From: Dmytro Laktyushkin <Dmytro.Laktyushkin@xxxxxxx> This allows us to avoid any vbios bugs when initializing clocks Change-Id: Id29c32528b3d98c625f8921c2ef50da7d3de454c Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin at amd.com> Reviewed-by: Charlene Liu <Charlene.Liu at amd.com> Acked-by: Leo Li <sunpeng.li at amd.com> --- drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c | 4 +++- drivers/gpu/drm/amd/display/dc/dce/dce_clocks.h | 1 + 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c index 51ceb99..d52dead 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c @@ -196,7 +196,7 @@ static int dce12_get_dp_ref_freq_khz(struct dccg *clk) { struct dce_dccg *clk_dce = TO_DCE_CLOCKS(clk); - return dccg_adjust_dp_ref_freq_for_ss(clk_dce, 600000); + return dccg_adjust_dp_ref_freq_for_ss(clk_dce, clk_dce->dprefclk_khz); } static enum dm_pp_clocks_state dce_get_required_clocks_state( @@ -876,6 +876,7 @@ struct dccg *dce120_dccg_create(struct dc_context *ctx) dce_dccg_construct( clk_dce, ctx, NULL, NULL, NULL); + clk_dce->dprefclk_khz = 600000; clk_dce->base.funcs = &dce120_funcs; return &clk_dce->base; @@ -903,6 +904,7 @@ struct dccg *dcn1_dccg_create(struct dc_context *ctx) clk_dce->dprefclk_ss_divider = 1000; clk_dce->ss_on_dprefclk = false; + clk_dce->dprefclk_khz = 600000; if (bp->integrated_info) clk_dce->dentist_vco_freq_khz = bp->integrated_info->dentist_vco_freq; if (clk_dce->dentist_vco_freq_khz == 0) { diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.h b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.h index 8be68eb..9179173 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.h +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.h @@ -90,6 +90,7 @@ struct dce_dccg { int dprefclk_ss_percentage; /* DPREFCLK SS percentage Divider (100 or 1000) */ int dprefclk_ss_divider; + int dprefclk_khz; }; -- 2.7.4