drm/i915/dp: Ratelimit DP aux timeout messages

Right now this is just leaving a lot of spam in dmesg that makes real
issues more difficult to debug. As well (as noted by the comment right
above the DRM_DEBUG_KMS() call) this is normal behavior when there's
nothing connected to the DisplayPort connector.

Signed-off-by: Lyude <lyude@redhat.com>

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 024798a..fca0fca 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1121,7 +1121,8 @@ done:
        /* Timeouts occur when the device isn't connected, so they're
         * "normal" -- don't fill the kernel log with these */
        if (status & DP_AUX_CH_CTL_TIME_OUT_ERROR) {
-               DRM_DEBUG_KMS("dp_aux_ch timeout status 0x%08x\n", status);
+               DRM_DEBUG_KMS_RATELIMITED("dp_aux_ch timeout status 0x%08x\n",
+                                         status);
                ret = -ETIMEDOUT;
                goto out;
        }