[PATCH] drm/amd/display: avoid printing ERROR for unknown CEA parse

Chen, Jiansong (Simon) Jiansong.Chen at amd.com
Tue Jul 13 06:24:13 UTC 2021

[AMD Official Use Only]

Is DRM_WARN more suitable for the case?

-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Guchun Chen
Sent: Tuesday, July 13, 2021 1:56 PM
To: amd-gfx at lists.freedesktop.org; Wang, Chao-kai (Stylon) <Stylon.Wang at amd.com>; Kazlauskas, Nicholas <Nicholas.Kazlauskas at amd.com>; Siqueira, Rodrigo <Rodrigo.Siqueira at amd.com>; Yin, Tianci (Rico) <Tianci.Yin at amd.com>
Cc: Chen, Guchun <Guchun.Chen at amd.com>
Subject: [PATCH] drm/amd/display: avoid printing ERROR for unknown CEA parse

For the unknown CEA parse case on DMUB-enabled ASICs, dmesg will print an error message like below, this will be captured by automation tools as it has the word like ERROR during boot up and treated as a false error, as it does not break bootup process.
So use DRM_INFO printing for this.

[drm:amdgpu_dm_update_freesync_caps [amdgpu]] *ERROR* Unknown EDID CEA parser results

Signed-off-by: Guchun Chen <guchun.chen at amd.com>
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 03db86bfaec8..613540b0766e 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -10700,7 +10700,7 @@ static bool dm_edid_parser_send_cea(struct amdgpu_display_manager *dm,
                vsdb->min_refresh_rate_hz = output->amd_vsdb.min_frame_rate;
                vsdb->max_refresh_rate_hz = output->amd_vsdb.max_frame_rate;
        } else {
-               DRM_ERROR("Unknown EDID CEA parser results\n");
+               DRM_INFO("Unknown EDID CEA parser results\n");
                return false;


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