diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubbub.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubbub.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubbub.c index 6e2dbd03f9bf..31d6e79ba2b8 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubbub.c @@ -26,6 +26,7 @@ #include "dcn20_hubbub.h" #include "reg_helper.h" +#include "clk_mgr.h" #define REG(reg)\ hubbub1->regs->reg @@ -553,6 +554,16 @@ static void hubbub2_program_watermarks( */ hubbub1_program_urgent_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower); hubbub1_program_stutter_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower); + + /* + * There's a special case when going from p-state support to p-state unsupported + * here we are going to LOWER watermarks to go to dummy p-state only, but this has + * to be done prepare_bandwidth, not optimize + */ + if (hubbub1->base.ctx->dc->clk_mgr->clks.prev_p_state_change_support == true && + hubbub1->base.ctx->dc->clk_mgr->clks.p_state_change_support == false) + safe_to_lower = true; + hubbub1_program_pstate_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower); REG_SET(DCHUBBUB_ARB_SAT_LEVEL, 0, |