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drm/radeon/dp_auxch: Ratelimit aux transfer debug messages 

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>
This commit is contained in:
Lyude 2017-02-22 16:34:53 -05:00 committed by Alex Deucher
parent 7bb0613ebb
commit 92c177b794
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/radeon/radeon_dp_auxch.c
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@ -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;
}