drm/amd/display: Switch to correct DTO on HDMI

[Why]
For Pixel Rate control, when on HDMI, HDMI DTO should be selected
instead of DP DTO.

[How]
Pass HDMI parameter for HDMI stream, and select correct DTO.
Signed-off-by: Chris Park <chris.park@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c

@@ -323,6 +323,8 @@ static void dcn32_update_clocks_update_dtb_dto(struct clk_mgr_internal *clk_mgr,
 				if (pipe_ctx->stream_res.audio != NULL)
 					dto_params.req_audio_dtbclk_khz = 24000;
 			}
+			if (dc_is_hdmi_signal(pipe_ctx->stream->signal))
+				dto_params.is_hdmi = true;
 
 			dccg->funcs->set_dtbclk_dto(clk_mgr->dccg, &dto_params);
 			//dccg->funcs->set_audio_dtbclk_dto(clk_mgr->dccg, &dto_params);

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dccg.c

@@ -171,6 +171,9 @@ void dccg32_set_dtbclk_dto(
 		REG_UPDATE_2(OTG_PIXEL_RATE_CNTL[params->otg_inst],
 				DTBCLK_DTO_ENABLE[params->otg_inst], 0,
 				PIPE_DTO_SRC_SEL[params->otg_inst], 1);
+		if (params->is_hdmi)
+			REG_UPDATE(OTG_PIXEL_RATE_CNTL[params->otg_inst],
+				PIPE_DTO_SRC_SEL[params->otg_inst], 0);
 
 		REG_WRITE(DTBCLK_DTO_MODULO[params->otg_inst], 0);
 		REG_WRITE(DTBCLK_DTO_PHASE[params->otg_inst], 0);
@@ -188,6 +191,7 @@ static void dccg32_set_valid_pixel_rate(
 	dto_params.ref_dtbclk_khz = ref_dtbclk_khz;
 	dto_params.otg_inst = otg_inst;
 	dto_params.pixclk_khz = pixclk_khz;
+	dto_params.is_hdmi = true;
 
 	dccg32_set_dtbclk_dto(dccg, &dto_params);
 }