From: Alvin Lee Date: Mon, 12 Feb 2024 19:43:08 +0000 (-0500) Subject: drm/amd/display: Allow idle opts for no flip case on PSR panel X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e37f5bd8cbdc5f20ff86c13686b1a2b8f0f5bdc6;p=linux.git drm/amd/display: Allow idle opts for no flip case on PSR panel [Why & How] There is a corner case where a single PSR panel fails to enter idle optimizations if the panel is not flipping (no planes or DPMS_OFF == true). This is because the panel will not enter PSR if it's not flipping, but this will prevent the FW idle opt path from being executed. To handle this case we will allow entry to idle opt from driver side even when a PSR panel is connected under the following scenarios: 1. Only a single PSR panel is connected 2. PSR panel is not flipping Reviewed-by: Samson Tam Acked-by: Tom Chung Signed-off-by: Alvin Lee Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c index c0b526cf17865..a5e92389615ff 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c @@ -261,7 +261,9 @@ bool dcn32_apply_idle_power_optimizations(struct dc *dc, bool enable) for (i = 0; i < dc->current_state->stream_count; i++) { /* MALL SS messaging is not supported with PSR at this time */ if (dc->current_state->streams[i] != NULL && - dc->current_state->streams[i]->link->psr_settings.psr_version != DC_PSR_VERSION_UNSUPPORTED) + dc->current_state->streams[i]->link->psr_settings.psr_version != DC_PSR_VERSION_UNSUPPORTED && + (dc->current_state->stream_count > 1 || (!dc->current_state->streams[i]->dpms_off && + dc->current_state->stream_status[i].plane_count > 0))) return false; }