From: Dmytro Laktyushkin <dmytro.laktyush...@amd.com>
This allows us to avoid any vbios bugs when initializing clocks
Change-Id: Id29c32528b3d98c625f8921c2ef50da7d3de454c
Signed-off-by: Dmytro Laktyushkin <dmytro.laktyush...@amd.com>
Reviewed-by: Charlene Liu <charlene....@amd.com>
Acked-by: Leo Li <sunpeng...@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
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