diff options
| author | Fangzhi Zuo <Jerry.Zuo@amd.com> | 2021-08-03 18:46:00 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-09-01 16:55:10 -0400 |
| commit | f01ee019586220c86f238263a4fbde6e72085e11 (patch) | |
| tree | 7cc06dedf7dbae7cec4f779cfd9a393d1eef2f9f /drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | |
| parent | 5a2730fc1ff659977e4a8eda92d55769551041ac (diff) | |
| download | linux-f01ee019586220c86f238263a4fbde6e72085e11.tar.bz2 | |
drm/amd/display: Add DP 2.0 SST DC Support
1. Retrieve 128/132b link cap.
2. 128/132b link training and payload allocation.
3. UHBR10 link rate support.
[squash in warning fixes - Alex]
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c index e3e01b17c164..0159700c148a 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c @@ -63,6 +63,7 @@ #include "dcn20_dccg.h" #include "dcn20_vmid.h" #include "dc_link_ddc.h" +#include "dc_link_dp.h" #include "dce/dce_panel_cntl.h" #include "navi10_ip_offset.h" @@ -1604,6 +1605,7 @@ static void get_pixel_clock_parameters( pixel_clk_params->signal_type = pipe_ctx->stream->signal; pixel_clk_params->controller_id = pipe_ctx->stream_res.tg->inst + 1; /* TODO: un-hardcode*/ + /* TODO - DP2.0 HW: calculate requested_sym_clk for UHBR rates */ pixel_clk_params->requested_sym_clk = LINK_RATE_LOW * LINK_RATE_REF_FREQ_IN_KHZ; pixel_clk_params->flags.ENABLE_SS = 0; @@ -3044,6 +3046,8 @@ static bool is_dtbclk_required(struct dc *dc, struct dc_state *context) for (i = 0; i < dc->res_pool->pipe_count; i++) { if (!context->res_ctx.pipe_ctx[i].stream) continue; + if (is_dp_128b_132b_signal(&context->res_ctx.pipe_ctx[i])) + return true; } return false; } |