Re: [PATCH] drm/amd/display: Avoid flooding unnecessary info messages

[Harry Wentland <harry.wentland@amd.com>]

On 2025-05-12 23:20, Wayne Lin wrote:
> 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>

Reviewed-by: Harry Wentland <harry.wentland@amd.com>

Harry

> ---
>  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;