drm/amd/display: Added new DMUB boot option for power optimization

[Why]
During Z10, root clock gating and memory low power registers needs to
to be restored if optimization is enabled in driver.

[How]
Added new DMUB boot option for root clock gating and memory low power.

Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Jake Wang <haonan.wang2@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h
index 717c0e5..cd204ee 100644 (file)
--- a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h
+++ b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h
@@ -238,6 +238,7 @@ struct dmub_srv_hw_params {
        bool load_inst_const;
        bool skip_panel_power_sequence;
        bool disable_z10;
+       bool power_optimization;
        bool dpia_supported;
        bool disable_dpia;
 };

diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c
index 10ebf20..fa05691 100644 (file)
--- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c
@@ -340,6 +340,7 @@ void dmub_dcn31_enable_dmub_boot_options(struct dmub_srv *dmub, const struct dmu
        boot_options.bits.z10_disable = params->disable_z10;
        boot_options.bits.dpia_supported = params->dpia_supported;
        boot_options.bits.enable_dpia = params->disable_dpia ? 0 : 1;
+       boot_options.bits.power_optimization = params->power_optimization;
 
        boot_options.bits.sel_mux_phy_c_d_phy_f_g = (dmub->asic == DMUB_ASIC_DCN31B) ? 1 : 0;