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drm/amd/display: Disable PSR-SU on some OLED panel

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[Why]
PSR-SU may cause some glitching randomly on some OLED panel.

[How]
Disable the PSR-SU for certain PSR-SU OLED panel.

Reviewed-by: Sun peng Li <sunpeng.li@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tom Chung 2025-01-10 16:09:45 +08:00 committed by Alex Deucher
parent 36681f15bb
commit c31b41f1cb
1 changed files with 20 additions and 0 deletions
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20
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
View File

@ -30,6 +30,23 @@
#include "amdgpu_dm.h"
#include "modules/power/power_helpers.h"
static bool is_specific_oled_panel(struct dc_link *link)
{
if (!link->dpcd_sink_ext_caps.bits.oled)
return false;
/* Disable PSR-SU for some OLED panels to avoid glitches */
if (link->dpcd_caps.sink_dev_id == 0xBA4159) {
uint8_t sink_dev_id_str1[] = {'4', '0', 'C', 'U', '1'};
if (!memcmp(link->dpcd_caps.sink_dev_id_str, sink_dev_id_str1,
sizeof(sink_dev_id_str1)))
return true;
}
return false;
}
static bool link_supports_psrsu(struct dc_link *link)
{
struct dc *dc = link->ctx->dc;
@ -40,6 +57,9 @@ static bool link_supports_psrsu(struct dc_link *link)
if (dc->ctx->dce_version < DCN_VERSION_3_1)
return false;
if (is_specific_oled_panel(link))
return false;
if (!is_psr_su_specific_panel(link))
return false;