Commit 92c177b7 authored Feb 22, 2017 by Lyude Committed by Alex Deucher Mar 29, 2017

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>

parent 7bb0613e

drivers/gpu/drm/radeon/radeon_dp_auxch.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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;
		}