[PATCH] drm/radeon/dp_auxch: Ratelimit aux transfer debug messages

Lyude lyude at redhat.com
Wed Feb 22 21:34:53 UTC 2017

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 at redhat.com>
 drivers/gpu/drm/radeon/radeon_dp_auxch.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_dp_auxch.c b/drivers/gpu/drm/radeon/radeon_dp_auxch.c
index 474a8a18..12eac4e 100644
--- a/drivers/gpu/drm/radeon/radeon_dp_auxch.c
+++ b/drivers/gpu/drm/radeon/radeon_dp_auxch.c
@@ -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;

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