From: Martin Tsai Martin.Tsai@amd.com
[ Upstream commit 3a5fa55455db6a11248a25f24570c365f9246144 ]
[WHY] Some panels may not handle idle pattern properly during PSR entry.
[HOW] Add a condition to allow multiple options on power down sequence during PSR1 entry.
Reviewed-by: Anthony Koo anthony.koo@amd.com Signed-off-by: Martin Tsai Martin.Tsai@amd.com Signed-off-by: Alex Hung alex.hung@amd.com Tested-by: Daniel Wheeler daniel.wheeler@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/dc/dc_types.h | 7 +++++++ drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c | 4 ++++ drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 6 ++++++ 3 files changed, 17 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h index c8bdbbba44ef9..1aca9e96c474f 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_types.h @@ -1009,6 +1009,13 @@ struct psr_settings { unsigned int psr_sdp_transmit_line_num_deadline; uint8_t force_ffu_mode; unsigned int psr_power_opt; + + /** + * Some panels cannot handle idle pattern during PSR entry. + * To power down phy before disable stream to avoid sending + * idle pattern. + */ + uint8_t power_down_phy_before_disable_stream; };
enum replay_coasting_vtotal_type { diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c b/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c index cae18f8c1c9a0..8821153d0ac3b 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c @@ -419,6 +419,10 @@ static bool dmub_psr_copy_settings(struct dmub_psr *dmub, copy_settings_data->relock_delay_frame_cnt = 0; if (link->dpcd_caps.sink_dev_id == DP_BRANCH_DEVICE_ID_001CF8) copy_settings_data->relock_delay_frame_cnt = 2; + + copy_settings_data->power_down_phy_before_disable_stream = + link->psr_settings.power_down_phy_before_disable_stream; + copy_settings_data->dsc_slice_height = psr_context->dsc_slice_height;
dc_wake_and_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT); diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h index 7835100b37c41..d743368303682 100644 --- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h +++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h @@ -2869,6 +2869,12 @@ struct dmub_cmd_psr_copy_settings_data { * Some panels request main link off before xth vertical line */ uint16_t poweroff_before_vertical_line; + /** + * Some panels cannot handle idle pattern during PSR entry. + * To power down phy before disable stream to avoid sending + * idle pattern. + */ + uint8_t power_down_phy_before_disable_stream; };
/**