diff options
| author | Chris Park <Chris.Park@amd.com> | 2020-08-05 20:46:40 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-08-17 21:07:08 +0300 |
| commit | 8a0e210c048e97f950c674840e281e378de08373 (patch) | |
| tree | 8fb1eb93c57c6a9deb1144042f9faa3e0631af8b /drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | |
| parent | 1ffe92021e6cd27ee9ccc30012a57d8a4868e28f (diff) | |
| download | linux-8a0e210c048e97f950c674840e281e378de08373.tar.xz | |
drm/amd/display: Call DMUB for eDP power control
[Why]
If DMUB is used, LVTMA VBIOS call can be used to control eDP instead of
tranditional transmitter control. Interface is agreed with VBIOS for
eDP to use this new path to program LVTMA registers.
[How]
Create DAL interface to send DMUB command for LVTMA as currently
implemented in VBIOS.
Signed-off-by: Chris Park <Chris.Park@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index 49380ed3aeae..45c9e9027886 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -842,6 +842,17 @@ void dce110_edp_power_control( cntl.coherent = false; cntl.lanes_number = LANE_COUNT_FOUR; cntl.hpd_sel = link->link_enc->hpd_source; + + if (ctx->dc->ctx->dmub_srv && + ctx->dc->debug.dmub_command_table) { + if (cntl.action == TRANSMITTER_CONTROL_POWER_ON) + bp_result = ctx->dc_bios->funcs->enable_lvtma_control(ctx->dc_bios, + LVTMA_CONTROL_POWER_ON); + else + bp_result = ctx->dc_bios->funcs->enable_lvtma_control(ctx->dc_bios, + LVTMA_CONTROL_POWER_OFF); + } + bp_result = link_transmitter_control(ctx->dc_bios, &cntl); if (!power_up) @@ -919,8 +930,21 @@ void dce110_edp_backlight_control( /*edp 1.2*/ if (cntl.action == TRANSMITTER_CONTROL_BACKLIGHT_ON) edp_receiver_ready_T7(link); + + if (ctx->dc->ctx->dmub_srv && + ctx->dc->debug.dmub_command_table) { + if (cntl.action == TRANSMITTER_CONTROL_BACKLIGHT_ON) + ctx->dc_bios->funcs->enable_lvtma_control(ctx->dc_bios, + LVTMA_CONTROL_LCD_BLON); + else + ctx->dc_bios->funcs->enable_lvtma_control(ctx->dc_bios, + LVTMA_CONTROL_LCD_BLOFF); + } + link_transmitter_control(ctx->dc_bios, &cntl); + + if (enable && link->dpcd_sink_ext_caps.bits.oled) msleep(OLED_POST_T7_DELAY); |