diff options
| author | Reza Amini <reza.amini@amd.com> | 2023-06-26 21:50:01 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-07-18 18:16:23 +0300 |
| commit | da915efaa213a33451965db1314a75a39219df65 (patch) | |
| tree | 57ef91ed396b54c8ddc0b01a90d3b49e26947c48 /drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c | |
| parent | 085f7bd955129191d38314a5189c1c27ae014faa (diff) | |
| download | linux-da915efaa213a33451965db1314a75a39219df65.tar.xz | |
drm/amd/display: ABM pause toggle
[why]
Allow ABM states to be transferred across display
adapters for smooth display transitions.
[how]
We call DMUB to pause and get ABM states. We
transfer data to other gpu, and deliver data and
ask ABM to un-pause.
Reviewed-by: Harry Vanzylldejong <harry.vanzylldejong@amd.com>
Acked-by: Alan Liu <haoping.liu@amd.com>
Signed-off-by: Reza Amini <reza.amini@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c b/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c index 2fb9572ce25d..d3e6544022b7 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c @@ -27,6 +27,7 @@ #include "dmub_abm_lcd.h" #include "dc.h" #include "core_types.h" +#include "dmub_cmd.h" #define TO_DMUB_ABM(abm)\ container_of(abm, struct dce_abm, base) @@ -118,6 +119,32 @@ static bool dmub_abm_set_pause_ex(struct abm *abm, bool pause, unsigned int pane return ret; } +/***************************************************************************** + * dmub_abm_save_restore_ex() - calls dmub_abm_save_restore for preserving DMUB's + * Varibright states for LCD only. OLED is TBD + * @abm: used to check get dc context + * @panel_inst: panel instance index + * @pData: contains command to pause/un-pause abm and abm parameters + * + * + ***************************************************************************/ +static bool dmub_abm_save_restore_ex( + struct abm *abm, + unsigned int panel_inst, + struct abm_save_restore *pData) +{ + bool ret = false; + unsigned int feature_support; + struct dc_context *dc = abm->ctx; + + feature_support = abm_feature_support(abm, panel_inst); + + if (feature_support == ABM_LCD_SUPPORT) + ret = dmub_abm_save_restore(dc, panel_inst, pData); + + return ret; +} + static bool dmub_abm_set_pipe_ex(struct abm *abm, uint32_t otg_inst, uint32_t option, uint32_t panel_inst) { bool ret = false; @@ -155,6 +182,7 @@ static const struct abm_funcs abm_funcs = { .get_target_backlight = dmub_abm_get_target_backlight_ex, .init_abm_config = dmub_abm_init_config_ex, .set_abm_pause = dmub_abm_set_pause_ex, + .save_restore = dmub_abm_save_restore_ex, .set_pipe_ex = dmub_abm_set_pipe_ex, .set_backlight_level_pwm = dmub_abm_set_backlight_level_pwm_ex, }; |