From ca9beb8aac68468f1778ad0e0fdad4e204f91393 Mon Sep 17 00:00:00 2001 From: Srinivasan Shanmugam Date: Thu, 13 Apr 2023 21:19:15 +0530 Subject: [PATCH] drm/amd/display: Add logging when setting DP sink power state fails Log if we fail to setup sink power states. Cc: Fangzhi Zuo Cc: Aurabindo Pillai Signed-off-by: Srinivasan Shanmugam Reviewed-by: Aurabindo Pillai Signed-off-by: Alex Deucher --- .../gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c index c840ef17802e..ba98013fecd0 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c @@ -1043,6 +1043,9 @@ static enum dc_status wake_up_aux_channel(struct dc_link *link) DP_SET_POWER, &dpcd_power_state, sizeof(dpcd_power_state)); + if (status < 0) + DC_LOG_DC("%s: Failed to power up sink: %s\n", __func__, + dpcd_power_state == DP_SET_POWER_D0 ? "D0" : "D3"); return DC_ERROR_UNEXPECTED; } -- 2.20.1