DEPTH_CONTROL, FMT_TEMPORAL_DITHER_EN, mask_sh),\
 	OPP_SF(FMT0_FMT_CONTROL, FMT_SPATIAL_DITHER_FRAME_COUNTER_MAX, mask_sh),\
 	OPP_SF(FMT0_FMT_CONTROL, FMT_SPATIAL_DITHER_FRAME_COUNTER_BIT_SWAP, mask_sh),\
+	OPP_SF(FMT0_FMT_CONTROL, FMT_STEREOSYNC_OVERRIDE, mask_sh),\
 	OPP_SF(FMT0_FMT_DITHER_RAND_R_SEED, FMT_RAND_R_SEED, mask_sh),\
 	OPP_SF(FMT0_FMT_DITHER_RAND_G_SEED, FMT_RAND_G_SEED, mask_sh),\
 	OPP_SF(FMT0_FMT_DITHER_RAND_B_SEED, FMT_RAND_B_SEED, mask_sh),\
@@ -308,6 +312,7 @@ enum dce110_opp_reg_type {
 	type FMT_RGB_RANDOM_ENABLE; \
 	type FMT_SPATIAL_DITHER_FRAME_COUNTER_MAX; \
 	type FMT_SPATIAL_DITHER_FRAME_COUNTER_BIT_SWAP; \
+	type FMT_STEREOSYNC_OVERRIDE; \
 	type FMT_RAND_R_SEED; \
 	type FMT_RAND_G_SEED; \
 	type FMT_RAND_B_SEED; \

drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c

@@ -1286,6 +1286,17 @@ void dce110_se_hdmi_audio_disable(
 	dce110_se_enable_audio_clock(enc, false);
 }
 
+
+static void setup_stereo_sync(
+	struct stream_encoder *enc,
+	int tg_inst, bool enable)
+{
+	struct dce110_stream_encoder *enc110 = DCE110STRENC_FROM_STRENC(enc);
+	REG_UPDATE(DIG_FE_CNTL, DIG_STEREOSYNC_SELECT, tg_inst);
+	REG_UPDATE(DIG_FE_CNTL, DIG_STEREOSYNC_GATE_EN, !enable);
+}
+
+
 static const struct stream_encoder_funcs dce110_str_enc_funcs = {
 	.dp_set_stream_attribute =
 		dce110_stream_encoder_dp_set_stream_attribute,
@@ -1316,6 +1327,7 @@ static const struct stream_encoder_funcs dce110_str_enc_funcs = {
 
 	.hdmi_audio_setup = dce110_se_hdmi_audio_setup,
 	.hdmi_audio_disable = dce110_se_hdmi_audio_disable,
+	.setup_stereo_sync  = setup_stereo_sync,
 };
 
 bool dce110_stream_encoder_construct(

drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.h

@@ -151,6 +151,8 @@
 	SE_SF(DP_VID_N, DP_VID_N, mask_sh),\
 	SE_SF(DP_VID_M, DP_VID_M, mask_sh),\
 	SE_SF(DIG_FE_CNTL, DIG_START, mask_sh),\
+	SE_SF(DIG_FE_CNTL, DIG_STEREOSYNC_SELECT, mask_sh),\
+	SE_SF(DIG_FE_CNTL, DIG_STEREOSYNC_GATE_EN, mask_sh),\
 	SE_SF(AFMT_AUDIO_SRC_CONTROL, AFMT_AUDIO_SRC_SELECT, mask_sh),\
 	SE_SF(AFMT_AUDIO_PACKET_CONTROL2, AFMT_AUDIO_CHANNEL_ENABLE, mask_sh),\
 	SE_SF(HDMI_AUDIO_PACKET_CONTROL, HDMI_AUDIO_PACKETS_PER_LINE, mask_sh),\
@@ -265,7 +267,9 @@
 	SE_SF(DIG0_AFMT_CNTL, AFMT_AUDIO_CLOCK_EN, mask_sh),\
 	SE_SF(DIG0_HDMI_CONTROL, HDMI_CLOCK_CHANNEL_RATE, mask_sh),\
 	SE_SF(DIG0_DIG_FE_CNTL, TMDS_PIXEL_ENCODING, mask_sh),\
-	SE_SF(DIG0_DIG_FE_CNTL, TMDS_COLOR_FORMAT, mask_sh)
+	SE_SF(DIG0_DIG_FE_CNTL, TMDS_COLOR_FORMAT, mask_sh),\
+	SE_SF(DIG0_DIG_FE_CNTL, DIG_STEREOSYNC_SELECT, mask_sh),\
+	SE_SF(DIG0_DIG_FE_CNTL, DIG_STEREOSYNC_GATE_EN, mask_sh)
 
 #define SE_COMMON_MASK_SH_LIST_SOC(mask_sh)\
 	SE_COMMON_MASK_SH_LIST_SOC_BASE(mask_sh)
@@ -281,7 +285,9 @@
 	SE_SF(HDMI_CONTROL, HDMI_CLOCK_CHANNEL_RATE, mask_sh),\
 	SE_SF(HDMI_CONTROL, HDMI_DATA_SCRAMBLE_EN, mask_sh),\
 	SE_SF(DIG_FE_CNTL, TMDS_PIXEL_ENCODING, mask_sh),\
-	SE_SF(DIG_FE_CNTL, TMDS_COLOR_FORMAT, mask_sh)
+	SE_SF(DIG_FE_CNTL, TMDS_COLOR_FORMAT, mask_sh),\
+	SE_SF(DIG_FE_CNTL, DIG_STEREOSYNC_SELECT, mask_sh),\
+	SE_SF(DIG_FE_CNTL, DIG_STEREOSYNC_GATE_EN, mask_sh)
 
 #define SE_COMMON_MASK_SH_LIST_DCE112(mask_sh)\
 	SE_COMMON_MASK_SH_LIST_DCE_COMMON(mask_sh),\
@@ -416,6 +422,8 @@ struct dce_stream_encoder_shift {
 	uint8_t AFMT_AUDIO_CLOCK_EN;
 	uint8_t TMDS_PIXEL_ENCODING;
 	uint8_t TMDS_COLOR_FORMAT;
+	uint8_t DIG_STEREOSYNC_SELECT;
+	uint8_t DIG_STEREOSYNC_GATE_EN;
 	uint8_t DP_DB_DISABLE;
 	uint8_t DP_MSA_MISC0;
 	uint8_t DP_MSA_HTOTAL;
@@ -543,6 +551,8 @@ struct dce_stream_encoder_mask {
 	uint32_t AFMT_AUDIO_SAMPLE_SEND;
 	uint32_t AFMT_AUDIO_CLOCK_EN;
 	uint32_t TMDS_PIXEL_ENCODING;
+	uint32_t DIG_STEREOSYNC_SELECT;
+	uint32_t DIG_STEREOSYNC_GATE_EN;
 	uint32_t TMDS_COLOR_FORMAT;
 	uint32_t DP_DB_DISABLE;
 	uint32_t DP_MSA_MISC0;

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

@@ -1056,6 +1056,13 @@ static enum dc_status apply_single_controller_ctx_to_hw(
 			stream->sink->link->link_enc,
 			pipe_ctx->stream->signal);
 
+	if (pipe_ctx->stream->signal != SIGNAL_TYPE_VIRTUAL)
+		pipe_ctx->stream_enc->funcs->setup_stereo_sync(
+		pipe_ctx->stream_enc,
+		pipe_ctx->tg->inst,
+		stream->public.timing.timing_3d_format != TIMING_3D_FORMAT_NONE);
+
+
 /*vbios crtc_source_selection and encoder_setup will override fmt_C*/
 	pipe_ctx->opp->funcs->opp_program_fmt(
 			pipe_ctx->opp,

drivers/gpu/drm/amd/display/dc/inc/hw/opp.h

@@ -316,6 +316,11 @@ struct opp_funcs {
 			struct hw_adjustment_range *range);
 
 	void (*opp_destroy)(struct output_pixel_processor **opp);
+
+	void (*opp_set_stereo_polarity)(
+			struct output_pixel_processor *opp,
+			bool enable,
+			bool rightEyePolarity);
 };
 
 #endif

drivers/gpu/drm/amd/display/dc/inc/hw/stream_encoder.h

@@ -118,6 +118,11 @@ struct stream_encoder_funcs {
 
 	void (*hdmi_audio_disable) (
 			struct stream_encoder *enc);
+
+	void (*setup_stereo_sync) (
+			struct stream_encoder *enc,
+			int tg_inst,
+			bool enable);
 };
 
 #endif /* STREAM_ENCODER_H_ */