linux-kernel - [PATCH 5.15 146/262] drm/amd/display: Reduce dmesg error to a debug print

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Date:   Mon,  7 Mar 2022 10:18:10 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, "Leo (Hanghong) Ma" <hanghong.ma@....com>,
        Nicholas Kazlauskas <nicholas.kazlauskas@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Mario Limonciello <mario.limonciello@....com>
Subject: [PATCH 5.15 146/262] drm/amd/display: Reduce dmesg error to a debug print

From: Leo (Hanghong) Ma <hanghong.ma@....com>

commit 1d925758ba1a5d2716a847903e2fd04efcbd9862 upstream.

[Why & How]
Dmesg errors are found on dcn3.1 during reset test, but it's not
a really failure. So reduce it to a debug print.

Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@....com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Cc: Mario Limonciello <mario.limonciello@....com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c   |    4 +++-
 drivers/gpu/drm/amd/display/include/logger_types.h |    3 +++
 2 files changed, 6 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -3650,7 +3650,9 @@ bool dp_retrieve_lttpr_cap(struct dc_lin
 				lttpr_dpcd_data,
 				sizeof(lttpr_dpcd_data));
 		if (status != DC_OK) {
-			dm_error("%s: Read LTTPR caps data failed.\n", __func__);
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+			DC_LOG_DP2("%s: Read LTTPR caps data failed.\n", __func__);
+#endif
 			return false;
 		}
 
--- a/drivers/gpu/drm/amd/display/include/logger_types.h
+++ b/drivers/gpu/drm/amd/display/include/logger_types.h
@@ -72,6 +72,9 @@
 #define DC_LOG_DSC(...) DRM_DEBUG_KMS(__VA_ARGS__)
 #define DC_LOG_SMU(...) pr_debug("[SMU_MSG]:"__VA_ARGS__)
 #define DC_LOG_DWB(...) DRM_DEBUG_KMS(__VA_ARGS__)
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+#define DC_LOG_DP2(...) DRM_DEBUG_KMS(__VA_ARGS__)
+#endif
 
 struct dal_logger;