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Thanks!

Regards, Wayne

-----Original Message----- From: Wayne Lin Wayne.Lin@amd.com Sent: Tuesday, May 13, 2025 11:13 AM To: Wentland, Harry Harry.Wentland@amd.com; Limonciello, Mario Mario.Limonciello@amd.com; Deucher, Alexander Alexander.Deucher@amd.com Cc: Lin, Wayne Wayne.Lin@amd.com; stable@vger.kernel.org Subject: [PATCH] drm/amd/display: Avoid flooding unnecessary info messages

It's expected that we'll encounter temporary exceptions during aux transactions. Adjust logging from drm_info to drm_dbg_dp to prevent flooding with unnecessary log messages.

Fixes: 6285f12bc54c ("drm/amd/display: Fix wrong handling for AUX_DEFER case") Cc: stable@vger.kernel.org Cc: Mario Limonciello mario.limonciello@amd.com Cc: Alex Deucher alexander.deucher@amd.com Signed-off-by: Wayne Lin Wayne.Lin@amd.com

---

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index 0d7b72c75802..25e8befbcc47 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -107,7 +107,7 @@ static ssize_t dm_dp_aux_transfer(struct drm_dp_aux *aux, if (payload.write && result >= 0) { if (result) { /*one byte indicating partially written bytes*/

•                 drm_info(adev_to_drm(adev), "amdgpu: AUX partially
  

written\n");

•                 drm_dbg_dp(adev_to_drm(adev), "amdgpu: AUX partially
  

written\n"); result = payload.data[0]; } else if (!payload.reply[0]) /*I2C_ACK|AUX_ACK*/ @@ -133,11 +133,11 @@ static ssize_t dm_dp_aux_transfer(struct drm_dp_aux *aux, break; }

•         drm_info(adev_to_drm(adev), "amdgpu: DP AUX transfer fail:%d\n",
  

operation_result);

•         drm_dbg_dp(adev_to_drm(adev), "amdgpu: DP AUX transfer
  

fail:%d\n", +operation_result); }

  if (payload.reply[0])

•         drm_info(adev_to_drm(adev), "amdgpu: AUX reply command not
  

ACK: 0x%02x.",

•         drm_dbg_dp(adev_to_drm(adev), "amdgpu: AUX reply command not
  

ACK: +0x%02x.", payload.reply[0]);

  return result;

-- 2.43.0