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drm/amd/display: Request min clocks after disabling pipes on init 

[Description]
- Request min clocks after disabling pipes on init
- This optimizes for power savings during init sequence
- Also handles the case where we boot up with no display connected

Tested-by: Daniel Wheeler <Daniel.Wheeler@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alvin Lee 2022-12-14 15:43:55 -05:00 committed by Alex Deucher
parent 9190d4a263
commit 58330ef165
1 changed files with 21 additions and 0 deletions
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21
drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
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@ -685,6 +685,25 @@ void dcn32_program_mall_pipe_config(struct dc *dc, struct dc_state *context)
}
}
static void dcn32_initialize_min_clocks(struct dc *dc)
{
struct dc_clocks *clocks = &dc->current_state->bw_ctx.bw.dcn.clk;
clocks->dcfclk_khz = dc->clk_mgr->bw_params->clk_table.entries[0].dcfclk_mhz * 1000;
clocks->socclk_khz = dc->clk_mgr->bw_params->clk_table.entries[0].socclk_mhz * 1000;
clocks->dramclk_khz = dc->clk_mgr->bw_params->clk_table.entries[0].memclk_mhz * 1000;
clocks->dppclk_khz = dc->clk_mgr->bw_params->clk_table.entries[0].dppclk_mhz * 1000;
clocks->dispclk_khz = dc->clk_mgr->bw_params->clk_table.entries[0].dispclk_mhz * 1000;
clocks->ref_dtbclk_khz = dc->clk_mgr->bw_params->clk_table.entries[0].dtbclk_mhz * 1000;
clocks->fclk_p_state_change_support = true;
clocks->p_state_change_support = true;
dc->clk_mgr->funcs->update_clocks(
dc->clk_mgr,
dc->current_state,
true);
}
void dcn32_init_hw(struct dc *dc)
{
struct abm **abms = dc->res_pool->multiple_abms;
@ -779,6 +798,8 @@ void dcn32_init_hw(struct dc *dc)
if (dc->res_pool->hubbub->funcs->allow_self_refresh_control)
dc->res_pool->hubbub->funcs->allow_self_refresh_control(dc->res_pool->hubbub,
!dc->res_pool->hubbub->ctx->dc->debug.disable_stutter);
dcn32_initialize_min_clocks(dc);
}
/* In headless boot cases, DIG may be turned