[PATCH v2 03/24] drm/amd/display: Fix MST Multi-Stream Not Lighting Up on dcn35

[Roman.Li]

From: Fangzhi Zuo <jerry....@amd.com>

dcn35 misses .enable_symclk_se hook that makes MST DSC
not functional when having multiple FE clk to be enabled.

Reviewed-by: Rodrigo Siqueira <rodrigo.sique...@amd.com>
Acked-by: Roman Li <roman...@amd.com>
Signed-off-by: Fangzhi Zuo <jerry....@amd.com>
---
 drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c 
b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
index 4d6493e0ccfc..608221b0dd5d 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
@@ -2746,6 +2746,8 @@ void dcn20_enable_stream(struct pipe_ctx *pipe_ctx)
        struct dce_hwseq *hws = dc->hwseq;
        unsigned int k1_div = PIXEL_RATE_DIV_NA;
        unsigned int k2_div = PIXEL_RATE_DIV_NA;
+       struct link_encoder *link_enc = 
link_enc_cfg_get_link_enc(pipe_ctx->stream->link);
+       struct stream_encoder *stream_enc = pipe_ctx->stream_res.stream_enc;
 
        if (dc->link_srv->dp_is_128b_132b_signal(pipe_ctx)) {
                if (dc->hwseq->funcs.setup_hpo_hw_control)
@@ -2765,6 +2767,10 @@ void dcn20_enable_stream(struct pipe_ctx *pipe_ctx)
                dto_params.timing = &pipe_ctx->stream->timing;
                dto_params.ref_dtbclk_khz = 
dc->clk_mgr->funcs->get_dtb_ref_clk_frequency(dc->clk_mgr);
                dccg->funcs->set_dtbclk_dto(dccg, &dto_params);
+       } else {
+               if (dccg->funcs->enable_symclk_se)
+                       dccg->funcs->enable_symclk_se(dccg, 
stream_enc->stream_enc_inst,
+                                                     link_enc->transmitter - 
TRANSMITTER_UNIPHY_A);
        }
        if (hws->funcs.calculate_dccg_k1_k2_values && 
dc->res_pool->dccg->funcs->set_pixel_rate_div) {
                hws->funcs.calculate_dccg_k1_k2_values(pipe_ctx, &k1_div, 
&k2_div);
-- 
2.34.1