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drm/amd/display: Enable ASSR in DM

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This patch enables ASSR if display declares such support in DPCD.

Signed-off-by: Stylon Wang <stylon.wang@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Stylon Wang 2021-02-23 18:32:09 +08:00 committed by Alex Deucher
parent f8f70c1371
commit 4588f7b7dd
1 changed files with 16 additions and 0 deletions
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16
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
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@ -1669,6 +1669,22 @@ bool perform_link_training_with_retries(
msleep(delay_dp_power_up_in_ms);
}
#ifdef CONFIG_DRM_AMD_DC_HDCP
if (panel_mode == DP_PANEL_MODE_EDP) {
struct cp_psp *cp_psp = &stream->ctx->cp_psp;
if (cp_psp && cp_psp->funcs.enable_assr) {
if (!cp_psp->funcs.enable_assr(cp_psp->handle, link)) {
/* since eDP implies ASSR on, change panel
* mode to disable ASSR
*/
panel_mode = DP_PANEL_MODE_DEFAULT;
}
} else
panel_mode = DP_PANEL_MODE_DEFAULT;
}
#endif
dp_set_panel_mode(link, panel_mode);
if (link->aux_access_disabled) {