drm/radeon/dp_auxch: Ratelimit aux transfer debug messages
authorLyude <lyude@redhat.com>
Wed, 22 Feb 2017 21:34:53 +0000 (16:34 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 30 Mar 2017 03:53:21 +0000 (23:53 -0400)
Aux transfers always fail with non-zero status flags when there's
nothing connected on the port, so we don't usually need to see all of
the debugging information from it. Also, we try reprobing a -lot-, so
without ratelimiting most of the kernel log is filled up with messages
from radeon_dp_aux_transfer_native.

Signed-off-by: Lyude <lyude@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/radeon/radeon_dp_auxch.c

index 474a8a1..12eac4e 100644 (file)
@@ -168,7 +168,8 @@ radeon_dp_aux_transfer_native(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg
                goto done;
        }
        if (tmp & AUX_RX_ERROR_FLAGS) {
-               DRM_DEBUG_KMS("dp_aux_ch flags not zero: %08x\n", tmp);
+               DRM_DEBUG_KMS_RATELIMITED("dp_aux_ch flags not zero: %08x\n",
+                                         tmp);
                ret = -EIO;
                goto done;
        }