diff options
| author | Ken Chalmers <ken.chalmers@amd.com> | 2018-11-06 14:24:12 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-01-14 15:04:39 -0500 |
| commit | 380604e27bc9c26ce64a83044aa1ea76ffd28caf (patch) | |
| tree | 8e9a9e2cee34380c330bf9e497d0c208606c1a6d /drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c | |
| parent | 43995f8fb64c54b740262f72ab51d41268c0f7ff (diff) | |
drm/amd/display: Use 100 Hz precision for pipe pixel clocks
[Why]
Users would like more accurate pixel clocks, especially for fractional
"TV" frame rates like 59.94 Hz.
[How]
Store and communicate pixel clocks with 100 Hz accuracy from
dc_crtc_timing through to BIOS command table setpixelclock call.
Signed-off-by: Ken Chalmers <ken.chalmers@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c index 5c1a7c013f63..894043009abd 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c @@ -194,8 +194,8 @@ static uint32_t get_max_pixel_clock_for_all_paths(struct dc_state *context) if (pipe_ctx->top_pipe) continue; - if (pipe_ctx->stream_res.pix_clk_params.requested_pix_clk > max_pix_clk) - max_pix_clk = pipe_ctx->stream_res.pix_clk_params.requested_pix_clk; + if (pipe_ctx->stream_res.pix_clk_params.requested_pix_clk_100hz / 10 > max_pix_clk) + max_pix_clk = pipe_ctx->stream_res.pix_clk_params.requested_pix_clk_100hz / 10; /* raise clock state for HBR3/2 if required. Confirmed with HW DCE/DPCS * logic for HBR3 still needs Nominal (0.8V) on VDDC rail @@ -257,7 +257,7 @@ static int dce_set_clock( clk_mgr_dce->dentist_vco_freq_khz / 64); /* Prepare to program display clock*/ - pxl_clk_params.target_pixel_clock = requested_clk_khz; + pxl_clk_params.target_pixel_clock_100hz = requested_clk_khz * 10; pxl_clk_params.pll_id = CLOCK_SOURCE_ID_DFS; if (clk_mgr_dce->dfs_bypass_active) @@ -494,7 +494,7 @@ void dce110_fill_display_configs( stream->link->cur_link_settings.link_spread; cfg->sym_clock = stream->phy_pix_clk; /* Round v_refresh*/ - cfg->v_refresh = stream->timing.pix_clk_khz * 1000; + cfg->v_refresh = stream->timing.pix_clk_100hz * 100; cfg->v_refresh /= stream->timing.h_total; cfg->v_refresh = (cfg->v_refresh + stream->timing.v_total / 2) / stream->timing.v_total; @@ -518,7 +518,7 @@ static uint32_t dce110_get_min_vblank_time_us(const struct dc_state *context) - stream->timing.v_addressable); vertical_blank_time = vertical_blank_in_pixels - * 1000 / stream->timing.pix_clk_khz; + * 10000 / stream->timing.pix_clk_100hz; if (min_vertical_blank_time > vertical_blank_time) min_vertical_blank_time = vertical_blank_time; @@ -612,7 +612,7 @@ static void dce11_pplib_apply_display_requirements( pp_display_cfg->crtc_index = pp_display_cfg->disp_configs[0].pipe_idx; - pp_display_cfg->line_time_in_us = timing->h_total * 1000 / timing->pix_clk_khz; + pp_display_cfg->line_time_in_us = timing->h_total * 10000 / timing->pix_clk_100hz; } if (memcmp(&dc->current_state->pp_display_cfg, pp_display_cfg, sizeof(*pp_display_cfg)) != 0) |