[PATCH] drm: dpcd: Print more useful information during error

[Aurabindo Pillai]

When DPCD access errors occur, knowing the register and request
associated with the error helps debugging, so print the
details in the debug message.

Signed-off-by: Aurabindo Pillai <mail at aurabindo.in>
---
 drivers/gpu/drm/drm_dp_helper.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index a5364b519..545606aac 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -257,7 +257,9 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
 			err = ret;
 	}
 
-	DRM_DEBUG_KMS("Too many retries, giving up. First error: %d\n", err);
+	DRM_DEBUG_KMS("dpcd: Too many retries, giving up. First error: %d\t"
+		      "address: %x\trequest: %x\t size:%zu\n",
+		      err, msg.address, msg.request, msg.size);
 	ret = err;
 
 unlock:
-- 
2.26.0