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drm/amd/display: support main link off before specific vertical line

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[Why]
Some panels request main link off before specific vertical line.
If source turn off main link after specific vertical line then
panel defect will be exposed.

[How]
Add interface to support turn off main link before specific
vertical line

Reviewed-by: Robin Chen <robin.chen@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Paul Hsieh <paul.hsieh@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Paul Hsieh 2023-08-22 22:55:13 +08:00 committed by Alex Deucher
parent 73c57a0aa7
commit fae058b4d8
3 changed files with 12 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c
View File

@ -35,6 +35,7 @@
static const uint8_t DP_SINK_DEVICE_STR_ID_1[] = {7, 1, 8, 7, 3};
static const uint8_t DP_SINK_DEVICE_STR_ID_2[] = {7, 1, 8, 7, 5};
static const uint8_t DP_SINK_DEVICE_STR_ID_3[] = {0x42, 0x61, 0x6c, 0x73, 0x61};
/*
* Convert dmcub psr state to dmcu psr state.
@ -295,7 +296,7 @@ static bool dmub_psr_copy_settings(struct dmub_psr *dmub,
struct psr_context *psr_context,
uint8_t panel_inst)
{
union dmub_rb_cmd cmd;
union dmub_rb_cmd cmd = { 0 };
struct dc_context *dc = dmub->ctx;
struct dmub_cmd_psr_copy_settings_data *copy_settings_data
= &cmd.psr_copy_settings.psr_copy_settings_data;
@ -408,6 +409,13 @@ static bool dmub_psr_copy_settings(struct dmub_psr *dmub,
else
copy_settings_data->debug.bitfields.force_wakeup_by_tps3 = 0;
if (link->psr_settings.psr_version == DC_PSR_VERSION_1 &&
link->dpcd_caps.sink_dev_id == DP_DEVICE_ID_0022B9 &&
!memcmp(link->dpcd_caps.sink_dev_id_str, DP_SINK_DEVICE_STR_ID_3,
sizeof(DP_SINK_DEVICE_STR_ID_3))) {
copy_settings_data->poweroff_before_vertical_line = 16;
}
//WA for PSR1 on specific TCON, require frame delay for frame re-lock
copy_settings_data->relock_delay_frame_cnt = 0;
if (link->dpcd_caps.sink_dev_id == DP_BRANCH_DEVICE_ID_001CF8)

4
drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
View File

@ -2283,9 +2283,9 @@ struct dmub_cmd_psr_copy_settings_data {
*/
uint16_t dsc_slice_height;
/**
* Explicit padding to 4 byte boundary.
* Some panels request main link off before xth vertical line
*/
uint16_t pad;
uint16_t poweroff_before_vertical_line;
};
/**

1
drivers/gpu/drm/amd/display/include/ddc_service_types.h
View File

@ -39,6 +39,7 @@
#define DP_BRANCH_HW_REV_10 0x10
#define DP_BRANCH_HW_REV_20 0x20
#define DP_DEVICE_ID_0022B9 0x0022B9
#define DP_DEVICE_ID_38EC11 0x38EC11
#define DP_DEVICE_ID_BA4159 0xBA4159
#define DP_FORCE_PSRSU_CAPABILITY 0x40F